./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--scsi--mpt2sas--mpt2sas.ko-ldv_main4_sequence_infinite_withcheck_stateful.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_bf4bf260-b9d2-4499-a350-817a0b4c0643/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4bf260-b9d2-4499-a350-817a0b4c0643/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_bf4bf260-b9d2-4499-a350-817a0b4c0643/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4bf260-b9d2-4499-a350-817a0b4c0643/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--scsi--mpt2sas--mpt2sas.ko-ldv_main4_sequence_infinite_withcheck_stateful.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4bf260-b9d2-4499-a350-817a0b4c0643/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_bf4bf260-b9d2-4499-a350-817a0b4c0643/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 fcc9c58d9e7d331b03ac2a1d31f7075375278be740d6cb0fb532894b4718ca6e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 06:05:14,397 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 06:05:14,399 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 06:05:14,444 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 06:05:14,445 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 06:05:14,446 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 06:05:14,448 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 06:05:14,450 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 06:05:14,452 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 06:05:14,453 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 06:05:14,454 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 06:05:14,456 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 06:05:14,456 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 06:05:14,458 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 06:05:14,459 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 06:05:14,461 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 06:05:14,462 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 06:05:14,463 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 06:05:14,465 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 06:05:14,467 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 06:05:14,469 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 06:05:14,471 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 06:05:14,472 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 06:05:14,473 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 06:05:14,477 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 06:05:14,477 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 06:05:14,478 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 06:05:14,479 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 06:05:14,479 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 06:05:14,480 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 06:05:14,481 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 06:05:14,482 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 06:05:14,483 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 06:05:14,483 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 06:05:14,485 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 06:05:14,485 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 06:05:14,486 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 06:05:14,486 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 06:05:14,487 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 06:05:14,488 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 06:05:14,489 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 06:05:14,489 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4bf260-b9d2-4499-a350-817a0b4c0643/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-20 06:05:14,515 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 06:05:14,515 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 06:05:14,516 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 06:05:14,516 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 06:05:14,516 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 06:05:14,517 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 06:05:14,517 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 06:05:14,517 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 06:05:14,518 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 06:05:14,518 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 06:05:14,518 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 06:05:14,518 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 06:05:14,518 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 06:05:14,519 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 06:05:14,519 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 06:05:14,519 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 06:05:14,519 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 06:05:14,519 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 06:05:14,520 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 06:05:14,520 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 06:05:14,520 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 06:05:14,520 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:05:14,520 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 06:05:14,521 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 06:05:14,521 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 06:05:14,521 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 06:05:14,521 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 06:05:14,521 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 06:05:14,521 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 06:05:14,522 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 06:05:14,522 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 06:05:14,522 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_bf4bf260-b9d2-4499-a350-817a0b4c0643/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4bf260-b9d2-4499-a350-817a0b4c0643/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fcc9c58d9e7d331b03ac2a1d31f7075375278be740d6cb0fb532894b4718ca6e [2021-11-20 06:05:14,763 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 06:05:14,791 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 06:05:14,794 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 06:05:14,795 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 06:05:14,796 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 06:05:14,797 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4bf260-b9d2-4499-a350-817a0b4c0643/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--scsi--mpt2sas--mpt2sas.ko-ldv_main4_sequence_infinite_withcheck_stateful.cil.out.i [2021-11-20 06:05:14,891 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4bf260-b9d2-4499-a350-817a0b4c0643/bin/uautomizer-DQz5hQGWxF/data/98fe5e431/76ff420453a84f55a8be1df0da079bfb/FLAG5a52eb2d4 [2021-11-20 06:05:16,056 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 06:05:16,057 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4bf260-b9d2-4499-a350-817a0b4c0643/sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--scsi--mpt2sas--mpt2sas.ko-ldv_main4_sequence_infinite_withcheck_stateful.cil.out.i [2021-11-20 06:05:16,140 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4bf260-b9d2-4499-a350-817a0b4c0643/bin/uautomizer-DQz5hQGWxF/data/98fe5e431/76ff420453a84f55a8be1df0da079bfb/FLAG5a52eb2d4 [2021-11-20 06:05:16,225 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4bf260-b9d2-4499-a350-817a0b4c0643/bin/uautomizer-DQz5hQGWxF/data/98fe5e431/76ff420453a84f55a8be1df0da079bfb [2021-11-20 06:05:16,228 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 06:05:16,231 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 06:05:16,233 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 06:05:16,233 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 06:05:16,236 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 06:05:16,237 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:05:16" (1/1) ... [2021-11-20 06:05:16,238 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f18391f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:05:16, skipping insertion in model container [2021-11-20 06:05:16,238 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:05:16" (1/1) ... [2021-11-20 06:05:16,246 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 06:05:16,644 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 06:05:25,570 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_bf4bf260-b9d2-4499-a350-817a0b4c0643/sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--scsi--mpt2sas--mpt2sas.ko-ldv_main4_sequence_infinite_withcheck_stateful.cil.out.i[890446,890459] [2021-11-20 06:05:25,855 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:05:25,908 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 06:05:27,086 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_bf4bf260-b9d2-4499-a350-817a0b4c0643/sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--scsi--mpt2sas--mpt2sas.ko-ldv_main4_sequence_infinite_withcheck_stateful.cil.out.i[890446,890459] [2021-11-20 06:05:27,101 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:05:27,482 INFO L208 MainTranslator]: Completed translation [2021-11-20 06:05:27,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:05:27 WrapperNode [2021-11-20 06:05:27,484 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 06:05:27,485 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 06:05:27,486 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 06:05:27,486 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 06:05:27,494 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:05:27" (1/1) ... [2021-11-20 06:05:27,778 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:05:27" (1/1) ... [2021-11-20 06:05:28,162 INFO L137 Inliner]: procedures = 757, calls = 11058, calls flagged for inlining = 310, calls inlined = 146, statements flattened = 13554 [2021-11-20 06:05:28,163 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 06:05:28,164 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 06:05:28,164 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 06:05:28,164 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 06:05:28,174 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:05:27" (1/1) ... [2021-11-20 06:05:28,175 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:05:27" (1/1) ... [2021-11-20 06:05:28,268 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:05:27" (1/1) ... [2021-11-20 06:05:28,269 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:05:27" (1/1) ... [2021-11-20 06:05:28,842 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:05:27" (1/1) ... [2021-11-20 06:05:28,893 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:05:27" (1/1) ... [2021-11-20 06:05:28,977 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:05:27" (1/1) ... [2021-11-20 06:05:29,093 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 06:05:29,094 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 06:05:29,094 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 06:05:29,094 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 06:05:29,095 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:05:27" (1/1) ... [2021-11-20 06:05:29,103 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:05:29,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4bf260-b9d2-4499-a350-817a0b4c0643/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:05:29,128 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4bf260-b9d2-4499-a350-817a0b4c0643/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 06:05:29,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4bf260-b9d2-4499-a350-817a0b4c0643/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 06:05:29,172 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_expander_remove [2021-11-20 06:05:29,173 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_expander_remove [2021-11-20 06:05:29,173 INFO L130 BoogieDeclarations]: Found specification of procedure _base_event_notification [2021-11-20 06:05:29,173 INFO L138 BoogieDeclarations]: Found implementation of procedure _base_event_notification [2021-11-20 06:05:29,173 INFO L130 BoogieDeclarations]: Found specification of procedure sas_phy_alloc [2021-11-20 06:05:29,174 INFO L138 BoogieDeclarations]: Found implementation of procedure sas_phy_alloc [2021-11-20 06:05:29,174 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~dma_addr_t~0~TO~VOID [2021-11-20 06:05:29,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~dma_addr_t~0~TO~VOID [2021-11-20 06:05:29,174 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_check_device [2021-11-20 06:05:29,174 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_check_device [2021-11-20 06:05:29,174 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_scsih_sas_device_find_by_sas_address [2021-11-20 06:05:29,175 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_scsih_sas_device_find_by_sas_address [2021-11-20 06:05:29,175 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_get_state [2021-11-20 06:05:29,175 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_get_state [2021-11-20 06:05:29,175 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_init_warpdrive_properties [2021-11-20 06:05:29,175 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_init_warpdrive_properties [2021-11-20 06:05:29,175 INFO L130 BoogieDeclarations]: Found specification of procedure _base_handshake_req_reply_wait [2021-11-20 06:05:29,176 INFO L138 BoogieDeclarations]: Found implementation of procedure _base_handshake_req_reply_wait [2021-11-20 06:05:29,176 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_prep_device_scan [2021-11-20 06:05:29,176 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_prep_device_scan [2021-11-20 06:05:29,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-20 06:05:29,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-20 06:05:29,177 INFO L130 BoogieDeclarations]: Found specification of procedure _base_writeq [2021-11-20 06:05:29,177 INFO L138 BoogieDeclarations]: Found implementation of procedure _base_writeq [2021-11-20 06:05:29,177 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_sas_topology_change_event [2021-11-20 06:05:29,177 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_sas_topology_change_event [2021-11-20 06:05:29,177 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work [2021-11-20 06:05:29,177 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work [2021-11-20 06:05:29,178 INFO L130 BoogieDeclarations]: Found specification of procedure sas_phy_free [2021-11-20 06:05:29,178 INFO L138 BoogieDeclarations]: Found implementation of procedure sas_phy_free [2021-11-20 06:05:29,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of__internal_cmd [2021-11-20 06:05:29,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of__internal_cmd [2021-11-20 06:05:29,178 INFO L130 BoogieDeclarations]: Found specification of procedure _config_request [2021-11-20 06:05:29,178 INFO L138 BoogieDeclarations]: Found implementation of procedure _config_request [2021-11-20 06:05:29,179 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-20 06:05:29,179 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-20 06:05:29,179 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_device_remove_by_handle [2021-11-20 06:05:29,179 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_device_remove_by_handle [2021-11-20 06:05:29,179 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_pcie_error_reporting [2021-11-20 06:05:29,179 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_pcie_error_reporting [2021-11-20 06:05:29,180 INFO L130 BoogieDeclarations]: Found specification of procedure _ctl_do_mpt_command [2021-11-20 06:05:29,180 INFO L138 BoogieDeclarations]: Found implementation of procedure _ctl_do_mpt_command [2021-11-20 06:05:29,180 INFO L130 BoogieDeclarations]: Found specification of procedure sas_phy_add [2021-11-20 06:05:29,180 INFO L138 BoogieDeclarations]: Found implementation of procedure sas_phy_add [2021-11-20 06:05:29,180 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_config_get_number_pds [2021-11-20 06:05:29,181 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_config_get_number_pds [2021-11-20 06:05:29,181 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_scan_start [2021-11-20 06:05:29,181 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_scan_start [2021-11-20 06:05:29,181 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-20 06:05:29,181 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-20 06:05:29,181 INFO L130 BoogieDeclarations]: Found specification of procedure ssleep [2021-11-20 06:05:29,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ssleep [2021-11-20 06:05:29,182 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_raid_device_add [2021-11-20 06:05:29,182 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_raid_device_add [2021-11-20 06:05:29,182 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_search_responding_expanders [2021-11-20 06:05:29,182 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_search_responding_expanders [2021-11-20 06:05:29,183 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_slave_destroy [2021-11-20 06:05:29,183 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_slave_destroy [2021-11-20 06:05:29,183 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_add_device [2021-11-20 06:05:29,183 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_add_device [2021-11-20 06:05:29,183 INFO L130 BoogieDeclarations]: Found specification of procedure _ctl_send_release [2021-11-20 06:05:29,183 INFO L138 BoogieDeclarations]: Found implementation of procedure _ctl_send_release [2021-11-20 06:05:29,184 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-20 06:05:29,184 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-20 06:05:29,184 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_ir_shutdown [2021-11-20 06:05:29,184 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_ir_shutdown [2021-11-20 06:05:29,184 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-20 06:05:29,185 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-20 06:05:29,185 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_destroy [2021-11-20 06:05:29,185 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_destroy [2021-11-20 06:05:29,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 06:05:29,185 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-20 06:05:29,185 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-20 06:05:29,186 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_base_build_zero_len_sge [2021-11-20 06:05:29,186 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_base_build_zero_len_sge [2021-11-20 06:05:29,186 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_sas_device_add [2021-11-20 06:05:29,186 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_sas_device_add [2021-11-20 06:05:29,186 INFO L130 BoogieDeclarations]: Found specification of procedure _base_make_ioc_ready [2021-11-20 06:05:29,186 INFO L138 BoogieDeclarations]: Found implementation of procedure _base_make_ioc_ready [2021-11-20 06:05:29,187 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_scsih_reset_handler [2021-11-20 06:05:29,187 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_scsih_reset_handler [2021-11-20 06:05:29,187 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_remove_device [2021-11-20 06:05:29,187 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_remove_device [2021-11-20 06:05:29,187 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_config_get_volume_wwid [2021-11-20 06:05:29,187 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_config_get_volume_wwid [2021-11-20 06:05:29,188 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-11-20 06:05:29,188 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-11-20 06:05:29,188 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_remove_target [2021-11-20 06:05:29,188 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_remove_target [2021-11-20 06:05:29,188 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-20 06:05:29,189 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-20 06:05:29,189 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_shutdown [2021-11-20 06:05:29,189 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_shutdown [2021-11-20 06:05:29,189 INFO L130 BoogieDeclarations]: Found specification of procedure _base_free_irq [2021-11-20 06:05:29,189 INFO L138 BoogieDeclarations]: Found implementation of procedure _base_free_irq [2021-11-20 06:05:29,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-20 06:05:29,190 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-20 06:05:29,190 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-20 06:05:29,190 INFO L130 BoogieDeclarations]: Found specification of procedure _ctl_display_some_debug [2021-11-20 06:05:29,190 INFO L138 BoogieDeclarations]: Found implementation of procedure _ctl_display_some_debug [2021-11-20 06:05:29,190 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-20 06:05:29,191 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-20 06:05:29,191 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2021-11-20 06:05:29,191 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2021-11-20 06:05:29,191 INFO L130 BoogieDeclarations]: Found specification of procedure _ctl_ioctl_main [2021-11-20 06:05:29,191 INFO L138 BoogieDeclarations]: Found implementation of procedure _ctl_ioctl_main [2021-11-20 06:05:29,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-20 06:05:29,192 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_transport_add_expander_phy [2021-11-20 06:05:29,192 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_transport_add_expander_phy [2021-11-20 06:05:29,192 INFO L130 BoogieDeclarations]: Found specification of procedure _base_wait_for_doorbell_ack [2021-11-20 06:05:29,192 INFO L138 BoogieDeclarations]: Found implementation of procedure _base_wait_for_doorbell_ack [2021-11-20 06:05:29,192 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_transport_add_host_phy [2021-11-20 06:05:29,192 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_transport_add_host_phy [2021-11-20 06:05:29,193 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2021-11-20 06:05:29,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2021-11-20 06:05:29,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 06:05:29,193 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_config_get_manufacturing_pg0 [2021-11-20 06:05:29,193 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_config_get_manufacturing_pg0 [2021-11-20 06:05:29,193 INFO L130 BoogieDeclarations]: Found specification of procedure _base_disable_msix [2021-11-20 06:05:29,194 INFO L138 BoogieDeclarations]: Found implementation of procedure _base_disable_msix [2021-11-20 06:05:29,194 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_ublock_io_device [2021-11-20 06:05:29,194 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_ublock_io_device [2021-11-20 06:05:29,194 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_base_detach [2021-11-20 06:05:29,194 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_base_detach [2021-11-20 06:05:29,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-20 06:05:29,195 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-20 06:05:29,195 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_config_get_manufacturing_pg10 [2021-11-20 06:05:29,195 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_config_get_manufacturing_pg10 [2021-11-20 06:05:29,195 INFO L130 BoogieDeclarations]: Found specification of procedure list_move_tail [2021-11-20 06:05:29,195 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move_tail [2021-11-20 06:05:29,196 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_scsi_lookup_get_clear [2021-11-20 06:05:29,196 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_scsi_lookup_get_clear [2021-11-20 06:05:29,196 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_disable_ddio [2021-11-20 06:05:29,196 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_disable_ddio [2021-11-20 06:05:29,196 INFO L130 BoogieDeclarations]: Found specification of procedure _ctl_diag_capability [2021-11-20 06:05:29,196 INFO L138 BoogieDeclarations]: Found implementation of procedure _ctl_diag_capability [2021-11-20 06:05:29,197 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_internal_device_unblock [2021-11-20 06:05:29,197 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_internal_device_unblock [2021-11-20 06:05:29,197 INFO L130 BoogieDeclarations]: Found specification of procedure _debug_dump_mf [2021-11-20 06:05:29,197 INFO L138 BoogieDeclarations]: Found implementation of procedure _debug_dump_mf [2021-11-20 06:05:29,197 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-11-20 06:05:29,197 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-11-20 06:05:29,198 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_raid_device_remove [2021-11-20 06:05:29,198 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_raid_device_remove [2021-11-20 06:05:29,198 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-20 06:05:29,198 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-20 06:05:29,198 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-11-20 06:05:29,198 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-11-20 06:05:29,199 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-20 06:05:29,199 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-20 06:05:29,199 INFO L130 BoogieDeclarations]: Found specification of procedure _firmware_event_work [2021-11-20 06:05:29,199 INFO L138 BoogieDeclarations]: Found implementation of procedure _firmware_event_work [2021-11-20 06:05:29,199 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_is_host_device [2021-11-20 06:05:29,199 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_is_host_device [2021-11-20 06:05:29,200 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2021-11-20 06:05:29,200 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2021-11-20 06:05:29,200 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_target [2021-11-20 06:05:29,200 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_target [2021-11-20 06:05:29,200 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_base_get_smid_scsiio [2021-11-20 06:05:29,200 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_base_get_smid_scsiio [2021-11-20 06:05:29,201 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2021-11-20 06:05:29,201 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2021-11-20 06:05:29,201 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 06:05:29,201 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2021-11-20 06:05:29,201 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2021-11-20 06:05:29,201 INFO L130 BoogieDeclarations]: Found specification of procedure _transport_convert_phy_link_rate [2021-11-20 06:05:29,202 INFO L138 BoogieDeclarations]: Found implementation of procedure _transport_convert_phy_link_rate [2021-11-20 06:05:29,202 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_sas_ir_config_change_event [2021-11-20 06:05:29,202 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_sas_ir_config_change_event [2021-11-20 06:05:29,202 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_base_fault_info [2021-11-20 06:05:29,202 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_base_fault_info [2021-11-20 06:05:29,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 06:05:29,202 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-20 06:05:29,203 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-20 06:05:29,203 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_get_sas_address [2021-11-20 06:05:29,203 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_get_sas_address [2021-11-20 06:05:29,203 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_config_get_sas_iounit_pg1 [2021-11-20 06:05:29,203 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_config_get_sas_iounit_pg1 [2021-11-20 06:05:29,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 06:05:29,204 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_sas_pd_add [2021-11-20 06:05:29,204 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_sas_pd_add [2021-11-20 06:05:29,204 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_config_get_sas_iounit_pg0 [2021-11-20 06:05:29,204 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_config_get_sas_iounit_pg0 [2021-11-20 06:05:29,204 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-20 06:05:29,204 INFO L130 BoogieDeclarations]: Found specification of procedure _transport_set_identify [2021-11-20 06:05:29,205 INFO L138 BoogieDeclarations]: Found implementation of procedure _transport_set_identify [2021-11-20 06:05:29,205 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-20 06:05:29,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-20 06:05:29,205 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_enable_diag_buffer [2021-11-20 06:05:29,205 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_enable_diag_buffer [2021-11-20 06:05:29,205 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_put [2021-11-20 06:05:29,206 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_put [2021-11-20 06:05:29,206 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_sas_host_refresh [2021-11-20 06:05:29,206 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_sas_host_refresh [2021-11-20 06:05:29,206 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_config_set_iounit_pg1 [2021-11-20 06:05:29,206 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_config_set_iounit_pg1 [2021-11-20 06:05:29,206 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_raid_device_find_by_wwid [2021-11-20 06:05:29,206 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_raid_device_find_by_wwid [2021-11-20 06:05:29,207 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_base_scsi_enclosure_processor [2021-11-20 06:05:29,207 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_base_scsi_enclosure_processor [2021-11-20 06:05:29,207 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_sas_pd_hide [2021-11-20 06:05:29,207 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_sas_pd_hide [2021-11-20 06:05:29,207 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_transport_update_links [2021-11-20 06:05:29,207 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_transport_update_links [2021-11-20 06:05:29,208 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_turn_on_fault_led [2021-11-20 06:05:29,208 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_turn_on_fault_led [2021-11-20 06:05:29,208 INFO L130 BoogieDeclarations]: Found specification of procedure _base_wait_for_doorbell_int [2021-11-20 06:05:29,208 INFO L138 BoogieDeclarations]: Found implementation of procedure _base_wait_for_doorbell_int [2021-11-20 06:05:29,208 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_get_resync [2021-11-20 06:05:29,208 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_get_resync [2021-11-20 06:05:29,209 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of__internal_cmd [2021-11-20 06:05:29,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of__internal_cmd [2021-11-20 06:05:29,209 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_check_access_status [2021-11-20 06:05:29,209 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_check_access_status [2021-11-20 06:05:29,209 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_config_get_volume_handle [2021-11-20 06:05:29,209 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_config_get_volume_handle [2021-11-20 06:05:29,210 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_config_get_expander_pg0 [2021-11-20 06:05:29,210 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_config_get_expander_pg0 [2021-11-20 06:05:29,210 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_config_get_expander_pg1 [2021-11-20 06:05:29,210 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_config_get_expander_pg1 [2021-11-20 06:05:29,210 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-20 06:05:29,210 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-20 06:05:29,211 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-20 06:05:29,211 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-20 06:05:29,211 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_base_get_smid_hpr [2021-11-20 06:05:29,211 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_base_get_smid_hpr [2021-11-20 06:05:29,211 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_raid_device_find_by_handle [2021-11-20 06:05:29,211 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_raid_device_find_by_handle [2021-11-20 06:05:29,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of__internal_cmd [2021-11-20 06:05:29,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of__internal_cmd [2021-11-20 06:05:29,212 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_device_remove_by_sas_address [2021-11-20 06:05:29,212 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_device_remove_by_sas_address [2021-11-20 06:05:29,212 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_selected_regions [2021-11-20 06:05:29,212 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_selected_regions [2021-11-20 06:05:29,212 INFO L130 BoogieDeclarations]: Found specification of procedure _base_reset_handler [2021-11-20 06:05:29,213 INFO L138 BoogieDeclarations]: Found implementation of procedure _base_reset_handler [2021-11-20 06:05:29,213 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_base_hard_reset_handler [2021-11-20 06:05:29,213 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_base_hard_reset_handler [2021-11-20 06:05:29,213 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2021-11-20 06:05:29,213 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2021-11-20 06:05:29,213 INFO L130 BoogieDeclarations]: Found specification of procedure _base_get_msix_index [2021-11-20 06:05:29,214 INFO L138 BoogieDeclarations]: Found implementation of procedure _base_get_msix_index [2021-11-20 06:05:29,214 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-11-20 06:05:29,214 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-11-20 06:05:29,214 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-20 06:05:29,214 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-20 06:05:29,214 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-20 06:05:29,215 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-20 06:05:29,215 INFO L130 BoogieDeclarations]: Found specification of procedure shost_priv [2021-11-20 06:05:29,215 INFO L138 BoogieDeclarations]: Found implementation of procedure shost_priv [2021-11-20 06:05:29,215 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_sas_discovery_event [2021-11-20 06:05:29,215 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_sas_discovery_event [2021-11-20 06:05:29,215 INFO L130 BoogieDeclarations]: Found specification of procedure _base_make_ioc_operational [2021-11-20 06:05:29,216 INFO L138 BoogieDeclarations]: Found implementation of procedure _base_make_ioc_operational [2021-11-20 06:05:29,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 06:05:29,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 06:05:29,216 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_transport_port_remove [2021-11-20 06:05:29,216 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_transport_port_remove [2021-11-20 06:05:29,216 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_base_free_resources [2021-11-20 06:05:29,217 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_base_free_resources [2021-11-20 06:05:29,217 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-20 06:05:29,217 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-20 06:05:29,217 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_get_num_volumes [2021-11-20 06:05:29,217 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_get_num_volumes [2021-11-20 06:05:29,217 INFO L130 BoogieDeclarations]: Found specification of procedure _ctl_diag_register_2 [2021-11-20 06:05:29,218 INFO L138 BoogieDeclarations]: Found implementation of procedure _ctl_diag_register_2 [2021-11-20 06:05:29,218 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_transport_port_add [2021-11-20 06:05:29,218 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_transport_port_add [2021-11-20 06:05:29,218 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_config_get_number_hba_phys [2021-11-20 06:05:29,218 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_config_get_number_hba_phys [2021-11-20 06:05:29,218 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-20 06:05:29,219 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-20 06:05:29,219 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-20 06:05:29,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-20 06:05:29,219 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_raid_device_find_by_id [2021-11-20 06:05:29,219 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_raid_device_find_by_id [2021-11-20 06:05:29,219 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_is_boot_device [2021-11-20 06:05:29,220 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_is_boot_device [2021-11-20 06:05:29,220 INFO L130 BoogieDeclarations]: Found specification of procedure int_to_scsilun [2021-11-20 06:05:29,220 INFO L138 BoogieDeclarations]: Found implementation of procedure int_to_scsilun [2021-11-20 06:05:29,220 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_timeout [2021-11-20 06:05:29,220 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_timeout [2021-11-20 06:05:29,220 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2021-11-20 06:05:29,220 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2021-11-20 06:05:29,221 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-20 06:05:29,221 INFO L130 BoogieDeclarations]: Found specification of procedure _base_release_memory_pools [2021-11-20 06:05:29,221 INFO L138 BoogieDeclarations]: Found implementation of procedure _base_release_memory_pools [2021-11-20 06:05:29,221 INFO L130 BoogieDeclarations]: Found specification of procedure _debug_dump_mf___1 [2021-11-20 06:05:29,221 INFO L138 BoogieDeclarations]: Found implementation of procedure _debug_dump_mf___1 [2021-11-20 06:05:29,221 INFO L130 BoogieDeclarations]: Found specification of procedure attribute_container_find_class_device [2021-11-20 06:05:29,222 INFO L138 BoogieDeclarations]: Found implementation of procedure attribute_container_find_class_device [2021-11-20 06:05:29,222 INFO L130 BoogieDeclarations]: Found specification of procedure _debug_dump_mf___3 [2021-11-20 06:05:29,222 INFO L138 BoogieDeclarations]: Found implementation of procedure _debug_dump_mf___3 [2021-11-20 06:05:29,222 INFO L130 BoogieDeclarations]: Found specification of procedure _debug_dump_mf___2 [2021-11-20 06:05:29,222 INFO L138 BoogieDeclarations]: Found implementation of procedure _debug_dump_mf___2 [2021-11-20 06:05:29,222 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_base_get_sense_buffer_dma [2021-11-20 06:05:29,223 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_base_get_sense_buffer_dma [2021-11-20 06:05:29,223 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_base_put_smid_default [2021-11-20 06:05:29,223 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_base_put_smid_default [2021-11-20 06:05:29,223 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_base_start_watchdog [2021-11-20 06:05:29,223 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_base_start_watchdog [2021-11-20 06:05:29,223 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_sas_host_add [2021-11-20 06:05:29,224 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_sas_host_add [2021-11-20 06:05:29,224 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2021-11-20 06:05:29,224 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2021-11-20 06:05:29,224 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2021-11-20 06:05:29,224 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2021-11-20 06:05:29,224 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_remove_host [2021-11-20 06:05:29,225 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_remove_host [2021-11-20 06:05:29,225 INFO L130 BoogieDeclarations]: Found specification of procedure __scsi_iterate_devices [2021-11-20 06:05:29,225 INFO L138 BoogieDeclarations]: Found implementation of procedure __scsi_iterate_devices [2021-11-20 06:05:29,225 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-20 06:05:29,225 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-20 06:05:29,225 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-20 06:05:29,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-20 06:05:29,226 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_ublock_io_all_device [2021-11-20 06:05:29,226 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_ublock_io_all_device [2021-11-20 06:05:29,226 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_sas_broadcast_primitive_event [2021-11-20 06:05:29,226 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_sas_broadcast_primitive_event [2021-11-20 06:05:29,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-20 06:05:29,227 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-20 06:05:29,227 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_base_get_smid [2021-11-20 06:05:29,227 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_base_get_smid [2021-11-20 06:05:29,227 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2021-11-20 06:05:29,227 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2021-11-20 06:05:29,227 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-20 06:05:29,228 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-20 06:05:29,228 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-11-20 06:05:29,228 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-11-20 06:05:29,228 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_fw_event_free [2021-11-20 06:05:29,228 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_fw_event_free [2021-11-20 06:05:29,228 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_mark_responding_raid_device [2021-11-20 06:05:29,229 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_mark_responding_raid_device [2021-11-20 06:05:29,229 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_is_end_device [2021-11-20 06:05:29,229 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_is_end_device [2021-11-20 06:05:29,229 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_determine_boot_device [2021-11-20 06:05:29,229 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_determine_boot_device [2021-11-20 06:05:29,229 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-11-20 06:05:29,230 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-11-20 06:05:29,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 06:05:29,230 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-20 06:05:29,230 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-20 06:05:29,230 INFO L130 BoogieDeclarations]: Found specification of procedure _config_display_some_debug [2021-11-20 06:05:29,230 INFO L138 BoogieDeclarations]: Found implementation of procedure _config_display_some_debug [2021-11-20 06:05:29,230 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_config_get_phy_pg0 [2021-11-20 06:05:29,231 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_config_get_phy_pg0 [2021-11-20 06:05:29,231 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_base_stop_watchdog [2021-11-20 06:05:29,231 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_base_stop_watchdog [2021-11-20 06:05:29,231 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 06:05:29,231 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_sas_ir_physical_disk_event [2021-11-20 06:05:29,231 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_sas_ir_physical_disk_event [2021-11-20 06:05:29,232 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2021-11-20 06:05:29,232 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2021-11-20 06:05:29,232 INFO L130 BoogieDeclarations]: Found specification of procedure starget_for_each_device [2021-11-20 06:05:29,232 INFO L138 BoogieDeclarations]: Found implementation of procedure starget_for_each_device [2021-11-20 06:05:29,232 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2021-11-20 06:05:29,232 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2021-11-20 06:05:29,233 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_halt_firmware [2021-11-20 06:05:29,233 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_halt_firmware [2021-11-20 06:05:29,233 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_sas_device_remove [2021-11-20 06:05:29,233 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_sas_device_remove [2021-11-20 06:05:29,233 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_base_get_msg_frame [2021-11-20 06:05:29,233 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_base_get_msg_frame [2021-11-20 06:05:29,234 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_sas_ir_volume_event [2021-11-20 06:05:29,234 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_sas_ir_volume_event [2021-11-20 06:05:29,234 INFO L130 BoogieDeclarations]: Found specification of procedure _base_static_config_pages [2021-11-20 06:05:29,234 INFO L138 BoogieDeclarations]: Found implementation of procedure _base_static_config_pages [2021-11-20 06:05:29,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-20 06:05:29,234 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_add_device [2021-11-20 06:05:29,235 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_add_device [2021-11-20 06:05:29,235 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-11-20 06:05:29,235 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-11-20 06:05:29,235 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2021-11-20 06:05:29,235 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-20 06:05:29,235 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-20 06:05:29,236 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-11-20 06:05:29,236 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-11-20 06:05:29,236 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_expander_node_remove [2021-11-20 06:05:29,236 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_expander_node_remove [2021-11-20 06:05:29,236 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_config_get_bios_pg3 [2021-11-20 06:05:29,236 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_config_get_bios_pg3 [2021-11-20 06:05:29,237 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_search_responding_raid_devices [2021-11-20 06:05:29,237 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_search_responding_raid_devices [2021-11-20 06:05:29,237 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_config_get_bios_pg2 [2021-11-20 06:05:29,237 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_config_get_bios_pg2 [2021-11-20 06:05:29,237 INFO L130 BoogieDeclarations]: Found specification of procedure _base_mask_interrupts [2021-11-20 06:05:29,237 INFO L138 BoogieDeclarations]: Found implementation of procedure _base_mask_interrupts [2021-11-20 06:05:29,238 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_remove [2021-11-20 06:05:29,238 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_remove [2021-11-20 06:05:29,238 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_scan_for_devices_after_reset [2021-11-20 06:05:29,238 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_scan_for_devices_after_reset [2021-11-20 06:05:29,238 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-20 06:05:29,238 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-20 06:05:29,239 INFO L130 BoogieDeclarations]: Found specification of procedure _transport_expander_report_manufacture [2021-11-20 06:05:29,239 INFO L138 BoogieDeclarations]: Found implementation of procedure _transport_expander_report_manufacture [2021-11-20 06:05:29,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2021-11-20 06:05:29,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2021-11-20 06:05:29,239 INFO L130 BoogieDeclarations]: Found specification of procedure free_pages [2021-11-20 06:05:29,239 INFO L138 BoogieDeclarations]: Found implementation of procedure free_pages [2021-11-20 06:05:29,240 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_flush_running_cmds [2021-11-20 06:05:29,240 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_flush_running_cmds [2021-11-20 06:05:29,240 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_config_get_enclosure_pg0 [2021-11-20 06:05:29,240 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_config_get_enclosure_pg0 [2021-11-20 06:05:29,240 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_dma_unmap [2021-11-20 06:05:29,240 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_dma_unmap [2021-11-20 06:05:29,241 INFO L130 BoogieDeclarations]: Found specification of procedure find_first_bit [2021-11-20 06:05:29,241 INFO L138 BoogieDeclarations]: Found implementation of procedure find_first_bit [2021-11-20 06:05:29,241 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_scsih_set_tm_flag [2021-11-20 06:05:29,241 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_scsih_set_tm_flag [2021-11-20 06:05:29,241 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_search_responding_sas_devices [2021-11-20 06:05:29,241 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_search_responding_sas_devices [2021-11-20 06:05:29,242 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_config_get_sas_device_pg0 [2021-11-20 06:05:29,242 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_config_get_sas_device_pg0 [2021-11-20 06:05:29,242 INFO L130 BoogieDeclarations]: Found specification of procedure _base_is_controller_msix_enabled [2021-11-20 06:05:29,242 INFO L138 BoogieDeclarations]: Found implementation of procedure _base_is_controller_msix_enabled [2021-11-20 06:05:29,242 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-20 06:05:29,242 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-20 06:05:29,243 INFO L130 BoogieDeclarations]: Found specification of procedure _base_fault_reset_work [2021-11-20 06:05:29,243 INFO L138 BoogieDeclarations]: Found implementation of procedure _base_fault_reset_work [2021-11-20 06:05:29,243 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-11-20 06:05:29,243 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-11-20 06:05:29,243 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_internal_device_block [2021-11-20 06:05:29,243 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_internal_device_block [2021-11-20 06:05:29,243 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_sas_device_find_by_handle [2021-11-20 06:05:29,244 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_sas_device_find_by_handle [2021-11-20 06:05:29,244 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_fw_event_add [2021-11-20 06:05:29,244 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_fw_event_add [2021-11-20 06:05:29,244 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_base_free_smid [2021-11-20 06:05:29,244 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_base_free_smid [2021-11-20 06:05:29,244 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_scsih_issue_tm [2021-11-20 06:05:29,245 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_scsih_issue_tm [2021-11-20 06:05:29,245 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_refresh_expander_links [2021-11-20 06:05:29,245 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_refresh_expander_links [2021-11-20 06:05:29,245 INFO L130 BoogieDeclarations]: Found specification of procedure sas_port_delete_phy [2021-11-20 06:05:29,245 INFO L138 BoogieDeclarations]: Found implementation of procedure sas_port_delete_phy [2021-11-20 06:05:29,245 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_base_get_iocstate [2021-11-20 06:05:29,246 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_base_get_iocstate [2021-11-20 06:05:29,246 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-20 06:05:29,246 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-20 06:05:29,246 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2021-11-20 06:05:29,246 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2021-11-20 06:05:29,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 06:05:29,246 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_scsih_expander_find_by_sas_address [2021-11-20 06:05:29,247 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_scsih_expander_find_by_sas_address [2021-11-20 06:05:29,247 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_base_put_smid_hi_priority [2021-11-20 06:05:29,247 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_base_put_smid_hi_priority [2021-11-20 06:05:29,247 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-20 06:05:29,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-20 06:05:29,247 INFO L130 BoogieDeclarations]: Found specification of procedure _base_wait_on_iocstate [2021-11-20 06:05:29,248 INFO L138 BoogieDeclarations]: Found implementation of procedure _base_wait_on_iocstate [2021-11-20 06:05:29,248 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_sas_volume_delete [2021-11-20 06:05:29,248 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_sas_volume_delete [2021-11-20 06:05:29,248 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_target_destroy [2021-11-20 06:05:29,248 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_target_destroy [2021-11-20 06:05:29,248 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_fw_event_cleanup_queue [2021-11-20 06:05:29,248 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_fw_event_cleanup_queue [2021-11-20 06:05:29,249 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_pci_resume [2021-11-20 06:05:29,249 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_pci_resume [2021-11-20 06:05:29,249 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_sas_volume_add [2021-11-20 06:05:29,249 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_sas_volume_add [2021-11-20 06:05:29,249 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_unblock_requests [2021-11-20 06:05:29,249 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_unblock_requests [2021-11-20 06:05:29,249 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-11-20 06:05:29,250 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-11-20 06:05:29,250 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_config_get_raid_volume_pg0 [2021-11-20 06:05:29,250 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_config_get_raid_volume_pg0 [2021-11-20 06:05:29,250 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_config_get_raid_volume_pg1 [2021-11-20 06:05:29,250 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_config_get_raid_volume_pg1 [2021-11-20 06:05:29,250 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_next [2021-11-20 06:05:29,251 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_next [2021-11-20 06:05:29,251 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_base_put_smid_scsi_io [2021-11-20 06:05:29,251 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_base_put_smid_scsi_io [2021-11-20 06:05:29,251 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_scsih_clear_tm_flag [2021-11-20 06:05:29,251 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_scsih_clear_tm_flag [2021-11-20 06:05:29,251 INFO L130 BoogieDeclarations]: Found specification of procedure sas_port_add_phy [2021-11-20 06:05:29,251 INFO L138 BoogieDeclarations]: Found implementation of procedure sas_port_add_phy [2021-11-20 06:05:29,252 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_shost [2021-11-20 06:05:29,252 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_shost [2021-11-20 06:05:29,252 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_config_get_phys_disk_pg0 [2021-11-20 06:05:29,252 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_config_get_phys_disk_pg0 [2021-11-20 06:05:29,252 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_config_get_iounit_pg1 [2021-11-20 06:05:29,252 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_config_get_iounit_pg1 [2021-11-20 06:05:29,252 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-11-20 06:05:29,253 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-11-20 06:05:29,253 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_config_get_ioc_pg8 [2021-11-20 06:05:29,253 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_config_get_ioc_pg8 [2021-11-20 06:05:29,253 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_config_get_iounit_pg0 [2021-11-20 06:05:29,253 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_config_get_iounit_pg0 [2021-11-20 06:05:29,253 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-20 06:05:29,254 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-20 06:05:29,254 INFO L130 BoogieDeclarations]: Found specification of procedure _transport_sas_node_find_by_sas_address [2021-11-20 06:05:29,254 INFO L138 BoogieDeclarations]: Found implementation of procedure _transport_sas_node_find_by_sas_address [2021-11-20 06:05:29,254 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-11-20 06:05:29,254 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-11-20 06:05:29,254 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2021-11-20 06:05:29,254 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2021-11-20 06:05:29,255 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-20 06:05:29,255 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-20 06:05:29,255 INFO L130 BoogieDeclarations]: Found specification of procedure mpt2sas_scsih_expander_find_by_handle [2021-11-20 06:05:29,255 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt2sas_scsih_expander_find_by_handle [2021-11-20 06:05:29,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 06:05:29,255 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_expander_add [2021-11-20 06:05:29,256 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_expander_add [2021-11-20 06:05:29,256 INFO L130 BoogieDeclarations]: Found specification of procedure _scsih_response_code [2021-11-20 06:05:29,256 INFO L138 BoogieDeclarations]: Found implementation of procedure _scsih_response_code [2021-11-20 06:05:29,256 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-20 06:05:29,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-20 06:05:29,256 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-20 06:05:29,256 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_free [2021-11-20 06:05:29,257 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_free [2021-11-20 06:05:30,764 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 06:05:30,770 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 06:05:51,632 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 06:05:51,690 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 06:05:51,690 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-20 06:05:51,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:05:51 BoogieIcfgContainer [2021-11-20 06:05:51,699 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 06:05:51,703 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 06:05:51,703 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 06:05:51,707 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 06:05:51,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:05:16" (1/3) ... [2021-11-20 06:05:51,709 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@610f6f7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:05:51, skipping insertion in model container [2021-11-20 06:05:51,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:05:27" (2/3) ... [2021-11-20 06:05:51,710 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@610f6f7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:05:51, skipping insertion in model container [2021-11-20 06:05:51,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:05:51" (3/3) ... [2021-11-20 06:05:51,711 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.8-rc1-32_7a-drivers--scsi--mpt2sas--mpt2sas.ko-ldv_main4_sequence_infinite_withcheck_stateful.cil.out.i [2021-11-20 06:05:51,717 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 06:05:51,717 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 06:05:51,798 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 06:05:51,805 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 06:05:51,806 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 06:05:51,912 INFO L276 IsEmpty]: Start isEmpty. Operand has 5131 states, 3662 states have (on average 1.4120699071545604) internal successors, (5171), 3790 states have internal predecessors, (5171), 1223 states have call successors, (1223), 245 states have call predecessors, (1223), 245 states have return successors, (1223), 1177 states have call predecessors, (1223), 1223 states have call successors, (1223) [2021-11-20 06:05:51,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-20 06:05:51,916 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:05:51,917 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:05:51,917 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:05:51,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:05:51,922 INFO L85 PathProgramCache]: Analyzing trace with hash -577367309, now seen corresponding path program 1 times [2021-11-20 06:05:51,931 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:05:51,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689508127] [2021-11-20 06:05:51,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:05:51,933 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:05:52,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:05:52,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:05:52,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:05:52,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:05:52,932 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:05:52,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689508127] [2021-11-20 06:05:52,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689508127] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:05:52,933 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:05:52,933 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 06:05:52,935 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433492554] [2021-11-20 06:05:52,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:05:52,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:05:52,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:05:52,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:05:52,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:05:52,982 INFO L87 Difference]: Start difference. First operand has 5131 states, 3662 states have (on average 1.4120699071545604) internal successors, (5171), 3790 states have internal predecessors, (5171), 1223 states have call successors, (1223), 245 states have call predecessors, (1223), 245 states have return successors, (1223), 1177 states have call predecessors, (1223), 1223 states have call successors, (1223) Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 06:06:07,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:06:07,711 INFO L93 Difference]: Finished difference Result 11331 states and 17346 transitions. [2021-11-20 06:06:07,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 06:06:07,714 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2021-11-20 06:06:07,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:06:07,799 INFO L225 Difference]: With dead ends: 11331 [2021-11-20 06:06:07,799 INFO L226 Difference]: Without dead ends: 6194 [2021-11-20 06:06:07,860 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:06:07,865 INFO L933 BasicCegarLoop]: 6611 mSDtfsCounter, 10866 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 4450 mSolverCounterSat, 4023 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11332 SdHoareTripleChecker+Valid, 6655 SdHoareTripleChecker+Invalid, 8473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4023 IncrementalHoareTripleChecker+Valid, 4450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.6s IncrementalHoareTripleChecker+Time [2021-11-20 06:06:07,867 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11332 Valid, 6655 Invalid, 8473 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4023 Valid, 4450 Invalid, 0 Unknown, 0 Unchecked, 13.6s Time] [2021-11-20 06:06:07,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6194 states. [2021-11-20 06:06:08,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6194 to 5115. [2021-11-20 06:06:08,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5115 states, 3650 states have (on average 1.4106849315068493) internal successors, (5149), 3774 states have internal predecessors, (5149), 1221 states have call successors, (1221), 245 states have call predecessors, (1221), 243 states have return successors, (1211), 1165 states have call predecessors, (1211), 1211 states have call successors, (1211) [2021-11-20 06:06:08,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5115 states to 5115 states and 7581 transitions. [2021-11-20 06:06:08,399 INFO L78 Accepts]: Start accepts. Automaton has 5115 states and 7581 transitions. Word has length 12 [2021-11-20 06:06:08,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:06:08,400 INFO L470 AbstractCegarLoop]: Abstraction has 5115 states and 7581 transitions. [2021-11-20 06:06:08,401 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 06:06:08,401 INFO L276 IsEmpty]: Start isEmpty. Operand 5115 states and 7581 transitions. [2021-11-20 06:06:08,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-20 06:06:08,402 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:06:08,402 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:06:08,402 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 06:06:08,403 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:06:08,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:06:08,406 INFO L85 PathProgramCache]: Analyzing trace with hash -720699983, now seen corresponding path program 1 times [2021-11-20 06:06:08,406 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:06:08,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527244323] [2021-11-20 06:06:08,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:06:08,407 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:06:08,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:06:08,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:06:08,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:06:08,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:06:08,995 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:06:08,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527244323] [2021-11-20 06:06:09,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527244323] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:06:09,000 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:06:09,000 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 06:06:09,001 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009914169] [2021-11-20 06:06:09,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:06:09,002 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:06:09,003 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:06:09,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:06:09,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:06:09,005 INFO L87 Difference]: Start difference. First operand 5115 states and 7581 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 06:06:34,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:06:34,139 INFO L93 Difference]: Finished difference Result 14792 states and 22431 transitions. [2021-11-20 06:06:34,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 06:06:34,139 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2021-11-20 06:06:34,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:06:34,222 INFO L225 Difference]: With dead ends: 14792 [2021-11-20 06:06:34,222 INFO L226 Difference]: Without dead ends: 9683 [2021-11-20 06:06:34,266 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:06:34,268 INFO L933 BasicCegarLoop]: 8584 mSDtfsCounter, 11948 mSDsluCounter, 1035 mSDsCounter, 0 mSdLazyCounter, 10070 mSolverCounterSat, 4617 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12854 SdHoareTripleChecker+Valid, 9619 SdHoareTripleChecker+Invalid, 14687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4617 IncrementalHoareTripleChecker+Valid, 10070 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.1s IncrementalHoareTripleChecker+Time [2021-11-20 06:06:34,268 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12854 Valid, 9619 Invalid, 14687 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4617 Valid, 10070 Invalid, 0 Unknown, 0 Unchecked, 24.1s Time] [2021-11-20 06:06:34,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9683 states. [2021-11-20 06:06:34,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9683 to 9205. [2021-11-20 06:06:34,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9205 states, 6588 states have (on average 1.410595021250759) internal successors, (9293), 6858 states have internal predecessors, (9293), 2158 states have call successors, (2158), 448 states have call predecessors, (2158), 458 states have return successors, (2314), 2040 states have call predecessors, (2314), 2141 states have call successors, (2314) [2021-11-20 06:06:34,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9205 states to 9205 states and 13765 transitions. [2021-11-20 06:06:34,865 INFO L78 Accepts]: Start accepts. Automaton has 9205 states and 13765 transitions. Word has length 13 [2021-11-20 06:06:34,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:06:34,866 INFO L470 AbstractCegarLoop]: Abstraction has 9205 states and 13765 transitions. [2021-11-20 06:06:34,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 06:06:34,867 INFO L276 IsEmpty]: Start isEmpty. Operand 9205 states and 13765 transitions. [2021-11-20 06:06:34,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-20 06:06:34,868 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:06:34,869 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:06:34,869 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 06:06:34,869 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:06:34,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:06:34,870 INFO L85 PathProgramCache]: Analyzing trace with hash -869040714, now seen corresponding path program 1 times [2021-11-20 06:06:34,870 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:06:34,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892111445] [2021-11-20 06:06:34,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:06:34,871 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:06:35,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:06:35,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:06:35,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:06:35,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:06:35,413 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:06:35,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892111445] [2021-11-20 06:06:35,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892111445] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:06:35,418 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:06:35,418 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 06:06:35,418 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563571854] [2021-11-20 06:06:35,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:06:35,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:06:35,422 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:06:35,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:06:35,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:06:35,423 INFO L87 Difference]: Start difference. First operand 9205 states and 13765 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 06:06:48,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:06:48,078 INFO L93 Difference]: Finished difference Result 9802 states and 14709 transitions. [2021-11-20 06:06:48,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 06:06:48,083 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2021-11-20 06:06:48,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:06:48,160 INFO L225 Difference]: With dead ends: 9802 [2021-11-20 06:06:48,160 INFO L226 Difference]: Without dead ends: 9799 [2021-11-20 06:06:48,166 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:06:48,167 INFO L933 BasicCegarLoop]: 6495 mSDtfsCounter, 10922 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 4440 mSolverCounterSat, 4050 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11387 SdHoareTripleChecker+Valid, 6536 SdHoareTripleChecker+Invalid, 8490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4050 IncrementalHoareTripleChecker+Valid, 4440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2021-11-20 06:06:48,168 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11387 Valid, 6536 Invalid, 8490 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4050 Valid, 4440 Invalid, 0 Unknown, 0 Unchecked, 12.2s Time] [2021-11-20 06:06:48,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9799 states. [2021-11-20 06:06:48,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9799 to 9204. [2021-11-20 06:06:48,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9204 states, 6588 states have (on average 1.4104432301153613) internal successors, (9292), 6857 states have internal predecessors, (9292), 2157 states have call successors, (2157), 448 states have call predecessors, (2157), 458 states have return successors, (2314), 2040 states have call predecessors, (2314), 2141 states have call successors, (2314) [2021-11-20 06:06:48,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9204 states to 9204 states and 13763 transitions. [2021-11-20 06:06:48,724 INFO L78 Accepts]: Start accepts. Automaton has 9204 states and 13763 transitions. Word has length 14 [2021-11-20 06:06:48,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:06:48,724 INFO L470 AbstractCegarLoop]: Abstraction has 9204 states and 13763 transitions. [2021-11-20 06:06:48,724 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 06:06:48,725 INFO L276 IsEmpty]: Start isEmpty. Operand 9204 states and 13763 transitions. [2021-11-20 06:06:48,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-20 06:06:48,726 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:06:48,726 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:06:48,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 06:06:48,726 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:06:48,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:06:48,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1172631212, now seen corresponding path program 1 times [2021-11-20 06:06:48,727 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:06:48,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548512187] [2021-11-20 06:06:48,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:06:48,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:06:48,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:06:49,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:06:49,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:06:49,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:06:49,260 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:06:49,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548512187] [2021-11-20 06:06:49,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548512187] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:06:49,260 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:06:49,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 06:06:49,261 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651615459] [2021-11-20 06:06:49,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:06:49,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:06:49,261 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:06:49,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:06:49,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:06:49,262 INFO L87 Difference]: Start difference. First operand 9204 states and 13763 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 06:07:17,220 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:07:20,887 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:07:25,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:07:25,274 INFO L93 Difference]: Finished difference Result 28579 states and 44337 transitions. [2021-11-20 06:07:25,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 06:07:25,275 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2021-11-20 06:07:25,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:07:25,390 INFO L225 Difference]: With dead ends: 28579 [2021-11-20 06:07:25,391 INFO L226 Difference]: Without dead ends: 19376 [2021-11-20 06:07:25,456 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:07:25,463 INFO L933 BasicCegarLoop]: 12038 mSDtfsCounter, 12337 mSDsluCounter, 2581 mSDsCounter, 0 mSdLazyCounter, 13637 mSolverCounterSat, 4516 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13513 SdHoareTripleChecker+Valid, 14619 SdHoareTripleChecker+Invalid, 18155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4516 IncrementalHoareTripleChecker+Valid, 13637 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.8s IncrementalHoareTripleChecker+Time [2021-11-20 06:07:25,465 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13513 Valid, 14619 Invalid, 18155 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4516 Valid, 13637 Invalid, 2 Unknown, 0 Unchecked, 34.8s Time] [2021-11-20 06:07:25,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19376 states. [2021-11-20 06:07:26,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19376 to 18736. [2021-11-20 06:07:26,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18736 states, 13394 states have (on average 1.4099596834403465) internal successors, (18885), 13962 states have internal predecessors, (18885), 4400 states have call successors, (4400), 891 states have call predecessors, (4400), 941 states have return successors, (5492), 4175 states have call predecessors, (5492), 4383 states have call successors, (5492) [2021-11-20 06:07:26,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18736 states to 18736 states and 28777 transitions. [2021-11-20 06:07:26,852 INFO L78 Accepts]: Start accepts. Automaton has 18736 states and 28777 transitions. Word has length 15 [2021-11-20 06:07:26,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:07:26,853 INFO L470 AbstractCegarLoop]: Abstraction has 18736 states and 28777 transitions. [2021-11-20 06:07:26,854 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 06:07:26,854 INFO L276 IsEmpty]: Start isEmpty. Operand 18736 states and 28777 transitions. [2021-11-20 06:07:26,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-20 06:07:26,865 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:07:26,865 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:07:26,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 06:07:26,866 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:07:26,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:07:26,866 INFO L85 PathProgramCache]: Analyzing trace with hash 675559875, now seen corresponding path program 1 times [2021-11-20 06:07:26,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:07:26,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924889182] [2021-11-20 06:07:26,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:07:26,867 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:07:27,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:27,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:07:27,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:27,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-11-20 06:07:27,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:27,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 06:07:27,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:27,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:07:27,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:27,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-20 06:07:27,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:27,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 06:07:27,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:27,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-11-20 06:07:27,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:27,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:07:27,565 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:07:27,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924889182] [2021-11-20 06:07:27,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924889182] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:07:27,565 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:07:27,565 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 06:07:27,566 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703760694] [2021-11-20 06:07:27,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:07:27,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:07:27,567 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:07:27,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:07:27,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:07:27,568 INFO L87 Difference]: Start difference. First operand 18736 states and 28777 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-20 06:07:46,842 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:07:49,031 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:07:51,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:07:51,360 INFO L93 Difference]: Finished difference Result 38026 states and 58548 transitions. [2021-11-20 06:07:51,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 06:07:51,361 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 69 [2021-11-20 06:07:51,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:07:51,468 INFO L225 Difference]: With dead ends: 38026 [2021-11-20 06:07:51,468 INFO L226 Difference]: Without dead ends: 19296 [2021-11-20 06:07:51,565 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:07:51,566 INFO L933 BasicCegarLoop]: 7102 mSDtfsCounter, 3886 mSDsluCounter, 3346 mSDsCounter, 0 mSdLazyCounter, 8563 mSolverCounterSat, 1501 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4669 SdHoareTripleChecker+Valid, 10448 SdHoareTripleChecker+Invalid, 10065 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1501 IncrementalHoareTripleChecker+Valid, 8563 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.6s IncrementalHoareTripleChecker+Time [2021-11-20 06:07:51,566 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4669 Valid, 10448 Invalid, 10065 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1501 Valid, 8563 Invalid, 1 Unknown, 0 Unchecked, 22.6s Time] [2021-11-20 06:07:51,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19296 states. [2021-11-20 06:07:52,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19296 to 18740. [2021-11-20 06:07:52,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18740 states, 13398 states have (on average 1.409837289147634) internal successors, (18889), 13966 states have internal predecessors, (18889), 4400 states have call successors, (4400), 891 states have call predecessors, (4400), 941 states have return successors, (5492), 4175 states have call predecessors, (5492), 4383 states have call successors, (5492) [2021-11-20 06:07:52,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18740 states to 18740 states and 28781 transitions. [2021-11-20 06:07:52,991 INFO L78 Accepts]: Start accepts. Automaton has 18740 states and 28781 transitions. Word has length 69 [2021-11-20 06:07:52,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:07:52,992 INFO L470 AbstractCegarLoop]: Abstraction has 18740 states and 28781 transitions. [2021-11-20 06:07:52,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-20 06:07:52,992 INFO L276 IsEmpty]: Start isEmpty. Operand 18740 states and 28781 transitions. [2021-11-20 06:07:52,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-20 06:07:52,996 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:07:52,996 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:07:52,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 06:07:52,996 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:07:52,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:07:52,997 INFO L85 PathProgramCache]: Analyzing trace with hash 1334712092, now seen corresponding path program 1 times [2021-11-20 06:07:52,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:07:52,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590630220] [2021-11-20 06:07:52,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:07:52,998 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:07:53,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:53,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:07:53,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:53,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 06:07:53,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:53,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-20 06:07:53,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:53,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:07:53,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:53,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-20 06:07:53,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:53,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 06:07:53,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:53,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-20 06:07:53,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:53,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:07:53,569 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:07:53,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590630220] [2021-11-20 06:07:53,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590630220] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:07:53,570 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:07:53,570 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 06:07:53,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163409217] [2021-11-20 06:07:53,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:07:53,571 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:07:53,571 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:07:53,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:07:53,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:07:53,572 INFO L87 Difference]: Start difference. First operand 18740 states and 28781 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-20 06:08:14,342 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:08:16,255 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:08:18,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:08:18,367 INFO L93 Difference]: Finished difference Result 38034 states and 58552 transitions. [2021-11-20 06:08:18,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 06:08:18,367 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 66 [2021-11-20 06:08:18,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:08:18,464 INFO L225 Difference]: With dead ends: 38034 [2021-11-20 06:08:18,465 INFO L226 Difference]: Without dead ends: 19300 [2021-11-20 06:08:18,552 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:08:18,553 INFO L933 BasicCegarLoop]: 7131 mSDtfsCounter, 3886 mSDsluCounter, 3376 mSDsCounter, 0 mSdLazyCounter, 8563 mSolverCounterSat, 1497 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4669 SdHoareTripleChecker+Valid, 10507 SdHoareTripleChecker+Invalid, 10061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1497 IncrementalHoareTripleChecker+Valid, 8563 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.5s IncrementalHoareTripleChecker+Time [2021-11-20 06:08:18,553 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4669 Valid, 10507 Invalid, 10061 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1497 Valid, 8563 Invalid, 1 Unknown, 0 Unchecked, 23.5s Time] [2021-11-20 06:08:18,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19300 states. [2021-11-20 06:08:19,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19300 to 18744. [2021-11-20 06:08:19,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18744 states, 13402 states have (on average 1.4097149679152365) internal successors, (18893), 13970 states have internal predecessors, (18893), 4400 states have call successors, (4400), 891 states have call predecessors, (4400), 941 states have return successors, (5492), 4175 states have call predecessors, (5492), 4383 states have call successors, (5492) [2021-11-20 06:08:19,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18744 states to 18744 states and 28785 transitions. [2021-11-20 06:08:19,895 INFO L78 Accepts]: Start accepts. Automaton has 18744 states and 28785 transitions. Word has length 66 [2021-11-20 06:08:19,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:08:19,895 INFO L470 AbstractCegarLoop]: Abstraction has 18744 states and 28785 transitions. [2021-11-20 06:08:19,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-20 06:08:19,896 INFO L276 IsEmpty]: Start isEmpty. Operand 18744 states and 28785 transitions. [2021-11-20 06:08:19,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-20 06:08:19,897 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:08:19,897 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:08:19,897 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-20 06:08:19,897 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:08:19,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:08:19,898 INFO L85 PathProgramCache]: Analyzing trace with hash -470726242, now seen corresponding path program 1 times [2021-11-20 06:08:19,898 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:08:19,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904349305] [2021-11-20 06:08:19,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:08:19,899 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:08:20,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:20,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:08:20,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:20,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 06:08:20,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:20,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-20 06:08:20,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:20,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:08:20,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:20,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-20 06:08:20,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:20,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 06:08:20,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:20,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-20 06:08:20,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:20,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:08:20,454 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:08:20,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904349305] [2021-11-20 06:08:20,455 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904349305] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:08:20,455 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:08:20,455 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 06:08:20,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143773039] [2021-11-20 06:08:20,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:08:20,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 06:08:20,456 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:08:20,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 06:08:20,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:08:20,457 INFO L87 Difference]: Start difference. First operand 18744 states and 28785 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-20 06:08:39,375 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:08:48,256 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:08:50,283 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:08:53,330 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:08:55,340 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:08:58,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:08:58,301 INFO L93 Difference]: Finished difference Result 38050 states and 58572 transitions. [2021-11-20 06:08:58,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 06:08:58,302 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 66 [2021-11-20 06:08:58,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:08:58,365 INFO L225 Difference]: With dead ends: 38050 [2021-11-20 06:08:58,365 INFO L226 Difference]: Without dead ends: 19312 [2021-11-20 06:08:58,427 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-20 06:08:58,428 INFO L933 BasicCegarLoop]: 7126 mSDtfsCounter, 3891 mSDsluCounter, 6627 mSDsCounter, 0 mSdLazyCounter, 13297 mSolverCounterSat, 1501 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4674 SdHoareTripleChecker+Valid, 13753 SdHoareTripleChecker+Invalid, 14803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1501 IncrementalHoareTripleChecker+Valid, 13297 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.5s IncrementalHoareTripleChecker+Time [2021-11-20 06:08:58,428 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4674 Valid, 13753 Invalid, 14803 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1501 Valid, 13297 Invalid, 5 Unknown, 0 Unchecked, 36.5s Time] [2021-11-20 06:08:58,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19312 states. [2021-11-20 06:08:59,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19312 to 18752. [2021-11-20 06:08:59,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18752 states, 13410 states have (on average 1.4094705443698732) internal successors, (18901), 13978 states have internal predecessors, (18901), 4400 states have call successors, (4400), 891 states have call predecessors, (4400), 941 states have return successors, (5492), 4175 states have call predecessors, (5492), 4383 states have call successors, (5492) [2021-11-20 06:08:59,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18752 states to 18752 states and 28793 transitions. [2021-11-20 06:08:59,768 INFO L78 Accepts]: Start accepts. Automaton has 18752 states and 28793 transitions. Word has length 66 [2021-11-20 06:08:59,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:08:59,769 INFO L470 AbstractCegarLoop]: Abstraction has 18752 states and 28793 transitions. [2021-11-20 06:08:59,769 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-20 06:08:59,769 INFO L276 IsEmpty]: Start isEmpty. Operand 18752 states and 28793 transitions. [2021-11-20 06:08:59,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-20 06:08:59,771 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:08:59,772 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:08:59,774 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-20 06:08:59,774 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:08:59,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:08:59,775 INFO L85 PathProgramCache]: Analyzing trace with hash -330177632, now seen corresponding path program 1 times [2021-11-20 06:08:59,775 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:08:59,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665839411] [2021-11-20 06:08:59,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:08:59,775 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:08:59,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:00,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:09:00,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:00,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 06:09:00,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:00,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-20 06:09:00,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:00,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:09:00,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:00,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-20 06:09:00,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:00,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 06:09:00,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:00,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-20 06:09:00,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:00,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:09:00,315 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:09:00,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665839411] [2021-11-20 06:09:00,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665839411] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:09:00,316 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:09:00,316 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 06:09:00,316 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564601136] [2021-11-20 06:09:00,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:09:00,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 06:09:00,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:09:00,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 06:09:00,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:09:00,319 INFO L87 Difference]: Start difference. First operand 18752 states and 28793 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-20 06:09:27,523 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:09:29,542 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:09:32,768 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:09:34,780 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:09:38,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:09:38,047 INFO L93 Difference]: Finished difference Result 38074 states and 58600 transitions. [2021-11-20 06:09:38,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 06:09:38,048 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 66 [2021-11-20 06:09:38,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:09:38,109 INFO L225 Difference]: With dead ends: 38074 [2021-11-20 06:09:38,109 INFO L226 Difference]: Without dead ends: 19328 [2021-11-20 06:09:38,169 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-20 06:09:38,170 INFO L933 BasicCegarLoop]: 7094 mSDtfsCounter, 3892 mSDsluCounter, 6559 mSDsCounter, 0 mSdLazyCounter, 13301 mSolverCounterSat, 1505 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4675 SdHoareTripleChecker+Valid, 13653 SdHoareTripleChecker+Invalid, 14810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1505 IncrementalHoareTripleChecker+Valid, 13301 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.4s IncrementalHoareTripleChecker+Time [2021-11-20 06:09:38,170 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4675 Valid, 13653 Invalid, 14810 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1505 Valid, 13301 Invalid, 4 Unknown, 0 Unchecked, 36.4s Time] [2021-11-20 06:09:38,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19328 states. [2021-11-20 06:09:39,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19328 to 18766. [2021-11-20 06:09:39,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18766 states, 13422 states have (on average 1.4091044553717778) internal successors, (18913), 13992 states have internal predecessors, (18913), 4400 states have call successors, (4400), 891 states have call predecessors, (4400), 943 states have return successors, (5496), 4175 states have call predecessors, (5496), 4383 states have call successors, (5496) [2021-11-20 06:09:39,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18766 states to 18766 states and 28809 transitions. [2021-11-20 06:09:39,315 INFO L78 Accepts]: Start accepts. Automaton has 18766 states and 28809 transitions. Word has length 66 [2021-11-20 06:09:39,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:09:39,315 INFO L470 AbstractCegarLoop]: Abstraction has 18766 states and 28809 transitions. [2021-11-20 06:09:39,315 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-20 06:09:39,316 INFO L276 IsEmpty]: Start isEmpty. Operand 18766 states and 28809 transitions. [2021-11-20 06:09:39,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-20 06:09:39,317 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:09:39,317 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:09:39,317 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-20 06:09:39,318 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:09:39,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:09:39,318 INFO L85 PathProgramCache]: Analyzing trace with hash -184270365, now seen corresponding path program 1 times [2021-11-20 06:09:39,318 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:09:39,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75431696] [2021-11-20 06:09:39,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:09:39,319 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:09:39,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:39,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:09:39,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:39,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 06:09:39,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:39,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-20 06:09:39,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:39,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:09:39,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:39,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-20 06:09:39,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:39,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 06:09:39,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:39,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-11-20 06:09:39,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:39,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:09:39,920 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:09:39,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75431696] [2021-11-20 06:09:39,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75431696] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:09:39,920 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:09:39,920 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 06:09:39,920 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641504567] [2021-11-20 06:09:39,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:09:39,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 06:09:39,922 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:09:39,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 06:09:39,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 06:09:39,923 INFO L87 Difference]: Start difference. First operand 18766 states and 28809 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2021-11-20 06:10:13,548 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:10:15,569 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:10:17,583 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:10:21,187 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:10:22,628 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:10:24,644 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:10:28,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:10:28,344 INFO L93 Difference]: Finished difference Result 38090 states and 58604 transitions. [2021-11-20 06:10:28,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 06:10:28,344 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 68 [2021-11-20 06:10:28,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:10:28,409 INFO L225 Difference]: With dead ends: 38090 [2021-11-20 06:10:28,409 INFO L226 Difference]: Without dead ends: 19330 [2021-11-20 06:10:28,472 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-20 06:10:28,473 INFO L933 BasicCegarLoop]: 7428 mSDtfsCounter, 3895 mSDsluCounter, 10789 mSDsCounter, 0 mSdLazyCounter, 18031 mSolverCounterSat, 1463 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4678 SdHoareTripleChecker+Valid, 18217 SdHoareTripleChecker+Invalid, 19499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1463 IncrementalHoareTripleChecker+Valid, 18031 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.1s IncrementalHoareTripleChecker+Time [2021-11-20 06:10:28,474 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4678 Valid, 18217 Invalid, 19499 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1463 Valid, 18031 Invalid, 5 Unknown, 0 Unchecked, 47.1s Time] [2021-11-20 06:10:28,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19330 states. [2021-11-20 06:10:29,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19330 to 18766. [2021-11-20 06:10:29,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18766 states, 13422 states have (on average 1.4089554462822231) internal successors, (18911), 13992 states have internal predecessors, (18911), 4400 states have call successors, (4400), 891 states have call predecessors, (4400), 943 states have return successors, (5496), 4175 states have call predecessors, (5496), 4383 states have call successors, (5496) [2021-11-20 06:10:29,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18766 states to 18766 states and 28807 transitions. [2021-11-20 06:10:29,713 INFO L78 Accepts]: Start accepts. Automaton has 18766 states and 28807 transitions. Word has length 68 [2021-11-20 06:10:29,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:10:29,714 INFO L470 AbstractCegarLoop]: Abstraction has 18766 states and 28807 transitions. [2021-11-20 06:10:29,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2021-11-20 06:10:29,714 INFO L276 IsEmpty]: Start isEmpty. Operand 18766 states and 28807 transitions. [2021-11-20 06:10:29,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-20 06:10:29,716 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:10:29,716 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:10:29,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-20 06:10:29,716 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:10:29,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:10:29,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1469961010, now seen corresponding path program 1 times [2021-11-20 06:10:29,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:10:29,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169993240] [2021-11-20 06:10:29,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:10:29,718 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:10:29,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:30,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:10:30,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:30,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-11-20 06:10:30,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:30,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 06:10:30,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:30,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:10:30,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:30,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-20 06:10:30,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:30,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 06:10:30,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:30,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-20 06:10:30,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:30,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:10:30,454 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:10:30,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169993240] [2021-11-20 06:10:30,455 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169993240] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:10:30,455 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:10:30,455 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 06:10:30,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103272856] [2021-11-20 06:10:30,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:10:30,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:10:30,456 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:10:30,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:10:30,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:10:30,457 INFO L87 Difference]: Start difference. First operand 18766 states and 28807 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2021-11-20 06:10:59,300 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:11:03,845 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:11:06,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:11:06,379 INFO L93 Difference]: Finished difference Result 38014 states and 59243 transitions. [2021-11-20 06:11:06,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 06:11:06,380 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 71 [2021-11-20 06:11:06,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:11:06,443 INFO L225 Difference]: With dead ends: 38014 [2021-11-20 06:11:06,443 INFO L226 Difference]: Without dead ends: 19254 [2021-11-20 06:11:06,518 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:11:06,518 INFO L933 BasicCegarLoop]: 8032 mSDtfsCounter, 10829 mSDsluCounter, 1638 mSDsCounter, 0 mSdLazyCounter, 10888 mSolverCounterSat, 4266 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11818 SdHoareTripleChecker+Valid, 9670 SdHoareTripleChecker+Invalid, 15156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4266 IncrementalHoareTripleChecker+Valid, 10888 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.4s IncrementalHoareTripleChecker+Time [2021-11-20 06:11:06,519 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11818 Valid, 9670 Invalid, 15156 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4266 Valid, 10888 Invalid, 2 Unknown, 0 Unchecked, 34.4s Time] [2021-11-20 06:11:06,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19254 states. [2021-11-20 06:11:07,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19254 to 18482. [2021-11-20 06:11:07,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18482 states, 13238 states have (on average 1.4093518658407616) internal successors, (18657), 13794 states have internal predecessors, (18657), 4317 states have call successors, (4317), 884 states have call predecessors, (4317), 926 states have return successors, (5006), 4087 states have call predecessors, (5006), 4230 states have call successors, (5006) [2021-11-20 06:11:07,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18482 states to 18482 states and 27980 transitions. [2021-11-20 06:11:07,354 INFO L78 Accepts]: Start accepts. Automaton has 18482 states and 27980 transitions. Word has length 71 [2021-11-20 06:11:07,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:11:07,355 INFO L470 AbstractCegarLoop]: Abstraction has 18482 states and 27980 transitions. [2021-11-20 06:11:07,355 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2021-11-20 06:11:07,355 INFO L276 IsEmpty]: Start isEmpty. Operand 18482 states and 27980 transitions. [2021-11-20 06:11:07,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-20 06:11:07,357 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:11:07,357 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-20 06:11:07,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-20 06:11:07,357 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:11:07,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:11:07,358 INFO L85 PathProgramCache]: Analyzing trace with hash 2139856505, now seen corresponding path program 1 times [2021-11-20 06:11:07,358 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:11:07,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336343159] [2021-11-20 06:11:07,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:11:07,359 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:11:07,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:11:07,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:11:07,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:11:07,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 06:11:07,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:11:07,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 06:11:07,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:11:07,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:11:07,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:11:07,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:11:07,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:11:07,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-20 06:11:07,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:11:07,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 06:11:07,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:11:07,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-20 06:11:07,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:11:07,978 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:11:07,978 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:11:07,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336343159] [2021-11-20 06:11:07,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336343159] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:11:07,979 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:11:07,979 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 06:11:07,979 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739180392] [2021-11-20 06:11:07,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:11:07,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 06:11:07,980 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:11:07,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 06:11:07,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-20 06:11:07,981 INFO L87 Difference]: Start difference. First operand 18482 states and 27980 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2021-11-20 06:11:53,372 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:11:59,303 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:12:02,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:12:02,409 INFO L93 Difference]: Finished difference Result 21401 states and 33201 transitions. [2021-11-20 06:12:02,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 06:12:02,410 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) Word has length 70 [2021-11-20 06:12:02,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:12:02,475 INFO L225 Difference]: With dead ends: 21401 [2021-11-20 06:12:02,475 INFO L226 Difference]: Without dead ends: 21197 [2021-11-20 06:12:02,482 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-20 06:12:02,483 INFO L933 BasicCegarLoop]: 7339 mSDtfsCounter, 7025 mSDsluCounter, 12393 mSDsCounter, 0 mSdLazyCounter, 23469 mSolverCounterSat, 3953 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7668 SdHoareTripleChecker+Valid, 19732 SdHoareTripleChecker+Invalid, 27424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 3953 IncrementalHoareTripleChecker+Valid, 23469 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 52.9s IncrementalHoareTripleChecker+Time [2021-11-20 06:12:02,483 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7668 Valid, 19732 Invalid, 27424 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [3953 Valid, 23469 Invalid, 2 Unknown, 0 Unchecked, 52.9s Time] [2021-11-20 06:12:02,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21197 states. [2021-11-20 06:12:03,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21197 to 18546. [2021-11-20 06:12:03,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18546 states, 13276 states have (on average 1.408933413678819) internal successors, (18705), 13844 states have internal predecessors, (18705), 4327 states have call successors, (4327), 884 states have call predecessors, (4327), 942 states have return successors, (5046), 4099 states have call predecessors, (5046), 4240 states have call successors, (5046) [2021-11-20 06:12:03,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18546 states to 18546 states and 28078 transitions. [2021-11-20 06:12:03,369 INFO L78 Accepts]: Start accepts. Automaton has 18546 states and 28078 transitions. Word has length 70 [2021-11-20 06:12:03,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:12:03,370 INFO L470 AbstractCegarLoop]: Abstraction has 18546 states and 28078 transitions. [2021-11-20 06:12:03,370 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2021-11-20 06:12:03,370 INFO L276 IsEmpty]: Start isEmpty. Operand 18546 states and 28078 transitions. [2021-11-20 06:12:03,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-20 06:12:03,372 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:12:03,372 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:12:03,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-20 06:12:03,372 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:12:03,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:12:03,373 INFO L85 PathProgramCache]: Analyzing trace with hash 848736446, now seen corresponding path program 1 times [2021-11-20 06:12:03,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:12:03,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934430022] [2021-11-20 06:12:03,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:12:03,374 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:12:03,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:12:03,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:12:03,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:12:03,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-11-20 06:12:03,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:12:03,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 06:12:03,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:12:03,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:12:03,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:12:03,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-20 06:12:03,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:12:03,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 06:12:03,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:12:03,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-20 06:12:03,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:12:03,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-11-20 06:12:03,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:12:03,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:12:03,928 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:12:03,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934430022] [2021-11-20 06:12:03,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934430022] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:12:03,929 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:12:03,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 06:12:03,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25651201] [2021-11-20 06:12:03,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:12:03,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 06:12:03,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:12:03,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 06:12:03,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-20 06:12:03,931 INFO L87 Difference]: Start difference. First operand 18546 states and 28078 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2021-11-20 06:12:30,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:12:30,906 INFO L93 Difference]: Finished difference Result 26225 states and 39372 transitions. [2021-11-20 06:12:30,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-20 06:12:30,906 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) Word has length 75 [2021-11-20 06:12:30,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:12:30,936 INFO L225 Difference]: With dead ends: 26225 [2021-11-20 06:12:30,937 INFO L226 Difference]: Without dead ends: 7685 [2021-11-20 06:12:30,982 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2021-11-20 06:12:30,983 INFO L933 BasicCegarLoop]: 4467 mSDtfsCounter, 6312 mSDsluCounter, 6093 mSDsCounter, 0 mSdLazyCounter, 16402 mSolverCounterSat, 2461 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6995 SdHoareTripleChecker+Valid, 10560 SdHoareTripleChecker+Invalid, 18863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2461 IncrementalHoareTripleChecker+Valid, 16402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.9s IncrementalHoareTripleChecker+Time [2021-11-20 06:12:30,983 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6995 Valid, 10560 Invalid, 18863 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2461 Valid, 16402 Invalid, 0 Unknown, 0 Unchecked, 25.9s Time] [2021-11-20 06:12:30,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7685 states. [2021-11-20 06:12:31,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7685 to 7444. [2021-11-20 06:12:31,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7444 states, 5341 states have (on average 1.3971166448230667) internal successors, (7462), 5587 states have internal predecessors, (7462), 1686 states have call successors, (1686), 431 states have call predecessors, (1686), 416 states have return successors, (1726), 1543 states have call predecessors, (1726), 1602 states have call successors, (1726) [2021-11-20 06:12:31,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7444 states to 7444 states and 10874 transitions. [2021-11-20 06:12:31,338 INFO L78 Accepts]: Start accepts. Automaton has 7444 states and 10874 transitions. Word has length 75 [2021-11-20 06:12:31,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:12:31,339 INFO L470 AbstractCegarLoop]: Abstraction has 7444 states and 10874 transitions. [2021-11-20 06:12:31,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2021-11-20 06:12:31,339 INFO L276 IsEmpty]: Start isEmpty. Operand 7444 states and 10874 transitions. [2021-11-20 06:12:31,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-20 06:12:31,341 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:12:31,341 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-20 06:12:31,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-20 06:12:31,341 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:12:31,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:12:31,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1492722057, now seen corresponding path program 1 times [2021-11-20 06:12:31,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:12:31,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586928857] [2021-11-20 06:12:31,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:12:31,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:12:31,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:12:31,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:12:31,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:12:31,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-11-20 06:12:31,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:12:31,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-20 06:12:31,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:12:31,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:12:31,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:12:31,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:12:31,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:12:31,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-20 06:12:31,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:12:31,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 06:12:31,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:12:31,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-20 06:12:31,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:12:31,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-20 06:12:31,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:12:32,007 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:12:32,007 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:12:32,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586928857] [2021-11-20 06:12:32,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586928857] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:12:32,008 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:12:32,008 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-20 06:12:32,008 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992470210] [2021-11-20 06:12:32,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:12:32,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 06:12:32,009 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:12:32,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 06:12:32,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-20 06:12:32,010 INFO L87 Difference]: Start difference. First operand 7444 states and 10874 transitions. Second operand has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 1 states have call successors, (9) [2021-11-20 06:13:10,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:13:10,866 INFO L93 Difference]: Finished difference Result 9020 states and 13589 transitions. [2021-11-20 06:13:10,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 06:13:10,868 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 1 states have call successors, (9) Word has length 77 [2021-11-20 06:13:10,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:13:10,889 INFO L225 Difference]: With dead ends: 9020 [2021-11-20 06:13:10,889 INFO L226 Difference]: Without dead ends: 8816 [2021-11-20 06:13:10,893 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-11-20 06:13:10,893 INFO L933 BasicCegarLoop]: 4440 mSDtfsCounter, 5899 mSDsluCounter, 7593 mSDsCounter, 0 mSdLazyCounter, 20998 mSolverCounterSat, 2725 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6464 SdHoareTripleChecker+Valid, 12033 SdHoareTripleChecker+Invalid, 23723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2725 IncrementalHoareTripleChecker+Valid, 20998 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:13:10,894 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6464 Valid, 12033 Invalid, 23723 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2725 Valid, 20998 Invalid, 0 Unknown, 0 Unchecked, 38.0s Time] [2021-11-20 06:13:10,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8816 states. [2021-11-20 06:13:11,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8816 to 7304. [2021-11-20 06:13:11,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7304 states, 5230 states have (on average 1.3978967495219885) internal successors, (7311), 5470 states have internal predecessors, (7311), 1664 states have call successors, (1664), 424 states have call predecessors, (1664), 409 states have return successors, (1705), 1527 states have call predecessors, (1705), 1585 states have call successors, (1705) [2021-11-20 06:13:11,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7304 states to 7304 states and 10680 transitions. [2021-11-20 06:13:11,186 INFO L78 Accepts]: Start accepts. Automaton has 7304 states and 10680 transitions. Word has length 77 [2021-11-20 06:13:11,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:13:11,186 INFO L470 AbstractCegarLoop]: Abstraction has 7304 states and 10680 transitions. [2021-11-20 06:13:11,186 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 1 states have call successors, (9) [2021-11-20 06:13:11,186 INFO L276 IsEmpty]: Start isEmpty. Operand 7304 states and 10680 transitions. [2021-11-20 06:13:11,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-20 06:13:11,190 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:13:11,190 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:13:11,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-20 06:13:11,191 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:13:11,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:13:11,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1292362508, now seen corresponding path program 1 times [2021-11-20 06:13:11,191 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:13:11,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834934360] [2021-11-20 06:13:11,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:13:11,192 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:13:11,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:11,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:13:11,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:11,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 06:13:11,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:11,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-20 06:13:11,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:11,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:13:11,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:11,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-20 06:13:11,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:11,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 06:13:11,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:11,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-11-20 06:13:11,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:11,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-20 06:13:11,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:11,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:13:11,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:11,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-20 06:13:11,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:11,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 06:13:11,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:11,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-20 06:13:11,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:11,814 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-20 06:13:11,814 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:13:11,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834934360] [2021-11-20 06:13:11,814 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834934360] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:13:11,815 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:13:11,815 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 06:13:11,815 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712879436] [2021-11-20 06:13:11,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:13:11,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 06:13:11,816 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:13:11,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 06:13:11,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:13:11,816 INFO L87 Difference]: Start difference. First operand 7304 states and 10680 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-20 06:13:34,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:13:34,871 INFO L93 Difference]: Finished difference Result 15761 states and 23361 transitions. [2021-11-20 06:13:34,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 06:13:34,877 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 107 [2021-11-20 06:13:34,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:13:34,899 INFO L225 Difference]: With dead ends: 15761 [2021-11-20 06:13:34,900 INFO L226 Difference]: Without dead ends: 8463 [2021-11-20 06:13:34,915 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-20 06:13:34,916 INFO L933 BasicCegarLoop]: 4108 mSDtfsCounter, 5762 mSDsluCounter, 1452 mSDsCounter, 0 mSdLazyCounter, 8239 mSolverCounterSat, 2750 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6274 SdHoareTripleChecker+Valid, 5560 SdHoareTripleChecker+Invalid, 10989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2750 IncrementalHoareTripleChecker+Valid, 8239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.4s IncrementalHoareTripleChecker+Time [2021-11-20 06:13:34,916 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6274 Valid, 5560 Invalid, 10989 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2750 Valid, 8239 Invalid, 0 Unknown, 0 Unchecked, 22.4s Time] [2021-11-20 06:13:34,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8463 states. [2021-11-20 06:13:35,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8463 to 7542. [2021-11-20 06:13:35,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7542 states, 5405 states have (on average 1.4001850138760408) internal successors, (7568), 5662 states have internal predecessors, (7568), 1708 states have call successors, (1708), 424 states have call predecessors, (1708), 428 states have return successors, (1821), 1581 states have call predecessors, (1821), 1629 states have call successors, (1821) [2021-11-20 06:13:35,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7542 states to 7542 states and 11097 transitions. [2021-11-20 06:13:35,359 INFO L78 Accepts]: Start accepts. Automaton has 7542 states and 11097 transitions. Word has length 107 [2021-11-20 06:13:35,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:13:35,360 INFO L470 AbstractCegarLoop]: Abstraction has 7542 states and 11097 transitions. [2021-11-20 06:13:35,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-20 06:13:35,360 INFO L276 IsEmpty]: Start isEmpty. Operand 7542 states and 11097 transitions. [2021-11-20 06:13:35,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-20 06:13:35,362 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:13:35,363 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:13:35,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-20 06:13:35,363 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:13:35,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:13:35,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1074332086, now seen corresponding path program 1 times [2021-11-20 06:13:35,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:13:35,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850544038] [2021-11-20 06:13:35,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:13:35,366 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:13:35,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:35,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:13:35,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:35,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 06:13:35,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:35,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-20 06:13:35,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:35,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:13:35,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:35,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-20 06:13:35,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:35,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 06:13:35,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:35,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-11-20 06:13:35,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:35,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-20 06:13:35,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:35,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:13:35,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:35,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-20 06:13:35,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:35,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 06:13:35,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:35,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-20 06:13:35,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:35,953 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-20 06:13:35,954 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:13:35,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850544038] [2021-11-20 06:13:35,954 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850544038] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:13:35,954 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:13:35,954 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 06:13:35,955 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784629997] [2021-11-20 06:13:35,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:13:35,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 06:13:35,955 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:13:35,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 06:13:35,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:13:35,956 INFO L87 Difference]: Start difference. First operand 7542 states and 11097 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2021-11-20 06:13:39,078 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:14:02,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:14:02,450 INFO L93 Difference]: Finished difference Result 16002 states and 23770 transitions. [2021-11-20 06:14:02,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 06:14:02,451 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 107 [2021-11-20 06:14:02,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:14:02,476 INFO L225 Difference]: With dead ends: 16002 [2021-11-20 06:14:02,476 INFO L226 Difference]: Without dead ends: 8466 [2021-11-20 06:14:02,494 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-20 06:14:02,495 INFO L933 BasicCegarLoop]: 4043 mSDtfsCounter, 5473 mSDsluCounter, 1867 mSDsCounter, 0 mSdLazyCounter, 8194 mSolverCounterSat, 2750 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5904 SdHoareTripleChecker+Valid, 5910 SdHoareTripleChecker+Invalid, 10944 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2750 IncrementalHoareTripleChecker+Valid, 8194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.8s IncrementalHoareTripleChecker+Time [2021-11-20 06:14:02,495 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5904 Valid, 5910 Invalid, 10944 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2750 Valid, 8194 Invalid, 0 Unknown, 0 Unchecked, 25.8s Time] [2021-11-20 06:14:02,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8466 states. [2021-11-20 06:14:02,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8466 to 7544. [2021-11-20 06:14:02,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7544 states, 5407 states have (on average 1.400036989088219) internal successors, (7570), 5664 states have internal predecessors, (7570), 1708 states have call successors, (1708), 424 states have call predecessors, (1708), 428 states have return successors, (1821), 1581 states have call predecessors, (1821), 1629 states have call successors, (1821) [2021-11-20 06:14:02,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7544 states to 7544 states and 11099 transitions. [2021-11-20 06:14:02,795 INFO L78 Accepts]: Start accepts. Automaton has 7544 states and 11099 transitions. Word has length 107 [2021-11-20 06:14:02,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:14:02,796 INFO L470 AbstractCegarLoop]: Abstraction has 7544 states and 11099 transitions. [2021-11-20 06:14:02,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2021-11-20 06:14:02,796 INFO L276 IsEmpty]: Start isEmpty. Operand 7544 states and 11099 transitions. [2021-11-20 06:14:02,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-20 06:14:02,800 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:14:02,801 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:14:02,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-20 06:14:02,801 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:14:02,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:14:02,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1860734148, now seen corresponding path program 1 times [2021-11-20 06:14:02,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:14:02,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564117657] [2021-11-20 06:14:02,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:14:02,802 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:14:03,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:14:03,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:14:03,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:14:03,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 06:14:03,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:14:03,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-20 06:14:03,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:14:03,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:14:03,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:14:03,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-20 06:14:03,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:14:03,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 06:14:03,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:14:03,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-11-20 06:14:03,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:14:03,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-20 06:14:03,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:14:03,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:14:03,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:14:03,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-20 06:14:03,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:14:03,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 06:14:03,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:14:03,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-20 06:14:03,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:14:03,469 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-20 06:14:03,469 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:14:03,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564117657] [2021-11-20 06:14:03,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564117657] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:14:03,472 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:14:03,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 06:14:03,472 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841852054] [2021-11-20 06:14:03,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:14:03,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 06:14:03,473 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:14:03,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 06:14:03,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:14:03,474 INFO L87 Difference]: Start difference. First operand 7544 states and 11099 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2021-11-20 06:14:06,343 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 06:14:30,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:14:30,307 INFO L93 Difference]: Finished difference Result 16002 states and 23768 transitions. [2021-11-20 06:14:30,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 06:14:30,308 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 110 [2021-11-20 06:14:30,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:14:30,332 INFO L225 Difference]: With dead ends: 16002 [2021-11-20 06:14:30,332 INFO L226 Difference]: Without dead ends: 8464 [2021-11-20 06:14:30,349 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-20 06:14:30,349 INFO L933 BasicCegarLoop]: 4063 mSDtfsCounter, 5458 mSDsluCounter, 1874 mSDsCounter, 0 mSdLazyCounter, 8212 mSolverCounterSat, 2747 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5889 SdHoareTripleChecker+Valid, 5937 SdHoareTripleChecker+Invalid, 10959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2747 IncrementalHoareTripleChecker+Valid, 8212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.1s IncrementalHoareTripleChecker+Time [2021-11-20 06:14:30,351 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5889 Valid, 5937 Invalid, 10959 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2747 Valid, 8212 Invalid, 0 Unknown, 0 Unchecked, 26.1s Time] [2021-11-20 06:14:30,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8464 states. [2021-11-20 06:14:30,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8464 to 7546. [2021-11-20 06:14:30,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7546 states, 5409 states have (on average 1.3998890737659457) internal successors, (7572), 5666 states have internal predecessors, (7572), 1708 states have call successors, (1708), 424 states have call predecessors, (1708), 428 states have return successors, (1821), 1581 states have call predecessors, (1821), 1629 states have call successors, (1821) [2021-11-20 06:14:30,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7546 states to 7546 states and 11101 transitions. [2021-11-20 06:14:30,656 INFO L78 Accepts]: Start accepts. Automaton has 7546 states and 11101 transitions. Word has length 110 [2021-11-20 06:14:30,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:14:30,656 INFO L470 AbstractCegarLoop]: Abstraction has 7546 states and 11101 transitions. [2021-11-20 06:14:30,656 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2021-11-20 06:14:30,656 INFO L276 IsEmpty]: Start isEmpty. Operand 7546 states and 11101 transitions. [2021-11-20 06:14:30,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-20 06:14:30,661 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:14:30,661 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:14:30,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-20 06:14:30,662 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:14:30,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:14:30,662 INFO L85 PathProgramCache]: Analyzing trace with hash -456164451, now seen corresponding path program 1 times [2021-11-20 06:14:30,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:14:30,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612022550] [2021-11-20 06:14:30,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:14:30,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:14:30,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:14:31,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:14:31,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:14:31,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-11-20 06:14:31,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:14:31,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 06:14:31,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:14:31,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:14:31,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:14:31,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-20 06:14:31,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:14:31,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 06:14:31,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:14:31,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-20 06:14:31,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:14:31,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-20 06:14:31,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:14:31,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:14:31,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:14:31,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-20 06:14:31,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:14:31,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 06:14:31,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:14:31,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-20 06:14:31,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:14:31,245 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-20 06:14:31,245 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:14:31,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612022550] [2021-11-20 06:14:31,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612022550] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:14:31,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1141009874] [2021-11-20 06:14:31,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:14:31,246 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:14:31,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4bf260-b9d2-4499-a350-817a0b4c0643/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:14:31,248 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4bf260-b9d2-4499-a350-817a0b4c0643/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:14:31,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4bf260-b9d2-4499-a350-817a0b4c0643/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 06:14:33,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:14:33,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 10535 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 06:14:33,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:14:33,914 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-20 06:14:33,914 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:14:34,242 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-20 06:14:34,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1141009874] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 06:14:34,242 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 06:14:34,243 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 9 [2021-11-20 06:14:34,243 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403558055] [2021-11-20 06:14:34,243 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 06:14:34,245 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 06:14:34,245 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:14:34,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 06:14:34,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-11-20 06:14:34,246 INFO L87 Difference]: Start difference. First operand 7546 states and 11101 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 7 states have internal predecessors, (95), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2021-11-20 06:15:04,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:15:04,798 INFO L93 Difference]: Finished difference Result 16026 states and 23804 transitions. [2021-11-20 06:15:04,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 06:15:04,799 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 7 states have internal predecessors, (95), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 118 [2021-11-20 06:15:04,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:15:04,827 INFO L225 Difference]: With dead ends: 16026 [2021-11-20 06:15:04,827 INFO L226 Difference]: Without dead ends: 8486 [2021-11-20 06:15:04,846 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-11-20 06:15:04,847 INFO L933 BasicCegarLoop]: 4064 mSDtfsCounter, 5480 mSDsluCounter, 3344 mSDsCounter, 0 mSdLazyCounter, 12116 mSolverCounterSat, 2750 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5911 SdHoareTripleChecker+Valid, 7408 SdHoareTripleChecker+Invalid, 14866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2750 IncrementalHoareTripleChecker+Valid, 12116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.7s IncrementalHoareTripleChecker+Time [2021-11-20 06:15:04,847 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5911 Valid, 7408 Invalid, 14866 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2750 Valid, 12116 Invalid, 0 Unknown, 0 Unchecked, 29.7s Time] [2021-11-20 06:15:04,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8486 states. [2021-11-20 06:15:05,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8486 to 7576. [2021-11-20 06:15:05,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7576 states, 5439 states have (on average 1.3998896856039713) internal successors, (7614), 5696 states have internal predecessors, (7614), 1708 states have call successors, (1708), 424 states have call predecessors, (1708), 428 states have return successors, (1821), 1581 states have call predecessors, (1821), 1629 states have call successors, (1821) [2021-11-20 06:15:05,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7576 states to 7576 states and 11143 transitions. [2021-11-20 06:15:05,203 INFO L78 Accepts]: Start accepts. Automaton has 7576 states and 11143 transitions. Word has length 118 [2021-11-20 06:15:05,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:15:05,203 INFO L470 AbstractCegarLoop]: Abstraction has 7576 states and 11143 transitions. [2021-11-20 06:15:05,204 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 7 states have internal predecessors, (95), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2021-11-20 06:15:05,204 INFO L276 IsEmpty]: Start isEmpty. Operand 7576 states and 11143 transitions. [2021-11-20 06:15:05,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-11-20 06:15:05,210 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:15:05,210 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:15:05,277 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4bf260-b9d2-4499-a350-817a0b4c0643/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-20 06:15:05,427 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4bf260-b9d2-4499-a350-817a0b4c0643/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-11-20 06:15:05,427 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:15:05,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:15:05,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1821362364, now seen corresponding path program 1 times [2021-11-20 06:15:05,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:15:05,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051091267] [2021-11-20 06:15:05,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:15:05,428 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:15:05,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:15:05,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:15:05,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:15:05,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 06:15:05,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:15:05,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-20 06:15:05,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:15:05,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:15:05,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:15:05,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-20 06:15:05,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:15:06,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 06:15:06,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:15:06,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-11-20 06:15:06,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:15:06,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-20 06:15:06,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:15:06,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:15:06,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:15:06,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-20 06:15:06,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:15:06,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 06:15:06,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:15:06,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-20 06:15:06,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:15:06,094 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2021-11-20 06:15:06,094 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:15:06,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051091267] [2021-11-20 06:15:06,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051091267] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:15:06,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1489788564] [2021-11-20 06:15:06,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:15:06,095 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:15:06,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4bf260-b9d2-4499-a350-817a0b4c0643/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:15:06,097 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4bf260-b9d2-4499-a350-817a0b4c0643/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:15:06,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4bf260-b9d2-4499-a350-817a0b4c0643/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-20 06:15:08,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:15:08,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 10562 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-20 06:15:08,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:15:09,027 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 1 proven. 34 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-20 06:15:09,027 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:15:09,518 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 1 proven. 34 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-20 06:15:09,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1489788564] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 06:15:09,519 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 06:15:09,520 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 16 [2021-11-20 06:15:09,520 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797891618] [2021-11-20 06:15:09,520 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 06:15:09,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-20 06:15:09,521 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:15:09,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-20 06:15:09,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2021-11-20 06:15:09,521 INFO L87 Difference]: Start difference. First operand 7576 states and 11143 transitions. Second operand has 16 states, 16 states have (on average 7.875) internal successors, (126), 14 states have internal predecessors, (126), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2021-11-20 06:15:12,957 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 06:16:06,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:16:06,878 INFO L93 Difference]: Finished difference Result 16326 states and 24256 transitions. [2021-11-20 06:16:06,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-11-20 06:16:06,879 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.875) internal successors, (126), 14 states have internal predecessors, (126), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 130 [2021-11-20 06:16:06,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:16:06,908 INFO L225 Difference]: With dead ends: 16326 [2021-11-20 06:16:06,908 INFO L226 Difference]: Without dead ends: 8756 [2021-11-20 06:16:06,929 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=404, Invalid=928, Unknown=0, NotChecked=0, Total=1332 [2021-11-20 06:16:06,930 INFO L933 BasicCegarLoop]: 4068 mSDtfsCounter, 5807 mSDsluCounter, 9181 mSDsCounter, 0 mSdLazyCounter, 27817 mSolverCounterSat, 2787 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6237 SdHoareTripleChecker+Valid, 13249 SdHoareTripleChecker+Invalid, 30604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2787 IncrementalHoareTripleChecker+Valid, 27817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 55.7s IncrementalHoareTripleChecker+Time [2021-11-20 06:16:06,930 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6237 Valid, 13249 Invalid, 30604 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2787 Valid, 27817 Invalid, 0 Unknown, 0 Unchecked, 55.7s Time] [2021-11-20 06:16:06,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8756 states. [2021-11-20 06:16:07,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8756 to 7742. [2021-11-20 06:16:07,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7742 states, 5605 states have (on average 1.399821587867975) internal successors, (7846), 5862 states have internal predecessors, (7846), 1708 states have call successors, (1708), 424 states have call predecessors, (1708), 428 states have return successors, (1821), 1581 states have call predecessors, (1821), 1629 states have call successors, (1821) [2021-11-20 06:16:07,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7742 states to 7742 states and 11375 transitions. [2021-11-20 06:16:07,293 INFO L78 Accepts]: Start accepts. Automaton has 7742 states and 11375 transitions. Word has length 130 [2021-11-20 06:16:07,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:16:07,293 INFO L470 AbstractCegarLoop]: Abstraction has 7742 states and 11375 transitions. [2021-11-20 06:16:07,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.875) internal successors, (126), 14 states have internal predecessors, (126), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2021-11-20 06:16:07,293 INFO L276 IsEmpty]: Start isEmpty. Operand 7742 states and 11375 transitions. [2021-11-20 06:16:07,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-11-20 06:16:07,303 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:16:07,304 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:16:07,375 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4bf260-b9d2-4499-a350-817a0b4c0643/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-20 06:16:07,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4bf260-b9d2-4499-a350-817a0b4c0643/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-11-20 06:16:07,531 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:16:07,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:16:07,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1973409451, now seen corresponding path program 1 times [2021-11-20 06:16:07,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:16:07,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802943683] [2021-11-20 06:16:07,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:16:07,532 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:16:07,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:16:07,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:16:07,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:16:08,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-11-20 06:16:08,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:16:08,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-20 06:16:08,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:16:08,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:16:08,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:16:08,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:16:08,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:16:08,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-20 06:16:08,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:16:08,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 06:16:08,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:16:08,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-20 06:16:08,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:16:08,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-11-20 06:16:08,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:16:08,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:16:08,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:16:08,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-20 06:16:08,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:16:08,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 06:16:08,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:16:08,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 06:16:08,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:16:08,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-20 06:16:08,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:16:08,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 06:16:08,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:16:08,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-20 06:16:08,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:16:08,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:16:08,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:16:08,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-20 06:16:08,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:16:08,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-20 06:16:08,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:16:08,458 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-20 06:16:08,459 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:16:08,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802943683] [2021-11-20 06:16:08,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802943683] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:16:08,462 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:16:08,462 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 06:16:08,462 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105819547] [2021-11-20 06:16:08,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:16:08,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 06:16:08,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:16:08,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 06:16:08,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-20 06:16:08,465 INFO L87 Difference]: Start difference. First operand 7742 states and 11375 transitions. Second operand has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-20 06:16:41,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:16:41,133 INFO L93 Difference]: Finished difference Result 16361 states and 24315 transitions. [2021-11-20 06:16:41,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 06:16:41,134 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 164 [2021-11-20 06:16:41,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:16:41,164 INFO L225 Difference]: With dead ends: 16361 [2021-11-20 06:16:41,164 INFO L226 Difference]: Without dead ends: 8625 [2021-11-20 06:16:41,186 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-20 06:16:41,187 INFO L933 BasicCegarLoop]: 4098 mSDtfsCounter, 6729 mSDsluCounter, 2158 mSDsCounter, 0 mSdLazyCounter, 8227 mSolverCounterSat, 3259 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7293 SdHoareTripleChecker+Valid, 6256 SdHoareTripleChecker+Invalid, 11486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3259 IncrementalHoareTripleChecker+Valid, 8227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.7s IncrementalHoareTripleChecker+Time [2021-11-20 06:16:41,187 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7293 Valid, 6256 Invalid, 11486 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3259 Valid, 8227 Invalid, 0 Unknown, 0 Unchecked, 31.7s Time] [2021-11-20 06:16:41,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8625 states. [2021-11-20 06:16:41,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8625 to 7744. [2021-11-20 06:16:41,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7744 states, 5607 states have (on average 1.3996789727126806) internal successors, (7848), 5864 states have internal predecessors, (7848), 1708 states have call successors, (1708), 424 states have call predecessors, (1708), 428 states have return successors, (1821), 1581 states have call predecessors, (1821), 1629 states have call successors, (1821) [2021-11-20 06:16:41,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7744 states to 7744 states and 11377 transitions. [2021-11-20 06:16:41,649 INFO L78 Accepts]: Start accepts. Automaton has 7744 states and 11377 transitions. Word has length 164 [2021-11-20 06:16:41,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:16:41,650 INFO L470 AbstractCegarLoop]: Abstraction has 7744 states and 11377 transitions. [2021-11-20 06:16:41,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-20 06:16:41,650 INFO L276 IsEmpty]: Start isEmpty. Operand 7744 states and 11377 transitions. [2021-11-20 06:16:41,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-11-20 06:16:41,660 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:16:41,661 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:16:41,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-20 06:16:41,661 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:16:41,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:16:41,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1480783277, now seen corresponding path program 1 times [2021-11-20 06:16:41,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:16:41,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787192401] [2021-11-20 06:16:41,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:16:41,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:16:41,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:16:42,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:16:42,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:16:42,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-11-20 06:16:42,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:16:42,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-20 06:16:42,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:16:42,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:16:42,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:16:42,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:16:42,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:16:42,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-20 06:16:42,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:16:42,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 06:16:42,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:16:42,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-20 06:16:42,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:16:42,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-11-20 06:16:42,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:16:42,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:16:42,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:16:42,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-20 06:16:42,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:16:42,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 06:16:42,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:16:42,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 06:16:42,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:16:42,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-20 06:16:42,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:16:42,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 06:16:42,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:16:42,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-20 06:16:42,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:16:42,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:16:42,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:16:42,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-20 06:16:42,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:16:42,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-20 06:16:42,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:16:42,453 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-20 06:16:42,453 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:16:42,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787192401] [2021-11-20 06:16:42,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787192401] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:16:42,454 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:16:42,454 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 06:16:42,454 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875817176] [2021-11-20 06:16:42,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:16:42,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 06:16:42,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:16:42,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 06:16:42,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-20 06:16:42,456 INFO L87 Difference]: Start difference. First operand 7744 states and 11377 transitions. Second operand has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 4 states have internal predecessors, (109), 2 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16)