./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--dec--tulip--de4x5.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_590b8de5-e4e5-4656-9029-0ba5dd3780b7/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_590b8de5-e4e5-4656-9029-0ba5dd3780b7/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_590b8de5-e4e5-4656-9029-0ba5dd3780b7/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_590b8de5-e4e5-4656-9029-0ba5dd3780b7/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--dec--tulip--de4x5.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_590b8de5-e4e5-4656-9029-0ba5dd3780b7/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_590b8de5-e4e5-4656-9029-0ba5dd3780b7/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 7a2974a33527a9392dca8d355734fee3e0faaae6e14749128119c28fd0f37e8f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 18:00:41,393 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 18:00:41,399 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 18:00:41,464 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 18:00:41,465 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 18:00:41,471 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 18:00:41,474 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 18:00:41,480 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 18:00:41,483 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 18:00:41,490 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 18:00:41,492 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 18:00:41,494 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 18:00:41,495 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 18:00:41,498 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 18:00:41,501 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 18:00:41,504 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 18:00:41,506 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 18:00:41,507 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 18:00:41,513 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 18:00:41,523 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 18:00:41,525 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 18:00:41,527 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 18:00:41,531 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 18:00:41,532 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 18:00:41,544 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 18:00:41,545 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 18:00:41,545 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 18:00:41,548 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 18:00:41,549 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 18:00:41,550 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 18:00:41,551 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 18:00:41,552 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 18:00:41,555 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 18:00:41,556 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 18:00:41,558 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 18:00:41,559 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 18:00:41,560 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 18:00:41,560 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 18:00:41,560 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 18:00:41,562 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 18:00:41,563 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 18:00:41,564 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_590b8de5-e4e5-4656-9029-0ba5dd3780b7/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-13 18:00:41,618 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 18:00:41,618 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 18:00:41,619 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 18:00:41,619 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 18:00:41,621 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 18:00:41,621 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 18:00:41,622 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 18:00:41,622 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 18:00:41,623 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 18:00:41,623 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 18:00:41,624 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 18:00:41,625 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 18:00:41,625 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 18:00:41,625 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 18:00:41,626 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 18:00:41,626 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 18:00:41,626 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 18:00:41,627 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 18:00:41,627 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 18:00:41,627 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 18:00:41,628 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 18:00:41,628 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:00:41,628 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 18:00:41,629 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 18:00:41,629 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 18:00:41,629 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 18:00:41,630 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 18:00:41,630 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-13 18:00:41,630 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-13 18:00:41,630 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 18:00:41,631 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 18:00:41,631 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_590b8de5-e4e5-4656-9029-0ba5dd3780b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_590b8de5-e4e5-4656-9029-0ba5dd3780b7/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7a2974a33527a9392dca8d355734fee3e0faaae6e14749128119c28fd0f37e8f [2021-11-13 18:00:42,010 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 18:00:42,038 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 18:00:42,042 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 18:00:42,044 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 18:00:42,045 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 18:00:42,047 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_590b8de5-e4e5-4656-9029-0ba5dd3780b7/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--dec--tulip--de4x5.ko-entry_point.cil.out.i [2021-11-13 18:00:42,130 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_590b8de5-e4e5-4656-9029-0ba5dd3780b7/bin/uautomizer-YU5uOKAj3y/data/1d795366d/232b8af097d44e8ca1ef80eaad316e23/FLAG3521da137 [2021-11-13 18:00:43,217 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 18:00:43,217 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_590b8de5-e4e5-4656-9029-0ba5dd3780b7/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--dec--tulip--de4x5.ko-entry_point.cil.out.i [2021-11-13 18:00:43,287 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_590b8de5-e4e5-4656-9029-0ba5dd3780b7/bin/uautomizer-YU5uOKAj3y/data/1d795366d/232b8af097d44e8ca1ef80eaad316e23/FLAG3521da137 [2021-11-13 18:00:43,634 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_590b8de5-e4e5-4656-9029-0ba5dd3780b7/bin/uautomizer-YU5uOKAj3y/data/1d795366d/232b8af097d44e8ca1ef80eaad316e23 [2021-11-13 18:00:43,636 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 18:00:43,638 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 18:00:43,640 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 18:00:43,641 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 18:00:43,658 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 18:00:43,658 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:00:43" (1/1) ... [2021-11-13 18:00:43,659 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@188d7b94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:00:43, skipping insertion in model container [2021-11-13 18:00:43,659 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:00:43" (1/1) ... [2021-11-13 18:00:43,666 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 18:00:43,837 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 18:00:46,686 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_590b8de5-e4e5-4656-9029-0ba5dd3780b7/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--dec--tulip--de4x5.ko-entry_point.cil.out.i[386204,386217] [2021-11-13 18:00:46,775 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:00:46,830 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 18:00:47,437 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_590b8de5-e4e5-4656-9029-0ba5dd3780b7/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--dec--tulip--de4x5.ko-entry_point.cil.out.i[386204,386217] [2021-11-13 18:00:47,446 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:00:47,615 INFO L208 MainTranslator]: Completed translation [2021-11-13 18:00:47,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:00:47 WrapperNode [2021-11-13 18:00:47,617 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 18:00:47,618 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 18:00:47,618 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 18:00:47,619 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 18:00:47,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:00:47" (1/1) ... [2021-11-13 18:00:47,759 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:00:47" (1/1) ... [2021-11-13 18:00:48,043 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 18:00:48,044 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 18:00:48,044 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 18:00:48,044 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 18:00:48,059 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:00:47" (1/1) ... [2021-11-13 18:00:48,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:00:47" (1/1) ... [2021-11-13 18:00:48,127 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:00:47" (1/1) ... [2021-11-13 18:00:48,131 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:00:47" (1/1) ... [2021-11-13 18:00:48,332 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:00:47" (1/1) ... [2021-11-13 18:00:48,483 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:00:47" (1/1) ... [2021-11-13 18:00:48,528 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:00:47" (1/1) ... [2021-11-13 18:00:48,577 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 18:00:48,578 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 18:00:48,578 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 18:00:48,578 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 18:00:48,579 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:00:47" (1/1) ... [2021-11-13 18:00:48,587 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:00:48,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_590b8de5-e4e5-4656-9029-0ba5dd3780b7/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:00:48,613 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_590b8de5-e4e5-4656-9029-0ba5dd3780b7/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 18:00:48,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_590b8de5-e4e5-4656-9029-0ba5dd3780b7/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 18:00:48,664 INFO L130 BoogieDeclarations]: Found specification of procedure disable_ast [2021-11-13 18:00:48,665 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_ast [2021-11-13 18:00:48,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2021-11-13 18:00:48,665 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2021-11-13 18:00:48,666 INFO L130 BoogieDeclarations]: Found specification of procedure type3_infoblock [2021-11-13 18:00:48,666 INFO L138 BoogieDeclarations]: Found implementation of procedure type3_infoblock [2021-11-13 18:00:48,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-13 18:00:48,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-13 18:00:48,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-13 18:00:48,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-13 18:00:48,667 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_interrupt [2021-11-13 18:00:48,667 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_interrupt [2021-11-13 18:00:48,667 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-13 18:00:48,667 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-13 18:00:48,667 INFO L130 BoogieDeclarations]: Found specification of procedure reset_init_sia [2021-11-13 18:00:48,668 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_init_sia [2021-11-13 18:00:48,668 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-11-13 18:00:48,668 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-11-13 18:00:48,668 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-13 18:00:48,668 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-13 18:00:48,669 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_alloc_rx_buff [2021-11-13 18:00:48,669 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_alloc_rx_buff [2021-11-13 18:00:48,669 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-11-13 18:00:48,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-11-13 18:00:48,669 INFO L130 BoogieDeclarations]: Found specification of procedure test_for_100Mb [2021-11-13 18:00:48,669 INFO L138 BoogieDeclarations]: Found implementation of procedure test_for_100Mb [2021-11-13 18:00:48,670 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-13 18:00:48,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-13 18:00:48,670 INFO L130 BoogieDeclarations]: Found specification of procedure type4_infoblock [2021-11-13 18:00:48,670 INFO L138 BoogieDeclarations]: Found implementation of procedure type4_infoblock [2021-11-13 18:00:48,670 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_put_cache [2021-11-13 18:00:48,670 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_put_cache [2021-11-13 18:00:48,671 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2021-11-13 18:00:48,671 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2021-11-13 18:00:48,671 INFO L130 BoogieDeclarations]: Found specification of procedure type5_infoblock [2021-11-13 18:00:48,671 INFO L138 BoogieDeclarations]: Found implementation of procedure type5_infoblock [2021-11-13 18:00:48,671 INFO L130 BoogieDeclarations]: Found specification of procedure load_packet [2021-11-13 18:00:48,671 INFO L138 BoogieDeclarations]: Found implementation of procedure load_packet [2021-11-13 18:00:48,671 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-13 18:00:48,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-13 18:00:48,672 INFO L130 BoogieDeclarations]: Found specification of procedure getfrom_mii [2021-11-13 18:00:48,672 INFO L138 BoogieDeclarations]: Found implementation of procedure getfrom_mii [2021-11-13 18:00:48,672 INFO L130 BoogieDeclarations]: Found specification of procedure dc21140m_autoconf [2021-11-13 18:00:48,673 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21140m_autoconf [2021-11-13 18:00:48,673 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_switch_mac_port [2021-11-13 18:00:48,673 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_switch_mac_port [2021-11-13 18:00:48,673 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-13 18:00:48,673 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-13 18:00:48,674 INFO L130 BoogieDeclarations]: Found specification of procedure srom_latch [2021-11-13 18:00:48,674 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_latch [2021-11-13 18:00:48,674 INFO L130 BoogieDeclarations]: Found specification of procedure is_100_up [2021-11-13 18:00:48,674 INFO L138 BoogieDeclarations]: Found implementation of procedure is_100_up [2021-11-13 18:00:48,674 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_open [2021-11-13 18:00:48,674 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_open [2021-11-13 18:00:48,675 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-13 18:00:48,675 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-13 18:00:48,675 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ta [2021-11-13 18:00:48,675 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ta [2021-11-13 18:00:48,677 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2021-11-13 18:00:48,677 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2021-11-13 18:00:48,677 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-13 18:00:48,677 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-13 18:00:48,678 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-13 18:00:48,678 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-13 18:00:48,678 INFO L130 BoogieDeclarations]: Found specification of procedure dc21040_autoconf [2021-11-13 18:00:48,678 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21040_autoconf [2021-11-13 18:00:48,678 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2021-11-13 18:00:48,678 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2021-11-13 18:00:48,679 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-13 18:00:48,679 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-13 18:00:48,679 INFO L130 BoogieDeclarations]: Found specification of procedure build_setup_frame [2021-11-13 18:00:48,680 INFO L138 BoogieDeclarations]: Found implementation of procedure build_setup_frame [2021-11-13 18:00:48,680 INFO L130 BoogieDeclarations]: Found specification of procedure type2_infoblock [2021-11-13 18:00:48,680 INFO L138 BoogieDeclarations]: Found implementation of procedure type2_infoblock [2021-11-13 18:00:48,681 INFO L130 BoogieDeclarations]: Found specification of procedure test_mii_reg [2021-11-13 18:00:48,681 INFO L138 BoogieDeclarations]: Found implementation of procedure test_mii_reg [2021-11-13 18:00:48,681 INFO L130 BoogieDeclarations]: Found specification of procedure type0_infoblock [2021-11-13 18:00:48,681 INFO L138 BoogieDeclarations]: Found implementation of procedure type0_infoblock [2021-11-13 18:00:48,681 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_cache_state [2021-11-13 18:00:48,681 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_cache_state [2021-11-13 18:00:48,682 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-13 18:00:48,682 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-13 18:00:48,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 18:00:48,682 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_dbg_media [2021-11-13 18:00:48,682 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_dbg_media [2021-11-13 18:00:48,682 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2021-11-13 18:00:48,683 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2021-11-13 18:00:48,683 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-13 18:00:48,683 INFO L130 BoogieDeclarations]: Found specification of procedure autoconf_media [2021-11-13 18:00:48,683 INFO L138 BoogieDeclarations]: Found implementation of procedure autoconf_media [2021-11-13 18:00:48,683 INFO L130 BoogieDeclarations]: Found specification of procedure dc21041_autoconf [2021-11-13 18:00:48,684 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21041_autoconf [2021-11-13 18:00:48,684 INFO L130 BoogieDeclarations]: Found specification of procedure mii_rd [2021-11-13 18:00:48,684 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_rd [2021-11-13 18:00:48,684 INFO L130 BoogieDeclarations]: Found specification of procedure DevicePresent [2021-11-13 18:00:48,685 INFO L138 BoogieDeclarations]: Found implementation of procedure DevicePresent [2021-11-13 18:00:48,685 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2021-11-13 18:00:48,686 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2021-11-13 18:00:48,686 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_ast [2021-11-13 18:00:48,686 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_ast [2021-11-13 18:00:48,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 18:00:48,687 INFO L130 BoogieDeclarations]: Found specification of procedure dc21143_infoleaf [2021-11-13 18:00:48,687 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21143_infoleaf [2021-11-13 18:00:48,687 INFO L130 BoogieDeclarations]: Found specification of procedure set_multicast_list [2021-11-13 18:00:48,687 INFO L138 BoogieDeclarations]: Found implementation of procedure set_multicast_list [2021-11-13 18:00:48,687 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-13 18:00:48,688 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-13 18:00:48,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-11-13 18:00:48,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-11-13 18:00:48,688 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-13 18:00:48,688 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-13 18:00:48,689 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2021-11-13 18:00:48,689 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2021-11-13 18:00:48,689 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2021-11-13 18:00:48,689 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_sw_reset [2021-11-13 18:00:48,689 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_sw_reset [2021-11-13 18:00:48,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 18:00:48,690 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u_char~0~X~$Pointer$~TO~int [2021-11-13 18:00:48,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u_char~0~X~$Pointer$~TO~int [2021-11-13 18:00:48,691 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2021-11-13 18:00:48,694 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2021-11-13 18:00:48,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-13 18:00:48,695 INFO L130 BoogieDeclarations]: Found specification of procedure is_10_up [2021-11-13 18:00:48,695 INFO L138 BoogieDeclarations]: Found implementation of procedure is_10_up [2021-11-13 18:00:48,696 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-11-13 18:00:48,696 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-11-13 18:00:48,697 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2021-11-13 18:00:48,698 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2021-11-13 18:00:48,698 INFO L130 BoogieDeclarations]: Found specification of procedure is_anc_capable [2021-11-13 18:00:48,703 INFO L138 BoogieDeclarations]: Found implementation of procedure is_anc_capable [2021-11-13 18:00:48,703 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2021-11-13 18:00:48,703 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2021-11-13 18:00:48,704 INFO L130 BoogieDeclarations]: Found specification of procedure type1_infoblock [2021-11-13 18:00:48,704 INFO L138 BoogieDeclarations]: Found implementation of procedure type1_infoblock [2021-11-13 18:00:48,704 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2021-11-13 18:00:48,704 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2021-11-13 18:00:48,704 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-13 18:00:48,704 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-13 18:00:48,704 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-11-13 18:00:48,705 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-11-13 18:00:48,705 INFO L130 BoogieDeclarations]: Found specification of procedure is_spd_100 [2021-11-13 18:00:48,705 INFO L138 BoogieDeclarations]: Found implementation of procedure is_spd_100 [2021-11-13 18:00:48,705 INFO L130 BoogieDeclarations]: Found specification of procedure dc21140_infoleaf [2021-11-13 18:00:48,705 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21140_infoleaf [2021-11-13 18:00:48,705 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-13 18:00:48,705 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-13 18:00:48,706 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-13 18:00:48,706 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-13 18:00:48,706 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2021-11-13 18:00:48,706 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2021-11-13 18:00:48,706 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_queue_pkt [2021-11-13 18:00:48,706 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_queue_pkt [2021-11-13 18:00:48,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-13 18:00:48,707 INFO L130 BoogieDeclarations]: Found specification of procedure sendto_mii [2021-11-13 18:00:48,707 INFO L138 BoogieDeclarations]: Found implementation of procedure sendto_mii [2021-11-13 18:00:48,707 INFO L130 BoogieDeclarations]: Found specification of procedure test_media [2021-11-13 18:00:48,707 INFO L138 BoogieDeclarations]: Found implementation of procedure test_media [2021-11-13 18:00:48,707 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_free_rx_buffs [2021-11-13 18:00:48,707 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_free_rx_buffs [2021-11-13 18:00:48,708 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-13 18:00:48,708 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-13 18:00:48,708 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-13 18:00:48,708 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-13 18:00:48,708 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-13 18:00:48,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-13 18:00:48,708 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_free_tx_buffs [2021-11-13 18:00:48,709 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_free_tx_buffs [2021-11-13 18:00:48,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-13 18:00:48,709 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_insert [2021-11-13 18:00:48,709 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_insert [2021-11-13 18:00:48,709 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-11-13 18:00:48,709 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-11-13 18:00:48,709 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-13 18:00:48,710 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-13 18:00:48,710 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-13 18:00:48,710 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-13 18:00:48,710 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-13 18:00:48,710 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2021-11-13 18:00:48,711 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2021-11-13 18:00:48,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-13 18:00:48,711 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-13 18:00:48,711 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_init [2021-11-13 18:00:48,711 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_init [2021-11-13 18:00:48,711 INFO L130 BoogieDeclarations]: Found specification of procedure ping_media [2021-11-13 18:00:48,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ping_media [2021-11-13 18:00:48,712 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-13 18:00:48,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-13 18:00:48,712 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-11-13 18:00:48,712 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-11-13 18:00:48,712 INFO L130 BoogieDeclarations]: Found specification of procedure srom_autoconf [2021-11-13 18:00:48,712 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_autoconf [2021-11-13 18:00:48,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-13 18:00:48,713 INFO L130 BoogieDeclarations]: Found specification of procedure srom_exec [2021-11-13 18:00:48,713 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_exec [2021-11-13 18:00:48,713 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-13 18:00:48,713 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-13 18:00:48,713 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-11-13 18:00:48,713 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-11-13 18:00:48,714 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-13 18:00:48,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-13 18:00:48,714 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_tx [2021-11-13 18:00:48,714 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_tx [2021-11-13 18:00:48,714 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-11-13 18:00:48,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-11-13 18:00:48,714 INFO L130 BoogieDeclarations]: Found specification of procedure gep_wr [2021-11-13 18:00:48,714 INFO L138 BoogieDeclarations]: Found implementation of procedure gep_wr [2021-11-13 18:00:48,715 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2021-11-13 18:00:48,715 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2021-11-13 18:00:48,715 INFO L130 BoogieDeclarations]: Found specification of procedure srom_rd [2021-11-13 18:00:48,715 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_rd [2021-11-13 18:00:48,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 18:00:48,715 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-13 18:00:48,716 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-13 18:00:48,716 INFO L130 BoogieDeclarations]: Found specification of procedure sendto_srom [2021-11-13 18:00:48,716 INFO L138 BoogieDeclarations]: Found implementation of procedure sendto_srom [2021-11-13 18:00:48,716 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-11-13 18:00:48,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-11-13 18:00:48,716 INFO L130 BoogieDeclarations]: Found specification of procedure SetMulticastFilter [2021-11-13 18:00:48,716 INFO L138 BoogieDeclarations]: Found implementation of procedure SetMulticastFilter [2021-11-13 18:00:48,717 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-11-13 18:00:48,717 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-11-13 18:00:48,717 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_ioctl [2021-11-13 18:00:48,717 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_ioctl [2021-11-13 18:00:48,717 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_get_cache [2021-11-13 18:00:48,717 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_get_cache [2021-11-13 18:00:48,717 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-13 18:00:48,718 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-13 18:00:48,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 18:00:48,718 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-11-13 18:00:48,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-11-13 18:00:48,718 INFO L130 BoogieDeclarations]: Found specification of procedure getfrom_srom [2021-11-13 18:00:48,718 INFO L138 BoogieDeclarations]: Found implementation of procedure getfrom_srom [2021-11-13 18:00:48,718 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_3 [2021-11-13 18:00:48,718 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_3 [2021-11-13 18:00:48,719 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_2 [2021-11-13 18:00:48,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_2 [2021-11-13 18:00:48,719 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-13 18:00:48,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-13 18:00:48,719 INFO L130 BoogieDeclarations]: Found specification of procedure mii_swap [2021-11-13 18:00:48,719 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_swap [2021-11-13 18:00:48,719 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_suspect_state [2021-11-13 18:00:48,720 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_suspect_state [2021-11-13 18:00:48,720 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_dbg_mii [2021-11-13 18:00:48,720 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_dbg_mii [2021-11-13 18:00:48,720 INFO L130 BoogieDeclarations]: Found specification of procedure compact_infoblock [2021-11-13 18:00:48,720 INFO L138 BoogieDeclarations]: Found implementation of procedure compact_infoblock [2021-11-13 18:00:48,721 INFO L130 BoogieDeclarations]: Found specification of procedure gep_rd [2021-11-13 18:00:48,722 INFO L138 BoogieDeclarations]: Found implementation of procedure gep_rd [2021-11-13 18:00:48,722 INFO L130 BoogieDeclarations]: Found specification of procedure mii_address [2021-11-13 18:00:48,722 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_address [2021-11-13 18:00:48,723 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_reset_phy [2021-11-13 18:00:48,723 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_reset_phy [2021-11-13 18:00:48,723 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_putb_cache [2021-11-13 18:00:48,723 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_putb_cache [2021-11-13 18:00:48,723 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_free_tx_buff [2021-11-13 18:00:48,723 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_free_tx_buff [2021-11-13 18:00:48,724 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_setup_intr [2021-11-13 18:00:48,726 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_setup_intr [2021-11-13 18:00:48,726 INFO L130 BoogieDeclarations]: Found specification of procedure dc21142_infoleaf [2021-11-13 18:00:48,726 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21142_infoleaf [2021-11-13 18:00:48,726 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_get_stats [2021-11-13 18:00:48,726 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_get_stats [2021-11-13 18:00:48,727 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_save_skbs [2021-11-13 18:00:48,727 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_save_skbs [2021-11-13 18:00:48,727 INFO L130 BoogieDeclarations]: Found specification of procedure dc2114x_autoconf [2021-11-13 18:00:48,727 INFO L138 BoogieDeclarations]: Found implementation of procedure dc2114x_autoconf [2021-11-13 18:00:48,727 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-11-13 18:00:48,727 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-11-13 18:00:48,727 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2021-11-13 18:00:48,728 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2021-11-13 18:00:48,728 INFO L130 BoogieDeclarations]: Found specification of procedure srom_map_media [2021-11-13 18:00:48,728 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_map_media [2021-11-13 18:00:48,728 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2021-11-13 18:00:48,728 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2021-11-13 18:00:48,728 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_close [2021-11-13 18:00:48,728 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_close [2021-11-13 18:00:48,728 INFO L130 BoogieDeclarations]: Found specification of procedure yawn [2021-11-13 18:00:48,729 INFO L138 BoogieDeclarations]: Found implementation of procedure yawn [2021-11-13 18:00:48,729 INFO L130 BoogieDeclarations]: Found specification of procedure mii_wdata [2021-11-13 18:00:48,729 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_wdata [2021-11-13 18:00:48,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 18:00:48,729 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_init_connection [2021-11-13 18:00:48,729 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_init_connection [2021-11-13 18:00:48,729 INFO L130 BoogieDeclarations]: Found specification of procedure mii_wr [2021-11-13 18:00:48,730 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_wr [2021-11-13 18:00:48,730 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-13 18:00:48,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 18:00:48,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 18:00:48,730 INFO L130 BoogieDeclarations]: Found specification of procedure dc21040_state [2021-11-13 18:00:48,730 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21040_state [2021-11-13 18:00:50,453 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-13 18:01:19,180 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 18:01:19,180 INFO L299 CfgBuilder]: Removed 17 assume(true) statements. [2021-11-13 18:01:19,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:01:19 BoogieIcfgContainer [2021-11-13 18:01:19,188 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 18:01:19,190 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 18:01:19,190 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 18:01:19,194 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 18:01:19,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 06:00:43" (1/3) ... [2021-11-13 18:01:19,195 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c0492b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:01:19, skipping insertion in model container [2021-11-13 18:01:19,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:00:47" (2/3) ... [2021-11-13 18:01:19,196 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c0492b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:01:19, skipping insertion in model container [2021-11-13 18:01:19,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:01:19" (3/3) ... [2021-11-13 18:01:19,199 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--dec--tulip--de4x5.ko-entry_point.cil.out.i [2021-11-13 18:01:19,206 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 18:01:19,207 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 18:01:19,303 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 18:01:19,311 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 18:01:19,312 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 18:01:19,450 INFO L276 IsEmpty]: Start isEmpty. Operand has 3444 states, 2469 states have (on average 1.385176184690158) internal successors, (3420), 2531 states have internal predecessors, (3420), 854 states have call successors, (854), 136 states have call predecessors, (854), 135 states have return successors, (846), 835 states have call predecessors, (846), 846 states have call successors, (846) [2021-11-13 18:01:19,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-13 18:01:19,479 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:01:19,480 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-11-13 18:01:19,481 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:01:19,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:01:19,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1090600094, now seen corresponding path program 1 times [2021-11-13 18:01:19,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:01:19,499 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350704827] [2021-11-13 18:01:19,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:01:19,501 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:01:20,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:01:20,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:01:20,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:01:20,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:01:20,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:01:20,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:01:20,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:01:20,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 18:01:20,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:01:20,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:01:20,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:01:20,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:01:20,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:01:20,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 18:01:20,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:01:20,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:01:20,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:01:20,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:01:20,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:01:20,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-13 18:01:20,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:01:20,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:01:20,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:01:20,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:01:20,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:01:20,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-13 18:01:20,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:01:20,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:01:20,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:01:20,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-13 18:01:20,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:01:20,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:01:20,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:01:20,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-13 18:01:20,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:01:20,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-13 18:01:20,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:01:20,869 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2021-11-13 18:01:20,870 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:01:20,870 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350704827] [2021-11-13 18:01:20,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350704827] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:01:20,876 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:01:20,876 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:01:20,878 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214892384] [2021-11-13 18:01:20,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:01:20,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:01:20,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:01:20,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:01:20,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:01:20,938 INFO L87 Difference]: Start difference. First operand has 3444 states, 2469 states have (on average 1.385176184690158) internal successors, (3420), 2531 states have internal predecessors, (3420), 854 states have call successors, (854), 136 states have call predecessors, (854), 135 states have return successors, (846), 835 states have call predecessors, (846), 846 states have call successors, (846) Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-13 18:01:23,049 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:01:36,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:01:36,397 INFO L93 Difference]: Finished difference Result 7373 states and 11202 transitions. [2021-11-13 18:01:36,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 18:01:36,400 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 126 [2021-11-13 18:01:36,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:01:36,493 INFO L225 Difference]: With dead ends: 7373 [2021-11-13 18:01:36,494 INFO L226 Difference]: Without dead ends: 3913 [2021-11-13 18:01:36,541 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:01:36,547 INFO L933 BasicCegarLoop]: 4153 mSDtfsCounter, 3563 mSDsluCounter, 2474 mSDsCounter, 0 mSdLazyCounter, 3869 mSolverCounterSat, 2775 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12717.63ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3584 SdHoareTripleChecker+Valid, 6627 SdHoareTripleChecker+Invalid, 6645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 107.53ms SdHoareTripleChecker+Time, 2775 IncrementalHoareTripleChecker+Valid, 3869 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14676.99ms IncrementalHoareTripleChecker+Time [2021-11-13 18:01:36,548 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3584 Valid, 6627 Invalid, 6645 Unknown, 0 Unchecked, 107.53ms Time], IncrementalHoareTripleChecker [2775 Valid, 3869 Invalid, 1 Unknown, 0 Unchecked, 14676.99ms Time] [2021-11-13 18:01:36,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3913 states. [2021-11-13 18:01:36,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3913 to 3375. [2021-11-13 18:01:36,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3375 states, 2410 states have (on average 1.3817427385892116) internal successors, (3330), 2449 states have internal predecessors, (3330), 830 states have call successors, (830), 135 states have call predecessors, (830), 134 states have return successors, (829), 818 states have call predecessors, (829), 829 states have call successors, (829) [2021-11-13 18:01:36,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3375 states to 3375 states and 4989 transitions. [2021-11-13 18:01:36,982 INFO L78 Accepts]: Start accepts. Automaton has 3375 states and 4989 transitions. Word has length 126 [2021-11-13 18:01:36,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:01:36,983 INFO L470 AbstractCegarLoop]: Abstraction has 3375 states and 4989 transitions. [2021-11-13 18:01:36,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-13 18:01:36,984 INFO L276 IsEmpty]: Start isEmpty. Operand 3375 states and 4989 transitions. [2021-11-13 18:01:36,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-13 18:01:36,994 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:01:36,994 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-11-13 18:01:36,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 18:01:36,995 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:01:36,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:01:36,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1978075498, now seen corresponding path program 1 times [2021-11-13 18:01:36,996 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:01:36,996 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063064068] [2021-11-13 18:01:36,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:01:36,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:01:37,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:01:37,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:01:37,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:01:37,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:01:37,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:01:37,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:01:37,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:01:37,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 18:01:37,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:01:37,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:01:37,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:01:37,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:01:37,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:01:37,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 18:01:37,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:01:37,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:01:37,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:01:37,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:01:37,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:01:37,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-13 18:01:37,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:01:37,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:01:37,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:01:37,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:01:37,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:01:37,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-13 18:01:37,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:01:37,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:01:37,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:01:37,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-13 18:01:37,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:01:37,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:01:37,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:01:37,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-13 18:01:37,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:01:37,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-13 18:01:37,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:01:37,635 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2021-11-13 18:01:37,635 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:01:37,642 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063064068] [2021-11-13 18:01:37,646 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063064068] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:01:37,646 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:01:37,646 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 18:01:37,646 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154637883] [2021-11-13 18:01:37,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:01:37,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:01:37,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:01:37,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:01:37,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:01:37,650 INFO L87 Difference]: Start difference. First operand 3375 states and 4989 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-13 18:01:39,721 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:01:41,851 WARN L515 Checker$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 18:02:09,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:02:09,769 INFO L93 Difference]: Finished difference Result 10892 states and 16259 transitions. [2021-11-13 18:02:09,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 18:02:09,772 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 126 [2021-11-13 18:02:09,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:02:09,860 INFO L225 Difference]: With dead ends: 10892 [2021-11-13 18:02:09,861 INFO L226 Difference]: Without dead ends: 7537 [2021-11-13 18:02:09,893 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-13 18:02:09,895 INFO L933 BasicCegarLoop]: 4882 mSDtfsCounter, 10305 mSDsluCounter, 7596 mSDsCounter, 0 mSdLazyCounter, 9113 mSolverCounterSat, 6107 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27477.08ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10643 SdHoareTripleChecker+Valid, 12478 SdHoareTripleChecker+Invalid, 15222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 152.42ms SdHoareTripleChecker+Time, 6107 IncrementalHoareTripleChecker+Valid, 9113 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31077.12ms IncrementalHoareTripleChecker+Time [2021-11-13 18:02:09,895 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10643 Valid, 12478 Invalid, 15222 Unknown, 0 Unchecked, 152.42ms Time], IncrementalHoareTripleChecker [6107 Valid, 9113 Invalid, 2 Unknown, 0 Unchecked, 31077.12ms Time] [2021-11-13 18:02:09,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7537 states. [2021-11-13 18:02:10,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7537 to 6460. [2021-11-13 18:02:10,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6460 states, 4622 states have (on average 1.3823020337516227) internal successors, (6389), 4699 states have internal predecessors, (6389), 1578 states have call successors, (1578), 260 states have call predecessors, (1578), 259 states have return successors, (1577), 1555 states have call predecessors, (1577), 1577 states have call successors, (1577) [2021-11-13 18:02:10,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6460 states to 6460 states and 9544 transitions. [2021-11-13 18:02:10,434 INFO L78 Accepts]: Start accepts. Automaton has 6460 states and 9544 transitions. Word has length 126 [2021-11-13 18:02:10,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:02:10,435 INFO L470 AbstractCegarLoop]: Abstraction has 6460 states and 9544 transitions. [2021-11-13 18:02:10,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-13 18:02:10,436 INFO L276 IsEmpty]: Start isEmpty. Operand 6460 states and 9544 transitions. [2021-11-13 18:02:10,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-11-13 18:02:10,442 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:02:10,442 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2021-11-13 18:02:10,442 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-13 18:02:10,443 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:02:10,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:02:10,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1016440010, now seen corresponding path program 1 times [2021-11-13 18:02:10,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:02:10,444 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828734541] [2021-11-13 18:02:10,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:02:10,444 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:02:10,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:02:10,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:02:10,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:02:10,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:02:10,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:02:10,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:02:10,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:02:10,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 18:02:10,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:02:10,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:02:10,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:02:10,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:02:10,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:02:11,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 18:02:11,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:02:11,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:02:11,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:02:11,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:02:11,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:02:11,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-13 18:02:11,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:02:11,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:02:11,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:02:11,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:02:11,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:02:11,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-13 18:02:11,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:02:11,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:02:11,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:02:11,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-13 18:02:11,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:02:11,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:02:11,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:02:11,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-11-13 18:02:11,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:02:11,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-11-13 18:02:11,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:02:11,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-13 18:02:11,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:02:11,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-11-13 18:02:11,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:02:11,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-13 18:02:11,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:02:11,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-13 18:02:11,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:02:11,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-11-13 18:02:11,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:02:11,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-13 18:02:11,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:02:11,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-11-13 18:02:11,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:02:11,317 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2021-11-13 18:02:11,317 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:02:11,317 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828734541] [2021-11-13 18:02:11,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828734541] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:02:11,318 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:02:11,318 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-13 18:02:11,319 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178536039] [2021-11-13 18:02:11,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:02:11,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 18:02:11,321 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:02:11,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 18:02:11,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-13 18:02:11,323 INFO L87 Difference]: Start difference. First operand 6460 states and 9544 transitions. Second operand has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 4 states have internal predecessors, (75), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-13 18:02:13,397 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:02:15,601 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:02:17,720 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:02:57,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:02:57,954 INFO L93 Difference]: Finished difference Result 22449 states and 34346 transitions. [2021-11-13 18:02:57,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-13 18:02:57,964 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 4 states have internal predecessors, (75), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 171 [2021-11-13 18:02:57,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:02:58,144 INFO L225 Difference]: With dead ends: 22449 [2021-11-13 18:02:58,144 INFO L226 Difference]: Without dead ends: 16009 [2021-11-13 18:02:58,208 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2021-11-13 18:02:58,209 INFO L933 BasicCegarLoop]: 4411 mSDtfsCounter, 15636 mSDsluCounter, 14161 mSDsCounter, 0 mSdLazyCounter, 19144 mSolverCounterSat, 10637 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40043.86ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 16059 SdHoareTripleChecker+Valid, 18572 SdHoareTripleChecker+Invalid, 29784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 224.54ms SdHoareTripleChecker+Time, 10637 IncrementalHoareTripleChecker+Valid, 19144 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45156.30ms IncrementalHoareTripleChecker+Time [2021-11-13 18:02:58,209 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16059 Valid, 18572 Invalid, 29784 Unknown, 0 Unchecked, 224.54ms Time], IncrementalHoareTripleChecker [10637 Valid, 19144 Invalid, 3 Unknown, 0 Unchecked, 45156.30ms Time] [2021-11-13 18:02:58,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16009 states. [2021-11-13 18:02:59,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16009 to 13933. [2021-11-13 18:02:59,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13933 states, 10029 states have (on average 1.35995612723103) internal successors, (13639), 9981 states have internal predecessors, (13639), 3244 states have call successors, (3244), 520 states have call predecessors, (3244), 659 states have return successors, (4139), 3531 states have call predecessors, (4139), 3243 states have call successors, (4139) [2021-11-13 18:02:59,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13933 states to 13933 states and 21022 transitions. [2021-11-13 18:02:59,419 INFO L78 Accepts]: Start accepts. Automaton has 13933 states and 21022 transitions. Word has length 171 [2021-11-13 18:02:59,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:02:59,422 INFO L470 AbstractCegarLoop]: Abstraction has 13933 states and 21022 transitions. [2021-11-13 18:02:59,423 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 4 states have internal predecessors, (75), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-13 18:02:59,423 INFO L276 IsEmpty]: Start isEmpty. Operand 13933 states and 21022 transitions. [2021-11-13 18:02:59,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-11-13 18:02:59,429 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:02:59,429 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2021-11-13 18:02:59,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-13 18:02:59,430 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:02:59,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:02:59,430 INFO L85 PathProgramCache]: Analyzing trace with hash 302587599, now seen corresponding path program 1 times [2021-11-13 18:02:59,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:02:59,430 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784384563] [2021-11-13 18:02:59,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:02:59,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:02:59,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:02:59,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:02:59,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:02:59,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:02:59,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:02:59,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:02:59,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:02:59,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 18:02:59,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:02:59,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:02:59,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:02:59,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:02:59,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:02:59,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 18:02:59,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:02:59,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:02:59,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:02:59,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:02:59,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:02:59,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-13 18:02:59,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:02:59,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:02:59,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:02:59,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:02:59,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:02:59,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-13 18:02:59,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:02:59,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:02:59,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:02:59,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-13 18:02:59,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:02:59,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:02:59,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:02:59,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-13 18:02:59,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:02:59,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-11-13 18:02:59,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:02:59,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-13 18:02:59,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:02:59,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-13 18:02:59,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:03:00,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-11-13 18:03:00,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:03:00,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-13 18:03:00,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:03:00,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-13 18:03:00,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:03:00,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-13 18:03:00,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:03:00,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-13 18:03:00,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:03:00,049 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2021-11-13 18:03:00,049 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:03:00,049 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784384563] [2021-11-13 18:03:00,049 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784384563] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:03:00,050 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:03:00,050 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-13 18:03:00,050 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081392434] [2021-11-13 18:03:00,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:03:00,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 18:03:00,051 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:03:00,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 18:03:00,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-13 18:03:00,052 INFO L87 Difference]: Start difference. First operand 13933 states and 21022 transitions. Second operand has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 4 states have internal predecessors, (78), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-13 18:03:02,110 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:03:04,233 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:03:36,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:03:36,934 INFO L93 Difference]: Finished difference Result 45906 states and 69967 transitions. [2021-11-13 18:03:36,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-13 18:03:36,934 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 4 states have internal predecessors, (78), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 174 [2021-11-13 18:03:36,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:03:37,138 INFO L225 Difference]: With dead ends: 45906 [2021-11-13 18:03:37,138 INFO L226 Difference]: Without dead ends: 31993 [2021-11-13 18:03:37,210 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2021-11-13 18:03:37,213 INFO L933 BasicCegarLoop]: 4075 mSDtfsCounter, 16426 mSDsluCounter, 12319 mSDsCounter, 0 mSdLazyCounter, 15793 mSolverCounterSat, 10827 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30532.05ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 16863 SdHoareTripleChecker+Valid, 16394 SdHoareTripleChecker+Invalid, 26622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 153.04ms SdHoareTripleChecker+Time, 10827 IncrementalHoareTripleChecker+Valid, 15793 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35187.41ms IncrementalHoareTripleChecker+Time [2021-11-13 18:03:37,214 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16863 Valid, 16394 Invalid, 26622 Unknown, 0 Unchecked, 153.04ms Time], IncrementalHoareTripleChecker [10827 Valid, 15793 Invalid, 2 Unknown, 0 Unchecked, 35187.41ms Time] [2021-11-13 18:03:37,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31993 states. [2021-11-13 18:03:39,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31993 to 27847. [2021-11-13 18:03:39,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27847 states, 20045 states have (on average 1.3601895734597156) internal successors, (27265), 19965 states have internal predecessors, (27265), 6480 states have call successors, (6480), 1042 states have call predecessors, (6480), 1321 states have return successors, (8271), 7039 states have call predecessors, (8271), 6479 states have call successors, (8271) [2021-11-13 18:03:39,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27847 states to 27847 states and 42016 transitions. [2021-11-13 18:03:39,282 INFO L78 Accepts]: Start accepts. Automaton has 27847 states and 42016 transitions. Word has length 174 [2021-11-13 18:03:39,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:03:39,283 INFO L470 AbstractCegarLoop]: Abstraction has 27847 states and 42016 transitions. [2021-11-13 18:03:39,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 4 states have internal predecessors, (78), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-13 18:03:39,284 INFO L276 IsEmpty]: Start isEmpty. Operand 27847 states and 42016 transitions. [2021-11-13 18:03:39,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-11-13 18:03:39,291 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:03:39,292 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2021-11-13 18:03:39,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-13 18:03:39,292 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:03:39,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:03:39,293 INFO L85 PathProgramCache]: Analyzing trace with hash -1711587721, now seen corresponding path program 1 times [2021-11-13 18:03:39,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:03:39,293 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245556138] [2021-11-13 18:03:39,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:03:39,294 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:03:39,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:03:39,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:03:39,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:03:39,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:03:39,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:03:39,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:03:39,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:03:39,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 18:03:39,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:03:39,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:03:39,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:03:39,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:03:39,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:03:39,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 18:03:39,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:03:39,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:03:39,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:03:39,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:03:39,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:03:39,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-13 18:03:39,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:03:39,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:03:39,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:03:39,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:03:39,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:03:39,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-13 18:03:39,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:03:39,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:03:39,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:03:39,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-13 18:03:39,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:03:39,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:03:39,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:03:39,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 18:03:39,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:03:39,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-13 18:03:39,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:03:39,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-13 18:03:39,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:03:39,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-13 18:03:39,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:03:39,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-11-13 18:03:39,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:03:39,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-13 18:03:39,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:03:39,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-13 18:03:39,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:03:39,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-13 18:03:39,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:03:39,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-13 18:03:39,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:03:39,838 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2021-11-13 18:03:39,838 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:03:39,838 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245556138] [2021-11-13 18:03:39,839 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245556138] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:03:39,839 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:03:39,839 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-13 18:03:39,839 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769072663] [2021-11-13 18:03:39,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:03:39,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 18:03:39,840 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:03:39,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 18:03:39,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-13 18:03:39,841 INFO L87 Difference]: Start difference. First operand 27847 states and 42016 transitions. Second operand has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 4 states have internal predecessors, (76), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-13 18:03:41,899 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:03:44,038 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 18:04:16,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:04:16,479 INFO L93 Difference]: Finished difference Result 91784 states and 143585 transitions. [2021-11-13 18:04:16,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-13 18:04:16,479 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 4 states have internal predecessors, (76), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 172 [2021-11-13 18:04:16,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:04:16,901 INFO L225 Difference]: With dead ends: 91784 [2021-11-13 18:04:16,901 INFO L226 Difference]: Without dead ends: 63957 [2021-11-13 18:04:17,087 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2021-11-13 18:04:17,090 INFO L933 BasicCegarLoop]: 4082 mSDtfsCounter, 16343 mSDsluCounter, 12473 mSDsCounter, 0 mSdLazyCounter, 16274 mSolverCounterSat, 10924 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29281.92ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 16768 SdHoareTripleChecker+Valid, 16555 SdHoareTripleChecker+Invalid, 27200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 140.02ms SdHoareTripleChecker+Time, 10924 IncrementalHoareTripleChecker+Valid, 16274 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34300.38ms IncrementalHoareTripleChecker+Time [2021-11-13 18:04:17,090 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16768 Valid, 16555 Invalid, 27200 Unknown, 0 Unchecked, 140.02ms Time], IncrementalHoareTripleChecker [10924 Valid, 16274 Invalid, 2 Unknown, 0 Unchecked, 34300.38ms Time] [2021-11-13 18:04:17,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63957 states. [2021-11-13 18:04:20,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63957 to 56631. [2021-11-13 18:04:20,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56631 states, 40825 states have (on average 1.3554684629516227) internal successors, (55337), 40445 states have internal predecessors, (55337), 13068 states have call successors, (13068), 2086 states have call predecessors, (13068), 2737 states have return successors, (18853), 14503 states have call predecessors, (18853), 13067 states have call successors, (18853) [2021-11-13 18:04:20,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56631 states to 56631 states and 87258 transitions. [2021-11-13 18:04:20,524 INFO L78 Accepts]: Start accepts. Automaton has 56631 states and 87258 transitions. Word has length 172 [2021-11-13 18:04:20,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:04:20,526 INFO L470 AbstractCegarLoop]: Abstraction has 56631 states and 87258 transitions. [2021-11-13 18:04:20,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 4 states have internal predecessors, (76), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-13 18:04:20,526 INFO L276 IsEmpty]: Start isEmpty. Operand 56631 states and 87258 transitions. [2021-11-13 18:04:20,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-11-13 18:04:20,535 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:04:20,535 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2021-11-13 18:04:20,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-13 18:04:20,536 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:04:20,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:04:20,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1743548295, now seen corresponding path program 1 times [2021-11-13 18:04:20,537 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:04:20,537 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573087872] [2021-11-13 18:04:20,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:04:20,537 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:04:20,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:04:20,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:04:20,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:04:20,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:04:20,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:04:20,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:04:20,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:04:20,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 18:04:20,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:04:20,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:04:20,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:04:20,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:04:20,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:04:20,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 18:04:20,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:04:20,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:04:20,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:04:20,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:04:20,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:04:20,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-13 18:04:20,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:04:20,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:04:20,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:04:21,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:04:21,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:04:21,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-13 18:04:21,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:04:21,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:04:21,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:04:21,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-13 18:04:21,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:04:21,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:04:21,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:04:21,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-13 18:04:21,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:04:21,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-11-13 18:04:21,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:04:21,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-13 18:04:21,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:04:21,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-13 18:04:21,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:04:21,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-13 18:04:21,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:04:21,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-11-13 18:04:21,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:04:21,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-13 18:04:21,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:04:21,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-13 18:04:21,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:04:21,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-11-13 18:04:21,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:04:21,485 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2021-11-13 18:04:21,485 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:04:21,485 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573087872] [2021-11-13 18:04:21,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573087872] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:04:21,485 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:04:21,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-13 18:04:21,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854093296] [2021-11-13 18:04:21,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:04:21,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 18:04:21,487 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:04:21,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 18:04:21,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-13 18:04:21,487 INFO L87 Difference]: Start difference. First operand 56631 states and 87258 transitions. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 4 states have internal predecessors, (77), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-13 18:04:23,545 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:04:25,686 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 18:04:59,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:04:59,257 INFO L93 Difference]: Finished difference Result 184524 states and 295855 transitions. [2021-11-13 18:04:59,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-13 18:04:59,258 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 4 states have internal predecessors, (77), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 173 [2021-11-13 18:04:59,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:05:00,633 INFO L225 Difference]: With dead ends: 184524 [2021-11-13 18:05:00,633 INFO L226 Difference]: Without dead ends: 127913 [2021-11-13 18:05:00,913 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2021-11-13 18:05:00,914 INFO L933 BasicCegarLoop]: 4101 mSDtfsCounter, 19687 mSDsluCounter, 11572 mSDsCounter, 0 mSdLazyCounter, 13996 mSolverCounterSat, 13704 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27587.53ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 20114 SdHoareTripleChecker+Valid, 15673 SdHoareTripleChecker+Invalid, 27702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 130.62ms SdHoareTripleChecker+Time, 13704 IncrementalHoareTripleChecker+Valid, 13996 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33011.80ms IncrementalHoareTripleChecker+Time [2021-11-13 18:05:00,915 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20114 Valid, 15673 Invalid, 27702 Unknown, 0 Unchecked, 130.62ms Time], IncrementalHoareTripleChecker [13704 Valid, 13996 Invalid, 2 Unknown, 0 Unchecked, 33011.80ms Time] [2021-11-13 18:05:01,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127913 states. [2021-11-13 18:05:06,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127913 to 114219. [2021-11-13 18:05:06,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114219 states, 82405 states have (on average 1.3530368302894242) internal successors, (111497), 81421 states have internal predecessors, (111497), 26240 states have call successors, (26240), 4178 states have call predecessors, (26240), 5573 states have return successors, (42743), 29431 states have call predecessors, (42743), 26239 states have call successors, (42743) [2021-11-13 18:05:08,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114219 states to 114219 states and 180480 transitions. [2021-11-13 18:05:08,074 INFO L78 Accepts]: Start accepts. Automaton has 114219 states and 180480 transitions. Word has length 173 [2021-11-13 18:05:08,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:05:08,075 INFO L470 AbstractCegarLoop]: Abstraction has 114219 states and 180480 transitions. [2021-11-13 18:05:08,075 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 4 states have internal predecessors, (77), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-13 18:05:08,076 INFO L276 IsEmpty]: Start isEmpty. Operand 114219 states and 180480 transitions. [2021-11-13 18:05:08,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-11-13 18:05:08,083 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:05:08,084 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2021-11-13 18:05:08,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-13 18:05:08,084 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:05:08,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:05:08,085 INFO L85 PathProgramCache]: Analyzing trace with hash 923922025, now seen corresponding path program 1 times [2021-11-13 18:05:08,085 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:05:08,085 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109601765] [2021-11-13 18:05:08,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:05:08,086 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:05:08,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:08,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:05:08,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:08,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:05:08,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:08,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:05:08,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:08,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 18:05:08,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:08,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:05:08,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:08,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:05:08,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:08,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 18:05:08,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:08,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:05:08,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:08,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:05:08,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:08,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-13 18:05:08,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:08,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:05:08,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:08,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:05:08,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:08,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-13 18:05:08,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:08,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:05:08,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:08,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-13 18:05:08,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:08,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:05:08,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:08,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-11-13 18:05:08,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:08,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-13 18:05:08,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:08,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-13 18:05:08,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:08,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-13 18:05:08,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:08,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-13 18:05:08,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:08,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-11-13 18:05:08,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:08,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-13 18:05:08,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:08,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-13 18:05:08,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:08,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-13 18:05:08,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:08,600 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2021-11-13 18:05:08,600 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:05:08,600 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109601765] [2021-11-13 18:05:08,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109601765] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:05:08,601 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:05:08,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-13 18:05:08,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010279737] [2021-11-13 18:05:08,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:05:08,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 18:05:08,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:05:08,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 18:05:08,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-13 18:05:08,603 INFO L87 Difference]: Start difference. First operand 114219 states and 180480 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 4 states have internal predecessors, (79), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-13 18:05:10,665 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:05:12,829 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:05:14,992 WARN L515 Checker$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 18:05:42,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:05:42,513 INFO L93 Difference]: Finished difference Result 192427 states and 304925 transitions. [2021-11-13 18:05:42,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-13 18:05:42,514 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 4 states have internal predecessors, (79), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 175 [2021-11-13 18:05:42,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:05:43,668 INFO L225 Difference]: With dead ends: 192427 [2021-11-13 18:05:43,668 INFO L226 Difference]: Without dead ends: 128022 [2021-11-13 18:05:43,962 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=178, Unknown=0, NotChecked=0, Total=272 [2021-11-13 18:05:43,963 INFO L933 BasicCegarLoop]: 3848 mSDtfsCounter, 10276 mSDsluCounter, 8955 mSDsCounter, 0 mSdLazyCounter, 9740 mSolverCounterSat, 6374 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24040.76ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10508 SdHoareTripleChecker+Valid, 12803 SdHoareTripleChecker+Invalid, 16117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 108.42ms SdHoareTripleChecker+Time, 6374 IncrementalHoareTripleChecker+Valid, 9740 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28377.57ms IncrementalHoareTripleChecker+Time [2021-11-13 18:05:43,964 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10508 Valid, 12803 Invalid, 16117 Unknown, 0 Unchecked, 108.42ms Time], IncrementalHoareTripleChecker [6374 Valid, 9740 Invalid, 3 Unknown, 0 Unchecked, 28377.57ms Time] [2021-11-13 18:05:44,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128022 states. [2021-11-13 18:05:49,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128022 to 114283. [2021-11-13 18:05:49,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114283 states, 82469 states have (on average 1.352762856346021) internal successors, (111561), 81469 states have internal predecessors, (111561), 26224 states have call successors, (26224), 4194 states have call predecessors, (26224), 5589 states have return successors, (42727), 29431 states have call predecessors, (42727), 26223 states have call successors, (42727) [2021-11-13 18:05:51,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114283 states to 114283 states and 180512 transitions. [2021-11-13 18:05:51,171 INFO L78 Accepts]: Start accepts. Automaton has 114283 states and 180512 transitions. Word has length 175 [2021-11-13 18:05:51,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:05:51,172 INFO L470 AbstractCegarLoop]: Abstraction has 114283 states and 180512 transitions. [2021-11-13 18:05:51,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 4 states have internal predecessors, (79), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-13 18:05:51,173 INFO L276 IsEmpty]: Start isEmpty. Operand 114283 states and 180512 transitions. [2021-11-13 18:05:51,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2021-11-13 18:05:51,182 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:05:51,183 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2021-11-13 18:05:51,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-13 18:05:51,183 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:05:51,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:05:51,184 INFO L85 PathProgramCache]: Analyzing trace with hash 835102508, now seen corresponding path program 1 times [2021-11-13 18:05:51,184 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:05:51,184 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922643110] [2021-11-13 18:05:51,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:05:51,185 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:05:51,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:51,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:05:51,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:51,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:05:51,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:51,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:05:51,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:51,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 18:05:51,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:51,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:05:51,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:51,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:05:51,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:51,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 18:05:51,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:51,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:05:51,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:51,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:05:51,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:51,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-13 18:05:51,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:51,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:05:51,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:51,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:05:51,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:51,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-13 18:05:51,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:51,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:05:51,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:51,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-13 18:05:51,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:51,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:05:51,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:51,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-11-13 18:05:51,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:51,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-11-13 18:05:51,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:51,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-11-13 18:05:51,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:51,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-13 18:05:51,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:51,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-13 18:05:51,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:51,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-11-13 18:05:51,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:51,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-11-13 18:05:51,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:51,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-11-13 18:05:51,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:51,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-11-13 18:05:51,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:51,723 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2021-11-13 18:05:51,723 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:05:51,723 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922643110] [2021-11-13 18:05:51,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922643110] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:05:51,724 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:05:51,724 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-13 18:05:51,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752463729] [2021-11-13 18:05:51,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:05:51,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 18:05:51,725 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:05:51,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 18:05:51,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-13 18:05:51,726 INFO L87 Difference]: Start difference. First operand 114283 states and 180512 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-13 18:05:53,791 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:05:55,970 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:06:27,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:06:27,187 INFO L93 Difference]: Finished difference Result 192571 states and 304925 transitions. [2021-11-13 18:06:27,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-13 18:06:27,188 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 176 [2021-11-13 18:06:27,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:06:28,515 INFO L225 Difference]: With dead ends: 192571 [2021-11-13 18:06:28,515 INFO L226 Difference]: Without dead ends: 128086 [2021-11-13 18:06:28,851 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=94, Invalid=178, Unknown=0, NotChecked=0, Total=272 [2021-11-13 18:06:28,852 INFO L933 BasicCegarLoop]: 3874 mSDtfsCounter, 11925 mSDsluCounter, 8070 mSDsCounter, 0 mSdLazyCounter, 8196 mSolverCounterSat, 7735 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24175.93ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12157 SdHoareTripleChecker+Valid, 11944 SdHoareTripleChecker+Invalid, 15933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 210.27ms SdHoareTripleChecker+Time, 7735 IncrementalHoareTripleChecker+Valid, 8196 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29083.47ms IncrementalHoareTripleChecker+Time [2021-11-13 18:06:28,852 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12157 Valid, 11944 Invalid, 15933 Unknown, 0 Unchecked, 210.27ms Time], IncrementalHoareTripleChecker [7735 Valid, 8196 Invalid, 2 Unknown, 0 Unchecked, 29083.47ms Time] [2021-11-13 18:06:28,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128086 states. [2021-11-13 18:06:35,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128086 to 114347. [2021-11-13 18:06:35,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114347 states, 82533 states have (on average 1.35248930730738) internal successors, (111625), 81517 states have internal predecessors, (111625), 26208 states have call successors, (26208), 4210 states have call predecessors, (26208), 5605 states have return successors, (42711), 29431 states have call predecessors, (42711), 26207 states have call successors, (42711) [2021-11-13 18:06:36,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114347 states to 114347 states and 180544 transitions. [2021-11-13 18:06:37,010 INFO L78 Accepts]: Start accepts. Automaton has 114347 states and 180544 transitions. Word has length 176 [2021-11-13 18:06:37,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:06:37,015 INFO L470 AbstractCegarLoop]: Abstraction has 114347 states and 180544 transitions. [2021-11-13 18:06:37,015 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-13 18:06:37,015 INFO L276 IsEmpty]: Start isEmpty. Operand 114347 states and 180544 transitions. [2021-11-13 18:06:37,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-11-13 18:06:37,023 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:06:37,024 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2021-11-13 18:06:37,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-13 18:06:37,024 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:06:37,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:06:37,025 INFO L85 PathProgramCache]: Analyzing trace with hash -691735148, now seen corresponding path program 1 times [2021-11-13 18:06:37,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:06:37,025 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678162324] [2021-11-13 18:06:37,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:06:37,026 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:06:37,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:37,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:06:37,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:37,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:06:37,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:37,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:06:37,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:37,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 18:06:37,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:37,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:06:37,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:37,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:06:37,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:37,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 18:06:37,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:37,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:06:37,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:37,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:06:37,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:37,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-13 18:06:37,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:37,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:06:37,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:37,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:06:37,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:37,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-13 18:06:37,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:37,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:06:37,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:37,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-13 18:06:37,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:37,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:06:37,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:37,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-13 18:06:37,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:37,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-11-13 18:06:37,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:37,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-13 18:06:37,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:37,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-13 18:06:37,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:37,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-11-13 18:06:37,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:37,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-13 18:06:37,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:37,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-13 18:06:37,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:37,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-13 18:06:37,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:37,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-13 18:06:37,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:37,763 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2021-11-13 18:06:37,763 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:06:37,763 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678162324] [2021-11-13 18:06:37,764 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678162324] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:06:37,764 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:06:37,764 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-13 18:06:37,764 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732818302] [2021-11-13 18:06:37,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:06:37,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 18:06:37,765 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:06:37,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 18:06:37,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-13 18:06:37,766 INFO L87 Difference]: Start difference. First operand 114347 states and 180544 transitions. Second operand has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 4 states have internal predecessors, (78), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-13 18:06:39,825 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:06:42,019 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []