./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--atheros--atl1e--atl1e.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b27e74f-0358-4c62-adff-663e23067523/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b27e74f-0358-4c62-adff-663e23067523/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_3b27e74f-0358-4c62-adff-663e23067523/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b27e74f-0358-4c62-adff-663e23067523/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--atheros--atl1e--atl1e.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b27e74f-0358-4c62-adff-663e23067523/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_3b27e74f-0358-4c62-adff-663e23067523/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 7e5652ce767ff2e1bcbd3f583f8e33ee2c54a0e67349cc7d1c1f8d74e875d01c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 05:46:56,296 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 05:46:56,299 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 05:46:56,349 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 05:46:56,349 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 05:46:56,354 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 05:46:56,356 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 05:46:56,360 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 05:46:56,363 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 05:46:56,371 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 05:46:56,372 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 05:46:56,374 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 05:46:56,375 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 05:46:56,377 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 05:46:56,380 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 05:46:56,386 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 05:46:56,389 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 05:46:56,390 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 05:46:56,394 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 05:46:56,398 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 05:46:56,403 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 05:46:56,404 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 05:46:56,407 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 05:46:56,408 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 05:46:56,414 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 05:46:56,415 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 05:46:56,415 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 05:46:56,417 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 05:46:56,418 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 05:46:56,419 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 05:46:56,420 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 05:46:56,420 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 05:46:56,422 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 05:46:56,424 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 05:46:56,425 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 05:46:56,425 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 05:46:56,426 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 05:46:56,426 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 05:46:56,426 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 05:46:56,427 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 05:46:56,428 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 05:46:56,429 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b27e74f-0358-4c62-adff-663e23067523/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-20 05:46:56,477 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 05:46:56,477 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 05:46:56,478 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 05:46:56,485 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 05:46:56,486 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 05:46:56,486 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 05:46:56,487 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 05:46:56,487 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 05:46:56,487 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 05:46:56,487 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 05:46:56,489 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 05:46:56,489 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 05:46:56,489 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 05:46:56,489 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 05:46:56,489 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 05:46:56,490 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 05:46:56,490 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 05:46:56,490 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 05:46:56,490 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 05:46:56,491 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 05:46:56,491 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 05:46:56,491 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 05:46:56,491 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 05:46:56,492 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 05:46:56,492 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 05:46:56,492 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 05:46:56,492 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 05:46:56,492 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 05:46:56,493 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 05:46:56,494 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 05:46:56,494 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 05:46:56,495 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_3b27e74f-0358-4c62-adff-663e23067523/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b27e74f-0358-4c62-adff-663e23067523/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e5652ce767ff2e1bcbd3f583f8e33ee2c54a0e67349cc7d1c1f8d74e875d01c [2021-11-20 05:46:56,778 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 05:46:56,800 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 05:46:56,802 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 05:46:56,804 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 05:46:56,804 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 05:46:56,806 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b27e74f-0358-4c62-adff-663e23067523/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--atheros--atl1e--atl1e.ko-entry_point.cil.out.i [2021-11-20 05:46:56,874 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b27e74f-0358-4c62-adff-663e23067523/bin/uautomizer-DQz5hQGWxF/data/f39f9d2ab/1c703974fec2476992f7edf80e0ecb8e/FLAG65220361a [2021-11-20 05:46:57,844 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 05:46:57,845 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b27e74f-0358-4c62-adff-663e23067523/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--atheros--atl1e--atl1e.ko-entry_point.cil.out.i [2021-11-20 05:46:57,917 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b27e74f-0358-4c62-adff-663e23067523/bin/uautomizer-DQz5hQGWxF/data/f39f9d2ab/1c703974fec2476992f7edf80e0ecb8e/FLAG65220361a [2021-11-20 05:46:58,221 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b27e74f-0358-4c62-adff-663e23067523/bin/uautomizer-DQz5hQGWxF/data/f39f9d2ab/1c703974fec2476992f7edf80e0ecb8e [2021-11-20 05:46:58,223 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 05:46:58,225 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 05:46:58,227 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 05:46:58,227 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 05:46:58,230 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 05:46:58,231 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:46:58" (1/1) ... [2021-11-20 05:46:58,234 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14dde66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:46:58, skipping insertion in model container [2021-11-20 05:46:58,234 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:46:58" (1/1) ... [2021-11-20 05:46:58,241 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 05:46:58,405 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 05:47:02,247 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_3b27e74f-0358-4c62-adff-663e23067523/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--atheros--atl1e--atl1e.ko-entry_point.cil.out.i[418024,418037] [2021-11-20 05:47:02,324 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 05:47:02,360 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 05:47:02,912 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_3b27e74f-0358-4c62-adff-663e23067523/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--atheros--atl1e--atl1e.ko-entry_point.cil.out.i[418024,418037] [2021-11-20 05:47:02,923 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 05:47:03,190 INFO L208 MainTranslator]: Completed translation [2021-11-20 05:47:03,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:03 WrapperNode [2021-11-20 05:47:03,191 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 05:47:03,192 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 05:47:03,192 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 05:47:03,192 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 05:47:03,200 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:03" (1/1) ... [2021-11-20 05:47:03,345 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:03" (1/1) ... [2021-11-20 05:47:03,658 INFO L137 Inliner]: procedures = 464, calls = 3161, calls flagged for inlining = 208, calls inlined = 193, statements flattened = 7498 [2021-11-20 05:47:03,660 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 05:47:03,661 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 05:47:03,661 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 05:47:03,662 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 05:47:03,672 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:03" (1/1) ... [2021-11-20 05:47:03,673 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:03" (1/1) ... [2021-11-20 05:47:03,721 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:03" (1/1) ... [2021-11-20 05:47:03,722 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:03" (1/1) ... [2021-11-20 05:47:03,892 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:03" (1/1) ... [2021-11-20 05:47:03,933 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:03" (1/1) ... [2021-11-20 05:47:04,050 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:03" (1/1) ... [2021-11-20 05:47:04,113 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 05:47:04,114 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 05:47:04,114 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 05:47:04,115 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 05:47:04,116 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:03" (1/1) ... [2021-11-20 05:47:04,126 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 05:47:04,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b27e74f-0358-4c62-adff-663e23067523/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:47:04,156 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b27e74f-0358-4c62-adff-663e23067523/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 05:47:04,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b27e74f-0358-4c62-adff-663e23067523/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 05:47:04,205 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-20 05:47:04,206 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-20 05:47:04,206 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-20 05:47:04,206 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-20 05:47:04,206 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_read_phy_reg [2021-11-20 05:47:04,207 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_read_phy_reg [2021-11-20 05:47:04,207 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-20 05:47:04,207 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-20 05:47:04,207 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_force_ps [2021-11-20 05:47:04,207 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_force_ps [2021-11-20 05:47:04,207 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2021-11-20 05:47:04,208 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2021-11-20 05:47:04,208 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-20 05:47:04,208 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-20 05:47:04,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-11-20 05:47:04,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-11-20 05:47:04,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-20 05:47:04,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-20 05:47:04,209 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_del_timer [2021-11-20 05:47:04,209 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_del_timer [2021-11-20 05:47:04,209 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2021-11-20 05:47:04,209 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2021-11-20 05:47:04,210 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_io_error_detected [2021-11-20 05:47:04,210 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_io_error_detected [2021-11-20 05:47:04,210 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_change_mtu [2021-11-20 05:47:04,210 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_change_mtu [2021-11-20 05:47:04,210 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_3 [2021-11-20 05:47:04,210 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_3 [2021-11-20 05:47:04,211 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-20 05:47:04,211 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-20 05:47:04,211 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-20 05:47:04,211 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-20 05:47:04,211 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-20 05:47:04,211 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-20 05:47:04,212 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-20 05:47:04,212 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-20 05:47:04,212 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_irq_disable [2021-11-20 05:47:04,212 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_irq_disable [2021-11-20 05:47:04,212 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_restart_autoneg [2021-11-20 05:47:04,213 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_restart_autoneg [2021-11-20 05:47:04,213 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-20 05:47:04,213 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-20 05:47:04,213 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_tpd [2021-11-20 05:47:04,214 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_tpd [2021-11-20 05:47:04,214 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-20 05:47:04,214 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-20 05:47:04,214 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-20 05:47:04,214 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-20 05:47:04,215 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-20 05:47:04,215 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-20 05:47:04,215 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-20 05:47:04,215 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-20 05:47:04,216 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_free_irq [2021-11-20 05:47:04,216 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_free_irq [2021-11-20 05:47:04,216 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-20 05:47:04,216 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-20 05:47:04,217 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-11-20 05:47:04,218 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-11-20 05:47:04,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 05:47:04,218 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2021-11-20 05:47:04,218 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2021-11-20 05:47:04,219 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_shutdown [2021-11-20 05:47:04,219 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_shutdown [2021-11-20 05:47:04,219 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2021-11-20 05:47:04,219 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2021-11-20 05:47:04,220 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_check_eeprom_exist [2021-11-20 05:47:04,220 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_check_eeprom_exist [2021-11-20 05:47:04,220 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-11-20 05:47:04,221 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-11-20 05:47:04,221 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-20 05:47:04,221 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-20 05:47:04,221 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-20 05:47:04,221 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-20 05:47:04,221 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-20 05:47:04,222 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_hw_set_mac_addr [2021-11-20 05:47:04,222 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_hw_set_mac_addr [2021-11-20 05:47:04,222 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-20 05:47:04,223 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-20 05:47:04,223 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-20 05:47:04,223 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-20 05:47:04,223 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_tx_buffer [2021-11-20 05:47:04,224 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_tx_buffer [2021-11-20 05:47:04,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-20 05:47:04,224 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_reset_task [2021-11-20 05:47:04,224 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_reset_task [2021-11-20 05:47:04,224 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 05:47:04,224 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-20 05:47:04,225 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-20 05:47:04,225 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2021-11-20 05:47:04,225 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2021-11-20 05:47:04,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-20 05:47:04,226 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-20 05:47:04,226 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2021-11-20 05:47:04,226 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2021-11-20 05:47:04,226 INFO L130 BoogieDeclarations]: Found specification of procedure pci_choose_state [2021-11-20 05:47:04,227 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_choose_state [2021-11-20 05:47:04,228 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-20 05:47:04,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-20 05:47:04,228 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_irq_reset [2021-11-20 05:47:04,228 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_irq_reset [2021-11-20 05:47:04,229 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-20 05:47:04,229 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-20 05:47:04,229 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-20 05:47:04,229 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-20 05:47:04,230 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_down [2021-11-20 05:47:04,230 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_down [2021-11-20 05:47:04,230 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-11-20 05:47:04,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-11-20 05:47:04,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 05:47:04,231 INFO L130 BoogieDeclarations]: Found specification of procedure __atl1e_vlan_mode [2021-11-20 05:47:04,231 INFO L138 BoogieDeclarations]: Found implementation of procedure __atl1e_vlan_mode [2021-11-20 05:47:04,231 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 05:47:04,231 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-20 05:47:04,231 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-20 05:47:04,232 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_fix_features [2021-11-20 05:47:04,232 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_fix_features [2021-11-20 05:47:04,232 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-20 05:47:04,233 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-20 05:47:04,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 05:47:04,236 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-20 05:47:04,236 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2021-11-20 05:47:04,236 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2021-11-20 05:47:04,236 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_set_multi [2021-11-20 05:47:04,238 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_set_multi [2021-11-20 05:47:04,238 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2021-11-20 05:47:04,238 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2021-11-20 05:47:04,238 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_remove [2021-11-20 05:47:04,239 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_remove [2021-11-20 05:47:04,244 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-20 05:47:04,244 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-20 05:47:04,244 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-20 05:47:04,245 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-20 05:47:04,245 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-20 05:47:04,245 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-20 05:47:04,245 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_free_ring_resources [2021-11-20 05:47:04,245 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_free_ring_resources [2021-11-20 05:47:04,245 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_stats [2021-11-20 05:47:04,246 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_stats [2021-11-20 05:47:04,246 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2021-11-20 05:47:04,246 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2021-11-20 05:47:04,246 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-20 05:47:04,246 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-20 05:47:04,246 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-20 05:47:04,246 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-20 05:47:04,247 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_validate_option [2021-11-20 05:47:04,247 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_validate_option [2021-11-20 05:47:04,247 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2021-11-20 05:47:04,247 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2021-11-20 05:47:04,247 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2021-11-20 05:47:04,247 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2021-11-20 05:47:04,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 05:47:04,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 05:47:04,248 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2021-11-20 05:47:04,248 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2021-11-20 05:47:04,248 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-20 05:47:04,248 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-20 05:47:04,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-20 05:47:04,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-20 05:47:04,249 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-20 05:47:04,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-20 05:47:04,249 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-20 05:47:04,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-20 05:47:04,249 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-20 05:47:04,250 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-20 05:47:04,250 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-20 05:47:04,250 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-20 05:47:04,250 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_clean_tx_ring [2021-11-20 05:47:04,250 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_clean_tx_ring [2021-11-20 05:47:04,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_7 [2021-11-20 05:47:04,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_7 [2021-11-20 05:47:04,251 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-20 05:47:04,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-20 05:47:04,251 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-20 05:47:04,251 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-20 05:47:04,251 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2021-11-20 05:47:04,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2021-11-20 05:47:04,252 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-11-20 05:47:04,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-11-20 05:47:04,252 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_set_mac_addr [2021-11-20 05:47:04,252 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_set_mac_addr [2021-11-20 05:47:04,252 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-20 05:47:04,252 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-20 05:47:04,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-20 05:47:04,253 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-20 05:47:04,253 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_resume [2021-11-20 05:47:04,253 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_resume [2021-11-20 05:47:04,253 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-20 05:47:04,253 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-20 05:47:04,253 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-20 05:47:04,254 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-20 05:47:04,254 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-11-20 05:47:04,254 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-11-20 05:47:04,256 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_4 [2021-11-20 05:47:04,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_4 [2021-11-20 05:47:04,256 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 05:47:04,256 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-20 05:47:04,256 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-20 05:47:04,256 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-11-20 05:47:04,257 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-11-20 05:47:04,257 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-20 05:47:04,257 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-20 05:47:04,257 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_tx_timeout [2021-11-20 05:47:04,257 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_tx_timeout [2021-11-20 05:47:04,257 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 05:47:04,257 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_vlan_mode [2021-11-20 05:47:04,258 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_vlan_mode [2021-11-20 05:47:04,258 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_write_phy_reg [2021-11-20 05:47:04,258 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_write_phy_reg [2021-11-20 05:47:04,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-11-20 05:47:04,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-11-20 05:47:04,258 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-11-20 05:47:04,259 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-11-20 05:47:04,259 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_up [2021-11-20 05:47:04,259 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_up [2021-11-20 05:47:04,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-20 05:47:04,259 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_3 [2021-11-20 05:47:04,259 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_3 [2021-11-20 05:47:04,259 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_phy_commit [2021-11-20 05:47:04,260 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_phy_commit [2021-11-20 05:47:04,260 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-20 05:47:04,260 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-20 05:47:04,260 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2021-11-20 05:47:04,260 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2021-11-20 05:47:04,260 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-11-20 05:47:04,260 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-11-20 05:47:04,261 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-11-20 05:47:04,261 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-11-20 05:47:04,261 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-20 05:47:04,261 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-20 05:47:04,261 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-20 05:47:04,261 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-20 05:47:04,262 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-20 05:47:04,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-20 05:47:04,262 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_ioctl [2021-11-20 05:47:04,262 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_ioctl [2021-11-20 05:47:04,262 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_link_chg_task [2021-11-20 05:47:04,262 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_link_chg_task [2021-11-20 05:47:04,262 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_reinit_locked [2021-11-20 05:47:04,263 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_reinit_locked [2021-11-20 05:47:04,263 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_phy_init [2021-11-20 05:47:04,263 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_phy_init [2021-11-20 05:47:04,263 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_intr [2021-11-20 05:47:04,263 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_intr [2021-11-20 05:47:04,263 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-20 05:47:04,264 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-20 05:47:04,265 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2021-11-20 05:47:04,268 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2021-11-20 05:47:04,268 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-20 05:47:04,268 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-20 05:47:04,269 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_4 [2021-11-20 05:47:04,269 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_4 [2021-11-20 05:47:04,269 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2021-11-20 05:47:04,269 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2021-11-20 05:47:04,269 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_irq_enable [2021-11-20 05:47:04,269 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_irq_enable [2021-11-20 05:47:04,271 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-20 05:47:04,271 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-20 05:47:04,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 05:47:04,271 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_io_slot_reset [2021-11-20 05:47:04,272 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_io_slot_reset [2021-11-20 05:47:04,272 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_netpoll [2021-11-20 05:47:04,272 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_netpoll [2021-11-20 05:47:04,272 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-20 05:47:04,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-20 05:47:04,272 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_read_eeprom [2021-11-20 05:47:04,272 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_read_eeprom [2021-11-20 05:47:04,273 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_suspend [2021-11-20 05:47:04,273 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_suspend [2021-11-20 05:47:04,273 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-20 05:47:04,273 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-20 05:47:04,273 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-11-20 05:47:04,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-11-20 05:47:04,273 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-20 05:47:04,274 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-20 05:47:04,274 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_set_features [2021-11-20 05:47:04,274 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_set_features [2021-11-20 05:47:04,274 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-11-20 05:47:04,274 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-11-20 05:47:04,274 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_request_irq [2021-11-20 05:47:04,274 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_request_irq [2021-11-20 05:47:04,275 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-11-20 05:47:04,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-11-20 05:47:04,275 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdrlen [2021-11-20 05:47:04,275 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdrlen [2021-11-20 05:47:04,275 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_6 [2021-11-20 05:47:04,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_6 [2021-11-20 05:47:04,275 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-20 05:47:04,276 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-20 05:47:04,276 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-20 05:47:04,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-20 05:47:04,276 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_eeprom_len [2021-11-20 05:47:04,276 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_eeprom_len [2021-11-20 05:47:04,276 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-11-20 05:47:04,276 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-11-20 05:47:04,277 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-20 05:47:04,277 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-20 05:47:04,277 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_reset_hw [2021-11-20 05:47:04,277 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_reset_hw [2021-11-20 05:47:04,277 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2021-11-20 05:47:04,277 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2021-11-20 05:47:04,278 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-20 05:47:04,278 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-20 05:47:04,278 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-20 05:47:04,278 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-20 05:47:04,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 05:47:04,278 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2021-11-20 05:47:04,278 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2021-11-20 05:47:04,279 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_regs_len [2021-11-20 05:47:04,279 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_regs_len [2021-11-20 05:47:04,279 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_clean_rx_ring [2021-11-20 05:47:04,279 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_clean_rx_ring [2021-11-20 05:47:05,464 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 05:47:05,472 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 05:47:05,910 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-20 05:47:16,111 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 05:47:16,151 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 05:47:16,151 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-20 05:47:16,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:47:16 BoogieIcfgContainer [2021-11-20 05:47:16,157 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 05:47:16,159 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 05:47:16,160 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 05:47:16,163 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 05:47:16,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 05:46:58" (1/3) ... [2021-11-20 05:47:16,165 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@404a6943 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:47:16, skipping insertion in model container [2021-11-20 05:47:16,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:03" (2/3) ... [2021-11-20 05:47:16,166 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@404a6943 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:47:16, skipping insertion in model container [2021-11-20 05:47:16,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:47:16" (3/3) ... [2021-11-20 05:47:16,169 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--atheros--atl1e--atl1e.ko-entry_point.cil.out.i [2021-11-20 05:47:16,175 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 05:47:16,175 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 05:47:16,252 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 05:47:16,269 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 05:47:16,269 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 05:47:16,357 INFO L276 IsEmpty]: Start isEmpty. Operand has 2730 states, 1872 states have (on average 1.3178418803418803) internal successors, (2467), 1910 states have internal predecessors, (2467), 710 states have call successors, (710), 147 states have call predecessors, (710), 146 states have return successors, (699), 695 states have call predecessors, (699), 699 states have call successors, (699) [2021-11-20 05:47:16,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-11-20 05:47:16,394 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:47:16,395 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:47:16,396 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:47:16,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:47:16,400 INFO L85 PathProgramCache]: Analyzing trace with hash -1343496821, now seen corresponding path program 1 times [2021-11-20 05:47:16,409 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:47:16,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180245828] [2021-11-20 05:47:16,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:47:16,411 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:47:16,868 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 05:47:16,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1336462770] [2021-11-20 05:47:16,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:47:16,869 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:47:16,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b27e74f-0358-4c62-adff-663e23067523/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:47:16,871 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b27e74f-0358-4c62-adff-663e23067523/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:47:16,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b27e74f-0358-4c62-adff-663e23067523/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 05:47:18,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:18,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 3130 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 05:47:18,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:47:18,469 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2021-11-20 05:47:18,469 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 05:47:18,470 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:47:18,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180245828] [2021-11-20 05:47:18,474 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 05:47:18,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1336462770] [2021-11-20 05:47:18,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1336462770] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:47:18,475 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:47:18,476 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 05:47:18,478 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259080686] [2021-11-20 05:47:18,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:47:18,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:47:18,484 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:47:18,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:47:18,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:47:18,527 INFO L87 Difference]: Start difference. First operand has 2730 states, 1872 states have (on average 1.3178418803418803) internal successors, (2467), 1910 states have internal predecessors, (2467), 710 states have call successors, (710), 147 states have call predecessors, (710), 146 states have return successors, (699), 695 states have call predecessors, (699), 699 states have call successors, (699) Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-20 05:47:19,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:47:19,272 INFO L93 Difference]: Finished difference Result 7516 states and 10737 transitions. [2021-11-20 05:47:19,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:47:19,275 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 175 [2021-11-20 05:47:19,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:47:19,342 INFO L225 Difference]: With dead ends: 7516 [2021-11-20 05:47:19,342 INFO L226 Difference]: Without dead ends: 4738 [2021-11-20 05:47:19,366 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:47:19,372 INFO L933 BasicCegarLoop]: 4332 mSDtfsCounter, 2950 mSDsluCounter, 3696 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2950 SdHoareTripleChecker+Valid, 8028 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 05:47:19,373 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2950 Valid, 8028 Invalid, 180 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [40 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 05:47:19,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4738 states. [2021-11-20 05:47:19,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4738 to 4688. [2021-11-20 05:47:19,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4688 states, 3247 states have (on average 1.312596242685556) internal successors, (4262), 3296 states have internal predecessors, (4262), 1185 states have call successors, (1185), 257 states have call predecessors, (1185), 255 states have return successors, (1184), 1169 states have call predecessors, (1184), 1184 states have call successors, (1184) [2021-11-20 05:47:19,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4688 states to 4688 states and 6631 transitions. [2021-11-20 05:47:19,793 INFO L78 Accepts]: Start accepts. Automaton has 4688 states and 6631 transitions. Word has length 175 [2021-11-20 05:47:19,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:47:19,796 INFO L470 AbstractCegarLoop]: Abstraction has 4688 states and 6631 transitions. [2021-11-20 05:47:19,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-20 05:47:19,797 INFO L276 IsEmpty]: Start isEmpty. Operand 4688 states and 6631 transitions. [2021-11-20 05:47:19,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2021-11-20 05:47:19,816 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:47:19,817 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:47:19,857 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b27e74f-0358-4c62-adff-663e23067523/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-20 05:47:20,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b27e74f-0358-4c62-adff-663e23067523/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:47:20,039 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:47:20,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:47:20,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1325061642, now seen corresponding path program 1 times [2021-11-20 05:47:20,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:47:20,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401930882] [2021-11-20 05:47:20,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:47:20,041 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:47:20,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:20,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:47:20,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:20,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:47:20,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:20,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:47:20,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:20,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 05:47:20,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:20,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:47:20,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:20,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:47:20,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:20,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 05:47:20,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:20,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:47:20,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:20,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:47:20,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:20,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-20 05:47:20,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:20,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:47:20,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:20,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:47:20,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:20,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-20 05:47:20,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:20,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:47:20,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:20,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-20 05:47:20,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:20,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:47:20,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:20,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-11-20 05:47:20,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:20,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:47:20,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:20,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-11-20 05:47:20,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:20,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:47:20,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:20,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-11-20 05:47:20,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:20,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:47:20,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:20,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-20 05:47:20,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:20,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:47:20,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:20,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-20 05:47:20,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:20,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:47:20,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:20,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:47:20,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:20,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-11-20 05:47:20,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:20,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:47:20,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:20,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:47:20,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:20,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-20 05:47:20,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:20,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:47:20,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:20,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:47:20,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:21,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-11-20 05:47:21,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:21,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:47:21,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:21,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:47:21,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:21,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-11-20 05:47:21,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:21,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:47:21,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:21,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:47:21,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:21,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-11-20 05:47:21,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:21,096 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 639 trivial. 0 not checked. [2021-11-20 05:47:21,096 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:47:21,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401930882] [2021-11-20 05:47:21,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401930882] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:47:21,100 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:47:21,100 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 05:47:21,100 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988148198] [2021-11-20 05:47:21,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:47:21,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:47:21,103 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:47:21,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:47:21,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:47:21,104 INFO L87 Difference]: Start difference. First operand 4688 states and 6631 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-20 05:47:26,418 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 05:47:31,992 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:47:34,524 WARN L515 Checker$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 05:47:38,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:47:38,781 INFO L93 Difference]: Finished difference Result 14592 states and 20906 transitions. [2021-11-20 05:47:38,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 05:47:38,782 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 251 [2021-11-20 05:47:38,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:47:38,885 INFO L225 Difference]: With dead ends: 14592 [2021-11-20 05:47:38,885 INFO L226 Difference]: Without dead ends: 9935 [2021-11-20 05:47:38,913 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-20 05:47:38,914 INFO L933 BasicCegarLoop]: 4046 mSDtfsCounter, 8183 mSDsluCounter, 4655 mSDsCounter, 0 mSdLazyCounter, 3110 mSolverCounterSat, 5747 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8619 SdHoareTripleChecker+Valid, 8701 SdHoareTripleChecker+Invalid, 8860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5747 IncrementalHoareTripleChecker+Valid, 3110 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.8s IncrementalHoareTripleChecker+Time [2021-11-20 05:47:38,916 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8619 Valid, 8701 Invalid, 8860 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5747 Valid, 3110 Invalid, 3 Unknown, 0 Unchecked, 16.8s Time] [2021-11-20 05:47:38,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9935 states. [2021-11-20 05:47:39,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9935 to 8699. [2021-11-20 05:47:39,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8699 states, 6033 states have (on average 1.3109564064312946) internal successors, (7909), 6127 states have internal predecessors, (7909), 2170 states have call successors, (2170), 499 states have call predecessors, (2170), 495 states have return successors, (2169), 2138 states have call predecessors, (2169), 2169 states have call successors, (2169) [2021-11-20 05:47:39,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8699 states to 8699 states and 12248 transitions. [2021-11-20 05:47:39,503 INFO L78 Accepts]: Start accepts. Automaton has 8699 states and 12248 transitions. Word has length 251 [2021-11-20 05:47:39,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:47:39,504 INFO L470 AbstractCegarLoop]: Abstraction has 8699 states and 12248 transitions. [2021-11-20 05:47:39,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-20 05:47:39,506 INFO L276 IsEmpty]: Start isEmpty. Operand 8699 states and 12248 transitions. [2021-11-20 05:47:39,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2021-11-20 05:47:39,530 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:47:39,530 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2021-11-20 05:47:39,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 05:47:39,531 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:47:39,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:47:39,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1856672465, now seen corresponding path program 1 times [2021-11-20 05:47:39,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:47:39,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123697758] [2021-11-20 05:47:39,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:47:39,532 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:47:39,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:39,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:47:39,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:39,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:47:39,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:40,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:47:40,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:40,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 05:47:40,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:40,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:47:40,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:40,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:47:40,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:40,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 05:47:40,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:40,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:47:40,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:40,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:47:40,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:40,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-20 05:47:40,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:40,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:47:40,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:40,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:47:40,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:40,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-20 05:47:40,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:40,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:47:40,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:40,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-20 05:47:40,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:40,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:47:40,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:40,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-11-20 05:47:40,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:40,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:47:40,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:40,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-11-20 05:47:40,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:40,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:47:40,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:40,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-11-20 05:47:40,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:40,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:47:40,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:40,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-20 05:47:40,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:40,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:47:40,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:40,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-20 05:47:40,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:40,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:47:40,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:40,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:47:40,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:40,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-20 05:47:40,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:40,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:47:40,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:40,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:47:40,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:40,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-20 05:47:40,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:40,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:47:40,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:40,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:47:40,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:40,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-11-20 05:47:40,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:40,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:47:40,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:40,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:47:40,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:40,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-11-20 05:47:40,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:40,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:47:40,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:40,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:47:40,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:40,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-11-20 05:47:40,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:40,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-11-20 05:47:40,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:40,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:47:40,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:40,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:47:40,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:40,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-11-20 05:47:40,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:40,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:47:40,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:40,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:47:40,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:40,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-11-20 05:47:40,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:40,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:47:40,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:40,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:47:40,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:40,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2021-11-20 05:47:40,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:40,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:47:40,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:40,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:47:40,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:40,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2021-11-20 05:47:40,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:40,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:47:40,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:40,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:47:40,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:40,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2021-11-20 05:47:40,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:40,715 INFO L134 CoverageAnalysis]: Checked inductivity of 1418 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1418 trivial. 0 not checked. [2021-11-20 05:47:40,715 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:47:40,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123697758] [2021-11-20 05:47:40,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123697758] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:47:40,716 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:47:40,716 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 05:47:40,716 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991149362] [2021-11-20 05:47:40,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:47:40,719 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 05:47:40,719 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:47:40,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 05:47:40,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-20 05:47:40,720 INFO L87 Difference]: Start difference. First operand 8699 states and 12248 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (28), 7 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-20 05:47:48,334 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:47:50,018 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:47:52,045 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:47:56,093 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:47:58,126 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:48:00,162 WARN L515 Checker$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 05:48:04,408 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:48:10,190 WARN L515 Checker$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 05:48:14,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:48:14,336 INFO L93 Difference]: Finished difference Result 19282 states and 27848 transitions. [2021-11-20 05:48:14,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 05:48:14,339 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (28), 7 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 358 [2021-11-20 05:48:14,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:48:14,501 INFO L225 Difference]: With dead ends: 19282 [2021-11-20 05:48:14,501 INFO L226 Difference]: Without dead ends: 19279 [2021-11-20 05:48:14,513 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-11-20 05:48:14,514 INFO L933 BasicCegarLoop]: 4392 mSDtfsCounter, 6606 mSDsluCounter, 9539 mSDsCounter, 0 mSdLazyCounter, 7843 mSolverCounterSat, 4241 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7127 SdHoareTripleChecker+Valid, 13931 SdHoareTripleChecker+Invalid, 12089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4241 IncrementalHoareTripleChecker+Valid, 7843 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.7s IncrementalHoareTripleChecker+Time [2021-11-20 05:48:14,515 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7127 Valid, 13931 Invalid, 12089 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4241 Valid, 7843 Invalid, 5 Unknown, 0 Unchecked, 32.7s Time] [2021-11-20 05:48:14,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19279 states. [2021-11-20 05:48:15,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19279 to 17182. [2021-11-20 05:48:15,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17182 states, 11958 states have (on average 1.3131794614484027) internal successors, (15703), 12128 states have internal predecessors, (15703), 4250 states have call successors, (4250), 968 states have call predecessors, (4250), 973 states have return successors, (4317), 4203 states have call predecessors, (4317), 4249 states have call successors, (4317) [2021-11-20 05:48:15,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17182 states to 17182 states and 24270 transitions. [2021-11-20 05:48:15,560 INFO L78 Accepts]: Start accepts. Automaton has 17182 states and 24270 transitions. Word has length 358 [2021-11-20 05:48:15,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:48:15,562 INFO L470 AbstractCegarLoop]: Abstraction has 17182 states and 24270 transitions. [2021-11-20 05:48:15,562 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (28), 7 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-20 05:48:15,563 INFO L276 IsEmpty]: Start isEmpty. Operand 17182 states and 24270 transitions. [2021-11-20 05:48:15,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 476 [2021-11-20 05:48:15,624 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:48:15,625 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:48:15,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 05:48:15,625 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:48:15,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:48:15,626 INFO L85 PathProgramCache]: Analyzing trace with hash -437176915, now seen corresponding path program 1 times [2021-11-20 05:48:15,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:48:15,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970107489] [2021-11-20 05:48:15,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:48:15,627 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:48:15,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:15,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:48:15,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:15,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:48:15,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:16,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:48:16,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:16,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 05:48:16,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:16,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:48:16,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:16,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:48:16,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:16,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 05:48:16,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:16,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:48:16,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:16,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:48:16,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:16,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-20 05:48:16,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:16,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:48:16,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:16,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:48:16,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:16,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-20 05:48:16,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:16,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:48:16,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:16,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-20 05:48:16,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:16,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:48:16,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:16,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-11-20 05:48:16,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:16,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:48:16,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:16,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-11-20 05:48:16,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:16,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:48:16,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:16,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-11-20 05:48:16,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:16,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:48:16,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:16,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-20 05:48:16,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:16,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:48:16,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:16,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-20 05:48:16,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:16,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-20 05:48:16,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:16,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-20 05:48:16,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:16,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-20 05:48:16,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:16,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-20 05:48:16,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:16,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-11-20 05:48:16,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:16,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-11-20 05:48:16,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:16,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-11-20 05:48:16,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:16,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-20 05:48:16,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:16,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-11-20 05:48:16,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:16,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-11-20 05:48:16,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:16,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-11-20 05:48:16,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:16,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-11-20 05:48:16,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:16,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:48:16,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:16,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-20 05:48:16,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:16,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 05:48:16,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:16,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2021-11-20 05:48:16,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:16,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2021-11-20 05:48:16,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:16,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2021-11-20 05:48:16,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:16,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2021-11-20 05:48:16,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:16,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2021-11-20 05:48:16,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:16,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2021-11-20 05:48:16,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:16,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2021-11-20 05:48:16,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:16,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2021-11-20 05:48:16,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:16,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2021-11-20 05:48:16,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:16,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2021-11-20 05:48:16,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:16,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:48:16,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:16,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:48:16,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:16,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2021-11-20 05:48:16,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:16,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:48:16,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:16,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:48:16,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:16,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2021-11-20 05:48:16,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:16,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 395 [2021-11-20 05:48:16,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:16,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 400 [2021-11-20 05:48:16,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:16,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2021-11-20 05:48:16,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:16,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2021-11-20 05:48:16,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:16,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 418 [2021-11-20 05:48:16,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:16,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:48:16,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:16,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 453 [2021-11-20 05:48:16,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:16,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 458 [2021-11-20 05:48:16,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:16,796 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 340 trivial. 0 not checked. [2021-11-20 05:48:16,797 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:48:16,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970107489] [2021-11-20 05:48:16,797 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970107489] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:48:16,797 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:48:16,797 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 05:48:16,798 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103735179] [2021-11-20 05:48:16,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:48:16,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 05:48:16,799 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:48:16,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 05:48:16,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-11-20 05:48:16,800 INFO L87 Difference]: Start difference. First operand 17182 states and 24270 transitions. Second operand has 8 states, 8 states have (on average 29.375) internal successors, (235), 3 states have internal predecessors, (235), 2 states have call successors, (53), 7 states have call predecessors, (53), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2021-11-20 05:48:23,925 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:48:25,946 WARN L515 Checker$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 05:48:31,118 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:48:33,152 WARN L515 Checker$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 05:48:35,832 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:48:37,259 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:48:39,291 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 05:48:44,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:48:44,386 INFO L93 Difference]: Finished difference Result 51143 states and 73078 transitions. [2021-11-20 05:48:44,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 05:48:44,387 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 29.375) internal successors, (235), 3 states have internal predecessors, (235), 2 states have call successors, (53), 7 states have call predecessors, (53), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) Word has length 475 [2021-11-20 05:48:44,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:48:44,576 INFO L225 Difference]: With dead ends: 51143 [2021-11-20 05:48:44,576 INFO L226 Difference]: Without dead ends: 33992 [2021-11-20 05:48:44,678 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-11-20 05:48:44,681 INFO L933 BasicCegarLoop]: 4812 mSDtfsCounter, 6023 mSDsluCounter, 8662 mSDsCounter, 0 mSdLazyCounter, 6450 mSolverCounterSat, 3614 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6668 SdHoareTripleChecker+Valid, 13474 SdHoareTripleChecker+Invalid, 10068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3614 IncrementalHoareTripleChecker+Valid, 6450 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.5s IncrementalHoareTripleChecker+Time [2021-11-20 05:48:44,684 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6668 Valid, 13474 Invalid, 10068 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3614 Valid, 6450 Invalid, 4 Unknown, 0 Unchecked, 26.5s Time] [2021-11-20 05:48:44,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33992 states. [2021-11-20 05:48:46,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33992 to 30202. [2021-11-20 05:48:46,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30202 states, 21047 states have (on average 1.3118734261414928) internal successors, (27611), 21323 states have internal predecessors, (27611), 7392 states have call successors, (7392), 1747 states have call predecessors, (7392), 1762 states have return successors, (7527), 7327 states have call predecessors, (7527), 7391 states have call successors, (7527) [2021-11-20 05:48:46,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30202 states to 30202 states and 42530 transitions. [2021-11-20 05:48:46,521 INFO L78 Accepts]: Start accepts. Automaton has 30202 states and 42530 transitions. Word has length 475 [2021-11-20 05:48:46,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:48:46,522 INFO L470 AbstractCegarLoop]: Abstraction has 30202 states and 42530 transitions. [2021-11-20 05:48:46,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 29.375) internal successors, (235), 3 states have internal predecessors, (235), 2 states have call successors, (53), 7 states have call predecessors, (53), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2021-11-20 05:48:46,523 INFO L276 IsEmpty]: Start isEmpty. Operand 30202 states and 42530 transitions. [2021-11-20 05:48:46,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 511 [2021-11-20 05:48:46,639 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:48:46,639 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:48:46,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 05:48:46,640 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:48:46,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:48:46,641 INFO L85 PathProgramCache]: Analyzing trace with hash -494377388, now seen corresponding path program 1 times [2021-11-20 05:48:46,641 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:48:46,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490906546] [2021-11-20 05:48:46,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:48:46,641 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:48:46,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:46,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:48:46,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:46,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:48:46,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:46,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:48:46,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:46,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 05:48:46,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:46,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:48:46,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:46,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:48:46,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:46,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 05:48:46,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:46,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:48:46,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:47,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:48:47,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:47,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-20 05:48:47,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:47,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:48:47,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:47,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:48:47,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:47,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-20 05:48:47,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:47,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:48:47,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:47,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-20 05:48:47,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:47,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:48:47,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:47,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-11-20 05:48:47,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:47,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:48:47,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:47,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-11-20 05:48:47,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:47,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:48:47,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:47,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-11-20 05:48:47,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:47,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:48:47,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:47,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-20 05:48:47,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:47,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:48:47,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:47,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-20 05:48:47,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:47,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:48:47,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:47,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:48:47,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:47,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-11-20 05:48:47,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:47,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-11-20 05:48:47,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:47,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-20 05:48:47,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:47,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-11-20 05:48:47,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:47,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-11-20 05:48:47,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:47,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-11-20 05:48:47,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:47,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-11-20 05:48:47,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:47,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2021-11-20 05:48:47,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:47,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-11-20 05:48:47,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:47,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2021-11-20 05:48:47,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:47,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2021-11-20 05:48:47,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:47,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-11-20 05:48:47,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:47,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2021-11-20 05:48:47,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:47,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:48:47,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:47,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-20 05:48:47,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:47,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 05:48:47,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:47,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2021-11-20 05:48:47,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:47,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2021-11-20 05:48:47,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:47,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2021-11-20 05:48:47,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:47,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2021-11-20 05:48:47,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:47,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2021-11-20 05:48:47,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:47,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2021-11-20 05:48:47,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:47,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2021-11-20 05:48:47,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:47,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2021-11-20 05:48:47,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:47,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2021-11-20 05:48:47,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:47,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2021-11-20 05:48:47,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:47,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:48:47,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:47,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:48:47,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:47,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2021-11-20 05:48:47,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:47,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:48:47,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:47,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:48:47,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:47,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2021-11-20 05:48:47,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:47,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2021-11-20 05:48:47,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:47,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 435 [2021-11-20 05:48:47,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:47,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 441 [2021-11-20 05:48:47,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:47,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2021-11-20 05:48:47,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:47,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 453 [2021-11-20 05:48:47,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:47,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:48:47,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:47,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 488 [2021-11-20 05:48:47,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:47,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 493 [2021-11-20 05:48:47,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:47,951 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked. [2021-11-20 05:48:47,951 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:48:47,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490906546] [2021-11-20 05:48:47,952 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490906546] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:48:47,952 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:48:47,952 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 05:48:47,952 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434310075] [2021-11-20 05:48:47,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:48:47,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 05:48:47,954 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:48:47,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 05:48:47,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-11-20 05:48:47,955 INFO L87 Difference]: Start difference. First operand 30202 states and 42530 transitions. Second operand has 8 states, 8 states have (on average 31.75) internal successors, (254), 3 states have internal predecessors, (254), 2 states have call successors, (54), 7 states have call predecessors, (54), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-20 05:48:53,905 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:48:57,257 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:49:00,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:49:00,143 INFO L93 Difference]: Finished difference Result 64138 states and 91307 transitions. [2021-11-20 05:49:00,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 05:49:00,144 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 31.75) internal successors, (254), 3 states have internal predecessors, (254), 2 states have call successors, (54), 7 states have call predecessors, (54), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 510 [2021-11-20 05:49:00,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:49:00,296 INFO L225 Difference]: With dead ends: 64138 [2021-11-20 05:49:00,296 INFO L226 Difference]: Without dead ends: 33981 [2021-11-20 05:49:00,384 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-11-20 05:49:00,385 INFO L933 BasicCegarLoop]: 3546 mSDtfsCounter, 6936 mSDsluCounter, 3254 mSDsCounter, 0 mSdLazyCounter, 2338 mSolverCounterSat, 4540 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7433 SdHoareTripleChecker+Valid, 6800 SdHoareTripleChecker+Invalid, 6878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4540 IncrementalHoareTripleChecker+Valid, 2338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2021-11-20 05:49:00,386 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7433 Valid, 6800 Invalid, 6878 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4540 Valid, 2338 Invalid, 0 Unknown, 0 Unchecked, 11.1s Time] [2021-11-20 05:49:00,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33981 states. [2021-11-20 05:49:02,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33981 to 30178. [2021-11-20 05:49:02,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30178 states, 21023 states have (on average 1.3118489273652667) internal successors, (27579), 21303 states have internal predecessors, (27579), 7392 states have call successors, (7392), 1747 states have call predecessors, (7392), 1762 states have return successors, (7527), 7323 states have call predecessors, (7527), 7391 states have call successors, (7527) [2021-11-20 05:49:02,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30178 states to 30178 states and 42498 transitions. [2021-11-20 05:49:02,368 INFO L78 Accepts]: Start accepts. Automaton has 30178 states and 42498 transitions. Word has length 510 [2021-11-20 05:49:02,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:49:02,372 INFO L470 AbstractCegarLoop]: Abstraction has 30178 states and 42498 transitions. [2021-11-20 05:49:02,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 31.75) internal successors, (254), 3 states have internal predecessors, (254), 2 states have call successors, (54), 7 states have call predecessors, (54), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-20 05:49:02,373 INFO L276 IsEmpty]: Start isEmpty. Operand 30178 states and 42498 transitions. [2021-11-20 05:49:02,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 583 [2021-11-20 05:49:02,466 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:49:02,466 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:49:02,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 05:49:02,467 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:49:02,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:49:02,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1753705096, now seen corresponding path program 1 times [2021-11-20 05:49:02,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:49:02,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873191253] [2021-11-20 05:49:02,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:49:02,468 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:49:02,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:03,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:49:03,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:03,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:03,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:03,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:49:03,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:03,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 05:49:03,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:03,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:03,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:03,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:49:03,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:03,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 05:49:03,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:03,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:03,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:03,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:49:03,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:03,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-20 05:49:03,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:03,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:03,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:03,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:49:03,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:03,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-20 05:49:03,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:03,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:03,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:03,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-20 05:49:03,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:03,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:03,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:03,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-11-20 05:49:03,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:03,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:03,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:03,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-11-20 05:49:03,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:03,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:03,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:03,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-11-20 05:49:03,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:03,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:03,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:03,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-20 05:49:03,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:03,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:03,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:03,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-20 05:49:03,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:03,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:03,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:03,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:49:03,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:03,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-20 05:49:03,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:03,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:03,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:03,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:49:03,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:03,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-20 05:49:03,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:03,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:03,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:03,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:49:03,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:03,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-11-20 05:49:03,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:03,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:03,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:03,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:49:03,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:03,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-11-20 05:49:03,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:03,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:03,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:03,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:49:03,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:03,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-11-20 05:49:03,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:03,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-20 05:49:03,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:03,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2021-11-20 05:49:03,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:03,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2021-11-20 05:49:03,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:03,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-11-20 05:49:03,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:03,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2021-11-20 05:49:03,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:03,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2021-11-20 05:49:03,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:03,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2021-11-20 05:49:03,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:03,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2021-11-20 05:49:03,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:03,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2021-11-20 05:49:03,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:03,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2021-11-20 05:49:03,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:03,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2021-11-20 05:49:03,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:03,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2021-11-20 05:49:03,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:03,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2021-11-20 05:49:03,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:03,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:03,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:03,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-20 05:49:03,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:03,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 05:49:03,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:03,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2021-11-20 05:49:03,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:03,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 401 [2021-11-20 05:49:03,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:03,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 408 [2021-11-20 05:49:03,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:03,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2021-11-20 05:49:03,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:03,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 419 [2021-11-20 05:49:03,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:03,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2021-11-20 05:49:03,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:03,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2021-11-20 05:49:03,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:04,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 433 [2021-11-20 05:49:04,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:04,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 437 [2021-11-20 05:49:04,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:04,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 444 [2021-11-20 05:49:04,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:04,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:04,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:04,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:49:04,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:04,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2021-11-20 05:49:04,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:04,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:04,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:04,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:49:04,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:04,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 477 [2021-11-20 05:49:04,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:04,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 502 [2021-11-20 05:49:04,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:04,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 507 [2021-11-20 05:49:04,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:04,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 513 [2021-11-20 05:49:04,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:04,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2021-11-20 05:49:04,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:04,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 525 [2021-11-20 05:49:04,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:04,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:04,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:04,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 560 [2021-11-20 05:49:04,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:04,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 565 [2021-11-20 05:49:04,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:04,289 INFO L134 CoverageAnalysis]: Checked inductivity of 856 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2021-11-20 05:49:04,289 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:49:04,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873191253] [2021-11-20 05:49:04,289 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873191253] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:49:04,290 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:49:04,290 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 05:49:04,290 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143613372] [2021-11-20 05:49:04,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:49:04,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 05:49:04,293 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:49:04,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 05:49:04,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:49:04,294 INFO L87 Difference]: Start difference. First operand 30178 states and 42498 transitions. Second operand has 10 states, 10 states have (on average 26.1) internal successors, (261), 5 states have internal predecessors, (261), 2 states have call successors, (59), 7 states have call predecessors, (59), 1 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2021-11-20 05:49:13,099 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:49:15,125 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:49:20,284 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:49:22,322 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:49:24,021 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:49:26,063 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:49:27,604 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:49:29,644 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:49:35,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:49:35,187 INFO L93 Difference]: Finished difference Result 81706 states and 120739 transitions. [2021-11-20 05:49:35,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-20 05:49:35,188 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 26.1) internal successors, (261), 5 states have internal predecessors, (261), 2 states have call successors, (59), 7 states have call predecessors, (59), 1 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) Word has length 582 [2021-11-20 05:49:35,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:49:35,661 INFO L225 Difference]: With dead ends: 81706 [2021-11-20 05:49:35,661 INFO L226 Difference]: Without dead ends: 51573 [2021-11-20 05:49:35,756 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-11-20 05:49:35,757 INFO L933 BasicCegarLoop]: 5320 mSDtfsCounter, 6863 mSDsluCounter, 18382 mSDsCounter, 0 mSdLazyCounter, 8121 mSolverCounterSat, 3461 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7115 SdHoareTripleChecker+Valid, 23702 SdHoareTripleChecker+Invalid, 11586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3461 IncrementalHoareTripleChecker+Valid, 8121 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.1s IncrementalHoareTripleChecker+Time [2021-11-20 05:49:35,758 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7115 Valid, 23702 Invalid, 11586 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3461 Valid, 8121 Invalid, 4 Unknown, 0 Unchecked, 29.1s Time] [2021-11-20 05:49:35,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51573 states. [2021-11-20 05:49:37,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51573 to 30202. [2021-11-20 05:49:37,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30202 states, 21047 states have (on average 1.3114933244642941) internal successors, (27603), 21327 states have internal predecessors, (27603), 7392 states have call successors, (7392), 1747 states have call predecessors, (7392), 1762 states have return successors, (7527), 7323 states have call predecessors, (7527), 7391 states have call successors, (7527) [2021-11-20 05:49:38,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30202 states to 30202 states and 42522 transitions. [2021-11-20 05:49:38,340 INFO L78 Accepts]: Start accepts. Automaton has 30202 states and 42522 transitions. Word has length 582 [2021-11-20 05:49:38,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:49:38,342 INFO L470 AbstractCegarLoop]: Abstraction has 30202 states and 42522 transitions. [2021-11-20 05:49:38,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 26.1) internal successors, (261), 5 states have internal predecessors, (261), 2 states have call successors, (59), 7 states have call predecessors, (59), 1 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2021-11-20 05:49:38,342 INFO L276 IsEmpty]: Start isEmpty. Operand 30202 states and 42522 transitions. [2021-11-20 05:49:38,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 583 [2021-11-20 05:49:38,409 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:49:38,409 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:49:38,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-20 05:49:38,410 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:49:38,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:49:38,411 INFO L85 PathProgramCache]: Analyzing trace with hash -1076911290, now seen corresponding path program 1 times [2021-11-20 05:49:38,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:49:38,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993427440] [2021-11-20 05:49:38,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:49:38,411 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:49:38,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:49:39,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:39,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:49:39,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 05:49:39,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:39,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:49:39,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 05:49:39,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:39,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:49:39,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-20 05:49:39,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:39,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:49:39,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-20 05:49:39,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:39,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-20 05:49:39,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:39,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-11-20 05:49:39,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:39,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-11-20 05:49:39,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:39,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-11-20 05:49:39,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:39,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-20 05:49:39,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:39,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-20 05:49:39,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:39,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:49:39,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-20 05:49:39,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:39,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:49:39,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-20 05:49:39,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:39,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:49:39,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-11-20 05:49:39,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:39,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:49:39,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-11-20 05:49:39,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:39,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:49:39,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-11-20 05:49:39,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-20 05:49:39,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2021-11-20 05:49:39,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2021-11-20 05:49:39,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-11-20 05:49:39,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2021-11-20 05:49:39,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2021-11-20 05:49:39,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2021-11-20 05:49:39,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2021-11-20 05:49:39,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2021-11-20 05:49:39,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2021-11-20 05:49:39,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2021-11-20 05:49:39,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2021-11-20 05:49:39,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2021-11-20 05:49:39,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:39,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-20 05:49:39,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 05:49:39,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2021-11-20 05:49:39,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 401 [2021-11-20 05:49:39,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 408 [2021-11-20 05:49:39,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2021-11-20 05:49:39,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 419 [2021-11-20 05:49:39,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2021-11-20 05:49:39,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2021-11-20 05:49:39,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 433 [2021-11-20 05:49:39,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 437 [2021-11-20 05:49:39,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 444 [2021-11-20 05:49:39,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:39,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:49:39,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2021-11-20 05:49:39,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:39,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:49:39,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 477 [2021-11-20 05:49:39,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 502 [2021-11-20 05:49:39,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 507 [2021-11-20 05:49:39,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 513 [2021-11-20 05:49:39,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2021-11-20 05:49:39,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 525 [2021-11-20 05:49:39,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:39,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 560 [2021-11-20 05:49:39,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 565 [2021-11-20 05:49:39,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:39,945 INFO L134 CoverageAnalysis]: Checked inductivity of 856 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2021-11-20 05:49:39,946 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:49:39,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993427440] [2021-11-20 05:49:39,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993427440] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:49:39,946 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:49:39,947 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-20 05:49:39,947 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650794536] [2021-11-20 05:49:39,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:49:39,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 05:49:39,948 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:49:39,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 05:49:39,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-11-20 05:49:39,949 INFO L87 Difference]: Start difference. First operand 30202 states and 42522 transitions. Second operand has 9 states, 9 states have (on average 29.0) internal successors, (261), 4 states have internal predecessors, (261), 2 states have call successors, (59), 7 states have call predecessors, (59), 1 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2021-11-20 05:49:49,448 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 05:49:51,484 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:49:53,518 WARN L515 Checker$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 05:49:55,548 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:50:02,107 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:50:03,803 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:50:05,062 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:50:07,092 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:50:10,050 WARN L515 Checker$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 05:50:16,891 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:50:18,924 WARN L515 Checker$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 05:50:20,961 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:50:22,995 WARN L515 Checker$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 05:50:26,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:50:26,204 INFO L93 Difference]: Finished difference Result 65764 states and 93981 transitions. [2021-11-20 05:50:26,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 05:50:26,215 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 29.0) internal successors, (261), 4 states have internal predecessors, (261), 2 states have call successors, (59), 7 states have call predecessors, (59), 1 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) Word has length 582 [2021-11-20 05:50:26,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:50:26,372 INFO L225 Difference]: With dead ends: 65764 [2021-11-20 05:50:26,372 INFO L226 Difference]: Without dead ends: 35607 [2021-11-20 05:50:26,463 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:50:26,464 INFO L933 BasicCegarLoop]: 4545 mSDtfsCounter, 3318 mSDsluCounter, 15401 mSDsCounter, 0 mSdLazyCounter, 8853 mSolverCounterSat, 1599 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3573 SdHoareTripleChecker+Valid, 19946 SdHoareTripleChecker+Invalid, 10462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1599 IncrementalHoareTripleChecker+Valid, 8853 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.9s IncrementalHoareTripleChecker+Time [2021-11-20 05:50:26,465 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3573 Valid, 19946 Invalid, 10462 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1599 Valid, 8853 Invalid, 10 Unknown, 0 Unchecked, 44.9s Time] [2021-11-20 05:50:26,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35607 states. [2021-11-20 05:50:27,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35607 to 30202. [2021-11-20 05:50:27,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30202 states, 21047 states have (on average 1.3111132227870956) internal successors, (27595), 21327 states have internal predecessors, (27595), 7392 states have call successors, (7392), 1747 states have call predecessors, (7392), 1762 states have return successors, (7527), 7323 states have call predecessors, (7527), 7391 states have call successors, (7527) [2021-11-20 05:50:28,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30202 states to 30202 states and 42514 transitions. [2021-11-20 05:50:28,332 INFO L78 Accepts]: Start accepts. Automaton has 30202 states and 42514 transitions. Word has length 582 [2021-11-20 05:50:28,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:50:28,333 INFO L470 AbstractCegarLoop]: Abstraction has 30202 states and 42514 transitions. [2021-11-20 05:50:28,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 29.0) internal successors, (261), 4 states have internal predecessors, (261), 2 states have call successors, (59), 7 states have call predecessors, (59), 1 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2021-11-20 05:50:28,334 INFO L276 IsEmpty]: Start isEmpty. Operand 30202 states and 42514 transitions. [2021-11-20 05:50:28,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 610 [2021-11-20 05:50:28,432 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:50:28,433 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:50:28,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-20 05:50:28,434 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:50:28,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:50:28,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1733883895, now seen corresponding path program 1 times [2021-11-20 05:50:28,435 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:50:28,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040618740] [2021-11-20 05:50:28,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:50:28,436 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:50:29,006 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 05:50:29,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1014951896] [2021-11-20 05:50:29,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:50:29,007 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:50:29,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b27e74f-0358-4c62-adff-663e23067523/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:50:29,010 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b27e74f-0358-4c62-adff-663e23067523/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:50:29,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b27e74f-0358-4c62-adff-663e23067523/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-20 05:50:30,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:30,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 5750 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 05:50:30,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:50:31,823 INFO L134 CoverageAnalysis]: Checked inductivity of 865 backedges. 151 proven. 0 refuted. 0 times theorem prover too weak. 714 trivial. 0 not checked. [2021-11-20 05:50:31,823 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 05:50:31,823 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:50:31,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040618740] [2021-11-20 05:50:31,824 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 05:50:31,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1014951896] [2021-11-20 05:50:31,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1014951896] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:50:31,824 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:50:31,825 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 05:50:31,825 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784943291] [2021-11-20 05:50:31,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:50:31,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:50:31,827 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:50:31,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:50:31,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:50:31,828 INFO L87 Difference]: Start difference. First operand 30202 states and 42514 transitions. Second operand has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 2 states have call successors, (67), 2 states have call predecessors, (67), 2 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) [2021-11-20 05:50:33,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:50:33,159 INFO L93 Difference]: Finished difference Result 60551 states and 85694 transitions. [2021-11-20 05:50:33,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:50:33,160 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 2 states have call successors, (67), 2 states have call predecessors, (67), 2 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) Word has length 609 [2021-11-20 05:50:33,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:50:33,305 INFO L225 Difference]: With dead ends: 60551 [2021-11-20 05:50:33,305 INFO L226 Difference]: Without dead ends: 30394 [2021-11-20 05:50:33,392 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 608 GetRequests, 607 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:50:33,393 INFO L933 BasicCegarLoop]: 3823 mSDtfsCounter, 15 mSDsluCounter, 3807 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 7630 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:50:33,393 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 7630 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 05:50:33,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30394 states. [2021-11-20 05:50:34,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30394 to 30298. [2021-11-20 05:50:34,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30298 states, 21127 states have (on average 1.3106924788185734) internal successors, (27691), 21407 states have internal predecessors, (27691), 7408 states have call successors, (7408), 1747 states have call predecessors, (7408), 1762 states have return successors, (7543), 7339 states have call predecessors, (7543), 7407 states have call successors, (7543) [2021-11-20 05:50:35,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30298 states to 30298 states and 42642 transitions. [2021-11-20 05:50:35,056 INFO L78 Accepts]: Start accepts. Automaton has 30298 states and 42642 transitions. Word has length 609 [2021-11-20 05:50:35,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:50:35,059 INFO L470 AbstractCegarLoop]: Abstraction has 30298 states and 42642 transitions. [2021-11-20 05:50:35,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 2 states have call successors, (67), 2 states have call predecessors, (67), 2 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) [2021-11-20 05:50:35,059 INFO L276 IsEmpty]: Start isEmpty. Operand 30298 states and 42642 transitions. [2021-11-20 05:50:35,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 617 [2021-11-20 05:50:35,131 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:50:35,132 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:50:35,182 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b27e74f-0358-4c62-adff-663e23067523/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-20 05:50:35,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b27e74f-0358-4c62-adff-663e23067523/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:50:35,347 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:50:35,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:50:35,348 INFO L85 PathProgramCache]: Analyzing trace with hash 2016370181, now seen corresponding path program 1 times [2021-11-20 05:50:35,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:50:35,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247151988] [2021-11-20 05:50:35,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:50:35,349 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:50:35,704 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 05:50:35,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2021247793] [2021-11-20 05:50:35,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:50:35,705 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:50:35,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b27e74f-0358-4c62-adff-663e23067523/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:50:35,706 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b27e74f-0358-4c62-adff-663e23067523/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:50:35,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b27e74f-0358-4c62-adff-663e23067523/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-20 05:50:37,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:37,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 5773 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 05:50:37,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:50:38,592 INFO L134 CoverageAnalysis]: Checked inductivity of 871 backedges. 170 proven. 0 refuted. 0 times theorem prover too weak. 701 trivial. 0 not checked. [2021-11-20 05:50:38,592 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 05:50:38,592 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:50:38,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247151988] [2021-11-20 05:50:38,592 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 05:50:38,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2021247793] [2021-11-20 05:50:38,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2021247793] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:50:38,593 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:50:38,593 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 05:50:38,593 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632737010] [2021-11-20 05:50:38,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:50:38,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:50:38,595 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:50:38,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:50:38,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:50:38,596 INFO L87 Difference]: Start difference. First operand 30298 states and 42642 transitions. Second operand has 3 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 3 states have call successors, (68), 3 states have call predecessors, (68), 3 states have return successors, (66), 3 states have call predecessors, (66), 3 states have call successors, (66) [2021-11-20 05:50:40,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:50:40,429 INFO L93 Difference]: Finished difference Result 73928 states and 104157 transitions. [2021-11-20 05:50:40,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:50:40,430 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 3 states have call successors, (68), 3 states have call predecessors, (68), 3 states have return successors, (66), 3 states have call predecessors, (66), 3 states have call successors, (66) Word has length 616 [2021-11-20 05:50:40,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:50:40,750 INFO L225 Difference]: With dead ends: 73928 [2021-11-20 05:50:40,750 INFO L226 Difference]: Without dead ends: 43675 [2021-11-20 05:50:40,837 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 615 GetRequests, 614 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:50:40,839 INFO L933 BasicCegarLoop]: 4349 mSDtfsCounter, 3057 mSDsluCounter, 3616 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3057 SdHoareTripleChecker+Valid, 7965 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 05:50:40,840 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3057 Valid, 7965 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 05:50:40,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43675 states. [2021-11-20 05:50:42,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43675 to 43440. [2021-11-20 05:50:42,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43440 states, 30397 states have (on average 1.313748067243478) internal successors, (39934), 30803 states have internal predecessors, (39934), 10493 states have call successors, (10493), 2526 states have call predecessors, (10493), 2549 states have return successors, (10676), 10386 states have call predecessors, (10676), 10492 states have call successors, (10676) [2021-11-20 05:50:42,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43440 states to 43440 states and 61103 transitions. [2021-11-20 05:50:42,799 INFO L78 Accepts]: Start accepts. Automaton has 43440 states and 61103 transitions. Word has length 616 [2021-11-20 05:50:42,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:50:42,801 INFO L470 AbstractCegarLoop]: Abstraction has 43440 states and 61103 transitions. [2021-11-20 05:50:42,801 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 3 states have call successors, (68), 3 states have call predecessors, (68), 3 states have return successors, (66), 3 states have call predecessors, (66), 3 states have call successors, (66) [2021-11-20 05:50:42,801 INFO L276 IsEmpty]: Start isEmpty. Operand 43440 states and 61103 transitions. [2021-11-20 05:50:42,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 641 [2021-11-20 05:50:42,909 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:50:42,909 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:50:42,945 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b27e74f-0358-4c62-adff-663e23067523/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-11-20 05:50:43,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b27e74f-0358-4c62-adff-663e23067523/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-11-20 05:50:43,123 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:50:43,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:50:43,124 INFO L85 PathProgramCache]: Analyzing trace with hash -2073396572, now seen corresponding path program 1 times [2021-11-20 05:50:43,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:50:43,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383889634] [2021-11-20 05:50:43,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:50:43,124 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:50:43,628 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 05:50:43,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1841809836] [2021-11-20 05:50:43,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:50:43,629 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:50:43,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b27e74f-0358-4c62-adff-663e23067523/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:50:43,630 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b27e74f-0358-4c62-adff-663e23067523/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:50:43,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b27e74f-0358-4c62-adff-663e23067523/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-20 05:50:44,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:44,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 5834 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 05:50:44,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:50:46,014 INFO L134 CoverageAnalysis]: Checked inductivity of 912 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 838 trivial. 0 not checked. [2021-11-20 05:50:46,014 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 05:50:46,015 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:50:46,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383889634] [2021-11-20 05:50:46,015 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 05:50:46,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1841809836] [2021-11-20 05:50:46,015 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1841809836] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:50:46,016 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:50:46,016 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 05:50:46,016 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357124007] [2021-11-20 05:50:46,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:50:46,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:50:46,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:50:46,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:50:46,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:50:46,018 INFO L87 Difference]: Start difference. First operand 43440 states and 61103 transitions. Second operand has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 2 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) [2021-11-20 05:50:48,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:50:48,242 INFO L93 Difference]: Finished difference Result 100584 states and 141577 transitions. [2021-11-20 05:50:48,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:50:48,243 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 2 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) Word has length 640 [2021-11-20 05:50:48,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:50:48,464 INFO L225 Difference]: With dead ends: 100584 [2021-11-20 05:50:48,464 INFO L226 Difference]: Without dead ends: 57189 [2021-11-20 05:50:48,596 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 639 GetRequests, 638 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:50:48,596 INFO L933 BasicCegarLoop]: 4300 mSDtfsCounter, 3245 mSDsluCounter, 3509 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3245 SdHoareTripleChecker+Valid, 7809 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 05:50:48,598 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3245 Valid, 7809 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 05:50:48,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57189 states. [2021-11-20 05:50:50,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57189 to 56954. [2021-11-20 05:50:50,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56954 states, 39915 states have (on average 1.3176750595014406) internal successors, (52595), 40463 states have internal predecessors, (52595), 13666 states have call successors, (13666), 3341 states have call predecessors, (13666), 3372 states have return successors, (13897), 13521 states have call predecessors, (13897), 13665 states have call successors, (13897) [2021-11-20 05:50:51,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56954 states to 56954 states and 80158 transitions. [2021-11-20 05:50:51,122 INFO L78 Accepts]: Start accepts. Automaton has 56954 states and 80158 transitions. Word has length 640 [2021-11-20 05:50:51,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:50:51,123 INFO L470 AbstractCegarLoop]: Abstraction has 56954 states and 80158 transitions. [2021-11-20 05:50:51,123 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 2 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) [2021-11-20 05:50:51,123 INFO L276 IsEmpty]: Start isEmpty. Operand 56954 states and 80158 transitions. [2021-11-20 05:50:51,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 671 [2021-11-20 05:50:51,231 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:50:51,231 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:50:51,262 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b27e74f-0358-4c62-adff-663e23067523/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-11-20 05:50:51,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b27e74f-0358-4c62-adff-663e23067523/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-20 05:50:51,439 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:50:51,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:50:51,440 INFO L85 PathProgramCache]: Analyzing trace with hash -57993256, now seen corresponding path program 1 times [2021-11-20 05:50:51,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:50:51,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931443913] [2021-11-20 05:50:51,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:50:51,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:50:51,749 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 05:50:51,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [677009101] [2021-11-20 05:50:51,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:50:51,750 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:50:51,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b27e74f-0358-4c62-adff-663e23067523/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:50:51,751 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b27e74f-0358-4c62-adff-663e23067523/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:50:51,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b27e74f-0358-4c62-adff-663e23067523/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-20 05:50:53,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:53,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 5940 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 05:50:53,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:50:54,576 INFO L134 CoverageAnalysis]: Checked inductivity of 989 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 912 trivial. 0 not checked. [2021-11-20 05:50:54,576 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 05:50:54,576 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:50:54,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931443913] [2021-11-20 05:50:54,577 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 05:50:54,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [677009101] [2021-11-20 05:50:54,577 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [677009101] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:50:54,577 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:50:54,577 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 05:50:54,577 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412284141] [2021-11-20 05:50:54,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:50:54,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:50:54,579 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:50:54,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:50:54,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:50:54,579 INFO L87 Difference]: Start difference. First operand 56954 states and 80158 transitions. Second operand has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 2 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) [2021-11-20 05:50:56,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:50:56,854 INFO L93 Difference]: Finished difference Result 114098 states and 160536 transitions. [2021-11-20 05:50:56,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:50:56,855 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 2 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) Word has length 670 [2021-11-20 05:50:56,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:50:57,307 INFO L225 Difference]: With dead ends: 114098 [2021-11-20 05:50:57,307 INFO L226 Difference]: Without dead ends: 57189 [2021-11-20 05:50:57,442 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 669 GetRequests, 668 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:50:57,443 INFO L933 BasicCegarLoop]: 6808 mSDtfsCounter, 3540 mSDsluCounter, 3204 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3540 SdHoareTripleChecker+Valid, 10012 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 05:50:57,443 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3540 Valid, 10012 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 05:50:57,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57189 states. [2021-11-20 05:50:59,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57189 to 56954. [2021-11-20 05:50:59,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56954 states, 39915 states have (on average 1.3130652636853313) internal successors, (52411), 40463 states have internal predecessors, (52411), 13666 states have call successors, (13666), 3341 states have call predecessors, (13666), 3372 states have return successors, (13897), 13521 states have call predecessors, (13897), 13665 states have call successors, (13897) [2021-11-20 05:51:00,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56954 states to 56954 states and 79974 transitions. [2021-11-20 05:51:00,124 INFO L78 Accepts]: Start accepts. Automaton has 56954 states and 79974 transitions. Word has length 670 [2021-11-20 05:51:00,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:51:00,125 INFO L470 AbstractCegarLoop]: Abstraction has 56954 states and 79974 transitions. [2021-11-20 05:51:00,125 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 2 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) [2021-11-20 05:51:00,125 INFO L276 IsEmpty]: Start isEmpty. Operand 56954 states and 79974 transitions. [2021-11-20 05:51:00,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 693 [2021-11-20 05:51:00,227 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:51:00,228 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 7, 7, 7, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:51:00,272 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b27e74f-0358-4c62-adff-663e23067523/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-11-20 05:51:00,442 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b27e74f-0358-4c62-adff-663e23067523/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:51:00,443 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:51:00,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:51:00,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1151728871, now seen corresponding path program 1 times [2021-11-20 05:51:00,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:51:00,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106701151] [2021-11-20 05:51:00,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:51:00,444 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:51:00,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:51:01,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:51:01,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:51:01,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 05:51:01,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:51:01,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:51:01,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 05:51:01,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:51:01,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:51:01,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-20 05:51:01,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:51:01,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:51:01,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-20 05:51:01,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:51:01,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-20 05:51:01,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:51:01,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-11-20 05:51:01,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:51:01,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-11-20 05:51:01,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:51:01,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-11-20 05:51:01,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:51:01,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-20 05:51:01,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:51:01,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-20 05:51:01,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:51:01,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:51:01,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-20 05:51:01,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:51:01,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:51:01,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-20 05:51:01,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:51:01,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:51:01,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-11-20 05:51:01,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:51:01,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:51:01,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-11-20 05:51:01,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:51:01,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:51:01,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-11-20 05:51:01,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-20 05:51:01,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2021-11-20 05:51:01,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2021-11-20 05:51:01,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-11-20 05:51:01,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2021-11-20 05:51:01,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2021-11-20 05:51:01,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2021-11-20 05:51:01,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2021-11-20 05:51:01,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2021-11-20 05:51:01,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2021-11-20 05:51:01,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2021-11-20 05:51:01,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2021-11-20 05:51:01,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2021-11-20 05:51:01,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2021-11-20 05:51:01,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2021-11-20 05:51:01,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2021-11-20 05:51:01,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2021-11-20 05:51:01,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2021-11-20 05:51:01,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2021-11-20 05:51:01,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:51:01,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-20 05:51:01,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 05:51:01,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-20 05:51:01,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 421 [2021-11-20 05:51:01,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 435 [2021-11-20 05:51:01,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 442 [2021-11-20 05:51:01,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 448 [2021-11-20 05:51:01,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 453 [2021-11-20 05:51:01,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 457 [2021-11-20 05:51:01,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2021-11-20 05:51:01,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 467 [2021-11-20 05:51:01,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2021-11-20 05:51:01,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 478 [2021-11-20 05:51:01,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:51:01,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:51:01,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 497 [2021-11-20 05:51:01,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:51:01,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:51:01,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2021-11-20 05:51:01,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 559 [2021-11-20 05:51:01,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:02,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 564 [2021-11-20 05:51:02,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:02,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 590 [2021-11-20 05:51:02,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:02,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 595 [2021-11-20 05:51:02,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:02,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2021-11-20 05:51:02,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:02,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2021-11-20 05:51:02,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:02,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 613 [2021-11-20 05:51:02,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:02,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:51:02,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:02,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 630 [2021-11-20 05:51:02,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:02,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 639 [2021-11-20 05:51:02,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:02,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 05:51:02,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:02,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 656 [2021-11-20 05:51:02,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:02,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 664 [2021-11-20 05:51:02,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:02,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:51:02,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:02,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 677 [2021-11-20 05:51:02,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:02,280 INFO L134 CoverageAnalysis]: Checked inductivity of 947 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 923 trivial. 0 not checked. [2021-11-20 05:51:02,281 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:51:02,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106701151] [2021-11-20 05:51:02,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106701151] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:51:02,281 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:51:02,282 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-20 05:51:02,284 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97322777] [2021-11-20 05:51:02,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:51:02,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 05:51:02,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:51:02,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 05:51:02,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-11-20 05:51:02,287 INFO L87 Difference]: Start difference. First operand 56954 states and 79974 transitions. Second operand has 9 states, 9 states have (on average 34.55555555555556) internal successors, (311), 4 states have internal predecessors, (311), 2 states have call successors, (72), 7 states have call predecessors, (72), 1 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) [2021-11-20 05:51:09,761 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:51:11,974 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:51:14,001 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:51:20,414 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:51:22,464 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:51:23,761 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:51:25,786 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:51:29,395 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:51:34,069 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:51:39,369 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:51:44,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:51:44,019 INFO L93 Difference]: Finished difference Result 153998 states and 226429 transitions. [2021-11-20 05:51:44,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 05:51:44,021 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 34.55555555555556) internal successors, (311), 4 states have internal predecessors, (311), 2 states have call successors, (72), 7 states have call predecessors, (72), 1 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) Word has length 692 [2021-11-20 05:51:44,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:51:44,447 INFO L225 Difference]: With dead ends: 153998 [2021-11-20 05:51:44,447 INFO L226 Difference]: Without dead ends: 97089 [2021-11-20 05:51:44,836 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:51:44,837 INFO L933 BasicCegarLoop]: 5045 mSDtfsCounter, 4570 mSDsluCounter, 16273 mSDsCounter, 0 mSdLazyCounter, 9248 mSolverCounterSat, 1808 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5206 SdHoareTripleChecker+Valid, 21318 SdHoareTripleChecker+Invalid, 11061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1808 IncrementalHoareTripleChecker+Valid, 9248 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.6s IncrementalHoareTripleChecker+Time [2021-11-20 05:51:44,837 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5206 Valid, 21318 Invalid, 11061 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1808 Valid, 9248 Invalid, 5 Unknown, 0 Unchecked, 37.6s Time] [2021-11-20 05:51:44,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97089 states. [2021-11-20 05:51:47,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97089 to 56986. [2021-11-20 05:51:47,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56986 states, 39947 states have (on average 1.3128144791849201) internal successors, (52443), 40495 states have internal predecessors, (52443), 13666 states have call successors, (13666), 3341 states have call predecessors, (13666), 3372 states have return successors, (13897), 13521 states have call predecessors, (13897), 13665 states have call successors, (13897) [2021-11-20 05:51:47,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56986 states to 56986 states and 80006 transitions. [2021-11-20 05:51:47,963 INFO L78 Accepts]: Start accepts. Automaton has 56986 states and 80006 transitions. Word has length 692 [2021-11-20 05:51:47,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:51:47,964 INFO L470 AbstractCegarLoop]: Abstraction has 56986 states and 80006 transitions. [2021-11-20 05:51:47,964 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 34.55555555555556) internal successors, (311), 4 states have internal predecessors, (311), 2 states have call successors, (72), 7 states have call predecessors, (72), 1 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) [2021-11-20 05:51:47,965 INFO L276 IsEmpty]: Start isEmpty. Operand 56986 states and 80006 transitions. [2021-11-20 05:51:48,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 700 [2021-11-20 05:51:48,104 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:51:48,104 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 7, 7, 7, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:51:48,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-20 05:51:48,105 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:51:48,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:51:48,106 INFO L85 PathProgramCache]: Analyzing trace with hash 677880757, now seen corresponding path program 1 times [2021-11-20 05:51:48,106 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:51:48,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994635506] [2021-11-20 05:51:48,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:51:48,107 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:51:48,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:48,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:51:48,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:48,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:51:48,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:48,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:51:48,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:48,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 05:51:48,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:48,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:51:48,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:48,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:51:48,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:48,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 05:51:48,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:48,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:51:48,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:48,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:51:48,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:48,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-20 05:51:48,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:48,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:51:48,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:48,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:51:48,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:48,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-20 05:51:48,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:48,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:51:48,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:48,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-20 05:51:48,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:48,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:51:48,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:48,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-11-20 05:51:48,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:48,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:51:48,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:48,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-11-20 05:51:48,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:48,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:51:48,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:48,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-11-20 05:51:48,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:48,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:51:48,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:48,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-20 05:51:48,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:48,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:51:48,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:48,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-20 05:51:48,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:48,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:51:48,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:48,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:51:48,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:48,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-20 05:51:48,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:48,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:51:48,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:48,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:51:48,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:48,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-20 05:51:48,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:48,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:51:48,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:48,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:51:48,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:48,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-11-20 05:51:48,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:48,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:51:48,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:48,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:51:48,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:48,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-11-20 05:51:48,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:48,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:51:48,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:48,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:51:48,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:49,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-11-20 05:51:49,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:49,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-20 05:51:49,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:49,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2021-11-20 05:51:49,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:49,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2021-11-20 05:51:49,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:49,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-11-20 05:51:49,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:49,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2021-11-20 05:51:49,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:49,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2021-11-20 05:51:49,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:49,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2021-11-20 05:51:49,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:49,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2021-11-20 05:51:49,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:49,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2021-11-20 05:51:49,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:49,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2021-11-20 05:51:49,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:49,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2021-11-20 05:51:49,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:49,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2021-11-20 05:51:49,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:49,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2021-11-20 05:51:49,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:49,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2021-11-20 05:51:49,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:49,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2021-11-20 05:51:49,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:49,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2021-11-20 05:51:49,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:49,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2021-11-20 05:51:49,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:49,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2021-11-20 05:51:49,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:49,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2021-11-20 05:51:49,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:49,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:51:49,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:49,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-20 05:51:49,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:49,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 05:51:49,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:49,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-20 05:51:49,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:49,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 421 [2021-11-20 05:51:49,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:49,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 433 [2021-11-20 05:51:49,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:49,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 442 [2021-11-20 05:51:49,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:49,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 449 [2021-11-20 05:51:49,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:49,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2021-11-20 05:51:49,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:49,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 460 [2021-11-20 05:51:49,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:49,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 464 [2021-11-20 05:51:49,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:49,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 469 [2021-11-20 05:51:49,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:49,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 474 [2021-11-20 05:51:49,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:49,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 478 [2021-11-20 05:51:49,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:49,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 485 [2021-11-20 05:51:49,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:49,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:51:49,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:49,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:51:49,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:49,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2021-11-20 05:51:49,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:49,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:51:49,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:49,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:51:49,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:49,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 518 [2021-11-20 05:51:49,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:49,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 566 [2021-11-20 05:51:49,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:49,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 571 [2021-11-20 05:51:49,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:49,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 597 [2021-11-20 05:51:49,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:49,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2021-11-20 05:51:49,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:49,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 608 [2021-11-20 05:51:49,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:49,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 614 [2021-11-20 05:51:49,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:49,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 620 [2021-11-20 05:51:49,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:49,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:51:49,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:49,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 637 [2021-11-20 05:51:49,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:49,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 646 [2021-11-20 05:51:49,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:49,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 05:51:49,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:49,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 663 [2021-11-20 05:51:49,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:49,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 671 [2021-11-20 05:51:49,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:49,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:51:49,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:49,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 684 [2021-11-20 05:51:49,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:49,870 INFO L134 CoverageAnalysis]: Checked inductivity of 952 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 911 trivial. 0 not checked. [2021-11-20 05:51:49,871 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:51:49,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994635506] [2021-11-20 05:51:49,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994635506] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:51:49,871 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:51:49,872 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-20 05:51:49,872 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306052325] [2021-11-20 05:51:49,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:51:49,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 05:51:49,873 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:51:49,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 05:51:49,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-11-20 05:51:49,874 INFO L87 Difference]: Start difference. First operand 56986 states and 80006 transitions. Second operand has 9 states, 9 states have (on average 35.888888888888886) internal successors, (323), 4 states have internal predecessors, (323), 2 states have call successors, (73), 7 states have call predecessors, (73), 1 states have return successors, (71), 2 states have call predecessors, (71), 2 states have call successors, (71) [2021-11-20 05:51:58,562 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:52:00,597 WARN L515 Checker$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 05:52:05,064 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:52:07,116 WARN L515 Checker$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 05:52:08,362 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:52:10,387 WARN L515 Checker$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 05:52:11,394 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:52:15,171 WARN L515 Checker$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 05:52:25,615 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:52:27,643 WARN L515 Checker$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 05:52:33,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:52:33,205 INFO L93 Difference]: Finished difference Result 167527 states and 238299 transitions. [2021-11-20 05:52:33,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-20 05:52:33,206 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 35.888888888888886) internal successors, (323), 4 states have internal predecessors, (323), 2 states have call successors, (73), 7 states have call predecessors, (73), 1 states have return successors, (71), 2 states have call predecessors, (71), 2 states have call successors, (71) Word has length 699 [2021-11-20 05:52:33,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:52:33,910 INFO L225 Difference]: With dead ends: 167527 [2021-11-20 05:52:33,910 INFO L226 Difference]: Without dead ends: 110586 [2021-11-20 05:52:34,050 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2021-11-20 05:52:34,051 INFO L933 BasicCegarLoop]: 6332 mSDtfsCounter, 6076 mSDsluCounter, 15552 mSDsCounter, 0 mSdLazyCounter, 9226 mSolverCounterSat, 4502 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6522 SdHoareTripleChecker+Valid, 21884 SdHoareTripleChecker+Invalid, 13735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4502 IncrementalHoareTripleChecker+Valid, 9226 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:52:34,055 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6522 Valid, 21884 Invalid, 13735 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4502 Valid, 9226 Invalid, 7 Unknown, 0 Unchecked, 39.0s Time] [2021-11-20 05:52:34,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110586 states. [2021-11-20 05:52:38,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110586 to 97354. [2021-11-20 05:52:38,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97354 states, 68367 states have (on average 1.3150204045811575) internal successors, (89904), 69297 states have internal predecessors, (89904), 23233 states have call successors, (23233), 5706 states have call predecessors, (23233), 5753 states have return successors, (23632), 22978 states have call predecessors, (23632), 23232 states have call successors, (23632) [2021-11-20 05:52:38,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97354 states to 97354 states and 136769 transitions. [2021-11-20 05:52:38,875 INFO L78 Accepts]: Start accepts. Automaton has 97354 states and 136769 transitions. Word has length 699 [2021-11-20 05:52:38,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:52:38,877 INFO L470 AbstractCegarLoop]: Abstraction has 97354 states and 136769 transitions. [2021-11-20 05:52:38,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 35.888888888888886) internal successors, (323), 4 states have internal predecessors, (323), 2 states have call successors, (73), 7 states have call predecessors, (73), 1 states have return successors, (71), 2 states have call predecessors, (71), 2 states have call successors, (71) [2021-11-20 05:52:38,877 INFO L276 IsEmpty]: Start isEmpty. Operand 97354 states and 136769 transitions. [2021-11-20 05:52:39,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 711 [2021-11-20 05:52:39,069 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:52:39,069 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 7, 7, 7, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:52:39,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-20 05:52:39,070 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:52:39,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:52:39,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1069615531, now seen corresponding path program 1 times [2021-11-20 05:52:39,071 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:52:39,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635067820] [2021-11-20 05:52:39,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:52:39,071 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:52:39,294 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 05:52:39,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1854865367] [2021-11-20 05:52:39,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:52:39,295 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:52:39,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b27e74f-0358-4c62-adff-663e23067523/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:52:39,299 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b27e74f-0358-4c62-adff-663e23067523/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:52:39,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b27e74f-0358-4c62-adff-663e23067523/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process