./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--intel--ixgb--ixgb.ko-entry_point.cil.out.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-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--intel--ixgb--ixgb.ko-entry_point.cil.out.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 899936809f134b7a18a7ac00d293808544b0e96b14603dc5a591cd3e9a61d6b6 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-17 05:18:11,463 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-17 05:18:11,464 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-17 05:18:11,508 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-17 05:18:11,509 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-17 05:18:11,512 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-17 05:18:11,515 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-17 05:18:11,522 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-17 05:18:11,524 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-17 05:18:11,530 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-17 05:18:11,531 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-17 05:18:11,533 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-17 05:18:11,533 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-17 05:18:11,536 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-17 05:18:11,537 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-17 05:18:11,539 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-17 05:18:11,540 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-17 05:18:11,541 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-17 05:18:11,547 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-17 05:18:11,551 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-17 05:18:11,554 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-17 05:18:11,555 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-17 05:18:11,556 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-17 05:18:11,556 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-17 05:18:11,560 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-17 05:18:11,562 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-17 05:18:11,562 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-17 05:18:11,563 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-17 05:18:11,565 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-17 05:18:11,566 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-17 05:18:11,566 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-17 05:18:11,567 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-17 05:18:11,568 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-17 05:18:11,569 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-17 05:18:11,570 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-17 05:18:11,570 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-17 05:18:11,571 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-17 05:18:11,571 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-17 05:18:11,571 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-17 05:18:11,572 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-17 05:18:11,573 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-17 05:18:11,574 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-17 05:18:11,609 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-17 05:18:11,609 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-17 05:18:11,610 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-17 05:18:11,610 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-17 05:18:11,611 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-17 05:18:11,611 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-17 05:18:11,612 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-17 05:18:11,612 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-17 05:18:11,612 INFO L138 SettingsManager]: * Use SBE=true [2021-11-17 05:18:11,612 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-17 05:18:11,613 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-17 05:18:11,614 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-17 05:18:11,614 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-17 05:18:11,614 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-17 05:18:11,614 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-17 05:18:11,614 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-17 05:18:11,614 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-17 05:18:11,615 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-17 05:18:11,615 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-17 05:18:11,615 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-17 05:18:11,615 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-17 05:18:11,615 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 05:18:11,616 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-17 05:18:11,616 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-17 05:18:11,616 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-17 05:18:11,616 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-17 05:18:11,616 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-17 05:18:11,617 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-17 05:18:11,617 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-17 05:18:11,617 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-17 05:18:11,617 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-17 05:18:11,617 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 899936809f134b7a18a7ac00d293808544b0e96b14603dc5a591cd3e9a61d6b6 [2021-11-17 05:18:11,891 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-17 05:18:11,929 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-17 05:18:11,931 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-17 05:18:11,932 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-17 05:18:11,933 INFO L275 PluginConnector]: CDTParser initialized [2021-11-17 05:18:11,934 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--intel--ixgb--ixgb.ko-entry_point.cil.out.i [2021-11-17 05:18:11,994 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d91d66651/24d1e20168544457b8cdfd3a5a847bad/FLAG15ebcab89 [2021-11-17 05:18:12,939 INFO L306 CDTParser]: Found 1 translation units. [2021-11-17 05:18:12,939 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--intel--ixgb--ixgb.ko-entry_point.cil.out.i [2021-11-17 05:18:13,002 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d91d66651/24d1e20168544457b8cdfd3a5a847bad/FLAG15ebcab89 [2021-11-17 05:18:13,507 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d91d66651/24d1e20168544457b8cdfd3a5a847bad [2021-11-17 05:18:13,510 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-17 05:18:13,512 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-17 05:18:13,515 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-17 05:18:13,515 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-17 05:18:13,518 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-17 05:18:13,518 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 05:18:13" (1/1) ... [2021-11-17 05:18:13,519 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8194a48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:18:13, skipping insertion in model container [2021-11-17 05:18:13,520 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 05:18:13" (1/1) ... [2021-11-17 05:18:13,526 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-17 05:18:13,673 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-17 05:18:17,773 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-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--intel--ixgb--ixgb.ko-entry_point.cil.out.i[478203,478216] [2021-11-17 05:18:17,880 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 05:18:17,948 INFO L203 MainTranslator]: Completed pre-run [2021-11-17 05:18:18,456 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-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--intel--ixgb--ixgb.ko-entry_point.cil.out.i[478203,478216] [2021-11-17 05:18:18,462 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 05:18:18,819 INFO L208 MainTranslator]: Completed translation [2021-11-17 05:18:18,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:18:18 WrapperNode [2021-11-17 05:18:18,836 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-17 05:18:18,837 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-17 05:18:18,837 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-17 05:18:18,837 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-17 05:18:18,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:18:18" (1/1) ... [2021-11-17 05:18:19,018 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:18:18" (1/1) ... [2021-11-17 05:18:19,366 INFO L137 Inliner]: procedures = 450, calls = 6036, calls flagged for inlining = 203, calls inlined = 184, statements flattened = 11242 [2021-11-17 05:18:19,367 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-17 05:18:19,368 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-17 05:18:19,368 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-17 05:18:19,368 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-17 05:18:19,377 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:18:18" (1/1) ... [2021-11-17 05:18:19,378 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:18:18" (1/1) ... [2021-11-17 05:18:19,445 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:18:18" (1/1) ... [2021-11-17 05:18:19,446 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:18:18" (1/1) ... [2021-11-17 05:18:19,716 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:18:18" (1/1) ... [2021-11-17 05:18:19,739 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:18:18" (1/1) ... [2021-11-17 05:18:19,775 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:18:18" (1/1) ... [2021-11-17 05:18:19,825 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-17 05:18:19,826 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-17 05:18:19,826 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-17 05:18:19,826 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-17 05:18:19,827 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:18:18" (1/1) ... [2021-11-17 05:18:19,833 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 05:18:19,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 05:18:19,857 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 05:18:19,882 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 05:18:19,899 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-17 05:18:19,900 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-17 05:18:19,900 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-17 05:18:19,900 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-17 05:18:19,900 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-17 05:18:19,900 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-17 05:18:19,900 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_write_vfta [2021-11-17 05:18:19,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_write_vfta [2021-11-17 05:18:19,901 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-17 05:18:19,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-17 05:18:19,901 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_standby_eeprom [2021-11-17 05:18:19,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_standby_eeprom [2021-11-17 05:18:19,901 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_io_error_detected [2021-11-17 05:18:19,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_io_error_detected [2021-11-17 05:18:19,901 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-17 05:18:19,902 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-17 05:18:19,902 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_2 [2021-11-17 05:18:19,902 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_2 [2021-11-17 05:18:19,902 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-17 05:18:19,902 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-17 05:18:19,902 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-11-17 05:18:19,902 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-11-17 05:18:19,903 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-17 05:18:19,903 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-17 05:18:19,903 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_tx_timeout_task [2021-11-17 05:18:19,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_tx_timeout_task [2021-11-17 05:18:19,903 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_alloc_rx_buffers [2021-11-17 05:18:19,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_alloc_rx_buffers [2021-11-17 05:18:19,903 INFO L130 BoogieDeclarations]: Found specification of procedure mac_addr_valid [2021-11-17 05:18:19,904 INFO L138 BoogieDeclarations]: Found implementation of procedure mac_addr_valid [2021-11-17 05:18:19,904 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_vlan_rx_add_vid [2021-11-17 05:18:19,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_vlan_rx_add_vid [2021-11-17 05:18:19,904 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_free_tx_resources [2021-11-17 05:18:19,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_free_tx_resources [2021-11-17 05:18:19,904 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-17 05:18:19,904 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-17 05:18:19,905 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_set_features [2021-11-17 05:18:19,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_set_features [2021-11-17 05:18:19,905 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_set_multi [2021-11-17 05:18:19,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_set_multi [2021-11-17 05:18:19,906 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_rar_set [2021-11-17 05:18:19,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_rar_set [2021-11-17 05:18:19,906 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-17 05:18:19,906 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-17 05:18:19,906 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-17 05:18:19,906 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-17 05:18:19,906 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-17 05:18:19,906 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-17 05:18:19,907 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-17 05:18:19,907 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-17 05:18:19,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-17 05:18:19,907 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-17 05:18:19,908 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-17 05:18:19,908 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_validate_eeprom_checksum [2021-11-17 05:18:19,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_validate_eeprom_checksum [2021-11-17 05:18:19,908 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-17 05:18:19,909 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-17 05:18:19,909 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_netpoll [2021-11-17 05:18:19,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_netpoll [2021-11-17 05:18:19,910 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-17 05:18:19,910 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-17 05:18:19,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-17 05:18:19,910 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_raise_clock [2021-11-17 05:18:19,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_raise_clock [2021-11-17 05:18:19,911 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_write_eeprom [2021-11-17 05:18:19,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_write_eeprom [2021-11-17 05:18:19,911 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-17 05:18:19,911 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-17 05:18:19,912 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_identify_xpak_vendor [2021-11-17 05:18:19,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_identify_xpak_vendor [2021-11-17 05:18:19,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-17 05:18:19,912 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_mac_reset [2021-11-17 05:18:19,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_mac_reset [2021-11-17 05:18:19,913 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_3 [2021-11-17 05:18:19,913 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_3 [2021-11-17 05:18:19,913 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_read_eeprom [2021-11-17 05:18:19,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_read_eeprom [2021-11-17 05:18:19,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-17 05:18:19,914 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_free_rx_resources [2021-11-17 05:18:19,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_free_rx_resources [2021-11-17 05:18:19,914 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-17 05:18:19,914 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-17 05:18:19,914 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2021-11-17 05:18:19,914 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2021-11-17 05:18:19,914 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-17 05:18:19,914 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-17 05:18:19,915 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2021-11-17 05:18:19,915 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2021-11-17 05:18:19,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-17 05:18:19,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-17 05:18:19,916 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_regs_len [2021-11-17 05:18:19,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_regs_len [2021-11-17 05:18:19,916 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2021-11-17 05:18:19,916 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2021-11-17 05:18:19,917 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-17 05:18:19,917 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-17 05:18:19,917 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_read_phy_reg [2021-11-17 05:18:19,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_read_phy_reg [2021-11-17 05:18:19,917 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_check_for_link [2021-11-17 05:18:19,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_check_for_link [2021-11-17 05:18:19,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-11-17 05:18:19,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-11-17 05:18:19,918 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_validate_option [2021-11-17 05:18:19,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_validate_option [2021-11-17 05:18:19,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-17 05:18:19,919 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-11-17 05:18:19,919 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-11-17 05:18:19,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-17 05:18:19,919 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-17 05:18:19,919 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-17 05:18:19,919 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-17 05:18:19,919 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-17 05:18:19,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-17 05:18:19,920 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_3 [2021-11-17 05:18:19,920 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_3 [2021-11-17 05:18:19,920 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_lower_clock [2021-11-17 05:18:19,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_lower_clock [2021-11-17 05:18:19,921 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_reset [2021-11-17 05:18:19,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_reset [2021-11-17 05:18:19,924 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-17 05:18:19,924 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-17 05:18:19,924 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_eeprom_len [2021-11-17 05:18:19,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_eeprom_len [2021-11-17 05:18:19,925 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_up [2021-11-17 05:18:19,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_up [2021-11-17 05:18:19,925 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_irq_enable [2021-11-17 05:18:19,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_irq_enable [2021-11-17 05:18:19,925 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-17 05:18:19,930 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-17 05:18:19,930 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-17 05:18:19,931 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-17 05:18:19,931 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_setup_tx_resources [2021-11-17 05:18:19,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_setup_tx_resources [2021-11-17 05:18:19,931 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_maybe_stop_tx [2021-11-17 05:18:19,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_maybe_stop_tx [2021-11-17 05:18:19,931 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_intr [2021-11-17 05:18:19,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_intr [2021-11-17 05:18:19,931 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-17 05:18:19,932 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-17 05:18:19,932 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-17 05:18:19,932 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-17 05:18:19,932 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-17 05:18:19,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-17 05:18:19,932 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2021-11-17 05:18:19,932 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2021-11-17 05:18:19,932 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-17 05:18:19,933 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-17 05:18:19,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-17 05:18:19,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-17 05:18:19,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-17 05:18:19,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-17 05:18:19,933 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 05:18:19,933 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 05:18:19,933 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-17 05:18:19,934 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-17 05:18:19,934 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-17 05:18:19,934 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-17 05:18:19,934 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_update_stats [2021-11-17 05:18:19,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_update_stats [2021-11-17 05:18:19,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_7 [2021-11-17 05:18:19,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_7 [2021-11-17 05:18:19,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-17 05:18:19,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-17 05:18:19,935 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_check_and_get_eeprom_data [2021-11-17 05:18:19,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_check_and_get_eeprom_data [2021-11-17 05:18:19,935 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-11-17 05:18:19,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-11-17 05:18:19,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-17 05:18:19,935 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-17 05:18:19,936 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-17 05:18:19,936 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-17 05:18:19,936 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-17 05:18:19,936 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-17 05:18:19,936 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-11-17 05:18:19,936 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-11-17 05:18:19,937 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-11-17 05:18:19,937 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-11-17 05:18:19,937 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-17 05:18:19,937 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-17 05:18:19,937 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-17 05:18:19,937 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-11-17 05:18:19,937 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-11-17 05:18:19,937 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-17 05:18:19,938 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-17 05:18:19,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-17 05:18:19,938 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_vlan_rx_kill_vid [2021-11-17 05:18:19,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_vlan_rx_kill_vid [2021-11-17 05:18:19,938 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2021-11-17 05:18:19,938 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2021-11-17 05:18:19,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-17 05:18:19,938 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_change_mtu [2021-11-17 05:18:19,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_change_mtu [2021-11-17 05:18:19,940 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2021-11-17 05:18:19,940 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2021-11-17 05:18:19,940 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-11-17 05:18:19,940 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-11-17 05:18:19,940 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-17 05:18:19,941 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-17 05:18:19,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-17 05:18:19,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-17 05:18:19,941 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_link_reset [2021-11-17 05:18:19,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_link_reset [2021-11-17 05:18:19,941 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_set_speed_duplex [2021-11-17 05:18:19,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_set_speed_duplex [2021-11-17 05:18:19,941 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_fix_features [2021-11-17 05:18:19,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_fix_features [2021-11-17 05:18:19,942 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-11-17 05:18:19,942 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-11-17 05:18:19,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2021-11-17 05:18:19,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2021-11-17 05:18:19,942 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-17 05:18:19,942 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-17 05:18:19,942 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_io_slot_reset [2021-11-17 05:18:19,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_io_slot_reset [2021-11-17 05:18:19,943 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2021-11-17 05:18:19,943 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2021-11-17 05:18:19,943 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-17 05:18:19,943 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-17 05:18:19,943 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_unmap_and_free_tx_resource [2021-11-17 05:18:19,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_unmap_and_free_tx_resource [2021-11-17 05:18:19,943 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2021-11-17 05:18:19,944 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2021-11-17 05:18:19,944 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-17 05:18:19,944 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-17 05:18:19,944 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_set_mac [2021-11-17 05:18:19,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_set_mac [2021-11-17 05:18:19,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-17 05:18:19,944 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_setup_eeprom [2021-11-17 05:18:19,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_setup_eeprom [2021-11-17 05:18:19,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-17 05:18:19,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-17 05:18:19,945 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_write_phy_reg [2021-11-17 05:18:19,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_write_phy_reg [2021-11-17 05:18:19,945 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_ee_mac_addr [2021-11-17 05:18:19,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_ee_mac_addr [2021-11-17 05:18:19,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-11-17 05:18:19,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-11-17 05:18:19,945 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-17 05:18:19,946 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-17 05:18:19,946 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2021-11-17 05:18:19,946 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2021-11-17 05:18:19,946 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_clean_tx_ring [2021-11-17 05:18:19,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_clean_tx_ring [2021-11-17 05:18:19,946 INFO L130 BoogieDeclarations]: Found specification of procedure is_multicast_ether_addr [2021-11-17 05:18:19,946 INFO L138 BoogieDeclarations]: Found implementation of procedure is_multicast_ether_addr [2021-11-17 05:18:19,947 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-11-17 05:18:19,950 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-11-17 05:18:19,950 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_clean_rx_ring [2021-11-17 05:18:19,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_clean_rx_ring [2021-11-17 05:18:19,951 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_shift_out_bits [2021-11-17 05:18:19,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_shift_out_bits [2021-11-17 05:18:19,951 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_down [2021-11-17 05:18:19,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_down [2021-11-17 05:18:19,951 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-11-17 05:18:19,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-11-17 05:18:19,952 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_tx_timeout [2021-11-17 05:18:19,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_tx_timeout [2021-11-17 05:18:19,953 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_setup_rx_resources [2021-11-17 05:18:19,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_setup_rx_resources [2021-11-17 05:18:19,953 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-17 05:18:19,953 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-17 05:18:19,953 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 05:18:19,953 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 05:18:19,953 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_stats [2021-11-17 05:18:19,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_stats [2021-11-17 05:18:19,953 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2021-11-17 05:18:19,954 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2021-11-17 05:18:19,954 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-17 05:18:19,954 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-17 05:18:19,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-17 05:18:19,954 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-17 05:18:19,954 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_eeprom_data [2021-11-17 05:18:19,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_eeprom_data [2021-11-17 05:18:21,289 INFO L236 CfgBuilder]: Building ICFG [2021-11-17 05:18:21,295 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-17 05:18:21,648 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-17 05:18:46,518 INFO L277 CfgBuilder]: Performing block encoding [2021-11-17 05:18:46,551 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-17 05:18:46,551 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-17 05:18:46,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 05:18:46 BoogieIcfgContainer [2021-11-17 05:18:46,557 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-17 05:18:46,559 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-17 05:18:46,559 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-17 05:18:46,562 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-17 05:18:46,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 05:18:13" (1/3) ... [2021-11-17 05:18:46,564 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57646 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 05:18:46, skipping insertion in model container [2021-11-17 05:18:46,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:18:18" (2/3) ... [2021-11-17 05:18:46,564 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57646 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 05:18:46, skipping insertion in model container [2021-11-17 05:18:46,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 05:18:46" (3/3) ... [2021-11-17 05:18:46,566 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--intel--ixgb--ixgb.ko-entry_point.cil.out.i [2021-11-17 05:18:46,572 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-17 05:18:46,573 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-17 05:18:46,635 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-17 05:18:46,647 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 05:18:46,647 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-17 05:18:46,716 INFO L276 IsEmpty]: Start isEmpty. Operand has 3096 states, 2096 states have (on average 1.3005725190839694) internal successors, (2726), 2129 states have internal predecessors, (2726), 871 states have call successors, (871), 128 states have call predecessors, (871), 127 states have return successors, (862), 858 states have call predecessors, (862), 862 states have call successors, (862) [2021-11-17 05:18:46,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-11-17 05:18:46,737 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 05:18:46,738 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:18:46,739 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 05:18:46,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 05:18:46,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1608542857, now seen corresponding path program 1 times [2021-11-17 05:18:46,750 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 05:18:46,751 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431376949] [2021-11-17 05:18:46,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:18:46,752 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 05:18:47,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:18:47,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:18:47,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:18:47,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:18:47,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:18:47,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:18:47,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:18:47,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 05:18:47,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:18:47,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:18:47,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:18:47,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:18:47,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:18:47,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 05:18:47,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:18:47,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:18:47,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:18:47,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:18:47,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:18:47,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-17 05:18:47,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:18:47,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:18:47,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:18:47,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-17 05:18:47,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:18:47,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:18:47,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:18:47,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-17 05:18:47,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:18:47,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:18:47,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:18:47,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-11-17 05:18:47,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:18:47,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:18:47,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:18:47,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-17 05:18:47,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:18:47,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:18:47,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:18:47,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-11-17 05:18:47,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:18:47,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:18:47,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:18:47,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-17 05:18:47,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:18:47,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:18:47,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:18:47,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-17 05:18:47,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:18:47,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:18:47,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:18:47,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-11-17 05:18:47,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:18:47,960 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2021-11-17 05:18:47,961 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 05:18:47,961 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431376949] [2021-11-17 05:18:47,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431376949] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 05:18:47,962 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 05:18:47,962 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 05:18:47,964 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907597262] [2021-11-17 05:18:47,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 05:18:47,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 05:18:47,968 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 05:18:47,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 05:18:47,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 05:18:47,997 INFO L87 Difference]: Start difference. First operand has 3096 states, 2096 states have (on average 1.3005725190839694) internal successors, (2726), 2129 states have internal predecessors, (2726), 871 states have call successors, (871), 128 states have call predecessors, (871), 127 states have return successors, (862), 858 states have call predecessors, (862), 862 states have call successors, (862) Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-17 05:18:59,299 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 05:19:01,330 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:19:03,360 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:19:10,220 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:19:12,248 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:19:16,396 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:19:17,778 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:19:19,107 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:19:21,595 WARN L515 Checker$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 05:19:23,631 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:19:25,673 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:19:29,913 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:19:33,261 WARN L515 Checker$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 05:19:35,282 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:19:37,315 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:19:39,621 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:19:41,922 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:19:44,084 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:19:45,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 05:19:45,258 INFO L93 Difference]: Finished difference Result 6365 states and 9290 transitions. [2021-11-17 05:19:45,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-17 05:19:45,261 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 172 [2021-11-17 05:19:45,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 05:19:45,306 INFO L225 Difference]: With dead ends: 6365 [2021-11-17 05:19:45,306 INFO L226 Difference]: Without dead ends: 3235 [2021-11-17 05:19:45,350 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-17 05:19:45,354 INFO L933 BasicCegarLoop]: 4125 mSDtfsCounter, 1438 mSDsluCounter, 4883 mSDsCounter, 0 mSdLazyCounter, 4047 mSolverCounterSat, 2173 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 53.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1446 SdHoareTripleChecker+Valid, 9008 SdHoareTripleChecker+Invalid, 6236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2173 IncrementalHoareTripleChecker+Valid, 4047 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 56.5s IncrementalHoareTripleChecker+Time [2021-11-17 05:19:45,355 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1446 Valid, 9008 Invalid, 6236 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2173 Valid, 4047 Invalid, 16 Unknown, 0 Unchecked, 56.5s Time] [2021-11-17 05:19:45,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3235 states. [2021-11-17 05:19:45,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3235 to 3057. [2021-11-17 05:19:45,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3057 states, 2068 states have (on average 1.2886847195357833) internal successors, (2665), 2090 states have internal predecessors, (2665), 862 states have call successors, (862), 127 states have call predecessors, (862), 126 states have return successors, (860), 856 states have call predecessors, (860), 860 states have call successors, (860) [2021-11-17 05:19:45,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3057 states to 3057 states and 4387 transitions. [2021-11-17 05:19:45,695 INFO L78 Accepts]: Start accepts. Automaton has 3057 states and 4387 transitions. Word has length 172 [2021-11-17 05:19:45,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 05:19:45,696 INFO L470 AbstractCegarLoop]: Abstraction has 3057 states and 4387 transitions. [2021-11-17 05:19:45,696 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-17 05:19:45,697 INFO L276 IsEmpty]: Start isEmpty. Operand 3057 states and 4387 transitions. [2021-11-17 05:19:45,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-11-17 05:19:45,714 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 05:19:45,714 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:19:45,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-17 05:19:45,715 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 05:19:45,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 05:19:45,715 INFO L85 PathProgramCache]: Analyzing trace with hash -333627761, now seen corresponding path program 1 times [2021-11-17 05:19:45,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 05:19:45,718 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865697882] [2021-11-17 05:19:45,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:19:45,718 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 05:19:45,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:19:46,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:19:46,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:19:46,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:19:46,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:19:46,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:19:46,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:19:46,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 05:19:46,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:19:46,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:19:46,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:19:46,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:19:46,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:19:46,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 05:19:46,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:19:46,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:19:46,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:19:46,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:19:46,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:19:46,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-17 05:19:46,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:19:46,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:19:46,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:19:46,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-17 05:19:46,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:19:46,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:19:46,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:19:46,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-17 05:19:46,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:19:46,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:19:46,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:19:46,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-11-17 05:19:46,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:19:46,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:19:46,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:19:46,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-17 05:19:46,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:19:46,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:19:46,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:19:46,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-11-17 05:19:46,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:19:46,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:19:46,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:19:46,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-17 05:19:46,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:19:46,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:19:46,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:19:46,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-17 05:19:46,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:19:46,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:19:46,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:19:46,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-11-17 05:19:46,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:19:46,714 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2021-11-17 05:19:46,715 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 05:19:46,715 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865697882] [2021-11-17 05:19:46,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865697882] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 05:19:46,715 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 05:19:46,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 05:19:46,716 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183986564] [2021-11-17 05:19:46,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 05:19:46,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 05:19:46,717 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 05:19:46,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 05:19:46,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 05:19:46,718 INFO L87 Difference]: Start difference. First operand 3057 states and 4387 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-17 05:19:56,847 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 05:19:58,879 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:20:00,913 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:20:23,442 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:20:25,481 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:20:26,568 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:20:31,863 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:20:33,904 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:20:37,467 WARN L515 Checker$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 05:20:39,511 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:20:41,551 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:20:50,249 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:20:52,288 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:20:56,316 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:20:58,355 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:21:00,960 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:21:03,007 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:21:05,044 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:21:07,643 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:21:08,948 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:21:11,399 WARN L515 Checker$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 05:21:13,437 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:21:15,463 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:21:19,027 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:21:21,097 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:21:23,237 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:21:26,591 WARN L515 Checker$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 05:21:28,631 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:21:30,659 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:21:33,469 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:21:35,545 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:21:37,764 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:21:38,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 05:21:38,837 INFO L93 Difference]: Finished difference Result 8892 states and 12819 transitions. [2021-11-17 05:21:38,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 05:21:38,838 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 172 [2021-11-17 05:21:38,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 05:21:38,885 INFO L225 Difference]: With dead ends: 8892 [2021-11-17 05:21:38,886 INFO L226 Difference]: Without dead ends: 5861 [2021-11-17 05:21:38,907 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-17 05:21:38,908 INFO L933 BasicCegarLoop]: 4882 mSDtfsCounter, 5356 mSDsluCounter, 8777 mSDsCounter, 0 mSdLazyCounter, 6826 mSolverCounterSat, 4155 mSolverCounterUnsat, 28 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 106.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5847 SdHoareTripleChecker+Valid, 13659 SdHoareTripleChecker+Invalid, 11009 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 4155 IncrementalHoareTripleChecker+Valid, 6826 IncrementalHoareTripleChecker+Invalid, 28 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 110.9s IncrementalHoareTripleChecker+Time [2021-11-17 05:21:38,908 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5847 Valid, 13659 Invalid, 11009 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [4155 Valid, 6826 Invalid, 28 Unknown, 0 Unchecked, 110.9s Time] [2021-11-17 05:21:38,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5861 states. [2021-11-17 05:21:39,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5861 to 5501. [2021-11-17 05:21:39,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5501 states, 3702 states have (on average 1.2825499729875742) internal successors, (4748), 3740 states have internal predecessors, (4748), 1565 states have call successors, (1565), 234 states have call predecessors, (1565), 233 states have return successors, (1563), 1553 states have call predecessors, (1563), 1563 states have call successors, (1563) [2021-11-17 05:21:39,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5501 states to 5501 states and 7876 transitions. [2021-11-17 05:21:39,265 INFO L78 Accepts]: Start accepts. Automaton has 5501 states and 7876 transitions. Word has length 172 [2021-11-17 05:21:39,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 05:21:39,268 INFO L470 AbstractCegarLoop]: Abstraction has 5501 states and 7876 transitions. [2021-11-17 05:21:39,268 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-17 05:21:39,268 INFO L276 IsEmpty]: Start isEmpty. Operand 5501 states and 7876 transitions. [2021-11-17 05:21:39,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2021-11-17 05:21:39,275 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 05:21:39,275 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-17 05:21:39,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-17 05:21:39,276 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 05:21:39,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 05:21:39,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1828859180, now seen corresponding path program 1 times [2021-11-17 05:21:39,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 05:21:39,277 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548043085] [2021-11-17 05:21:39,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:21:39,277 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 05:21:39,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:21:39,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:21:39,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:21:39,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:21:39,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:21:39,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:21:39,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:21:39,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 05:21:39,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:21:39,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:21:39,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:21:39,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:21:39,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:21:39,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 05:21:39,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:21:39,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:21:39,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:21:39,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:21:39,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:21:40,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-17 05:21:40,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:21:40,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:21:40,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:21:40,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-17 05:21:40,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:21:40,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:21:40,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:21:40,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-17 05:21:40,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:21:40,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:21:40,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:21:40,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-11-17 05:21:40,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:21:40,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:21:40,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:21:40,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-17 05:21:40,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:21:40,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:21:40,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:21:40,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-11-17 05:21:40,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:21:40,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:21:40,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:21:40,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-17 05:21:40,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:21:40,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:21:40,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:21:40,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-17 05:21:40,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:21:40,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:21:40,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:21:40,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-17 05:21:40,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:21:40,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-17 05:21:40,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:21:40,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-17 05:21:40,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:21:40,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 05:21:40,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:21:40,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:21:40,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:21:40,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-17 05:21:40,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:21:40,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:21:40,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:21:40,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 05:21:40,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:21:40,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-11-17 05:21:40,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:21:40,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-17 05:21:40,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:21:40,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-17 05:21:40,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:21:40,535 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2021-11-17 05:21:40,535 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 05:21:40,535 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548043085] [2021-11-17 05:21:40,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548043085] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 05:21:40,536 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 05:21:40,536 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 05:21:40,536 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488624802] [2021-11-17 05:21:40,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 05:21:40,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 05:21:40,537 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 05:21:40,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 05:21:40,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-17 05:21:40,538 INFO L87 Difference]: Start difference. First operand 5501 states and 7876 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-17 05:21:48,640 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 05:21:50,671 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:21:52,700 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:22:07,809 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:22:09,844 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:22:11,872 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:22:17,938 WARN L515 Checker$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 05:22:20,927 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:22:26,481 WARN L515 Checker$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 05:22:28,510 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:22:33,237 WARN L515 Checker$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 05:22:35,265 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:22:37,294 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:22:46,910 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:22:52,210 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:22:54,414 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:22:56,448 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:22:58,479 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:23:01,592 WARN L515 Checker$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 05:23:03,631 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:23:05,659 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:23:15,375 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:23:17,398 WARN L515 Checker$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 05:23:19,423 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:23:22,700 WARN L515 Checker$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 05:23:24,753 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:23:26,795 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:23:29,122 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:23:30,178 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:23:32,203 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:23:34,875 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:23:37,044 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:23:39,058 WARN L515 Checker$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 05:23:40,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 05:23:40,354 INFO L93 Difference]: Finished difference Result 16873 states and 24278 transitions. [2021-11-17 05:23:40,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 05:23:40,355 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 221 [2021-11-17 05:23:40,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 05:23:40,431 INFO L225 Difference]: With dead ends: 16873 [2021-11-17 05:23:40,431 INFO L226 Difference]: Without dead ends: 11398 [2021-11-17 05:23:40,465 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-17 05:23:40,466 INFO L933 BasicCegarLoop]: 4933 mSDtfsCounter, 7381 mSDsluCounter, 8992 mSDsCounter, 0 mSdLazyCounter, 7011 mSolverCounterSat, 6351 mSolverCounterUnsat, 31 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 114.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8117 SdHoareTripleChecker+Valid, 13925 SdHoareTripleChecker+Invalid, 13393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 6351 IncrementalHoareTripleChecker+Valid, 7011 IncrementalHoareTripleChecker+Invalid, 31 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 118.5s IncrementalHoareTripleChecker+Time [2021-11-17 05:23:40,466 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8117 Valid, 13925 Invalid, 13393 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [6351 Valid, 7011 Invalid, 31 Unknown, 0 Unchecked, 118.5s Time] [2021-11-17 05:23:40,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11398 states. [2021-11-17 05:23:41,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11398 to 10730. [2021-11-17 05:23:41,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10730 states, 7226 states have (on average 1.280929975089953) internal successors, (9256), 7299 states have internal predecessors, (9256), 3043 states have call successors, (3043), 461 states have call predecessors, (3043), 460 states have return successors, (3041), 3021 states have call predecessors, (3041), 3041 states have call successors, (3041) [2021-11-17 05:23:41,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10730 states to 10730 states and 15340 transitions. [2021-11-17 05:23:41,135 INFO L78 Accepts]: Start accepts. Automaton has 10730 states and 15340 transitions. Word has length 221 [2021-11-17 05:23:41,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 05:23:41,136 INFO L470 AbstractCegarLoop]: Abstraction has 10730 states and 15340 transitions. [2021-11-17 05:23:41,137 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-17 05:23:41,137 INFO L276 IsEmpty]: Start isEmpty. Operand 10730 states and 15340 transitions. [2021-11-17 05:23:41,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2021-11-17 05:23:41,148 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 05:23:41,149 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:23:41,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-17 05:23:41,149 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 05:23:41,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 05:23:41,150 INFO L85 PathProgramCache]: Analyzing trace with hash 259802755, now seen corresponding path program 1 times [2021-11-17 05:23:41,150 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 05:23:41,150 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53056339] [2021-11-17 05:23:41,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:23:41,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 05:23:41,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:23:41,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:23:41,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:23:41,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:23:41,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:23:41,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:23:41,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:23:41,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 05:23:41,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:23:41,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:23:41,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:23:41,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:23:41,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:23:41,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 05:23:41,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:23:41,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:23:41,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:23:41,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:23:41,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:23:41,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-17 05:23:41,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:23:41,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:23:41,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:23:41,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-17 05:23:41,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:23:41,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:23:41,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:23:41,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-17 05:23:41,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:23:41,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:23:41,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:23:41,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-11-17 05:23:41,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:23:41,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:23:41,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:23:41,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-17 05:23:41,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:23:41,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:23:41,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:23:41,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-11-17 05:23:41,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:23:41,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:23:41,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:23:41,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-17 05:23:41,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:23:41,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:23:41,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:23:41,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-17 05:23:41,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:23:41,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:23:41,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:23:41,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-17 05:23:41,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:23:41,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:23:41,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:23:42,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:23:42,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:23:42,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 05:23:42,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:23:42,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:23:42,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:23:42,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:23:42,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:23:42,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 05:23:42,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:23:42,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:23:42,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:23:42,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:23:42,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:23:42,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-11-17 05:23:42,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:23:42,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:23:42,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:23:42,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:23:42,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:23:42,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-11-17 05:23:42,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:23:42,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:23:42,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:23:42,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:23:42,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:23:42,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-11-17 05:23:42,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:23:42,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:23:42,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:23:42,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:23:42,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:23:42,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-11-17 05:23:42,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:23:42,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:23:42,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:23:42,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:23:42,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:23:42,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-11-17 05:23:42,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:23:42,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:23:42,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:23:42,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:23:42,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:23:42,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2021-11-17 05:23:42,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:23:42,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:23:42,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:23:42,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2021-11-17 05:23:42,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:23:42,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:23:42,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:23:42,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2021-11-17 05:23:42,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:23:42,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:23:42,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:23:42,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2021-11-17 05:23:42,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:23:42,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:23:42,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:23:42,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2021-11-17 05:23:42,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:23:42,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2021-11-17 05:23:42,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:23:42,285 INFO L134 CoverageAnalysis]: Checked inductivity of 1364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1364 trivial. 0 not checked. [2021-11-17 05:23:42,286 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 05:23:42,286 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53056339] [2021-11-17 05:23:42,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53056339] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 05:23:42,286 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 05:23:42,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 05:23:42,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641778786] [2021-11-17 05:23:42,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 05:23:42,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 05:23:42,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 05:23:42,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 05:23:42,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 05:23:42,288 INFO L87 Difference]: Start difference. First operand 10730 states and 15340 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (31), 5 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-17 05:23:50,062 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:23:52,094 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:24:19,725 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:24:21,756 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:24:27,051 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:24:29,086 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:24:32,592 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:24:34,635 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:24:42,149 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:24:44,182 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:24:48,464 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:24:50,497 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:24:54,176 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:24:56,386 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:24:57,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 05:24:57,603 INFO L93 Difference]: Finished difference Result 31469 states and 45067 transitions. [2021-11-17 05:24:57,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 05:24:57,604 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (31), 5 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 355 [2021-11-17 05:24:57,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 05:24:57,740 INFO L225 Difference]: With dead ends: 31469 [2021-11-17 05:24:57,741 INFO L226 Difference]: Without dead ends: 20765 [2021-11-17 05:24:57,801 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-17 05:24:57,804 INFO L933 BasicCegarLoop]: 4767 mSDtfsCounter, 5704 mSDsluCounter, 8802 mSDsCounter, 0 mSdLazyCounter, 6676 mSolverCounterSat, 4333 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 70.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6183 SdHoareTripleChecker+Valid, 13569 SdHoareTripleChecker+Invalid, 11023 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 4333 IncrementalHoareTripleChecker+Valid, 6676 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 73.8s IncrementalHoareTripleChecker+Time [2021-11-17 05:24:57,805 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6183 Valid, 13569 Invalid, 11023 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [4333 Valid, 6676 Invalid, 14 Unknown, 0 Unchecked, 73.8s Time] [2021-11-17 05:24:57,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20765 states. [2021-11-17 05:24:58,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20765 to 19450. [2021-11-17 05:24:58,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19450 states, 13146 states have (on average 1.277803134033166) internal successors, (16798), 13269 states have internal predecessors, (16798), 5425 states have call successors, (5425), 879 states have call predecessors, (5425), 878 states have return successors, (5423), 5389 states have call predecessors, (5423), 5423 states have call successors, (5423) [2021-11-17 05:24:59,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19450 states to 19450 states and 27646 transitions. [2021-11-17 05:24:59,150 INFO L78 Accepts]: Start accepts. Automaton has 19450 states and 27646 transitions. Word has length 355 [2021-11-17 05:24:59,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 05:24:59,152 INFO L470 AbstractCegarLoop]: Abstraction has 19450 states and 27646 transitions. [2021-11-17 05:24:59,152 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (31), 5 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-17 05:24:59,152 INFO L276 IsEmpty]: Start isEmpty. Operand 19450 states and 27646 transitions. [2021-11-17 05:24:59,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2021-11-17 05:24:59,167 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 05:24:59,167 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 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] [2021-11-17 05:24:59,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-17 05:24:59,168 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 05:24:59,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 05:24:59,169 INFO L85 PathProgramCache]: Analyzing trace with hash 838719141, now seen corresponding path program 1 times [2021-11-17 05:24:59,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 05:24:59,169 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547177624] [2021-11-17 05:24:59,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:24:59,170 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 05:24:59,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:24:59,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:24:59,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:24:59,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:24:59,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:24:59,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:24:59,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:24:59,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 05:24:59,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:24:59,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:24:59,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:24:59,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:24:59,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:24:59,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 05:24:59,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:24:59,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:24:59,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:24:59,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:24:59,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:24:59,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-17 05:24:59,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:24:59,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:24:59,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:24:59,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-17 05:24:59,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:24:59,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:24:59,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:24:59,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-17 05:24:59,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:24:59,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:24:59,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:24:59,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-11-17 05:24:59,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:24:59,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:24:59,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:24:59,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-17 05:24:59,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:24:59,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:24:59,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:24:59,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-11-17 05:24:59,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:24:59,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:24:59,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:25:00,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-17 05:25:00,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:25:00,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:25:00,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:25:00,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-17 05:25:00,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:25:00,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:25:00,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:25:00,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 05:25:00,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:25:00,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:25:00,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:25:00,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:25:00,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:25:00,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-11-17 05:25:00,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:25:00,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 05:25:00,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:25:00,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:25:00,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:25:00,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:25:00,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:25:00,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-11-17 05:25:00,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:25:00,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:25:00,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:25:00,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:25:00,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:25:00,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-11-17 05:25:00,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:25:00,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:25:00,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:25:00,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:25:00,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:25:00,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-11-17 05:25:00,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:25:00,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:25:00,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:25:00,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:25:00,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:25:00,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-11-17 05:25:00,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:25:00,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:25:00,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:25:00,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:25:00,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:25:00,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2021-11-17 05:25:00,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:25:00,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-11-17 05:25:00,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:25:00,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-11-17 05:25:00,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:25:00,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-11-17 05:25:00,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:25:00,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:25:00,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:25:00,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2021-11-17 05:25:00,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:25:00,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:25:00,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:25:00,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 05:25:00,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:25:00,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-11-17 05:25:00,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:25:00,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2021-11-17 05:25:00,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:25:00,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2021-11-17 05:25:00,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:25:00,541 INFO L134 CoverageAnalysis]: Checked inductivity of 766 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 762 trivial. 0 not checked. [2021-11-17 05:25:00,542 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 05:25:00,542 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547177624] [2021-11-17 05:25:00,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547177624] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 05:25:00,542 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 05:25:00,542 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-17 05:25:00,543 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047625798] [2021-11-17 05:25:00,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 05:25:00,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 05:25:00,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 05:25:00,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 05:25:00,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-11-17 05:25:00,544 INFO L87 Difference]: Start difference. First operand 19450 states and 27646 transitions. Second operand has 8 states, 8 states have (on average 13.75) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (37), 7 states have call predecessors, (37), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2021-11-17 05:25:10,783 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:25:12,825 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:25:28,250 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:25:30,279 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:25:55,793 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:25:58,568 WARN L515 Checker$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 05:26:05,698 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:26:07,733 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:26:10,872 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:26:12,902 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:26:17,447 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:26:19,487 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:26:23,397 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:26:25,433 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:26:29,764 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:26:31,803 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:26:39,730 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:26:41,851 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:26:46,976 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:26:51,422 WARN L515 Checker$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 05:26:53,130 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:26:55,156 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:26:57,182 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:27:03,740 WARN L515 Checker$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 05:27:05,768 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:27:09,127 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:27:11,184 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:27:13,734 WARN L515 Checker$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 05:27:16,064 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:27:18,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 05:27:18,052 INFO L93 Difference]: Finished difference Result 51272 states and 73365 transitions. [2021-11-17 05:27:18,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-17 05:27:18,053 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (37), 7 states have call predecessors, (37), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 343 [2021-11-17 05:27:18,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 05:27:18,217 INFO L225 Difference]: With dead ends: 51272 [2021-11-17 05:27:18,218 INFO L226 Difference]: Without dead ends: 31853 [2021-11-17 05:27:18,290 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-11-17 05:27:18,291 INFO L933 BasicCegarLoop]: 7691 mSDtfsCounter, 4357 mSDsluCounter, 15769 mSDsCounter, 0 mSdLazyCounter, 11968 mSolverCounterSat, 2021 mSolverCounterUnsat, 26 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 130.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5177 SdHoareTripleChecker+Valid, 23460 SdHoareTripleChecker+Invalid, 14015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2021 IncrementalHoareTripleChecker+Valid, 11968 IncrementalHoareTripleChecker+Invalid, 26 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 135.5s IncrementalHoareTripleChecker+Time [2021-11-17 05:27:18,291 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5177 Valid, 23460 Invalid, 14015 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2021 Valid, 11968 Invalid, 26 Unknown, 0 Unchecked, 135.5s Time] [2021-11-17 05:27:18,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31853 states. [2021-11-17 05:27:19,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31853 to 29203. [2021-11-17 05:27:19,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29203 states, 19753 states have (on average 1.2776287146256264) internal successors, (25237), 19946 states have internal predecessors, (25237), 8126 states have call successors, (8126), 1320 states have call predecessors, (8126), 1323 states have return successors, (8136), 8070 states have call predecessors, (8136), 8124 states have call successors, (8136) [2021-11-17 05:27:19,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29203 states to 29203 states and 41499 transitions. [2021-11-17 05:27:19,961 INFO L78 Accepts]: Start accepts. Automaton has 29203 states and 41499 transitions. Word has length 343 [2021-11-17 05:27:19,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 05:27:19,962 INFO L470 AbstractCegarLoop]: Abstraction has 29203 states and 41499 transitions. [2021-11-17 05:27:19,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (37), 7 states have call predecessors, (37), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2021-11-17 05:27:19,962 INFO L276 IsEmpty]: Start isEmpty. Operand 29203 states and 41499 transitions. [2021-11-17 05:27:19,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2021-11-17 05:27:19,982 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 05:27:19,984 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 05:27:19,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-17 05:27:19,984 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 05:27:19,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 05:27:19,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1571403000, now seen corresponding path program 1 times [2021-11-17 05:27:19,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 05:27:19,985 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359687061] [2021-11-17 05:27:19,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:27:19,985 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 05:27:20,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:27:20,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:27:20,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:27:20,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:27:20,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:27:20,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:27:20,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:27:20,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 05:27:20,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:27:20,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:27:20,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:27:20,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:27:20,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:27:20,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 05:27:20,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:27:20,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:27:20,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:27:20,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:27:20,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:27:20,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-17 05:27:20,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:27:20,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:27:20,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:27:20,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-17 05:27:20,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:27:20,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:27:20,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:27:20,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-17 05:27:20,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:27:20,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:27:20,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:27:20,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-11-17 05:27:20,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:27:20,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:27:20,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:27:20,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-17 05:27:20,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:27:20,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:27:20,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:27:20,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-11-17 05:27:20,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:27:20,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:27:20,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:27:20,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-17 05:27:20,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:27:20,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:27:20,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:27:20,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-17 05:27:20,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:27:20,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:27:20,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:27:20,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 05:27:20,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:27:20,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:27:20,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:27:20,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:27:20,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:27:20,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-11-17 05:27:20,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:27:20,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 05:27:20,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:27:20,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:27:20,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:27:20,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:27:20,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:27:20,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-11-17 05:27:20,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:27:20,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:27:20,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:27:20,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:27:20,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:27:20,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-11-17 05:27:20,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:27:20,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:27:20,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:27:20,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:27:20,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:27:20,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-11-17 05:27:20,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:27:20,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:27:20,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:27:20,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:27:20,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:27:20,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-11-17 05:27:20,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:27:20,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:27:20,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:27:20,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:27:20,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:27:20,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2021-11-17 05:27:20,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:27:20,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2021-11-17 05:27:20,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:27:20,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2021-11-17 05:27:20,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:27:20,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2021-11-17 05:27:20,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:27:20,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:27:20,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:27:21,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2021-11-17 05:27:21,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:27:21,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:27:21,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:27:21,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 05:27:21,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:27:21,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-11-17 05:27:21,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:27:21,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2021-11-17 05:27:21,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:27:21,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2021-11-17 05:27:21,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:27:21,138 INFO L134 CoverageAnalysis]: Checked inductivity of 778 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 766 trivial. 0 not checked. [2021-11-17 05:27:21,138 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 05:27:21,138 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359687061] [2021-11-17 05:27:21,138 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359687061] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 05:27:21,138 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 05:27:21,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-17 05:27:21,139 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078846574] [2021-11-17 05:27:21,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 05:27:21,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 05:27:21,140 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 05:27:21,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 05:27:21,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-11-17 05:27:21,141 INFO L87 Difference]: Start difference. First operand 29203 states and 41499 transitions. Second operand has 8 states, 8 states have (on average 15.0) internal successors, (120), 3 states have internal predecessors, (120), 2 states have call successors, (37), 7 states have call predecessors, (37), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-17 05:27:30,499 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 05:27:32,539 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:27:48,070 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:27:50,113 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:28:14,087 WARN L515 Checker$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 05:28:16,123 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:28:23,883 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:28:25,908 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:28:28,145 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:28:29,621 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:28:31,446 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:28:35,852 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:28:37,895 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:28:40,449 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:28:42,483 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:28:53,249 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:28:55,282 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:28:58,282 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:29:00,321 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:29:02,512 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:29:04,549 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:29:10,235 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:29:12,261 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:29:14,294 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:29:19,391 WARN L515 Checker$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 05:29:21,577 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:29:22,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 05:29:22,997 INFO L93 Difference]: Finished difference Result 71675 states and 102467 transitions. [2021-11-17 05:29:22,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-17 05:29:22,997 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.0) internal successors, (120), 3 states have internal predecessors, (120), 2 states have call successors, (37), 7 states have call predecessors, (37), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 356 [2021-11-17 05:29:22,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 05:29:23,244 INFO L225 Difference]: With dead ends: 71675 [2021-11-17 05:29:23,244 INFO L226 Difference]: Without dead ends: 42503 [2021-11-17 05:29:23,362 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-11-17 05:29:23,364 INFO L933 BasicCegarLoop]: 7170 mSDtfsCounter, 5723 mSDsluCounter, 15006 mSDsCounter, 0 mSdLazyCounter, 10603 mSolverCounterSat, 5110 mSolverCounterUnsat, 20 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 114.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6545 SdHoareTripleChecker+Valid, 22176 SdHoareTripleChecker+Invalid, 15733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 5110 IncrementalHoareTripleChecker+Valid, 10603 IncrementalHoareTripleChecker+Invalid, 20 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 119.8s IncrementalHoareTripleChecker+Time [2021-11-17 05:29:23,364 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6545 Valid, 22176 Invalid, 15733 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [5110 Valid, 10603 Invalid, 20 Unknown, 0 Unchecked, 119.8s Time] [2021-11-17 05:29:23,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42503 states. [2021-11-17 05:29:25,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42503 to 38964. [2021-11-17 05:29:25,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38964 states, 26368 states have (on average 1.2774575242718447) internal successors, (33684), 26623 states have internal predecessors, (33684), 10827 states have call successors, (10827), 1765 states have call predecessors, (10827), 1768 states have return successors, (10837), 10755 states have call predecessors, (10837), 10825 states have call successors, (10837) [2021-11-17 05:29:25,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38964 states to 38964 states and 55348 transitions. [2021-11-17 05:29:25,313 INFO L78 Accepts]: Start accepts. Automaton has 38964 states and 55348 transitions. Word has length 356 [2021-11-17 05:29:25,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 05:29:25,314 INFO L470 AbstractCegarLoop]: Abstraction has 38964 states and 55348 transitions. [2021-11-17 05:29:25,314 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.0) internal successors, (120), 3 states have internal predecessors, (120), 2 states have call successors, (37), 7 states have call predecessors, (37), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-17 05:29:25,315 INFO L276 IsEmpty]: Start isEmpty. Operand 38964 states and 55348 transitions. [2021-11-17 05:29:25,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2021-11-17 05:29:25,339 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 05:29:25,340 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 3, 3, 3, 3, 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] [2021-11-17 05:29:25,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-17 05:29:25,341 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 05:29:25,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 05:29:25,341 INFO L85 PathProgramCache]: Analyzing trace with hash -114862830, now seen corresponding path program 1 times [2021-11-17 05:29:25,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 05:29:25,342 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949036241] [2021-11-17 05:29:25,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:29:25,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 05:29:25,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:25,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:29:25,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:25,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:29:25,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:25,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:29:25,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:25,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 05:29:25,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:25,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:29:25,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:25,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:29:25,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:25,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 05:29:25,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:25,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:29:25,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:25,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:29:25,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:26,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-17 05:29:26,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:26,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:29:26,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:26,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-17 05:29:26,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:26,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:29:26,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:26,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-17 05:29:26,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:26,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:29:26,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:26,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-11-17 05:29:26,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:26,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:29:26,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:26,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-17 05:29:26,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:26,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:29:26,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:26,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-11-17 05:29:26,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:26,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:29:26,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:26,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-17 05:29:26,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:26,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:29:26,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:26,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-17 05:29:26,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:26,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:29:26,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:26,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 05:29:26,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:26,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:29:26,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:26,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:29:26,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:26,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-11-17 05:29:26,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:26,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 05:29:26,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:26,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:29:26,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:26,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:29:26,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:26,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-11-17 05:29:26,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:26,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:29:26,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:26,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:29:26,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:26,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-11-17 05:29:26,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:26,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:29:26,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:26,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:29:26,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:26,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-11-17 05:29:26,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:26,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:29:26,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:26,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:29:26,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:26,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-11-17 05:29:26,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:26,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:29:26,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:26,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:29:26,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:26,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2021-11-17 05:29:26,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:26,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2021-11-17 05:29:26,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:26,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-11-17 05:29:26,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:26,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2021-11-17 05:29:26,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:26,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:29:26,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:26,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2021-11-17 05:29:26,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:26,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:29:26,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:26,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 05:29:26,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:26,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-11-17 05:29:26,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:26,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2021-11-17 05:29:26,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:26,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2021-11-17 05:29:26,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:29:26,941 INFO L134 CoverageAnalysis]: Checked inductivity of 799 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 799 trivial. 0 not checked. [2021-11-17 05:29:26,942 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 05:29:26,942 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949036241] [2021-11-17 05:29:26,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949036241] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 05:29:26,942 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 05:29:26,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-17 05:29:26,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566175297] [2021-11-17 05:29:26,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 05:29:26,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 05:29:26,944 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 05:29:26,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 05:29:26,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-11-17 05:29:26,945 INFO L87 Difference]: Start difference. First operand 38964 states and 55348 transitions. Second operand has 8 states, 8 states have (on average 14.5) internal successors, (116), 3 states have internal predecessors, (116), 3 states have call successors, (37), 8 states have call predecessors, (37), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-17 05:29:33,521 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 05:29:35,557 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:29:50,755 WARN L515 Checker$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 05:29:52,789 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:29:56,069 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:29:58,110 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:30:00,777 WARN L515 Checker$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 05:30:02,810 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:30:06,025 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:30:08,056 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:30:11,218 WARN L515 Checker$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 05:30:13,250 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:30:16,294 WARN L515 Checker$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 05:30:18,359 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:30:19,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 05:30:19,040 INFO L93 Difference]: Finished difference Result 42499 states and 60959 transitions. [2021-11-17 05:30:19,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 05:30:19,041 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.5) internal successors, (116), 3 states have internal predecessors, (116), 3 states have call successors, (37), 8 states have call predecessors, (37), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 367 [2021-11-17 05:30:19,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 05:30:19,045 INFO L225 Difference]: With dead ends: 42499 [2021-11-17 05:30:19,045 INFO L226 Difference]: Without dead ends: 0 [2021-11-17 05:30:19,137 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-11-17 05:30:19,138 INFO L933 BasicCegarLoop]: 3943 mSDtfsCounter, 5050 mSDsluCounter, 5081 mSDsCounter, 0 mSdLazyCounter, 3683 mSolverCounterSat, 3056 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5597 SdHoareTripleChecker+Valid, 9024 SdHoareTripleChecker+Invalid, 6751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3056 IncrementalHoareTripleChecker+Valid, 3683 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50.7s IncrementalHoareTripleChecker+Time [2021-11-17 05:30:19,139 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5597 Valid, 9024 Invalid, 6751 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3056 Valid, 3683 Invalid, 12 Unknown, 0 Unchecked, 50.7s Time] [2021-11-17 05:30:19,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-17 05:30:19,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-17 05:30:19,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-17 05:30:19,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-17 05:30:19,151 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 367 [2021-11-17 05:30:19,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 05:30:19,151 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-17 05:30:19,151 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.5) internal successors, (116), 3 states have internal predecessors, (116), 3 states have call successors, (37), 8 states have call predecessors, (37), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-17 05:30:19,152 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-17 05:30:19,152 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-17 05:30:19,154 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-17 05:30:19,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-17 05:30:19,158 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. Killed by 15