./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-vmxnet3-vmxnet3.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-vmxnet3-vmxnet3.cil.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 15bbc54f53a5b4d34004632abf569b960acfb9bb9ac53557ad529439e4f67d1f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-17 11:39:13,416 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-17 11:39:13,418 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-17 11:39:13,468 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-17 11:39:13,468 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-17 11:39:13,469 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-17 11:39:13,470 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-17 11:39:13,479 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-17 11:39:13,480 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-17 11:39:13,481 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-17 11:39:13,481 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-17 11:39:13,482 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-17 11:39:13,483 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-17 11:39:13,486 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-17 11:39:13,487 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-17 11:39:13,490 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-17 11:39:13,491 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-17 11:39:13,491 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-17 11:39:13,495 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-17 11:39:13,496 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-17 11:39:13,497 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-17 11:39:13,501 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-17 11:39:13,502 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-17 11:39:13,503 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-17 11:39:13,504 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-17 11:39:13,504 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-17 11:39:13,505 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-17 11:39:13,505 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-17 11:39:13,505 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-17 11:39:13,506 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-17 11:39:13,506 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-17 11:39:13,507 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-17 11:39:13,507 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-17 11:39:13,508 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-17 11:39:13,508 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-17 11:39:13,508 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-17 11:39:13,509 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-17 11:39:13,509 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-17 11:39:13,509 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-17 11:39:13,510 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-17 11:39:13,510 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-17 11:39:13,511 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-17 11:39:13,530 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-17 11:39:13,531 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-17 11:39:13,531 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-17 11:39:13,531 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-17 11:39:13,532 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-17 11:39:13,532 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-17 11:39:13,532 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-17 11:39:13,533 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-17 11:39:13,533 INFO L138 SettingsManager]: * Use SBE=true [2021-11-17 11:39:13,533 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-17 11:39:13,534 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-17 11:39:13,534 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-17 11:39:13,534 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-17 11:39:13,534 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-17 11:39:13,534 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-17 11:39:13,534 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-17 11:39:13,534 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-17 11:39:13,535 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-17 11:39:13,535 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-17 11:39:13,543 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-17 11:39:13,543 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-17 11:39:13,543 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 11:39:13,544 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-17 11:39:13,544 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-17 11:39:13,544 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-17 11:39:13,544 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-17 11:39:13,544 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-17 11:39:13,544 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-17 11:39:13,545 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-17 11:39:13,545 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-17 11:39:13,545 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-17 11:39:13,545 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 15bbc54f53a5b4d34004632abf569b960acfb9bb9ac53557ad529439e4f67d1f [2021-11-17 11:39:13,727 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-17 11:39:13,740 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-17 11:39:13,742 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-17 11:39:13,742 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-17 11:39:13,755 INFO L275 PluginConnector]: CDTParser initialized [2021-11-17 11:39:13,756 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-vmxnet3-vmxnet3.cil.i [2021-11-17 11:39:13,790 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4eeae34be/96f3b4796b6d418e99e05be5a6cc09e1/FLAGcdf49d30f [2021-11-17 11:39:14,450 INFO L306 CDTParser]: Found 1 translation units. [2021-11-17 11:39:14,451 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-vmxnet3-vmxnet3.cil.i [2021-11-17 11:39:14,499 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4eeae34be/96f3b4796b6d418e99e05be5a6cc09e1/FLAGcdf49d30f [2021-11-17 11:39:14,546 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4eeae34be/96f3b4796b6d418e99e05be5a6cc09e1 [2021-11-17 11:39:14,548 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-17 11:39:14,549 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-17 11:39:14,550 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-17 11:39:14,550 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-17 11:39:14,552 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-17 11:39:14,553 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 11:39:14" (1/1) ... [2021-11-17 11:39:14,554 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15b49061 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:39:14, skipping insertion in model container [2021-11-17 11:39:14,554 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 11:39:14" (1/1) ... [2021-11-17 11:39:14,559 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-17 11:39:14,698 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-17 11:39:17,057 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-vmxnet3-vmxnet3.cil.i[507435,507448] [2021-11-17 11:39:17,059 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-vmxnet3-vmxnet3.cil.i[507582,507595] [2021-11-17 11:39:17,060 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-vmxnet3-vmxnet3.cil.i[507721,507734] [2021-11-17 11:39:17,060 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-vmxnet3-vmxnet3.cil.i[507879,507892] [2021-11-17 11:39:17,079 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 11:39:17,131 INFO L203 MainTranslator]: Completed pre-run [2021-11-17 11:39:17,585 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-vmxnet3-vmxnet3.cil.i[507435,507448] [2021-11-17 11:39:17,586 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-vmxnet3-vmxnet3.cil.i[507582,507595] [2021-11-17 11:39:17,586 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-vmxnet3-vmxnet3.cil.i[507721,507734] [2021-11-17 11:39:17,586 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-vmxnet3-vmxnet3.cil.i[507879,507892] [2021-11-17 11:39:17,593 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 11:39:17,734 INFO L208 MainTranslator]: Completed translation [2021-11-17 11:39:17,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:39:17 WrapperNode [2021-11-17 11:39:17,735 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-17 11:39:17,736 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-17 11:39:17,736 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-17 11:39:17,736 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-17 11:39:17,741 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:39:17" (1/1) ... [2021-11-17 11:39:17,856 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:39:17" (1/1) ... [2021-11-17 11:39:18,137 INFO L137 Inliner]: procedures = 560, calls = 3962, calls flagged for inlining = 328, calls inlined = 280, statements flattened = 8580 [2021-11-17 11:39:18,138 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-17 11:39:18,155 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-17 11:39:18,155 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-17 11:39:18,156 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-17 11:39:18,163 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:39:17" (1/1) ... [2021-11-17 11:39:18,164 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:39:17" (1/1) ... [2021-11-17 11:39:18,208 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:39:17" (1/1) ... [2021-11-17 11:39:18,208 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:39:17" (1/1) ... [2021-11-17 11:39:18,339 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:39:17" (1/1) ... [2021-11-17 11:39:18,364 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:39:17" (1/1) ... [2021-11-17 11:39:18,393 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:39:17" (1/1) ... [2021-11-17 11:39:18,428 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-17 11:39:18,429 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-17 11:39:18,429 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-17 11:39:18,430 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-17 11:39:18,431 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:39:17" (1/1) ... [2021-11-17 11:39:18,436 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 11:39:18,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 11:39:18,480 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-17 11:39:18,504 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-17 11:39:18,516 INFO L130 BoogieDeclarations]: Found specification of procedure vmxnet3_tq_stop [2021-11-17 11:39:18,516 INFO L138 BoogieDeclarations]: Found implementation of procedure vmxnet3_tq_stop [2021-11-17 11:39:18,516 INFO L130 BoogieDeclarations]: Found specification of procedure vmxnet3_cmd_ring_desc_avail [2021-11-17 11:39:18,516 INFO L138 BoogieDeclarations]: Found implementation of procedure vmxnet3_cmd_ring_desc_avail [2021-11-17 11:39:18,517 INFO L130 BoogieDeclarations]: Found specification of procedure vmxnet3_reset_dev [2021-11-17 11:39:18,517 INFO L138 BoogieDeclarations]: Found implementation of procedure vmxnet3_reset_dev [2021-11-17 11:39:18,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-17 11:39:18,517 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-17 11:39:18,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_0_6 [2021-11-17 11:39:18,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_0_6 [2021-11-17 11:39:18,517 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-11-17 11:39:18,517 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-11-17 11:39:18,518 INFO L130 BoogieDeclarations]: Found specification of procedure vmxnet3_resume [2021-11-17 11:39:18,518 INFO L138 BoogieDeclarations]: Found implementation of procedure vmxnet3_resume [2021-11-17 11:39:18,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-17 11:39:18,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-17 11:39:18,518 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-17 11:39:18,518 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-17 11:39:18,518 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2021-11-17 11:39:18,518 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2021-11-17 11:39:18,518 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-17 11:39:18,519 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-17 11:39:18,519 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-17 11:39:18,519 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-17 11:39:18,519 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-17 11:39:18,519 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-17 11:39:18,520 INFO L130 BoogieDeclarations]: Found specification of procedure vmxnet3_rq_alloc_rx_buf [2021-11-17 11:39:18,520 INFO L138 BoogieDeclarations]: Found implementation of procedure vmxnet3_rq_alloc_rx_buf [2021-11-17 11:39:18,520 INFO L130 BoogieDeclarations]: Found specification of procedure dma_zalloc_coherent [2021-11-17 11:39:18,520 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_zalloc_coherent [2021-11-17 11:39:18,520 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2021-11-17 11:39:18,520 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2021-11-17 11:39:18,520 INFO L130 BoogieDeclarations]: Found specification of procedure vmxnet3_get_sset_count [2021-11-17 11:39:18,520 INFO L138 BoogieDeclarations]: Found implementation of procedure vmxnet3_get_sset_count [2021-11-17 11:39:18,520 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-17 11:39:18,521 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-17 11:39:18,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-17 11:39:18,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-17 11:39:18,521 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-17 11:39:18,521 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-17 11:39:18,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-17 11:39:18,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-17 11:39:18,522 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-17 11:39:18,522 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-17 11:39:18,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-17 11:39:18,522 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-17 11:39:18,522 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-17 11:39:18,522 INFO L130 BoogieDeclarations]: Found specification of procedure vmxnet3_restore_vlan [2021-11-17 11:39:18,522 INFO L138 BoogieDeclarations]: Found implementation of procedure vmxnet3_restore_vlan [2021-11-17 11:39:18,523 INFO L130 BoogieDeclarations]: Found specification of procedure vmxnet3_comp_ring_adv_next2proc [2021-11-17 11:39:18,523 INFO L138 BoogieDeclarations]: Found implementation of procedure vmxnet3_comp_ring_adv_next2proc [2021-11-17 11:39:18,523 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-17 11:39:18,524 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-17 11:39:18,524 INFO L130 BoogieDeclarations]: Found specification of procedure __rounddown_pow_of_two [2021-11-17 11:39:18,524 INFO L138 BoogieDeclarations]: Found implementation of procedure __rounddown_pow_of_two [2021-11-17 11:39:18,524 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-17 11:39:18,524 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-17 11:39:18,524 INFO L130 BoogieDeclarations]: Found specification of procedure netif_napi_add [2021-11-17 11:39:18,525 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_napi_add [2021-11-17 11:39:18,525 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-17 11:39:18,525 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-17 11:39:18,525 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-17 11:39:18,525 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-17 11:39:18,525 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-17 11:39:18,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-17 11:39:18,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-17 11:39:18,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-17 11:39:18,526 INFO L130 BoogieDeclarations]: Found specification of procedure vmxnet3_tq_destroy [2021-11-17 11:39:18,526 INFO L138 BoogieDeclarations]: Found implementation of procedure vmxnet3_tq_destroy [2021-11-17 11:39:18,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-17 11:39:18,526 INFO L130 BoogieDeclarations]: Found specification of procedure vmxnet3_unmap_tx_buf [2021-11-17 11:39:18,526 INFO L138 BoogieDeclarations]: Found implementation of procedure vmxnet3_unmap_tx_buf [2021-11-17 11:39:18,526 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-17 11:39:18,526 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-17 11:39:18,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-17 11:39:18,527 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-17 11:39:18,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-17 11:39:18,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-17 11:39:18,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-17 11:39:18,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-17 11:39:18,527 INFO L130 BoogieDeclarations]: Found specification of procedure pci_choose_state [2021-11-17 11:39:18,527 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_choose_state [2021-11-17 11:39:18,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-17 11:39:18,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-17 11:39:18,528 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2021-11-17 11:39:18,528 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2021-11-17 11:39:18,528 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-11-17 11:39:18,528 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-11-17 11:39:18,529 INFO L130 BoogieDeclarations]: Found specification of procedure vmxnet3_rq_destroy [2021-11-17 11:39:18,529 INFO L138 BoogieDeclarations]: Found implementation of procedure vmxnet3_rq_destroy [2021-11-17 11:39:18,529 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-17 11:39:18,529 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-17 11:39:18,529 INFO L130 BoogieDeclarations]: Found specification of procedure vmxnet3_request_irqs [2021-11-17 11:39:18,529 INFO L138 BoogieDeclarations]: Found implementation of procedure vmxnet3_request_irqs [2021-11-17 11:39:18,530 INFO L130 BoogieDeclarations]: Found specification of procedure vmxnet3_rq_create [2021-11-17 11:39:18,530 INFO L138 BoogieDeclarations]: Found implementation of procedure vmxnet3_rq_create [2021-11-17 11:39:18,530 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2021-11-17 11:39:18,530 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2021-11-17 11:39:18,530 INFO L130 BoogieDeclarations]: Found specification of procedure vmxnet3_enable_intr [2021-11-17 11:39:18,530 INFO L138 BoogieDeclarations]: Found implementation of procedure vmxnet3_enable_intr [2021-11-17 11:39:18,530 INFO L130 BoogieDeclarations]: Found specification of procedure vmxnet3_remove_device [2021-11-17 11:39:18,530 INFO L138 BoogieDeclarations]: Found implementation of procedure vmxnet3_remove_device [2021-11-17 11:39:18,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-17 11:39:18,531 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-17 11:39:18,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-17 11:39:18,531 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-17 11:39:18,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-17 11:39:18,531 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-17 11:39:18,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-17 11:39:18,532 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2021-11-17 11:39:18,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2021-11-17 11:39:18,532 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-11-17 11:39:18,532 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-11-17 11:39:18,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-17 11:39:18,535 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-17 11:39:18,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-17 11:39:18,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-17 11:39:18,535 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-17 11:39:18,536 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-17 11:39:18,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-17 11:39:18,536 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-17 11:39:18,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-17 11:39:18,540 INFO L130 BoogieDeclarations]: Found specification of procedure vmxnet3_free_irqs [2021-11-17 11:39:18,541 INFO L138 BoogieDeclarations]: Found implementation of procedure vmxnet3_free_irqs [2021-11-17 11:39:18,541 INFO L130 BoogieDeclarations]: Found specification of procedure vmxnet3_set_mc [2021-11-17 11:39:18,541 INFO L138 BoogieDeclarations]: Found implementation of procedure vmxnet3_set_mc [2021-11-17 11:39:18,541 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-17 11:39:18,541 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-17 11:39:18,541 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2021-11-17 11:39:18,541 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2021-11-17 11:39:18,541 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-17 11:39:18,541 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-17 11:39:18,542 INFO L130 BoogieDeclarations]: Found specification of procedure vmxnet3_check_link [2021-11-17 11:39:18,542 INFO L138 BoogieDeclarations]: Found implementation of procedure vmxnet3_check_link [2021-11-17 11:39:18,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-17 11:39:18,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-17 11:39:18,542 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_selected_regions [2021-11-17 11:39:18,542 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_selected_regions [2021-11-17 11:39:18,542 INFO L130 BoogieDeclarations]: Found specification of procedure vmxnet3_cmd_ring_adv_next2fill [2021-11-17 11:39:18,542 INFO L138 BoogieDeclarations]: Found implementation of procedure vmxnet3_cmd_ring_adv_next2fill [2021-11-17 11:39:18,542 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-17 11:39:18,542 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-17 11:39:18,543 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-17 11:39:18,543 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-17 11:39:18,543 INFO L130 BoogieDeclarations]: Found specification of procedure vmxnet3_free_intr_resources [2021-11-17 11:39:18,543 INFO L138 BoogieDeclarations]: Found implementation of procedure vmxnet3_free_intr_resources [2021-11-17 11:39:18,543 INFO L130 BoogieDeclarations]: Found specification of procedure vmxnet3_tq_destroy_all [2021-11-17 11:39:18,543 INFO L138 BoogieDeclarations]: Found implementation of procedure vmxnet3_tq_destroy_all [2021-11-17 11:39:18,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-17 11:39:18,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-17 11:39:18,544 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-17 11:39:18,544 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-17 11:39:18,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-17 11:39:18,544 INFO L130 BoogieDeclarations]: Found specification of procedure vmxnet3_adjust_rx_ring_size [2021-11-17 11:39:18,544 INFO L138 BoogieDeclarations]: Found implementation of procedure vmxnet3_adjust_rx_ring_size [2021-11-17 11:39:18,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-17 11:39:18,544 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-17 11:39:18,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-17 11:39:18,545 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-17 11:39:18,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-17 11:39:18,545 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2021-11-17 11:39:18,545 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2021-11-17 11:39:18,545 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-11-17 11:39:18,545 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-11-17 11:39:18,545 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-17 11:39:18,545 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-17 11:39:18,545 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-17 11:39:18,545 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-17 11:39:18,546 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-17 11:39:18,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-17 11:39:18,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-17 11:39:18,546 INFO L130 BoogieDeclarations]: Found specification of procedure vmxnet3_quiesce_dev [2021-11-17 11:39:18,546 INFO L138 BoogieDeclarations]: Found implementation of procedure vmxnet3_quiesce_dev [2021-11-17 11:39:18,546 INFO L130 BoogieDeclarations]: Found specification of procedure vmxnet3_cmd_ring_adv_next2comp [2021-11-17 11:39:18,546 INFO L138 BoogieDeclarations]: Found implementation of procedure vmxnet3_cmd_ring_adv_next2comp [2021-11-17 11:39:18,546 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-11-17 11:39:18,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-11-17 11:39:18,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-17 11:39:18,547 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-17 11:39:18,547 INFO L130 BoogieDeclarations]: Found specification of procedure vmxnet3_rq_cleanup_all [2021-11-17 11:39:18,547 INFO L138 BoogieDeclarations]: Found implementation of procedure vmxnet3_rq_cleanup_all [2021-11-17 11:39:18,547 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-11-17 11:39:18,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-11-17 11:39:18,547 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2021-11-17 11:39:18,547 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2021-11-17 11:39:18,547 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-11-17 11:39:18,547 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-11-17 11:39:18,547 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-11-17 11:39:18,548 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-11-17 11:39:18,548 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-17 11:39:18,548 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-17 11:39:18,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-17 11:39:18,548 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-17 11:39:18,548 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-17 11:39:18,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value_probe [2021-11-17 11:39:18,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value_probe [2021-11-17 11:39:18,548 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-17 11:39:18,548 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2021-11-17 11:39:18,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2021-11-17 11:39:18,549 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-11-17 11:39:18,549 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-11-17 11:39:18,549 INFO L130 BoogieDeclarations]: Found specification of procedure vmxnet3_disable_intr [2021-11-17 11:39:18,549 INFO L138 BoogieDeclarations]: Found implementation of procedure vmxnet3_disable_intr [2021-11-17 11:39:18,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-17 11:39:18,549 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-17 11:39:18,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-17 11:39:18,549 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-11-17 11:39:18,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-11-17 11:39:18,550 INFO L130 BoogieDeclarations]: Found specification of procedure vmxnet3_process_events [2021-11-17 11:39:18,550 INFO L138 BoogieDeclarations]: Found implementation of procedure vmxnet3_process_events [2021-11-17 11:39:18,550 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-11-17 11:39:18,550 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-11-17 11:39:18,550 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-17 11:39:18,550 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-17 11:39:18,550 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-11-17 11:39:18,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-11-17 11:39:18,550 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-17 11:39:18,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-17 11:39:18,551 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-17 11:39:18,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-17 11:39:18,551 INFO L130 BoogieDeclarations]: Found specification of procedure vmxnet3_intr [2021-11-17 11:39:18,551 INFO L138 BoogieDeclarations]: Found implementation of procedure vmxnet3_intr [2021-11-17 11:39:18,551 INFO L130 BoogieDeclarations]: Found specification of procedure vmxnet3_rq_destroy_all [2021-11-17 11:39:18,551 INFO L138 BoogieDeclarations]: Found implementation of procedure vmxnet3_rq_destroy_all [2021-11-17 11:39:18,551 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-11-17 11:39:18,551 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-11-17 11:39:18,551 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_weight [2021-11-17 11:39:18,551 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_weight [2021-11-17 11:39:18,552 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-17 11:39:18,552 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-17 11:39:18,552 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-17 11:39:18,552 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-17 11:39:18,552 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb_ip_align [2021-11-17 11:39:18,552 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb_ip_align [2021-11-17 11:39:18,552 INFO L130 BoogieDeclarations]: Found specification of procedure vmxnet3_free_pci_resources [2021-11-17 11:39:18,552 INFO L138 BoogieDeclarations]: Found implementation of procedure vmxnet3_free_pci_resources [2021-11-17 11:39:18,552 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-17 11:39:18,552 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-17 11:39:18,553 INFO L130 BoogieDeclarations]: Found specification of procedure vmxnet3_disable_all_intrs [2021-11-17 11:39:18,553 INFO L138 BoogieDeclarations]: Found implementation of procedure vmxnet3_disable_all_intrs [2021-11-17 11:39:18,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-17 11:39:18,555 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_3_6 [2021-11-17 11:39:18,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_3_6 [2021-11-17 11:39:18,556 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-17 11:39:18,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-17 11:39:18,556 INFO L130 BoogieDeclarations]: Found specification of procedure vmxnet3_tq_tx_complete [2021-11-17 11:39:18,556 INFO L138 BoogieDeclarations]: Found implementation of procedure vmxnet3_tq_tx_complete [2021-11-17 11:39:18,556 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2021-11-17 11:39:18,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2021-11-17 11:39:18,557 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-17 11:39:18,557 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-17 11:39:18,557 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-17 11:39:18,557 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-17 11:39:18,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_vmxnet3_exit_module_19_2 [2021-11-17 11:39:18,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_vmxnet3_exit_module_19_2 [2021-11-17 11:39:18,557 INFO L130 BoogieDeclarations]: Found specification of procedure vmxnet3_enable_all_intrs [2021-11-17 11:39:18,558 INFO L138 BoogieDeclarations]: Found implementation of procedure vmxnet3_enable_all_intrs [2021-11-17 11:39:18,558 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2021-11-17 11:39:18,558 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2021-11-17 11:39:18,558 INFO L130 BoogieDeclarations]: Found specification of procedure vmxnet3_create_queues [2021-11-17 11:39:18,558 INFO L138 BoogieDeclarations]: Found implementation of procedure vmxnet3_create_queues [2021-11-17 11:39:18,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_2_6 [2021-11-17 11:39:18,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_2_6 [2021-11-17 11:39:18,558 INFO L130 BoogieDeclarations]: Found specification of procedure vmxnet3_force_close [2021-11-17 11:39:18,559 INFO L138 BoogieDeclarations]: Found implementation of procedure vmxnet3_force_close [2021-11-17 11:39:18,559 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-11-17 11:39:18,559 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-11-17 11:39:18,559 INFO L130 BoogieDeclarations]: Found specification of procedure vmxnet3_alloc_intr_resources [2021-11-17 11:39:18,559 INFO L138 BoogieDeclarations]: Found implementation of procedure vmxnet3_alloc_intr_resources [2021-11-17 11:39:18,559 INFO L130 BoogieDeclarations]: Found specification of procedure vmxnet3_activate_dev [2021-11-17 11:39:18,559 INFO L138 BoogieDeclarations]: Found implementation of procedure vmxnet3_activate_dev [2021-11-17 11:39:18,559 INFO L130 BoogieDeclarations]: Found specification of procedure vmxnet3_write_mac_addr [2021-11-17 11:39:18,559 INFO L138 BoogieDeclarations]: Found implementation of procedure vmxnet3_write_mac_addr [2021-11-17 11:39:18,559 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-17 11:39:18,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-17 11:39:18,560 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-17 11:39:18,560 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-17 11:39:18,560 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-17 11:39:18,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-17 11:39:18,560 INFO L130 BoogieDeclarations]: Found specification of procedure vmxnet3_msix_rx [2021-11-17 11:39:18,560 INFO L138 BoogieDeclarations]: Found implementation of procedure vmxnet3_msix_rx [2021-11-17 11:39:18,560 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-17 11:39:18,560 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-17 11:39:18,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_1_6 [2021-11-17 11:39:18,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_1_6 [2021-11-17 11:39:18,560 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-17 11:39:18,561 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-17 11:39:18,561 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2021-11-17 11:39:18,561 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2021-11-17 11:39:18,561 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-17 11:39:18,561 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-17 11:39:18,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-17 11:39:18,561 INFO L130 BoogieDeclarations]: Found specification of procedure vmxnet3_get_regs_len [2021-11-17 11:39:18,561 INFO L138 BoogieDeclarations]: Found implementation of procedure vmxnet3_get_regs_len [2021-11-17 11:39:18,561 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2021-11-17 11:39:18,561 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2021-11-17 11:39:18,562 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-17 11:39:18,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-17 11:39:18,562 INFO L130 BoogieDeclarations]: Found specification of procedure vmxnet3_suspend [2021-11-17 11:39:18,562 INFO L138 BoogieDeclarations]: Found implementation of procedure vmxnet3_suspend [2021-11-17 11:39:18,562 INFO L130 BoogieDeclarations]: Found specification of procedure netpoll_trap [2021-11-17 11:39:18,562 INFO L138 BoogieDeclarations]: Found implementation of procedure netpoll_trap [2021-11-17 11:39:19,601 INFO L236 CfgBuilder]: Building ICFG [2021-11-17 11:39:19,606 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-17 11:39:19,771 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-17 11:50:49,266 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-17 11:50:49,358 INFO L277 CfgBuilder]: Performing block encoding [2021-11-17 11:50:49,380 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-17 11:50:49,380 INFO L301 CfgBuilder]: Removed 7 assume(true) statements. [2021-11-17 11:50:49,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 11:50:49 BoogieIcfgContainer [2021-11-17 11:50:49,383 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-17 11:50:49,384 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-17 11:50:49,384 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-17 11:50:49,387 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-17 11:50:49,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 11:39:14" (1/3) ... [2021-11-17 11:50:49,387 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@420e9b05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 11:50:49, skipping insertion in model container [2021-11-17 11:50:49,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:39:17" (2/3) ... [2021-11-17 11:50:49,388 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@420e9b05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 11:50:49, skipping insertion in model container [2021-11-17 11:50:49,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 11:50:49" (3/3) ... [2021-11-17 11:50:49,389 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-net-vmxnet3-vmxnet3.cil.i [2021-11-17 11:50:49,392 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-17 11:50:49,392 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-17 11:50:49,434 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-17 11:50:49,441 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 [2021-11-17 11:50:49,441 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-17 11:50:49,504 INFO L276 IsEmpty]: Start isEmpty. Operand has 2880 states, 2072 states have (on average 1.291988416988417) internal successors, (2677), 2108 states have internal predecessors, (2677), 665 states have call successors, (665), 142 states have call predecessors, (665), 141 states have return successors, (654), 648 states have call predecessors, (654), 654 states have call successors, (654) [2021-11-17 11:50:49,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2021-11-17 11:50:49,521 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 11:50:49,522 INFO L514 BasicCegarLoop]: trace histogram [23, 23, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 11:50:49,522 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 11:50:49,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 11:50:49,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1409988455, now seen corresponding path program 1 times [2021-11-17 11:50:49,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 11:50:49,534 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972437271] [2021-11-17 11:50:49,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 11:50:49,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 11:50:50,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:50,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 11:50:50,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:50,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:50:50,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:50,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 11:50:50,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:50,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:50:50,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:50,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 11:50:50,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:50,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:50:50,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:50,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 11:50:50,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:50,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:50:50,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:50,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 11:50:50,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:50,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:50:50,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:50,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 11:50:50,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:50,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:50:50,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:50,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 11:50:50,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:50,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:50:50,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:50,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 11:50:50,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:50,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:50:50,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:50,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 11:50:50,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:50,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:50:50,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:50,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 11:50:50,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:50,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:50:50,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:50,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 11:50:50,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:50,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:50:50,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:50,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 11:50:50,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:50,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:50:50,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:51,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 11:50:51,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:51,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:50:51,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:51,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 11:50:51,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:51,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:50:51,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:51,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 11:50:51,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:51,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:50:51,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:51,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 11:50:51,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:51,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:50:51,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:51,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 11:50:51,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:51,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:50:51,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:51,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-17 11:50:51,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:51,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:50:51,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:51,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-17 11:50:51,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:51,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:50:51,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:51,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-11-17 11:50:51,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:51,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:50:51,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:51,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-17 11:50:51,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:51,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:50:51,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:51,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2021-11-17 11:50:51,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:51,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:50:51,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:51,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-11-17 11:50:51,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:51,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-11-17 11:50:51,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:50:51,232 INFO L134 CoverageAnalysis]: Checked inductivity of 2145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2145 trivial. 0 not checked. [2021-11-17 11:50:51,233 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 11:50:51,233 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972437271] [2021-11-17 11:50:51,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972437271] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 11:50:51,234 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 11:50:51,234 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 11:50:51,236 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982322081] [2021-11-17 11:50:51,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 11:50:51,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 11:50:51,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 11:50:51,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 11:50:51,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 11:50:51,271 INFO L87 Difference]: Start difference. First operand has 2880 states, 2072 states have (on average 1.291988416988417) internal successors, (2677), 2108 states have internal predecessors, (2677), 665 states have call successors, (665), 142 states have call predecessors, (665), 141 states have return successors, (654), 648 states have call predecessors, (654), 654 states have call successors, (654) Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-17 11:50:53,423 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 [] [2021-11-17 11:50:55,875 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.45s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:50:59,837 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:51:07,400 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:51:17,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 11:51:17,033 INFO L93 Difference]: Finished difference Result 8540 states and 12143 transitions. [2021-11-17 11:51:17,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 11:51:17,037 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 269 [2021-11-17 11:51:17,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 11:51:17,120 INFO L225 Difference]: With dead ends: 8540 [2021-11-17 11:51:17,120 INFO L226 Difference]: Without dead ends: 5689 [2021-11-17 11:51:17,143 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 11:51:17,145 INFO L933 BasicCegarLoop]: 3968 mSDtfsCounter, 5461 mSDsluCounter, 3846 mSDsCounter, 0 mSdLazyCounter, 2739 mSolverCounterSat, 2187 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6060 SdHoareTripleChecker+Valid, 7814 SdHoareTripleChecker+Invalid, 4930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2187 IncrementalHoareTripleChecker+Valid, 2739 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.0s IncrementalHoareTripleChecker+Time [2021-11-17 11:51:17,148 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6060 Valid, 7814 Invalid, 4930 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2187 Valid, 2739 Invalid, 4 Unknown, 0 Unchecked, 25.0s Time] [2021-11-17 11:51:17,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5689 states. [2021-11-17 11:51:17,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5689 to 5523. [2021-11-17 11:51:17,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5523 states, 3976 states have (on average 1.2625754527162978) internal successors, (5020), 4043 states have internal predecessors, (5020), 1266 states have call successors, (1266), 280 states have call predecessors, (1266), 279 states have return successors, (1263), 1251 states have call predecessors, (1263), 1263 states have call successors, (1263) [2021-11-17 11:51:17,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5523 states to 5523 states and 7549 transitions. [2021-11-17 11:51:17,448 INFO L78 Accepts]: Start accepts. Automaton has 5523 states and 7549 transitions. Word has length 269 [2021-11-17 11:51:17,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 11:51:17,452 INFO L470 AbstractCegarLoop]: Abstraction has 5523 states and 7549 transitions. [2021-11-17 11:51:17,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-17 11:51:17,453 INFO L276 IsEmpty]: Start isEmpty. Operand 5523 states and 7549 transitions. [2021-11-17 11:51:17,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2021-11-17 11:51:17,476 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 11:51:17,477 INFO L514 BasicCegarLoop]: trace histogram [23, 23, 22, 22, 22, 22, 22, 22, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 11:51:17,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-17 11:51:17,477 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 11:51:17,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 11:51:17,478 INFO L85 PathProgramCache]: Analyzing trace with hash -2077412953, now seen corresponding path program 1 times [2021-11-17 11:51:17,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 11:51:17,478 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712186424] [2021-11-17 11:51:17,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 11:51:17,478 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 11:51:17,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:18,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 11:51:18,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:18,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:18,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:18,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 11:51:18,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:18,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:18,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:18,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 11:51:18,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:18,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:18,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:18,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 11:51:18,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:18,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:18,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:18,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 11:51:18,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:18,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:18,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:18,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 11:51:18,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:18,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:18,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:18,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 11:51:18,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:18,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:18,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:18,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 11:51:18,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:18,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:18,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:18,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 11:51:18,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:18,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:18,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:18,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 11:51:18,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:18,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:18,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:18,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 11:51:18,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:18,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:18,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:18,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 11:51:18,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:18,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:18,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:18,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 11:51:18,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:18,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:18,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:18,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 11:51:18,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:18,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:18,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:18,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 11:51:18,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:18,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:18,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:18,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 11:51:18,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:18,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:18,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:18,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 11:51:18,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:18,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:18,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:18,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-17 11:51:18,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:18,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:18,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:18,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-17 11:51:18,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:18,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:18,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:18,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-11-17 11:51:18,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:18,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:18,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:18,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-17 11:51:18,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:18,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:18,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:18,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2021-11-17 11:51:18,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:18,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:18,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:18,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-11-17 11:51:18,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:18,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2021-11-17 11:51:18,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:18,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:18,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:18,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 11:51:18,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:18,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 11:51:18,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:18,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2021-11-17 11:51:18,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:18,667 INFO L134 CoverageAnalysis]: Checked inductivity of 2149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2149 trivial. 0 not checked. [2021-11-17 11:51:18,668 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 11:51:18,668 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712186424] [2021-11-17 11:51:18,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712186424] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 11:51:18,668 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 11:51:18,668 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 11:51:18,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578291045] [2021-11-17 11:51:18,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 11:51:18,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 11:51:18,671 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 11:51:18,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 11:51:18,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 11:51:18,672 INFO L87 Difference]: Start difference. First operand 5523 states and 7549 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2021-11-17 11:51:20,791 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 [] [2021-11-17 11:51:23,281 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.49s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:51:27,063 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:51:43,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 11:51:43,061 INFO L93 Difference]: Finished difference Result 13893 states and 19081 transitions. [2021-11-17 11:51:43,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 11:51:43,062 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 306 [2021-11-17 11:51:43,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 11:51:43,104 INFO L225 Difference]: With dead ends: 13893 [2021-11-17 11:51:43,105 INFO L226 Difference]: Without dead ends: 8419 [2021-11-17 11:51:43,129 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 11:51:43,133 INFO L933 BasicCegarLoop]: 3932 mSDtfsCounter, 5367 mSDsluCounter, 3829 mSDsCounter, 0 mSdLazyCounter, 2749 mSolverCounterSat, 2167 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5960 SdHoareTripleChecker+Valid, 7761 SdHoareTripleChecker+Invalid, 4919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2167 IncrementalHoareTripleChecker+Valid, 2749 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.7s IncrementalHoareTripleChecker+Time [2021-11-17 11:51:43,133 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5960 Valid, 7761 Invalid, 4919 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2167 Valid, 2749 Invalid, 3 Unknown, 0 Unchecked, 23.7s Time] [2021-11-17 11:51:43,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8419 states. [2021-11-17 11:51:43,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8419 to 8162. [2021-11-17 11:51:43,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8162 states, 5884 states have (on average 1.2601971447994562) internal successors, (7415), 5988 states have internal predecessors, (7415), 1856 states have call successors, (1856), 421 states have call predecessors, (1856), 420 states have return successors, (1853), 1830 states have call predecessors, (1853), 1853 states have call successors, (1853) [2021-11-17 11:51:43,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8162 states to 8162 states and 11124 transitions. [2021-11-17 11:51:43,374 INFO L78 Accepts]: Start accepts. Automaton has 8162 states and 11124 transitions. Word has length 306 [2021-11-17 11:51:43,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 11:51:43,375 INFO L470 AbstractCegarLoop]: Abstraction has 8162 states and 11124 transitions. [2021-11-17 11:51:43,376 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2021-11-17 11:51:43,377 INFO L276 IsEmpty]: Start isEmpty. Operand 8162 states and 11124 transitions. [2021-11-17 11:51:43,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2021-11-17 11:51:43,387 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 11:51:43,388 INFO L514 BasicCegarLoop]: trace histogram [26, 26, 22, 22, 22, 22, 22, 22, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 11:51:43,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-17 11:51:43,388 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 11:51:43,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 11:51:43,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1406049712, now seen corresponding path program 1 times [2021-11-17 11:51:43,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 11:51:43,389 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949150124] [2021-11-17 11:51:43,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 11:51:43,389 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 11:51:43,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:44,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 11:51:44,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:44,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:44,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:44,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 11:51:44,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:44,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:44,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:44,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 11:51:44,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:44,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:44,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:44,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 11:51:44,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:44,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:44,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:44,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 11:51:44,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:44,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:44,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:44,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 11:51:44,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:44,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:44,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:44,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 11:51:44,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:44,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:44,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:44,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 11:51:44,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:44,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:44,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:44,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 11:51:44,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:44,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:44,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:44,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 11:51:44,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:44,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:44,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:44,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 11:51:44,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:44,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:44,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:44,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 11:51:44,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:44,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:44,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:44,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 11:51:44,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:44,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:44,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:44,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 11:51:44,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:44,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:44,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:44,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 11:51:44,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:44,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:44,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:44,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 11:51:44,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:44,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:44,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:44,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 11:51:44,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:44,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:44,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:44,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-17 11:51:44,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:44,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:44,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:44,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-17 11:51:44,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:44,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:44,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:44,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-11-17 11:51:44,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:44,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:44,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:44,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-17 11:51:44,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:44,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:44,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:44,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2021-11-17 11:51:44,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:44,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:44,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:44,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-11-17 11:51:44,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:44,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-11-17 11:51:44,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:44,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2021-11-17 11:51:44,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:44,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2021-11-17 11:51:44,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:44,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2021-11-17 11:51:44,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:44,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:51:44,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:44,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2021-11-17 11:51:44,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:44,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-11-17 11:51:44,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:44,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2021-11-17 11:51:44,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:51:44,305 INFO L134 CoverageAnalysis]: Checked inductivity of 2395 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 2385 trivial. 0 not checked. [2021-11-17 11:51:44,305 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 11:51:44,306 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949150124] [2021-11-17 11:51:44,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949150124] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 11:51:44,306 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 11:51:44,306 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 11:51:44,306 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034287639] [2021-11-17 11:51:44,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 11:51:44,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 11:51:44,307 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 11:51:44,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 11:51:44,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 11:51:44,308 INFO L87 Difference]: Start difference. First operand 8162 states and 11124 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2021-11-17 11:51:46,420 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:51:48,824 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.40s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:51:54,829 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:52:08,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 11:52:08,340 INFO L93 Difference]: Finished difference Result 19403 states and 26628 transitions. [2021-11-17 11:52:08,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 11:52:08,341 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 325 [2021-11-17 11:52:08,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 11:52:08,423 INFO L225 Difference]: With dead ends: 19403 [2021-11-17 11:52:08,424 INFO L226 Difference]: Without dead ends: 13921 [2021-11-17 11:52:08,457 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 11:52:08,458 INFO L933 BasicCegarLoop]: 6995 mSDtfsCounter, 4182 mSDsluCounter, 5122 mSDsCounter, 0 mSdLazyCounter, 2753 mSolverCounterSat, 1531 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4776 SdHoareTripleChecker+Valid, 12117 SdHoareTripleChecker+Invalid, 4287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1531 IncrementalHoareTripleChecker+Valid, 2753 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.4s IncrementalHoareTripleChecker+Time [2021-11-17 11:52:08,458 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4776 Valid, 12117 Invalid, 4287 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1531 Valid, 2753 Invalid, 3 Unknown, 0 Unchecked, 23.4s Time] [2021-11-17 11:52:08,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13921 states. [2021-11-17 11:52:08,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13921 to 13509. [2021-11-17 11:52:09,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13509 states, 9750 states have (on average 1.261025641025641) internal successors, (12295), 9918 states have internal predecessors, (12295), 3060 states have call successors, (3060), 698 states have call predecessors, (3060), 697 states have return successors, (3057), 3022 states have call predecessors, (3057), 3057 states have call successors, (3057) [2021-11-17 11:52:09,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13509 states to 13509 states and 18412 transitions. [2021-11-17 11:52:09,049 INFO L78 Accepts]: Start accepts. Automaton has 13509 states and 18412 transitions. Word has length 325 [2021-11-17 11:52:09,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 11:52:09,050 INFO L470 AbstractCegarLoop]: Abstraction has 13509 states and 18412 transitions. [2021-11-17 11:52:09,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2021-11-17 11:52:09,050 INFO L276 IsEmpty]: Start isEmpty. Operand 13509 states and 18412 transitions. [2021-11-17 11:52:09,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2021-11-17 11:52:09,059 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 11:52:09,061 INFO L514 BasicCegarLoop]: trace histogram [26, 26, 22, 22, 22, 22, 22, 22, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 11:52:09,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-17 11:52:09,061 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 11:52:09,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 11:52:09,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1540063218, now seen corresponding path program 1 times [2021-11-17 11:52:09,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 11:52:09,062 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139414567] [2021-11-17 11:52:09,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 11:52:09,062 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 11:52:09,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:09,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 11:52:09,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:09,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:09,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:09,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 11:52:09,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:09,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:09,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:09,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 11:52:09,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:09,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:09,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:09,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 11:52:09,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:09,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:09,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:09,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 11:52:09,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:09,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:09,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:09,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 11:52:09,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:09,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:09,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:09,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 11:52:09,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:09,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:09,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:09,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 11:52:09,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:09,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:09,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:09,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 11:52:09,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:09,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:09,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:09,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 11:52:09,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:09,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:09,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:09,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 11:52:09,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:09,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:09,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:09,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 11:52:09,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:09,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:09,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:09,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 11:52:09,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:09,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:09,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:09,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 11:52:09,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:09,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:09,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:09,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 11:52:09,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:09,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:09,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:09,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 11:52:09,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:09,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:09,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:09,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 11:52:09,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:09,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:09,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:09,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-17 11:52:09,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:09,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:09,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:09,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-17 11:52:09,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:09,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:09,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:09,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-11-17 11:52:09,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:09,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:09,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:09,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-17 11:52:09,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:09,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:09,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:09,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2021-11-17 11:52:09,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:09,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:09,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:09,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-11-17 11:52:09,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:09,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-11-17 11:52:09,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:09,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2021-11-17 11:52:09,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:09,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2021-11-17 11:52:09,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:09,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2021-11-17 11:52:09,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:09,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:09,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:09,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2021-11-17 11:52:09,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:09,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-11-17 11:52:09,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:09,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2021-11-17 11:52:10,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:10,010 INFO L134 CoverageAnalysis]: Checked inductivity of 2395 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2395 trivial. 0 not checked. [2021-11-17 11:52:10,010 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 11:52:10,010 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139414567] [2021-11-17 11:52:10,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139414567] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 11:52:10,011 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 11:52:10,011 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 11:52:10,011 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081380267] [2021-11-17 11:52:10,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 11:52:10,012 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 11:52:10,012 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 11:52:10,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 11:52:10,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 11:52:10,012 INFO L87 Difference]: Start difference. First operand 13509 states and 18412 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-11-17 11:52:12,148 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:52:18,265 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:52:27,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 11:52:27,736 INFO L93 Difference]: Finished difference Result 13919 states and 19148 transitions. [2021-11-17 11:52:27,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 11:52:27,737 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 325 [2021-11-17 11:52:27,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 11:52:27,869 INFO L225 Difference]: With dead ends: 13919 [2021-11-17 11:52:27,869 INFO L226 Difference]: Without dead ends: 13880 [2021-11-17 11:52:27,884 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-17 11:52:27,886 INFO L933 BasicCegarLoop]: 3573 mSDtfsCounter, 4247 mSDsluCounter, 3851 mSDsCounter, 0 mSdLazyCounter, 2080 mSolverCounterSat, 1523 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4570 SdHoareTripleChecker+Valid, 7424 SdHoareTripleChecker+Invalid, 3605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1523 IncrementalHoareTripleChecker+Valid, 2080 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.7s IncrementalHoareTripleChecker+Time [2021-11-17 11:52:27,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4570 Valid, 7424 Invalid, 3605 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1523 Valid, 2080 Invalid, 2 Unknown, 0 Unchecked, 16.7s Time] [2021-11-17 11:52:27,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13880 states. [2021-11-17 11:52:28,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13880 to 13470. [2021-11-17 11:52:28,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13470 states, 9729 states have (on average 1.2609723507040806) internal successors, (12268), 9891 states have internal predecessors, (12268), 3045 states have call successors, (3045), 695 states have call predecessors, (3045), 695 states have return successors, (3045), 3013 states have call predecessors, (3045), 3045 states have call successors, (3045) [2021-11-17 11:52:28,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13470 states to 13470 states and 18358 transitions. [2021-11-17 11:52:28,390 INFO L78 Accepts]: Start accepts. Automaton has 13470 states and 18358 transitions. Word has length 325 [2021-11-17 11:52:28,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 11:52:28,390 INFO L470 AbstractCegarLoop]: Abstraction has 13470 states and 18358 transitions. [2021-11-17 11:52:28,392 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-11-17 11:52:28,392 INFO L276 IsEmpty]: Start isEmpty. Operand 13470 states and 18358 transitions. [2021-11-17 11:52:28,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2021-11-17 11:52:28,405 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 11:52:28,405 INFO L514 BasicCegarLoop]: trace histogram [25, 25, 23, 23, 23, 23, 23, 23, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 11:52:28,406 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-17 11:52:28,406 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 11:52:28,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 11:52:28,406 INFO L85 PathProgramCache]: Analyzing trace with hash -163776658, now seen corresponding path program 1 times [2021-11-17 11:52:28,406 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 11:52:28,406 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248016936] [2021-11-17 11:52:28,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 11:52:28,406 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 11:52:28,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:28,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 11:52:28,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:28,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:28,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:28,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 11:52:28,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:28,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:28,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:28,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 11:52:28,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:28,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:28,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:28,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 11:52:28,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:28,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:28,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:28,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 11:52:28,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:28,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:28,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:28,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 11:52:28,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:28,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:28,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:28,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 11:52:28,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:28,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:28,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:28,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 11:52:28,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:28,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:28,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:28,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 11:52:28,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:28,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:28,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:28,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 11:52:28,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:28,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:28,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:28,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 11:52:28,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:29,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 11:52:29,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:29,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 11:52:29,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:29,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 11:52:29,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:29,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 11:52:29,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:29,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 11:52:29,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:29,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 11:52:29,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:29,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-17 11:52:29,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:29,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-17 11:52:29,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:29,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-11-17 11:52:29,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:29,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-17 11:52:29,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:29,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2021-11-17 11:52:29,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:29,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-11-17 11:52:29,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2021-11-17 11:52:29,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2021-11-17 11:52:29,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-11-17 11:52:29,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2021-11-17 11:52:29,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2021-11-17 11:52:29,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:29,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2021-11-17 11:52:29,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:29,173 INFO L134 CoverageAnalysis]: Checked inductivity of 2423 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2423 trivial. 0 not checked. [2021-11-17 11:52:29,173 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 11:52:29,173 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248016936] [2021-11-17 11:52:29,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248016936] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 11:52:29,173 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 11:52:29,174 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 11:52:29,174 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146385633] [2021-11-17 11:52:29,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 11:52:29,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 11:52:29,174 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 11:52:29,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 11:52:29,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 11:52:29,175 INFO L87 Difference]: Start difference. First operand 13470 states and 18358 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-17 11:52:31,312 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 [] [2021-11-17 11:52:33,762 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.45s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:52:42,836 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:52:53,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 11:52:53,918 INFO L93 Difference]: Finished difference Result 36816 states and 50373 transitions. [2021-11-17 11:52:53,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 11:52:53,918 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 332 [2021-11-17 11:52:53,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 11:52:54,020 INFO L225 Difference]: With dead ends: 36816 [2021-11-17 11:52:54,021 INFO L226 Difference]: Without dead ends: 23395 [2021-11-17 11:52:54,081 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 11:52:54,083 INFO L933 BasicCegarLoop]: 3844 mSDtfsCounter, 5010 mSDsluCounter, 3803 mSDsCounter, 0 mSdLazyCounter, 2684 mSolverCounterSat, 2073 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5537 SdHoareTripleChecker+Valid, 7647 SdHoareTripleChecker+Invalid, 4760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2073 IncrementalHoareTripleChecker+Valid, 2684 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.8s IncrementalHoareTripleChecker+Time [2021-11-17 11:52:54,084 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5537 Valid, 7647 Invalid, 4760 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2073 Valid, 2684 Invalid, 3 Unknown, 0 Unchecked, 23.8s Time] [2021-11-17 11:52:54,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23395 states. [2021-11-17 11:52:54,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23395 to 22673. [2021-11-17 11:52:54,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22673 states, 16431 states have (on average 1.2583531130180756) internal successors, (20676), 16700 states have internal predecessors, (20676), 5037 states have call successors, (5037), 1204 states have call predecessors, (5037), 1204 states have return successors, (5037), 4982 states have call predecessors, (5037), 5037 states have call successors, (5037) [2021-11-17 11:52:55,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22673 states to 22673 states and 30750 transitions. [2021-11-17 11:52:55,072 INFO L78 Accepts]: Start accepts. Automaton has 22673 states and 30750 transitions. Word has length 332 [2021-11-17 11:52:55,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 11:52:55,073 INFO L470 AbstractCegarLoop]: Abstraction has 22673 states and 30750 transitions. [2021-11-17 11:52:55,073 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-17 11:52:55,073 INFO L276 IsEmpty]: Start isEmpty. Operand 22673 states and 30750 transitions. [2021-11-17 11:52:55,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2021-11-17 11:52:55,117 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 11:52:55,117 INFO L514 BasicCegarLoop]: trace histogram [27, 27, 22, 22, 22, 22, 22, 22, 6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 11:52:55,117 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-17 11:52:55,117 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 11:52:55,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 11:52:55,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1055998362, now seen corresponding path program 1 times [2021-11-17 11:52:55,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 11:52:55,119 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746418462] [2021-11-17 11:52:55,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 11:52:55,119 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 11:52:55,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:55,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 11:52:55,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:55,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:55,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:55,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 11:52:55,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:55,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:55,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:55,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 11:52:55,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:55,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:55,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:55,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 11:52:55,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:55,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:55,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:55,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 11:52:55,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:55,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:55,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:55,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 11:52:55,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:55,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:55,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:55,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 11:52:55,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:55,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:55,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:55,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 11:52:55,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:55,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:55,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:55,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 11:52:55,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:55,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:55,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:55,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 11:52:55,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:55,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:55,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:55,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 11:52:55,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:55,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:55,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:55,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 11:52:55,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:55,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:55,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:55,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 11:52:55,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:55,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:55,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:55,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 11:52:55,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:55,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:55,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:55,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 11:52:55,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:55,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:55,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:55,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 11:52:55,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:55,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:55,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:55,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 11:52:55,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:55,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:55,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:55,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-17 11:52:55,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:55,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:55,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:55,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-17 11:52:55,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:55,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:55,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:55,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-11-17 11:52:55,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:55,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:55,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:55,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-17 11:52:55,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:55,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:55,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:55,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2021-11-17 11:52:55,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:55,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:55,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:55,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-11-17 11:52:55,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:55,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-11-17 11:52:55,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:55,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2021-11-17 11:52:55,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:55,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2021-11-17 11:52:55,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:55,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2021-11-17 11:52:55,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:55,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:55,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:55,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2021-11-17 11:52:55,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:55,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-11-17 11:52:55,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:55,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2021-11-17 11:52:55,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:55,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2021-11-17 11:52:55,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:55,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2021-11-17 11:52:55,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:55,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:52:55,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:55,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 11:52:55,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:55,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 11:52:55,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:55,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2021-11-17 11:52:55,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:52:55,891 INFO L134 CoverageAnalysis]: Checked inductivity of 2514 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 2499 trivial. 0 not checked. [2021-11-17 11:52:55,891 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 11:52:55,891 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746418462] [2021-11-17 11:52:55,891 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746418462] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 11:52:55,891 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 11:52:55,891 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 11:52:55,891 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821126442] [2021-11-17 11:52:55,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 11:52:55,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 11:52:55,893 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 11:52:55,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 11:52:55,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 11:52:55,893 INFO L87 Difference]: Start difference. First operand 22673 states and 30750 transitions. Second operand has 4 states, 4 states have (on average 28.0) internal successors, (112), 3 states have internal predecessors, (112), 3 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2021-11-17 11:52:57,988 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:53:00,398 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.41s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:53:11,927 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:53:19,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 11:53:19,978 INFO L93 Difference]: Finished difference Result 54093 states and 73785 transitions. [2021-11-17 11:53:19,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 11:53:19,979 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 3 states have internal predecessors, (112), 3 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) Word has length 382 [2021-11-17 11:53:19,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 11:53:20,251 INFO L225 Difference]: With dead ends: 54093 [2021-11-17 11:53:20,251 INFO L226 Difference]: Without dead ends: 31359 [2021-11-17 11:53:20,415 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 11:53:20,416 INFO L933 BasicCegarLoop]: 6967 mSDtfsCounter, 4168 mSDsluCounter, 5110 mSDsCounter, 0 mSdLazyCounter, 2732 mSolverCounterSat, 1520 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4759 SdHoareTripleChecker+Valid, 12077 SdHoareTripleChecker+Invalid, 4255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1520 IncrementalHoareTripleChecker+Valid, 2732 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.0s IncrementalHoareTripleChecker+Time [2021-11-17 11:53:20,416 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4759 Valid, 12077 Invalid, 4255 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1520 Valid, 2732 Invalid, 3 Unknown, 0 Unchecked, 23.0s Time] [2021-11-17 11:53:20,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31359 states. [2021-11-17 11:53:21,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31359 to 30397. [2021-11-17 11:53:21,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30397 states, 22020 states have (on average 1.258946412352407) internal successors, (27722), 22380 states have internal predecessors, (27722), 6764 states have call successors, (6764), 1612 states have call predecessors, (6764), 1612 states have return successors, (6764), 6692 states have call predecessors, (6764), 6764 states have call successors, (6764) [2021-11-17 11:53:21,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30397 states to 30397 states and 41250 transitions. [2021-11-17 11:53:21,468 INFO L78 Accepts]: Start accepts. Automaton has 30397 states and 41250 transitions. Word has length 382 [2021-11-17 11:53:21,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 11:53:21,470 INFO L470 AbstractCegarLoop]: Abstraction has 30397 states and 41250 transitions. [2021-11-17 11:53:21,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 3 states have internal predecessors, (112), 3 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2021-11-17 11:53:21,470 INFO L276 IsEmpty]: Start isEmpty. Operand 30397 states and 41250 transitions. [2021-11-17 11:53:21,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 397 [2021-11-17 11:53:21,703 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 11:53:21,703 INFO L514 BasicCegarLoop]: trace histogram [28, 28, 23, 23, 23, 23, 23, 23, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 11:53:21,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-17 11:53:21,704 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 11:53:21,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 11:53:21,704 INFO L85 PathProgramCache]: Analyzing trace with hash 951744656, now seen corresponding path program 1 times [2021-11-17 11:53:21,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 11:53:21,705 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756229541] [2021-11-17 11:53:21,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 11:53:21,705 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 11:53:21,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:53:22,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 11:53:22,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:53:22,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:53:22,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:53:22,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 11:53:22,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:53:22,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:53:22,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:53:22,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 11:53:22,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:53:22,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:53:22,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:53:22,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 11:53:22,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:53:22,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:53:22,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:53:22,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 11:53:22,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:53:22,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:53:22,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:53:22,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 11:53:22,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:53:22,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:53:22,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:53:22,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 11:53:22,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:53:22,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:53:22,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:53:22,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 11:53:22,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:53:22,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:53:22,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:53:22,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 11:53:22,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:53:22,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:53:22,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:53:22,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 11:53:22,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:53:22,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:53:22,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:53:22,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 11:53:22,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:53:22,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:53:22,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:53:22,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 11:53:22,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:53:22,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:53:22,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:53:22,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 11:53:22,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:53:22,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:53:22,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:53:22,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 11:53:22,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:53:22,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:53:22,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:53:22,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 11:53:22,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:53:22,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:53:22,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:53:22,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 11:53:22,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:53:22,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:53:22,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:53:22,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 11:53:22,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:53:22,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:53:22,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:53:22,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-17 11:53:22,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:53:22,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:53:22,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:53:22,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-17 11:53:22,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:53:22,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:53:22,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:53:22,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-11-17 11:53:22,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:53:22,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:53:22,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:53:22,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-17 11:53:22,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:53:22,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:53:22,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:53:22,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2021-11-17 11:53:22,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:53:22,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:53:22,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:53:22,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-11-17 11:53:22,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:53:22,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-11-17 11:53:22,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:53:22,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2021-11-17 11:53:22,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:53:22,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2021-11-17 11:53:22,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:53:22,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2021-11-17 11:53:22,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:53:22,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-11-17 11:53:22,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:53:22,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:53:22,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:53:22,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2021-11-17 11:53:22,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:53:22,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2021-11-17 11:53:22,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:53:22,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2021-11-17 11:53:22,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:53:22,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2021-11-17 11:53:22,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:53:22,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2021-11-17 11:53:22,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:53:22,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2021-11-17 11:53:22,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:53:22,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2021-11-17 11:53:22,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:53:22,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:53:22,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:53:22,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2021-11-17 11:53:22,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:53:22,634 INFO L134 CoverageAnalysis]: Checked inductivity of 2700 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2697 trivial. 0 not checked. [2021-11-17 11:53:22,634 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 11:53:22,635 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756229541] [2021-11-17 11:53:22,635 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756229541] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 11:53:22,635 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 11:53:22,635 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 11:53:22,635 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382028737] [2021-11-17 11:53:22,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 11:53:22,636 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 11:53:22,636 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 11:53:22,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 11:53:22,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 11:53:22,636 INFO L87 Difference]: Start difference. First operand 30397 states and 41250 transitions. Second operand has 4 states, 4 states have (on average 29.25) internal successors, (117), 3 states have internal predecessors, (117), 3 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2021-11-17 11:53:24,740 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:53:27,165 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.42s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:53:30,357 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15