./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--intel--igbvf--igbvf.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f05623e-384a-4b21-8a36-e1bd2e88959c/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f05623e-384a-4b21-8a36-e1bd2e88959c/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f05623e-384a-4b21-8a36-e1bd2e88959c/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f05623e-384a-4b21-8a36-e1bd2e88959c/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--intel--igbvf--igbvf.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f05623e-384a-4b21-8a36-e1bd2e88959c/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f05623e-384a-4b21-8a36-e1bd2e88959c/bin/uautomizer-YU5uOKAj3y --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 29069a6562e86cf14ec2af6e66fde431300c67391fef8a4bef75c88d837db303 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 17:34:29,233 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 17:34:29,237 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 17:34:29,295 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 17:34:29,295 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 17:34:29,299 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 17:34:29,301 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 17:34:29,305 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 17:34:29,308 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 17:34:29,313 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 17:34:29,314 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 17:34:29,317 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 17:34:29,317 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 17:34:29,320 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 17:34:29,322 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 17:34:29,327 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 17:34:29,328 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 17:34:29,330 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 17:34:29,336 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 17:34:29,343 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 17:34:29,345 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 17:34:29,347 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 17:34:29,350 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 17:34:29,351 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 17:34:29,359 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 17:34:29,360 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 17:34:29,361 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 17:34:29,363 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 17:34:29,363 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 17:34:29,365 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 17:34:29,365 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 17:34:29,366 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 17:34:29,368 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 17:34:29,369 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 17:34:29,371 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 17:34:29,371 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 17:34:29,372 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 17:34:29,372 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 17:34:29,372 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 17:34:29,373 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 17:34:29,374 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 17:34:29,375 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f05623e-384a-4b21-8a36-e1bd2e88959c/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-13 17:34:29,417 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 17:34:29,418 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 17:34:29,418 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 17:34:29,419 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 17:34:29,426 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 17:34:29,427 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 17:34:29,427 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 17:34:29,428 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 17:34:29,428 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 17:34:29,428 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 17:34:29,430 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 17:34:29,430 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 17:34:29,430 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 17:34:29,430 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 17:34:29,431 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 17:34:29,431 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 17:34:29,431 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 17:34:29,432 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 17:34:29,432 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 17:34:29,432 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 17:34:29,432 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 17:34:29,433 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 17:34:29,433 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 17:34:29,433 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 17:34:29,434 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 17:34:29,434 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 17:34:29,434 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 17:34:29,434 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-13 17:34:29,435 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-13 17:34:29,435 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 17:34:29,435 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 17:34:29,436 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_4f05623e-384a-4b21-8a36-e1bd2e88959c/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f05623e-384a-4b21-8a36-e1bd2e88959c/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29069a6562e86cf14ec2af6e66fde431300c67391fef8a4bef75c88d837db303 [2021-11-13 17:34:29,725 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 17:34:29,747 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 17:34:29,749 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 17:34:29,751 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 17:34:29,751 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 17:34:29,753 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f05623e-384a-4b21-8a36-e1bd2e88959c/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--intel--igbvf--igbvf.ko-entry_point.cil.out.i [2021-11-13 17:34:29,818 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f05623e-384a-4b21-8a36-e1bd2e88959c/bin/uautomizer-YU5uOKAj3y/data/7e1577584/f7f1d6bbd72f48929183e784b040d4cc/FLAG5f1c59599 [2021-11-13 17:34:30,812 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 17:34:30,812 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f05623e-384a-4b21-8a36-e1bd2e88959c/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--intel--igbvf--igbvf.ko-entry_point.cil.out.i [2021-11-13 17:34:30,876 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f05623e-384a-4b21-8a36-e1bd2e88959c/bin/uautomizer-YU5uOKAj3y/data/7e1577584/f7f1d6bbd72f48929183e784b040d4cc/FLAG5f1c59599 [2021-11-13 17:34:31,158 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f05623e-384a-4b21-8a36-e1bd2e88959c/bin/uautomizer-YU5uOKAj3y/data/7e1577584/f7f1d6bbd72f48929183e784b040d4cc [2021-11-13 17:34:31,161 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 17:34:31,162 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 17:34:31,164 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 17:34:31,164 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 17:34:31,167 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 17:34:31,168 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:34:31" (1/1) ... [2021-11-13 17:34:31,169 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3262246c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:34:31, skipping insertion in model container [2021-11-13 17:34:31,170 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:34:31" (1/1) ... [2021-11-13 17:34:31,177 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 17:34:31,333 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 17:34:32,281 WARN L228 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_4f05623e-384a-4b21-8a36-e1bd2e88959c/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--intel--igbvf--igbvf.ko-entry_point.cil.out.i[183631,183644] [2021-11-13 17:34:35,217 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:34:35,305 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 17:34:35,470 WARN L228 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_4f05623e-384a-4b21-8a36-e1bd2e88959c/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--intel--igbvf--igbvf.ko-entry_point.cil.out.i[183631,183644] [2021-11-13 17:34:35,873 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:34:36,182 INFO L208 MainTranslator]: Completed translation [2021-11-13 17:34:36,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:34:36 WrapperNode [2021-11-13 17:34:36,184 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 17:34:36,186 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 17:34:36,186 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 17:34:36,186 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 17:34:36,194 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:34:36" (1/1) ... [2021-11-13 17:34:36,369 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:34:36" (1/1) ... [2021-11-13 17:34:36,665 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 17:34:36,665 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 17:34:36,666 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 17:34:36,666 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 17:34:36,675 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:34:36" (1/1) ... [2021-11-13 17:34:36,675 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:34:36" (1/1) ... [2021-11-13 17:34:36,748 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:34:36" (1/1) ... [2021-11-13 17:34:36,749 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:34:36" (1/1) ... [2021-11-13 17:34:37,036 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:34:36" (1/1) ... [2021-11-13 17:34:37,083 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:34:36" (1/1) ... [2021-11-13 17:34:37,138 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:34:36" (1/1) ... [2021-11-13 17:34:37,199 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 17:34:37,201 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 17:34:37,202 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 17:34:37,202 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 17:34:37,203 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:34:36" (1/1) ... [2021-11-13 17:34:37,212 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 17:34:37,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f05623e-384a-4b21-8a36-e1bd2e88959c/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:34:37,237 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f05623e-384a-4b21-8a36-e1bd2e88959c/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 17:34:37,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f05623e-384a-4b21-8a36-e1bd2e88959c/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 17:34:37,291 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2021-11-13 17:34:37,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2021-11-13 17:34:37,292 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-13 17:34:37,292 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-13 17:34:37,292 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-13 17:34:37,292 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-13 17:34:37,292 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-13 17:34:37,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-13 17:34:37,293 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2021-11-13 17:34:37,293 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2021-11-13 17:34:37,293 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_function_pointers_vf [2021-11-13 17:34:37,293 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_function_pointers_vf [2021-11-13 17:34:37,293 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2021-11-13 17:34:37,293 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2021-11-13 17:34:37,294 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-13 17:34:37,294 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-13 17:34:37,294 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-13 17:34:37,294 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-13 17:34:37,294 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-13 17:34:37,295 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-13 17:34:37,295 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_alloc_rx_buffers [2021-11-13 17:34:37,295 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_alloc_rx_buffers [2021-11-13 17:34:37,295 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-13 17:34:37,295 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-13 17:34:37,295 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_mac_addr_vf [2021-11-13 17:34:37,296 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_mac_addr_vf [2021-11-13 17:34:37,296 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-13 17:34:37,296 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-13 17:34:37,296 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset_hw_vf [2021-11-13 17:34:37,296 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset_hw_vf [2021-11-13 17:34:37,296 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_maybe_stop_tx [2021-11-13 17:34:37,297 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_maybe_stop_tx [2021-11-13 17:34:37,297 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_set_mac [2021-11-13 17:34:37,297 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_set_mac [2021-11-13 17:34:37,297 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-13 17:34:37,297 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-13 17:34:37,297 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-13 17:34:37,298 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-13 17:34:37,298 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-13 17:34:37,298 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-13 17:34:37,298 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_clean_tx_irq [2021-11-13 17:34:37,298 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_clean_tx_irq [2021-11-13 17:34:37,299 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2021-11-13 17:34:37,299 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-11-13 17:34:37,299 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-11-13 17:34:37,299 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_suspend [2021-11-13 17:34:37,299 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_suspend [2021-11-13 17:34:37,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 17:34:37,300 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_ioctl [2021-11-13 17:34:37,300 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_ioctl [2021-11-13 17:34:37,300 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-13 17:34:37,300 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-13 17:34:37,300 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2021-11-13 17:34:37,300 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2021-11-13 17:34:37,301 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-11-13 17:34:37,301 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-11-13 17:34:37,301 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-13 17:34:37,301 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-13 17:34:37,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-13 17:34:37,301 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_assign_vector [2021-11-13 17:34:37,302 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_assign_vector [2021-11-13 17:34:37,302 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-13 17:34:37,302 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-13 17:34:37,302 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-13 17:34:37,302 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-13 17:34:37,303 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_change_mtu [2021-11-13 17:34:37,303 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_change_mtu [2021-11-13 17:34:37,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-13 17:34:37,305 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_desc_unused [2021-11-13 17:34:37,305 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_desc_unused [2021-11-13 17:34:37,305 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_4 [2021-11-13 17:34:37,306 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_4 [2021-11-13 17:34:37,306 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_io_error_detected [2021-11-13 17:34:37,306 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_io_error_detected [2021-11-13 17:34:37,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-13 17:34:37,307 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_netpoll [2021-11-13 17:34:37,307 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_netpoll [2021-11-13 17:34:37,307 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-13 17:34:37,307 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-13 17:34:37,307 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2021-11-13 17:34:37,308 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2021-11-13 17:34:37,308 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_reset_interrupt_capability [2021-11-13 17:34:37,308 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_reset_interrupt_capability [2021-11-13 17:34:37,308 INFO L130 BoogieDeclarations]: Found specification of procedure vzalloc [2021-11-13 17:34:37,308 INFO L138 BoogieDeclarations]: Found implementation of procedure vzalloc [2021-11-13 17:34:37,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-13 17:34:37,308 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-13 17:34:37,308 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_msg_vf [2021-11-13 17:34:37,309 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_msg_vf [2021-11-13 17:34:37,309 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2021-11-13 17:34:37,309 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2021-11-13 17:34:37,310 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_free_tx_resources [2021-11-13 17:34:37,310 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_free_tx_resources [2021-11-13 17:34:37,310 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_offset [2021-11-13 17:34:37,310 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_offset [2021-11-13 17:34:37,310 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_3 [2021-11-13 17:34:37,310 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_3 [2021-11-13 17:34:37,311 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2021-11-13 17:34:37,311 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2021-11-13 17:34:37,312 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-13 17:34:37,312 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-13 17:34:37,313 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2021-11-13 17:34:37,313 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2021-11-13 17:34:37,313 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2021-11-13 17:34:37,313 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2021-11-13 17:34:37,313 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u16 [2021-11-13 17:34:37,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 17:34:37,313 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_4 [2021-11-13 17:34:37,314 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_4 [2021-11-13 17:34:37,314 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-11-13 17:34:37,314 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-11-13 17:34:37,314 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_configure_msix [2021-11-13 17:34:37,314 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_configure_msix [2021-11-13 17:34:37,315 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-13 17:34:37,315 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-13 17:34:37,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 17:34:37,315 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2021-11-13 17:34:37,315 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2021-11-13 17:34:37,316 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_reset [2021-11-13 17:34:37,316 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_reset [2021-11-13 17:34:37,319 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_posted_mbx [2021-11-13 17:34:37,319 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_posted_mbx [2021-11-13 17:34:37,319 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-13 17:34:37,320 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-13 17:34:37,320 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_irq_enable [2021-11-13 17:34:37,322 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_irq_enable [2021-11-13 17:34:37,322 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-13 17:34:37,322 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-13 17:34:37,322 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-13 17:34:37,328 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-13 17:34:37,328 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_reinit_locked [2021-11-13 17:34:37,328 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_reinit_locked [2021-11-13 17:34:37,328 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-13 17:34:37,328 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-13 17:34:37,328 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_update_stats [2021-11-13 17:34:37,328 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_update_stats [2021-11-13 17:34:37,329 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_vlan_rx_add_vid [2021-11-13 17:34:37,329 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_vlan_rx_add_vid [2021-11-13 17:34:37,329 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-13 17:34:37,329 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-13 17:34:37,329 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-13 17:34:37,329 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-13 17:34:37,329 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_bit_vf [2021-11-13 17:34:37,329 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_bit_vf [2021-11-13 17:34:37,329 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_hw_vf [2021-11-13 17:34:37,330 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_hw_vf [2021-11-13 17:34:37,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 17:34:37,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 17:34:37,330 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2021-11-13 17:34:37,330 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2021-11-13 17:34:37,330 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_poll_for_ack [2021-11-13 17:34:37,330 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_poll_for_ack [2021-11-13 17:34:37,330 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-13 17:34:37,331 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-13 17:34:37,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-13 17:34:37,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-13 17:34:37,331 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-13 17:34:37,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-13 17:34:37,331 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-13 17:34:37,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-13 17:34:37,331 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_rar_set_vf [2021-11-13 17:34:37,331 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_rar_set_vf [2021-11-13 17:34:37,332 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-11-13 17:34:37,332 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-11-13 17:34:37,332 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-13 17:34:37,332 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-13 17:34:37,332 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-13 17:34:37,332 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-13 17:34:37,332 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_down [2021-11-13 17:34:37,332 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_down [2021-11-13 17:34:37,333 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_get_regs_len [2021-11-13 17:34:37,333 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_get_regs_len [2021-11-13 17:34:37,333 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_6 [2021-11-13 17:34:37,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_6 [2021-11-13 17:34:37,333 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-13 17:34:37,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-13 17:34:37,333 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_free_irq [2021-11-13 17:34:37,333 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_free_irq [2021-11-13 17:34:37,333 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2021-11-13 17:34:37,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2021-11-13 17:34:37,334 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-11-13 17:34:37,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-11-13 17:34:37,334 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_link_vf [2021-11-13 17:34:37,334 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_link_vf [2021-11-13 17:34:37,334 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-13 17:34:37,334 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-13 17:34:37,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-13 17:34:37,335 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-13 17:34:37,335 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-13 17:34:37,335 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-13 17:34:37,335 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-13 17:34:37,335 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-13 17:34:37,335 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_clean_tx_ring [2021-11-13 17:34:37,335 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_clean_tx_ring [2021-11-13 17:34:37,335 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_v2p_mailbox [2021-11-13 17:34:37,335 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_v2p_mailbox [2021-11-13 17:34:37,336 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_3 [2021-11-13 17:34:37,336 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_3 [2021-11-13 17:34:37,336 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-11-13 17:34:37,336 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-11-13 17:34:37,336 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-11-13 17:34:37,336 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-11-13 17:34:37,336 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-11-13 17:34:37,339 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-11-13 17:34:37,339 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_4 [2021-11-13 17:34:37,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_4 [2021-11-13 17:34:37,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 17:34:37,339 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-13 17:34:37,339 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-13 17:34:37,339 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_remove [2021-11-13 17:34:37,340 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_remove [2021-11-13 17:34:37,340 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-11-13 17:34:37,340 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-11-13 17:34:37,340 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-13 17:34:37,340 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-13 17:34:37,340 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_irq_disable [2021-11-13 17:34:37,340 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_irq_disable [2021-11-13 17:34:37,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 17:34:37,340 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2021-11-13 17:34:37,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2021-11-13 17:34:37,341 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_io_slot_reset [2021-11-13 17:34:37,341 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_io_slot_reset [2021-11-13 17:34:37,341 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_configure [2021-11-13 17:34:37,341 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_configure [2021-11-13 17:34:37,341 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_setup_rx_resources [2021-11-13 17:34:37,341 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_setup_rx_resources [2021-11-13 17:34:37,341 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_clean_rx_ring [2021-11-13 17:34:37,341 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_clean_rx_ring [2021-11-13 17:34:37,342 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~~s32~0 [2021-11-13 17:34:37,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~~s32~0 [2021-11-13 17:34:37,342 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_obtain_mbx_lock_vf [2021-11-13 17:34:37,342 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_obtain_mbx_lock_vf [2021-11-13 17:34:37,342 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2021-11-13 17:34:37,342 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2021-11-13 17:34:37,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-13 17:34:37,342 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_ack_vf [2021-11-13 17:34:37,343 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_ack_vf [2021-11-13 17:34:37,343 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-13 17:34:37,343 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-13 17:34:37,343 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-11-13 17:34:37,343 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-11-13 17:34:37,343 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-13 17:34:37,343 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-13 17:34:37,343 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_request_irq [2021-11-13 17:34:37,343 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_request_irq [2021-11-13 17:34:37,344 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-13 17:34:37,345 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-13 17:34:37,349 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-13 17:34:37,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-13 17:34:37,349 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_put_txbuf [2021-11-13 17:34:37,349 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_put_txbuf [2021-11-13 17:34:37,349 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~u16~0~TO~~s32~0 [2021-11-13 17:34:37,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~u16~0~TO~~s32~0 [2021-11-13 17:34:37,349 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_poll_for_msg [2021-11-13 17:34:37,349 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_poll_for_msg [2021-11-13 17:34:37,349 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_array [2021-11-13 17:34:37,350 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_array [2021-11-13 17:34:37,350 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-11-13 17:34:37,351 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-11-13 17:34:37,351 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-13 17:34:37,351 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-13 17:34:37,351 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-13 17:34:37,351 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-13 17:34:37,351 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_shutdown [2021-11-13 17:34:37,351 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_shutdown [2021-11-13 17:34:37,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2021-11-13 17:34:37,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2021-11-13 17:34:37,351 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-13 17:34:37,352 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-13 17:34:37,352 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_4 [2021-11-13 17:34:37,352 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_4 [2021-11-13 17:34:37,352 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2021-11-13 17:34:37,352 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2021-11-13 17:34:37,352 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_setup_tx_resources [2021-11-13 17:34:37,352 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_setup_tx_resources [2021-11-13 17:34:37,352 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-13 17:34:37,352 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-13 17:34:37,353 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_get_eeprom_len [2021-11-13 17:34:37,353 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_get_eeprom_len [2021-11-13 17:34:37,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-13 17:34:37,353 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_get_stats [2021-11-13 17:34:37,353 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_get_stats [2021-11-13 17:34:37,353 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u16~0~X~~bool~0~TO~~s32~0 [2021-11-13 17:34:37,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u16~0~X~~bool~0~TO~~s32~0 [2021-11-13 17:34:37,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-13 17:34:37,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-13 17:34:37,353 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_vlan_rx_kill_vid [2021-11-13 17:34:37,354 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_vlan_rx_kill_vid [2021-11-13 17:34:37,354 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device_mem [2021-11-13 17:34:37,354 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device_mem [2021-11-13 17:34:37,354 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-13 17:34:37,354 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-13 17:34:37,354 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-13 17:34:37,354 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-13 17:34:37,354 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2021-11-13 17:34:37,354 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2021-11-13 17:34:37,355 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_io_resume [2021-11-13 17:34:37,355 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_io_resume [2021-11-13 17:34:37,355 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-11-13 17:34:37,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-11-13 17:34:37,355 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_3 [2021-11-13 17:34:37,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_3 [2021-11-13 17:34:37,355 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_2 [2021-11-13 17:34:37,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_2 [2021-11-13 17:34:37,355 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_free_rx_resources [2021-11-13 17:34:37,355 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_free_rx_resources [2021-11-13 17:34:37,356 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_set_features [2021-11-13 17:34:37,356 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_set_features [2021-11-13 17:34:37,356 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_set_multi [2021-11-13 17:34:37,356 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_set_multi [2021-11-13 17:34:37,356 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_tx_timeout [2021-11-13 17:34:37,356 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_tx_timeout [2021-11-13 17:34:37,356 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-13 17:34:37,356 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-13 17:34:37,356 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-13 17:34:37,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-13 17:34:37,357 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_posted_mbx [2021-11-13 17:34:37,357 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_posted_mbx [2021-11-13 17:34:37,357 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2021-11-13 17:34:37,357 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2021-11-13 17:34:37,357 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_up [2021-11-13 17:34:37,357 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_up [2021-11-13 17:34:37,357 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-13 17:34:37,357 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-13 17:34:37,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 17:34:37,358 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2021-11-13 17:34:37,358 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2021-11-13 17:34:37,358 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-13 17:34:39,019 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-13 17:34:49,822 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 17:34:49,823 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-13 17:34:49,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:34:49 BoogieIcfgContainer [2021-11-13 17:34:49,830 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 17:34:49,832 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 17:34:49,832 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 17:34:49,835 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 17:34:49,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 05:34:31" (1/3) ... [2021-11-13 17:34:49,836 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d533207 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:34:49, skipping insertion in model container [2021-11-13 17:34:49,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:34:36" (2/3) ... [2021-11-13 17:34:49,837 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d533207 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:34:49, skipping insertion in model container [2021-11-13 17:34:49,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:34:49" (3/3) ... [2021-11-13 17:34:49,838 INFO L111 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--intel--igbvf--igbvf.ko-entry_point.cil.out.i [2021-11-13 17:34:49,844 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 17:34:49,844 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 17:34:49,904 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 17:34:49,911 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 [2021-11-13 17:34:49,912 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 17:34:49,987 INFO L276 IsEmpty]: Start isEmpty. Operand has 2793 states, 1928 states have (on average 1.320539419087137) internal successors, (2546), 1988 states have internal predecessors, (2546), 709 states have call successors, (709), 155 states have call predecessors, (709), 154 states have return successors, (694), 680 states have call predecessors, (694), 694 states have call successors, (694) [2021-11-13 17:34:50,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-13 17:34:50,004 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:34:50,005 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:34:50,005 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:34:50,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:34:50,011 INFO L85 PathProgramCache]: Analyzing trace with hash -1350737997, now seen corresponding path program 1 times [2021-11-13 17:34:50,019 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:34:50,020 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630379320] [2021-11-13 17:34:50,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:34:50,021 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:34:50,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:50,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:34:50,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:50,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-13 17:34:50,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:50,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 17:34:50,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:50,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-13 17:34:50,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:51,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-13 17:34:51,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:51,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-13 17:34:51,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:51,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-13 17:34:51,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:51,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-13 17:34:51,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:51,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-13 17:34:51,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:51,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 17:34:51,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:51,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-13 17:34:51,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:51,166 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-11-13 17:34:51,167 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:34:51,167 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630379320] [2021-11-13 17:34:51,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630379320] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:34:51,168 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:34:51,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 17:34:51,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509424278] [2021-11-13 17:34:51,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:34:51,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 17:34:51,174 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:34:51,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 17:34:51,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:34:51,208 INFO L87 Difference]: Start difference. First operand has 2793 states, 1928 states have (on average 1.320539419087137) internal successors, (2546), 1988 states have internal predecessors, (2546), 709 states have call successors, (709), 155 states have call predecessors, (709), 154 states have return successors, (694), 680 states have call predecessors, (694), 694 states have call successors, (694) Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2021-11-13 17:34:53,303 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:34:55,173 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:34:59,474 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:35:08,858 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 [] [2021-11-13 17:35:17,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:35:17,619 INFO L93 Difference]: Finished difference Result 9158 states and 13449 transitions. [2021-11-13 17:35:17,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 17:35:17,621 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 91 [2021-11-13 17:35:17,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:35:17,704 INFO L225 Difference]: With dead ends: 9158 [2021-11-13 17:35:17,704 INFO L226 Difference]: Without dead ends: 6316 [2021-11-13 17:35:17,726 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-13 17:35:17,730 INFO L933 BasicCegarLoop]: 4183 mSDtfsCounter, 7006 mSDsluCounter, 6200 mSDsCounter, 0 mSdLazyCounter, 5059 mSolverCounterSat, 4433 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22933.60ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7448 SdHoareTripleChecker+Valid, 10383 SdHoareTripleChecker+Invalid, 9494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 175.86ms SdHoareTripleChecker+Time, 4433 IncrementalHoareTripleChecker+Valid, 5059 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25390.86ms IncrementalHoareTripleChecker+Time [2021-11-13 17:35:17,731 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7448 Valid, 10383 Invalid, 9494 Unknown, 0 Unchecked, 175.86ms Time], IncrementalHoareTripleChecker [4433 Valid, 5059 Invalid, 2 Unknown, 0 Unchecked, 25390.86ms Time] [2021-11-13 17:35:17,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6316 states. [2021-11-13 17:35:18,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6316 to 5466. [2021-11-13 17:35:18,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5466 states, 3792 states have (on average 1.3082805907172996) internal successors, (4961), 3878 states have internal predecessors, (4961), 1367 states have call successors, (1367), 307 states have call predecessors, (1367), 306 states have return successors, (1366), 1338 states have call predecessors, (1366), 1366 states have call successors, (1366) [2021-11-13 17:35:18,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5466 states to 5466 states and 7694 transitions. [2021-11-13 17:35:18,235 INFO L78 Accepts]: Start accepts. Automaton has 5466 states and 7694 transitions. Word has length 91 [2021-11-13 17:35:18,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:35:18,236 INFO L470 AbstractCegarLoop]: Abstraction has 5466 states and 7694 transitions. [2021-11-13 17:35:18,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2021-11-13 17:35:18,236 INFO L276 IsEmpty]: Start isEmpty. Operand 5466 states and 7694 transitions. [2021-11-13 17:35:18,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-13 17:35:18,244 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:35:18,244 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:35:18,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 17:35:18,245 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:35:18,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:35:18,246 INFO L85 PathProgramCache]: Analyzing trace with hash 1806858512, now seen corresponding path program 1 times [2021-11-13 17:35:18,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:35:18,246 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385726088] [2021-11-13 17:35:18,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:35:18,247 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:35:18,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:18,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:35:18,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:18,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-13 17:35:18,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:18,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 17:35:18,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:18,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-13 17:35:18,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:18,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-13 17:35:18,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:18,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-13 17:35:18,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:18,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-13 17:35:18,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:18,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-13 17:35:18,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:18,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-13 17:35:18,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:18,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 17:35:18,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:18,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-13 17:35:18,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:18,755 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-11-13 17:35:18,755 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:35:18,756 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385726088] [2021-11-13 17:35:18,756 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385726088] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:35:18,756 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:35:18,756 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-13 17:35:18,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354474455] [2021-11-13 17:35:18,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:35:18,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 17:35:18,759 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:35:18,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 17:35:18,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-13 17:35:18,760 INFO L87 Difference]: Start difference. First operand 5466 states and 7694 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-13 17:35:20,736 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:35:23,788 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:35:26,103 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:35:27,692 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:35:47,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:35:47,159 INFO L93 Difference]: Finished difference Result 12597 states and 18453 transitions. [2021-11-13 17:35:47,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 17:35:47,169 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 93 [2021-11-13 17:35:47,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:35:47,303 INFO L225 Difference]: With dead ends: 12597 [2021-11-13 17:35:47,303 INFO L226 Difference]: Without dead ends: 12589 [2021-11-13 17:35:47,314 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2021-11-13 17:35:47,319 INFO L933 BasicCegarLoop]: 4191 mSDtfsCounter, 6952 mSDsluCounter, 13610 mSDsCounter, 0 mSdLazyCounter, 7580 mSolverCounterSat, 4343 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24916.51ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7396 SdHoareTripleChecker+Valid, 17801 SdHoareTripleChecker+Invalid, 11924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 142.22ms SdHoareTripleChecker+Time, 4343 IncrementalHoareTripleChecker+Valid, 7580 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27533.08ms IncrementalHoareTripleChecker+Time [2021-11-13 17:35:47,320 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7396 Valid, 17801 Invalid, 11924 Unknown, 0 Unchecked, 142.22ms Time], IncrementalHoareTripleChecker [4343 Valid, 7580 Invalid, 1 Unknown, 0 Unchecked, 27533.08ms Time] [2021-11-13 17:35:47,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12589 states. [2021-11-13 17:35:48,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12589 to 10937. [2021-11-13 17:35:48,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10937 states, 7584 states have (on average 1.3085443037974684) internal successors, (9924), 7764 states have internal predecessors, (9924), 2728 states have call successors, (2728), 613 states have call predecessors, (2728), 624 states have return successors, (2823), 2671 states have call predecessors, (2823), 2727 states have call successors, (2823) [2021-11-13 17:35:48,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10937 states to 10937 states and 15475 transitions. [2021-11-13 17:35:48,168 INFO L78 Accepts]: Start accepts. Automaton has 10937 states and 15475 transitions. Word has length 93 [2021-11-13 17:35:48,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:35:48,169 INFO L470 AbstractCegarLoop]: Abstraction has 10937 states and 15475 transitions. [2021-11-13 17:35:48,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-13 17:35:48,170 INFO L276 IsEmpty]: Start isEmpty. Operand 10937 states and 15475 transitions. [2021-11-13 17:35:48,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2021-11-13 17:35:48,234 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:35:48,236 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 5, 5, 4, 4, 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] [2021-11-13 17:35:48,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-13 17:35:48,237 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:35:48,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:35:48,238 INFO L85 PathProgramCache]: Analyzing trace with hash -1790915239, now seen corresponding path program 1 times [2021-11-13 17:35:48,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:35:48,239 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068800237] [2021-11-13 17:35:48,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:35:48,240 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:35:48,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:48,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:35:48,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:48,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-13 17:35:48,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:48,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 17:35:48,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:48,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-13 17:35:48,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:48,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-13 17:35:48,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:48,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-13 17:35:48,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:48,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-13 17:35:48,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:48,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-13 17:35:48,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:48,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-13 17:35:48,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:48,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 17:35:48,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:48,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-13 17:35:48,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:48,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 17:35:48,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:49,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:35:49,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:49,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-13 17:35:49,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:49,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-13 17:35:49,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:49,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-13 17:35:49,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:49,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:35:49,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:49,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-11-13 17:35:49,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:49,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:35:49,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:49,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:35:49,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:49,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 17:35:49,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:49,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-13 17:35:49,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:49,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:35:49,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:49,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:35:49,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:49,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-13 17:35:49,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:49,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-11-13 17:35:49,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:49,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-13 17:35:49,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:49,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-11-13 17:35:49,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:49,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-11-13 17:35:49,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:49,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-11-13 17:35:49,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:49,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-11-13 17:35:49,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:49,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-13 17:35:49,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:49,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-13 17:35:49,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:49,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-13 17:35:49,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:49,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:35:49,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:49,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-11-13 17:35:49,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:49,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-11-13 17:35:49,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:49,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-11-13 17:35:49,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:49,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-11-13 17:35:49,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:49,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-11-13 17:35:49,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:49,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:35:49,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:49,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 17:35:49,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:49,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 17:35:49,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:49,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:35:49,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:49,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:35:49,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:49,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:35:49,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:49,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-13 17:35:49,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:49,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-11-13 17:35:49,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:49,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-13 17:35:49,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:49,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-13 17:35:49,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:49,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:35:49,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:49,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-11-13 17:35:49,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:49,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 17:35:49,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:49,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-13 17:35:49,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:50,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-11-13 17:35:50,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:50,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2021-11-13 17:35:50,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:50,029 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2021-11-13 17:35:50,029 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:35:50,029 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068800237] [2021-11-13 17:35:50,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068800237] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:35:50,030 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:35:50,030 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-11-13 17:35:50,030 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548976297] [2021-11-13 17:35:50,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:35:50,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-13 17:35:50,033 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:35:50,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-13 17:35:50,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-11-13 17:35:50,035 INFO L87 Difference]: Start difference. First operand 10937 states and 15475 transitions. Second operand has 15 states, 14 states have (on average 14.642857142857142) internal successors, (205), 7 states have internal predecessors, (205), 3 states have call successors, (57), 8 states have call predecessors, (57), 3 states have return successors, (56), 4 states have call predecessors, (56), 3 states have call successors, (56) [2021-11-13 17:35:51,340 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 [] [2021-11-13 17:35:53,444 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:35:55,554 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:35:57,690 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:35:59,801 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:36:02,624 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:36:04,655 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:36:06,528 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:36:11,446 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:36:13,392 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:36:22,940 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:36:34,919 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:36:57,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:36:57,252 INFO L93 Difference]: Finished difference Result 36715 states and 53738 transitions. [2021-11-13 17:36:57,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-11-13 17:36:57,253 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 14.642857142857142) internal successors, (205), 7 states have internal predecessors, (205), 3 states have call successors, (57), 8 states have call predecessors, (57), 3 states have return successors, (56), 4 states have call predecessors, (56), 3 states have call successors, (56) Word has length 374 [2021-11-13 17:36:57,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:36:57,447 INFO L225 Difference]: With dead ends: 36715 [2021-11-13 17:36:57,447 INFO L226 Difference]: Without dead ends: 25805 [2021-11-13 17:36:57,532 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=365, Invalid=1041, Unknown=0, NotChecked=0, Total=1406 [2021-11-13 17:36:57,533 INFO L933 BasicCegarLoop]: 3803 mSDtfsCounter, 9549 mSDsluCounter, 24663 mSDsCounter, 0 mSdLazyCounter, 26277 mSolverCounterSat, 7192 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 59195.23ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10335 SdHoareTripleChecker+Valid, 28466 SdHoareTripleChecker+Invalid, 33474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 276.55ms SdHoareTripleChecker+Time, 7192 IncrementalHoareTripleChecker+Valid, 26277 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 64689.72ms IncrementalHoareTripleChecker+Time [2021-11-13 17:36:57,534 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10335 Valid, 28466 Invalid, 33474 Unknown, 0 Unchecked, 276.55ms Time], IncrementalHoareTripleChecker [7192 Valid, 26277 Invalid, 5 Unknown, 0 Unchecked, 64689.72ms Time] [2021-11-13 17:36:57,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25805 states. [2021-11-13 17:36:58,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25805 to 21581. [2021-11-13 17:36:58,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21581 states, 14970 states have (on average 1.3070140280561122) internal successors, (19566), 15324 states have internal predecessors, (19566), 5368 states have call successors, (5368), 1213 states have call predecessors, (5368), 1242 states have return successors, (5553), 5257 states have call predecessors, (5553), 5367 states have call successors, (5553) [2021-11-13 17:36:59,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21581 states to 21581 states and 30487 transitions. [2021-11-13 17:36:59,328 INFO L78 Accepts]: Start accepts. Automaton has 21581 states and 30487 transitions. Word has length 374 [2021-11-13 17:36:59,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:36:59,331 INFO L470 AbstractCegarLoop]: Abstraction has 21581 states and 30487 transitions. [2021-11-13 17:36:59,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 14.642857142857142) internal successors, (205), 7 states have internal predecessors, (205), 3 states have call successors, (57), 8 states have call predecessors, (57), 3 states have return successors, (56), 4 states have call predecessors, (56), 3 states have call successors, (56) [2021-11-13 17:36:59,331 INFO L276 IsEmpty]: Start isEmpty. Operand 21581 states and 30487 transitions. [2021-11-13 17:36:59,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 426 [2021-11-13 17:36:59,438 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:36:59,438 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:36:59,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-13 17:36:59,439 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:36:59,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:36:59,440 INFO L85 PathProgramCache]: Analyzing trace with hash 676858947, now seen corresponding path program 1 times [2021-11-13 17:36:59,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:36:59,440 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669897927] [2021-11-13 17:36:59,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:36:59,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:36:59,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:59,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:36:59,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:59,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-13 17:36:59,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:59,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 17:36:59,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:59,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-13 17:36:59,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:59,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-13 17:36:59,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:59,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-13 17:36:59,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:59,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-13 17:36:59,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:59,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-13 17:36:59,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:59,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-13 17:36:59,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:59,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 17:36:59,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:59,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-13 17:36:59,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:00,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-13 17:37:00,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:00,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:37:00,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:00,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-13 17:37:00,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:00,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-13 17:37:00,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:00,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-13 17:37:00,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:00,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:37:00,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:00,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-11-13 17:37:00,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:00,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-13 17:37:00,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:00,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-13 17:37:00,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:00,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-13 17:37:00,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:00,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:37:00,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:00,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:37:00,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:00,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 17:37:00,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:00,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-13 17:37:00,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:00,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:37:00,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:00,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:37:00,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:00,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-13 17:37:00,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:00,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-13 17:37:00,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:00,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-13 17:37:00,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:00,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-11-13 17:37:00,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:00,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-11-13 17:37:00,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:00,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 17:37:00,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:00,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-11-13 17:37:00,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:00,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-13 17:37:00,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:00,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-11-13 17:37:00,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:00,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-11-13 17:37:00,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:00,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-13 17:37:00,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:00,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:37:00,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:00,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-13 17:37:00,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:00,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-13 17:37:00,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:00,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-11-13 17:37:00,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:00,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-11-13 17:37:00,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:00,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-13 17:37:00,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:00,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:37:00,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:01,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 17:37:01,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:01,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:37:01,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:01,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:37:01,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:01,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:37:01,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:01,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-11-13 17:37:01,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:01,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 17:37:01,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:01,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:37:01,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:01,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:37:01,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:01,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:37:01,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:01,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-13 17:37:01,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:01,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-13 17:37:01,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:01,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-11-13 17:37:01,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:01,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-13 17:37:01,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:01,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:37:01,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:01,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-11-13 17:37:01,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:01,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 17:37:01,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:01,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-13 17:37:01,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:01,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-11-13 17:37:01,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:01,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-11-13 17:37:01,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:01,576 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2021-11-13 17:37:01,576 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:37:01,576 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669897927] [2021-11-13 17:37:01,577 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669897927] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 17:37:01,577 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1106509987] [2021-11-13 17:37:01,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:37:01,577 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:37:01,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f05623e-384a-4b21-8a36-e1bd2e88959c/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:37:01,579 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f05623e-384a-4b21-8a36-e1bd2e88959c/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 17:37:01,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f05623e-384a-4b21-8a36-e1bd2e88959c/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-13 17:37:02,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:02,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 4550 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 17:37:02,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:37:03,894 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2021-11-13 17:37:03,894 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-13 17:37:03,895 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1106509987] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:37:03,895 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 17:37:03,895 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [18] total 19 [2021-11-13 17:37:03,896 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696862039] [2021-11-13 17:37:03,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:37:03,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 17:37:03,897 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:37:03,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 17:37:03,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2021-11-13 17:37:03,898 INFO L87 Difference]: Start difference. First operand 21581 states and 30487 transitions. Second operand has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 2 states have call successors, (61), 2 states have call predecessors, (61), 2 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2021-11-13 17:37:05,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:37:05,205 INFO L93 Difference]: Finished difference Result 61073 states and 86185 transitions. [2021-11-13 17:37:05,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 17:37:05,207 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 2 states have call successors, (61), 2 states have call predecessors, (61), 2 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) Word has length 425 [2021-11-13 17:37:05,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:37:05,448 INFO L225 Difference]: With dead ends: 61073 [2021-11-13 17:37:05,448 INFO L226 Difference]: Without dead ends: 39519 [2021-11-13 17:37:05,559 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 565 GetRequests, 548 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2021-11-13 17:37:05,564 INFO L933 BasicCegarLoop]: 4657 mSDtfsCounter, 3224 mSDsluCounter, 3824 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 90.16ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3224 SdHoareTripleChecker+Valid, 8481 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.40ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 117.58ms IncrementalHoareTripleChecker+Time [2021-11-13 17:37:05,565 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3224 Valid, 8481 Invalid, 45 Unknown, 0 Unchecked, 11.40ms Time], IncrementalHoareTripleChecker [9 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 117.58ms Time] [2021-11-13 17:37:05,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39519 states. [2021-11-13 17:37:07,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39519 to 39511. [2021-11-13 17:37:07,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39511 states, 27588 states have (on average 1.31071480353777) internal successors, (36160), 28160 states have internal predecessors, (36160), 9592 states have call successors, (9592), 2277 states have call predecessors, (9592), 2330 states have return successors, (9913), 9429 states have call predecessors, (9913), 9591 states have call successors, (9913) [2021-11-13 17:37:07,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39511 states to 39511 states and 55665 transitions. [2021-11-13 17:37:07,998 INFO L78 Accepts]: Start accepts. Automaton has 39511 states and 55665 transitions. Word has length 425 [2021-11-13 17:37:07,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:37:07,999 INFO L470 AbstractCegarLoop]: Abstraction has 39511 states and 55665 transitions. [2021-11-13 17:37:07,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 2 states have call successors, (61), 2 states have call predecessors, (61), 2 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2021-11-13 17:37:08,000 INFO L276 IsEmpty]: Start isEmpty. Operand 39511 states and 55665 transitions. [2021-11-13 17:37:08,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 503 [2021-11-13 17:37:08,140 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:37:08,141 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-13 17:37:08,192 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f05623e-384a-4b21-8a36-e1bd2e88959c/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-13 17:37:08,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f05623e-384a-4b21-8a36-e1bd2e88959c/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:37:08,369 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:37:08,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:37:08,370 INFO L85 PathProgramCache]: Analyzing trace with hash 2090856151, now seen corresponding path program 1 times [2021-11-13 17:37:08,370 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:37:08,370 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784273541] [2021-11-13 17:37:08,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:37:08,370 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:37:08,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:09,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:37:09,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:09,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-13 17:37:09,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:09,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 17:37:09,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:09,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-13 17:37:09,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:09,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-13 17:37:09,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:09,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-13 17:37:09,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:09,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-13 17:37:09,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:09,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-13 17:37:09,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:09,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-13 17:37:09,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:09,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 17:37:09,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:09,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-13 17:37:09,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:09,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-11-13 17:37:09,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:09,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-11-13 17:37:09,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:09,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-11-13 17:37:09,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:09,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-11-13 17:37:09,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:09,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-11-13 17:37:09,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:09,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:37:09,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:09,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:37:09,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:09,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 17:37:09,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:09,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-13 17:37:09,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:09,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:37:09,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:09,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:37:09,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:09,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-13 17:37:09,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:09,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-13 17:37:09,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:09,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-13 17:37:09,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:09,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-11-13 17:37:09,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:09,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-11-13 17:37:09,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:09,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 17:37:09,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:09,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-11-13 17:37:09,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:09,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-13 17:37:09,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:09,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-11-13 17:37:09,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:09,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-11-13 17:37:09,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:09,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-13 17:37:09,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:09,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:37:09,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:09,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-13 17:37:09,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:09,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-13 17:37:09,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:09,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-11-13 17:37:09,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:09,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-11-13 17:37:09,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:09,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-13 17:37:09,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:09,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:37:09,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:09,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 17:37:09,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:09,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:37:09,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:09,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:37:09,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:09,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:37:09,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:09,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-11-13 17:37:09,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:09,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 17:37:09,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:09,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:37:09,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:09,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:37:09,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:09,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:37:09,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:09,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-13 17:37:09,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:10,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-13 17:37:10,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:10,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-11-13 17:37:10,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:10,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2021-11-13 17:37:10,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:10,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2021-11-13 17:37:10,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:10,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:37:10,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:10,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-13 17:37:10,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:10,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-13 17:37:10,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:10,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:37:10,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:10,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:37:10,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:10,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-11-13 17:37:10,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:10,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-13 17:37:10,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:10,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-11-13 17:37:10,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:10,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2021-11-13 17:37:10,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:10,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:37:10,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:10,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-13 17:37:10,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:10,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:37:10,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:10,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-11-13 17:37:10,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:10,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 17:37:10,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:10,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-13 17:37:10,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:10,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-11-13 17:37:10,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:10,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-13 17:37:10,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:10,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-13 17:37:10,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:10,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:37:10,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:10,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:37:10,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:10,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-11-13 17:37:10,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:10,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-13 17:37:10,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:10,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-11-13 17:37:10,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:10,379 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 469 trivial. 0 not checked. [2021-11-13 17:37:10,380 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:37:10,380 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784273541] [2021-11-13 17:37:10,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784273541] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:37:10,380 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:37:10,381 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-13 17:37:10,381 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913344224] [2021-11-13 17:37:10,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:37:10,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-13 17:37:10,384 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:37:10,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-13 17:37:10,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-13 17:37:10,385 INFO L87 Difference]: Start difference. First operand 39511 states and 55665 transitions. Second operand has 10 states, 10 states have (on average 23.0) internal successors, (230), 3 states have internal predecessors, (230), 2 states have call successors, (69), 9 states have call predecessors, (69), 1 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) [2021-11-13 17:37:12,241 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:37:13,726 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:37:15,233 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:37:17,390 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:37:22,717 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:37:24,386 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:37:54,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:37:54,971 INFO L93 Difference]: Finished difference Result 125187 states and 181030 transitions. [2021-11-13 17:37:54,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-13 17:37:54,972 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 23.0) internal successors, (230), 3 states have internal predecessors, (230), 2 states have call successors, (69), 9 states have call predecessors, (69), 1 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) Word has length 502 [2021-11-13 17:37:54,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:37:55,643 INFO L225 Difference]: With dead ends: 125187 [2021-11-13 17:37:55,644 INFO L226 Difference]: Without dead ends: 85703 [2021-11-13 17:37:55,799 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=157, Invalid=395, Unknown=0, NotChecked=0, Total=552 [2021-11-13 17:37:55,800 INFO L933 BasicCegarLoop]: 3613 mSDtfsCounter, 16866 mSDsluCounter, 6591 mSDsCounter, 0 mSdLazyCounter, 8831 mSolverCounterSat, 14946 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35459.46ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 17182 SdHoareTripleChecker+Valid, 10204 SdHoareTripleChecker+Invalid, 23779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 151.98ms SdHoareTripleChecker+Time, 14946 IncrementalHoareTripleChecker+Valid, 8831 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39704.42ms IncrementalHoareTripleChecker+Time [2021-11-13 17:37:55,800 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17182 Valid, 10204 Invalid, 23779 Unknown, 0 Unchecked, 151.98ms Time], IncrementalHoareTripleChecker [14946 Valid, 8831 Invalid, 2 Unknown, 0 Unchecked, 39704.42ms Time] [2021-11-13 17:37:55,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85703 states. [2021-11-13 17:38:00,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85703 to 69923. [2021-11-13 17:38:00,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69923 states, 48898 states have (on average 1.3069246185938075) internal successors, (63906), 49970 states have internal predecessors, (63906), 16684 states have call successors, (16684), 4249 states have call predecessors, (16684), 4340 states have return successors, (17247), 16311 states have call predecessors, (17247), 16683 states have call successors, (17247) [2021-11-13 17:38:01,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69923 states to 69923 states and 97837 transitions. [2021-11-13 17:38:01,298 INFO L78 Accepts]: Start accepts. Automaton has 69923 states and 97837 transitions. Word has length 502 [2021-11-13 17:38:01,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:38:01,300 INFO L470 AbstractCegarLoop]: Abstraction has 69923 states and 97837 transitions. [2021-11-13 17:38:01,300 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 23.0) internal successors, (230), 3 states have internal predecessors, (230), 2 states have call successors, (69), 9 states have call predecessors, (69), 1 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) [2021-11-13 17:38:01,301 INFO L276 IsEmpty]: Start isEmpty. Operand 69923 states and 97837 transitions. [2021-11-13 17:38:01,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2021-11-13 17:38:01,394 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:38:01,394 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 7, 7, 7, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:38:01,395 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-13 17:38:01,395 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:38:01,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:38:01,395 INFO L85 PathProgramCache]: Analyzing trace with hash -716616389, now seen corresponding path program 1 times [2021-11-13 17:38:01,396 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:38:01,396 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342757796] [2021-11-13 17:38:01,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:38:01,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:38:01,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:01,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:38:01,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:01,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-13 17:38:01,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:01,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 17:38:01,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:01,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-13 17:38:01,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:01,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-13 17:38:01,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:01,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-13 17:38:01,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:01,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-13 17:38:01,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:01,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-13 17:38:01,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:01,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-13 17:38:01,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:01,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 17:38:01,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:01,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-13 17:38:01,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:01,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-11-13 17:38:01,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:01,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-13 17:38:01,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:01,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 17:38:01,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:01,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-11-13 17:38:01,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:01,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-13 17:38:01,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:01,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-13 17:38:01,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:01,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-13 17:38:01,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:01,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-13 17:38:01,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:01,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-11-13 17:38:01,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:02,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-13 17:38:02,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:02,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:38:02,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:02,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-13 17:38:02,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:02,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-13 17:38:02,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:02,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-13 17:38:02,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:02,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:38:02,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:02,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-11-13 17:38:02,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:02,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:38:02,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:02,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:38:02,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:02,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 17:38:02,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:02,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-13 17:38:02,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:02,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:38:02,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:02,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:38:02,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:02,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-13 17:38:02,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:02,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-13 17:38:02,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:02,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-13 17:38:02,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:02,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-11-13 17:38:02,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:02,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-11-13 17:38:02,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:02,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 17:38:02,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:02,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-11-13 17:38:02,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:02,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-13 17:38:02,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:02,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-11-13 17:38:02,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:02,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-11-13 17:38:02,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:02,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-13 17:38:02,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:02,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:38:02,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:02,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-13 17:38:02,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:02,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-13 17:38:02,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:02,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-11-13 17:38:02,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:02,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-11-13 17:38:02,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:02,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-13 17:38:02,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:02,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:38:02,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:02,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 17:38:02,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:02,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 17:38:02,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:02,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-13 17:38:02,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:02,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-11-13 17:38:02,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:02,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-13 17:38:02,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:02,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:38:02,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:02,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-11-13 17:38:02,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:02,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 17:38:02,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:02,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-13 17:38:02,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:02,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-11-13 17:38:02,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:02,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-11-13 17:38:02,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:02,863 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 560 trivial. 0 not checked. [2021-11-13 17:38:02,863 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:38:02,864 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342757796] [2021-11-13 17:38:02,864 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342757796] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:38:02,864 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:38:02,864 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-13 17:38:02,865 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128689586] [2021-11-13 17:38:02,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:38:02,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 17:38:02,867 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:38:02,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 17:38:02,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-13 17:38:02,868 INFO L87 Difference]: Start difference. First operand 69923 states and 97837 transitions. Second operand has 9 states, 9 states have (on average 24.444444444444443) internal successors, (220), 3 states have internal predecessors, (220), 3 states have call successors, (63), 8 states have call predecessors, (63), 1 states have return successors, (62), 3 states have call predecessors, (62), 3 states have call successors, (62) [2021-11-13 17:38:04,612 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:38:06,758 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:38:08,899 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:38:11,058 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:38:13,034 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:38:19,083 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 [] [2021-11-13 17:38:48,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:38:48,707 INFO L93 Difference]: Finished difference Result 196103 states and 282422 transitions. [2021-11-13 17:38:48,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-13 17:38:48,708 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 24.444444444444443) internal successors, (220), 3 states have internal predecessors, (220), 3 states have call successors, (63), 8 states have call predecessors, (63), 1 states have return successors, (62), 3 states have call predecessors, (62), 3 states have call successors, (62) Word has length 430 [2021-11-13 17:38:48,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:38:49,452 INFO L225 Difference]: With dead ends: 196103 [2021-11-13 17:38:49,452 INFO L226 Difference]: Without dead ends: 126207 [2021-11-13 17:38:50,021 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=96, Invalid=210, Unknown=0, NotChecked=0, Total=306 [2021-11-13 17:38:50,022 INFO L933 BasicCegarLoop]: 6003 mSDtfsCounter, 9720 mSDsluCounter, 10548 mSDsCounter, 0 mSdLazyCounter, 12193 mSolverCounterSat, 8289 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35164.07ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10493 SdHoareTripleChecker+Valid, 16551 SdHoareTripleChecker+Invalid, 20486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 150.64ms SdHoareTripleChecker+Time, 8289 IncrementalHoareTripleChecker+Valid, 12193 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39464.47ms IncrementalHoareTripleChecker+Time [2021-11-13 17:38:50,023 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10493 Valid, 16551 Invalid, 20486 Unknown, 0 Unchecked, 150.64ms Time], IncrementalHoareTripleChecker [8289 Valid, 12193 Invalid, 4 Unknown, 0 Unchecked, 39464.47ms Time] [2021-11-13 17:38:50,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126207 states. [2021-11-13 17:38:56,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126207 to 105423. [2021-11-13 17:38:56,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105423 states, 73794 states have (on average 1.3054990920671057) internal successors, (96338), 75406 states have internal predecessors, (96338), 25032 states have call successors, (25032), 6393 states have call predecessors, (25032), 6596 states have return successors, (26663), 24535 states have call predecessors, (26663), 25031 states have call successors, (26663) [2021-11-13 17:38:57,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105423 states to 105423 states and 148033 transitions. [2021-11-13 17:38:57,066 INFO L78 Accepts]: Start accepts. Automaton has 105423 states and 148033 transitions. Word has length 430 [2021-11-13 17:38:57,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:38:57,067 INFO L470 AbstractCegarLoop]: Abstraction has 105423 states and 148033 transitions. [2021-11-13 17:38:57,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 24.444444444444443) internal successors, (220), 3 states have internal predecessors, (220), 3 states have call successors, (63), 8 states have call predecessors, (63), 1 states have return successors, (62), 3 states have call predecessors, (62), 3 states have call successors, (62) [2021-11-13 17:38:57,068 INFO L276 IsEmpty]: Start isEmpty. Operand 105423 states and 148033 transitions. [2021-11-13 17:38:57,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2021-11-13 17:38:57,214 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:38:57,214 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 7, 7, 7, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:38:57,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-13 17:38:57,215 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:38:57,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:38:57,216 INFO L85 PathProgramCache]: Analyzing trace with hash 975250363, now seen corresponding path program 1 times [2021-11-13 17:38:57,216 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:38:57,216 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372368373] [2021-11-13 17:38:57,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:38:57,217 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:38:57,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:57,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:38:57,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:57,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-13 17:38:57,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:57,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 17:38:57,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:57,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-13 17:38:57,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:57,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-13 17:38:57,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:57,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-13 17:38:57,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:57,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-13 17:38:57,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:57,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-13 17:38:57,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:57,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-13 17:38:57,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:57,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 17:38:57,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:57,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-13 17:38:57,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:57,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-11-13 17:38:57,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:57,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-13 17:38:57,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:57,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 17:38:57,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:57,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-11-13 17:38:57,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:57,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-13 17:38:57,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:57,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-13 17:38:57,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:57,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-13 17:38:57,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:57,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-13 17:38:57,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:57,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-11-13 17:38:57,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:58,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-13 17:38:58,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:58,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:38:58,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:58,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-13 17:38:58,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:58,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-13 17:38:58,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:58,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-13 17:38:58,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:58,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:38:58,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:58,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-11-13 17:38:58,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:58,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:38:58,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:58,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:38:58,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:58,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 17:38:58,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:58,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-13 17:38:58,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:58,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:38:58,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:58,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:38:58,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:58,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-13 17:38:58,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:58,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-13 17:38:58,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:58,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-13 17:38:58,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:58,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-11-13 17:38:58,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:58,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-11-13 17:38:58,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:58,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 17:38:58,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:58,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-11-13 17:38:58,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:58,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-13 17:38:58,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:58,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-11-13 17:38:58,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:58,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-11-13 17:38:58,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:58,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-13 17:38:58,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:58,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:38:58,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:58,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-13 17:38:58,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:58,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-13 17:38:58,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:58,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-11-13 17:38:58,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:58,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-11-13 17:38:58,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:58,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-13 17:38:58,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:58,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:38:58,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:58,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 17:38:58,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:58,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 17:38:58,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:58,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-13 17:38:58,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:59,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-11-13 17:38:59,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:59,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-13 17:38:59,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:59,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:38:59,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:59,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-11-13 17:38:59,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:59,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 17:38:59,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:59,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-13 17:38:59,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:59,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-11-13 17:38:59,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:59,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-11-13 17:38:59,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:59,192 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 558 trivial. 0 not checked. [2021-11-13 17:38:59,192 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:38:59,192 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372368373] [2021-11-13 17:38:59,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372368373] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 17:38:59,193 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [626191780] [2021-11-13 17:38:59,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:38:59,193 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:38:59,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f05623e-384a-4b21-8a36-e1bd2e88959c/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:38:59,197 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f05623e-384a-4b21-8a36-e1bd2e88959c/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 17:38:59,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f05623e-384a-4b21-8a36-e1bd2e88959c/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-13 17:39:00,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:00,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 4620 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 17:39:00,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:39:01,394 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 502 trivial. 0 not checked. [2021-11-13 17:39:01,395 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-13 17:39:01,395 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [626191780] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:39:01,395 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 17:39:01,395 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [14] total 15 [2021-11-13 17:39:01,396 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369430178] [2021-11-13 17:39:01,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:39:01,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 17:39:01,397 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:39:01,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 17:39:01,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-11-13 17:39:01,398 INFO L87 Difference]: Start difference. First operand 105423 states and 148033 transitions. Second operand has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 2 states have call successors, (63), 2 states have call predecessors, (63), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2021-11-13 17:39:05,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:39:05,810 INFO L93 Difference]: Finished difference Result 158475 states and 223420 transitions. [2021-11-13 17:39:05,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 17:39:05,825 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 2 states have call successors, (63), 2 states have call predecessors, (63), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) Word has length 430 [2021-11-13 17:39:05,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:39:06,642 INFO L225 Difference]: With dead ends: 158475 [2021-11-13 17:39:06,642 INFO L226 Difference]: Without dead ends: 105471 [2021-11-13 17:39:06,798 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 564 GetRequests, 551 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-11-13 17:39:06,799 INFO L933 BasicCegarLoop]: 3888 mSDtfsCounter, 5 mSDsluCounter, 3880 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.18ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 7768 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.28ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.51ms IncrementalHoareTripleChecker+Time [2021-11-13 17:39:06,799 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 7768 Invalid, 4 Unknown, 0 Unchecked, 10.28ms Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 6.51ms Time] [2021-11-13 17:39:06,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105471 states.