./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--wan--lmc--lmc.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 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--wan--lmc--lmc.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 66b2f104726c03e3846e38f6b09c6a45d6c8d058156e96895db9342600740310 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 01:38:13,375 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 01:38:13,377 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 01:38:13,424 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 01:38:13,425 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 01:38:13,426 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 01:38:13,428 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 01:38:13,431 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 01:38:13,432 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 01:38:13,438 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 01:38:13,440 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 01:38:13,442 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 01:38:13,442 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 01:38:13,444 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 01:38:13,446 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 01:38:13,449 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 01:38:13,451 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 01:38:13,453 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 01:38:13,454 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 01:38:13,457 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 01:38:13,460 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 01:38:13,461 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 01:38:13,462 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 01:38:13,463 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 01:38:13,465 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 01:38:13,469 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 01:38:13,469 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 01:38:13,470 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 01:38:13,471 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 01:38:13,471 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 01:38:13,472 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 01:38:13,473 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 01:38:13,474 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 01:38:13,475 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 01:38:13,475 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 01:38:13,476 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 01:38:13,476 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 01:38:13,477 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 01:38:13,477 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 01:38:13,478 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 01:38:13,478 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 01:38:13,480 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 01:38:13,482 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-23 01:38:13,517 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 01:38:13,517 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 01:38:13,518 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 01:38:13,518 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 01:38:13,520 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 01:38:13,520 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 01:38:13,520 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 01:38:13,521 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 01:38:13,521 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 01:38:13,522 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 01:38:13,522 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 01:38:13,522 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 01:38:13,522 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 01:38:13,522 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 01:38:13,523 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 01:38:13,523 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 01:38:13,523 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 01:38:13,523 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 01:38:13,523 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 01:38:13,525 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 01:38:13,525 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 01:38:13,525 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 01:38:13,525 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 01:38:13,525 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 01:38:13,526 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 01:38:13,526 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 01:38:13,526 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-23 01:38:13,526 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-23 01:38:13,526 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-23 01:38:13,526 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 01:38:13,527 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 66b2f104726c03e3846e38f6b09c6a45d6c8d058156e96895db9342600740310 [2022-07-23 01:38:13,773 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 01:38:13,795 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 01:38:13,797 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 01:38:13,798 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 01:38:13,799 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 01:38:13,801 INFO L432 ainManager$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--wan--lmc--lmc.ko-entry_point.cil.out.i [2022-07-23 01:38:13,865 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7817657d/63ef39f6d5fc4045b997c31b2283b99a/FLAG85e67f2d2 [2022-07-23 01:38:14,769 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 01:38:14,770 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--wan--lmc--lmc.ko-entry_point.cil.out.i [2022-07-23 01:38:14,821 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7817657d/63ef39f6d5fc4045b997c31b2283b99a/FLAG85e67f2d2 [2022-07-23 01:38:15,242 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7817657d/63ef39f6d5fc4045b997c31b2283b99a [2022-07-23 01:38:15,245 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 01:38:15,246 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 01:38:15,248 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 01:38:15,248 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 01:38:15,251 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 01:38:15,251 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 01:38:15" (1/1) ... [2022-07-23 01:38:15,252 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cbda67d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:38:15, skipping insertion in model container [2022-07-23 01:38:15,253 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 01:38:15" (1/1) ... [2022-07-23 01:38:15,260 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 01:38:15,399 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 01:38:17,336 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--wan--lmc--lmc.ko-entry_point.cil.out.i[287455,287468] [2022-07-23 01:38:17,400 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 01:38:17,443 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 01:38:18,001 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--wan--lmc--lmc.ko-entry_point.cil.out.i[287455,287468] [2022-07-23 01:38:18,008 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 01:38:18,103 INFO L208 MainTranslator]: Completed translation [2022-07-23 01:38:18,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:38:18 WrapperNode [2022-07-23 01:38:18,106 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 01:38:18,107 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 01:38:18,107 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 01:38:18,108 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 01:38:18,114 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:38:18" (1/1) ... [2022-07-23 01:38:18,208 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:38:18" (1/1) ... [2022-07-23 01:38:18,377 INFO L137 Inliner]: procedures = 274, calls = 2121, calls flagged for inlining = 123, calls inlined = 120, statements flattened = 4456 [2022-07-23 01:38:18,378 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 01:38:18,379 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 01:38:18,379 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 01:38:18,380 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 01:38:18,387 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:38:18" (1/1) ... [2022-07-23 01:38:18,388 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:38:18" (1/1) ... [2022-07-23 01:38:18,437 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:38:18" (1/1) ... [2022-07-23 01:38:18,445 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:38:18" (1/1) ... [2022-07-23 01:38:18,576 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:38:18" (1/1) ... [2022-07-23 01:38:18,604 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:38:18" (1/1) ... [2022-07-23 01:38:18,629 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:38:18" (1/1) ... [2022-07-23 01:38:18,651 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 01:38:18,653 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 01:38:18,653 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 01:38:18,653 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 01:38:18,654 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:38:18" (1/1) ... [2022-07-23 01:38:18,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 01:38:18,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 01:38:18,682 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) [2022-07-23 01:38:18,697 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 [2022-07-23 01:38:18,732 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_running_reset [2022-07-23 01:38:18,732 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_running_reset [2022-07-23 01:38:18,732 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_open [2022-07-23 01:38:18,732 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_open [2022-07-23 01:38:18,733 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-23 01:38:18,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-23 01:38:18,733 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-23 01:38:18,733 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-23 01:38:18,733 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-23 01:38:18,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-23 01:38:18,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-23 01:38:18,734 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-23 01:38:18,734 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_dec_reset [2022-07-23 01:38:18,734 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_dec_reset [2022-07-23 01:38:18,734 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_get_link_status [2022-07-23 01:38:18,734 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_get_link_status [2022-07-23 01:38:18,734 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-23 01:38:18,735 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-23 01:38:18,735 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-07-23 01:38:18,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-07-23 01:38:18,735 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-23 01:38:18,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-23 01:38:18,735 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_set_circuit_type [2022-07-23 01:38:18,735 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_set_circuit_type [2022-07-23 01:38:18,736 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_gpio_mkinput [2022-07-23 01:38:18,736 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_gpio_mkinput [2022-07-23 01:38:18,736 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-23 01:38:18,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-23 01:38:18,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-23 01:38:18,736 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-23 01:38:18,736 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-23 01:38:18,737 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-23 01:38:18,737 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_100ft [2022-07-23 01:38:18,737 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_100ft [2022-07-23 01:38:18,737 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-23 01:38:18,737 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-23 01:38:18,737 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-07-23 01:38:18,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-07-23 01:38:18,738 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_scram [2022-07-23 01:38:18,738 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_scram [2022-07-23 01:38:18,738 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_change_mtu [2022-07-23 01:38:18,738 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_change_mtu [2022-07-23 01:38:18,739 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_close [2022-07-23 01:38:18,739 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_close [2022-07-23 01:38:18,739 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_gpio_mkoutput [2022-07-23 01:38:18,739 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_gpio_mkoutput [2022-07-23 01:38:18,739 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_reset [2022-07-23 01:38:18,740 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_reset [2022-07-23 01:38:18,740 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-23 01:38:18,740 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-23 01:38:18,740 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_get_stats [2022-07-23 01:38:18,740 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_get_stats [2022-07-23 01:38:18,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-23 01:38:18,740 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_sc [2022-07-23 01:38:18,741 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_sc [2022-07-23 01:38:18,741 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_driver_timeout [2022-07-23 01:38:18,742 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_driver_timeout [2022-07-23 01:38:18,742 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_netif [2022-07-23 01:38:18,742 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_netif [2022-07-23 01:38:18,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-23 01:38:18,743 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-07-23 01:38:18,743 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-07-23 01:38:18,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-07-23 01:38:18,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-07-23 01:38:18,743 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-23 01:38:18,743 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-23 01:38:18,744 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_trace [2022-07-23 01:38:18,744 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_trace [2022-07-23 01:38:18,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-23 01:38:18,744 INFO L130 BoogieDeclarations]: Found specification of procedure write_av9110 [2022-07-23 01:38:18,744 INFO L138 BoogieDeclarations]: Found implementation of procedure write_av9110 [2022-07-23 01:38:18,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-23 01:38:18,745 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-07-23 01:38:18,745 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-07-23 01:38:18,746 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2022-07-23 01:38:18,746 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2022-07-23 01:38:18,746 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-23 01:38:18,746 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-23 01:38:18,746 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_type [2022-07-23 01:38:18,746 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_type [2022-07-23 01:38:18,746 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-23 01:38:18,747 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-23 01:38:18,747 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_remove_one [2022-07-23 01:38:18,747 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_remove_one [2022-07-23 01:38:18,747 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2022-07-23 01:38:18,747 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2022-07-23 01:38:18,747 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_write [2022-07-23 01:38:18,748 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_write [2022-07-23 01:38:18,748 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_close [2022-07-23 01:38:18,748 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_close [2022-07-23 01:38:18,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-23 01:38:18,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-23 01:38:18,749 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_led_off [2022-07-23 01:38:18,749 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_led_off [2022-07-23 01:38:18,749 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-23 01:38:18,750 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-23 01:38:18,750 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-23 01:38:18,750 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2022-07-23 01:38:18,750 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2022-07-23 01:38:18,751 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-07-23 01:38:18,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-07-23 01:38:18,751 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-23 01:38:18,752 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-23 01:38:18,752 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_softreset [2022-07-23 01:38:18,752 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_softreset [2022-07-23 01:38:18,752 INFO L130 BoogieDeclarations]: Found specification of procedure write_av9110_bit [2022-07-23 01:38:18,752 INFO L138 BoogieDeclarations]: Found implementation of procedure write_av9110_bit [2022-07-23 01:38:18,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-23 01:38:18,752 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-23 01:38:18,753 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-23 01:38:18,753 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-07-23 01:38:18,753 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-07-23 01:38:18,753 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2022-07-23 01:38:18,753 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2022-07-23 01:38:18,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-23 01:38:18,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-23 01:38:18,754 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_mii_writereg [2022-07-23 01:38:18,755 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_mii_writereg [2022-07-23 01:38:18,755 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ioctl [2022-07-23 01:38:18,757 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ioctl [2022-07-23 01:38:18,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-23 01:38:18,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-23 01:38:18,758 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_attach [2022-07-23 01:38:18,758 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_attach [2022-07-23 01:38:18,760 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_phys [2022-07-23 01:38:18,760 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_phys [2022-07-23 01:38:18,760 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_status [2022-07-23 01:38:18,760 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_status [2022-07-23 01:38:18,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-23 01:38:18,766 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-23 01:38:18,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-23 01:38:18,766 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-07-23 01:38:18,767 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-07-23 01:38:18,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-23 01:38:18,767 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-23 01:38:18,767 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-23 01:38:18,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-23 01:38:18,767 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_mii_readreg [2022-07-23 01:38:18,767 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_mii_readreg [2022-07-23 01:38:18,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-07-23 01:38:18,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-07-23 01:38:18,768 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2022-07-23 01:38:18,768 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2022-07-23 01:38:18,768 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-23 01:38:18,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-23 01:38:18,768 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-07-23 01:38:18,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-07-23 01:38:18,768 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_open [2022-07-23 01:38:18,769 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_open [2022-07-23 01:38:18,769 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-07-23 01:38:18,769 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-07-23 01:38:18,769 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_led_on [2022-07-23 01:38:18,769 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_led_on [2022-07-23 01:38:18,769 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2022-07-23 01:38:18,769 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2022-07-23 01:38:18,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-23 01:38:18,770 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_set_protocol [2022-07-23 01:38:18,770 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_set_protocol [2022-07-23 01:38:18,770 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-07-23 01:38:18,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-07-23 01:38:18,770 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2022-07-23 01:38:18,770 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2022-07-23 01:38:18,770 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2022-07-23 01:38:18,770 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2022-07-23 01:38:18,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 01:38:18,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 01:38:18,771 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_relax [2022-07-23 01:38:18,771 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_relax [2022-07-23 01:38:19,401 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 01:38:19,404 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 01:38:20,382 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-23 01:38:24,970 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 01:38:24,987 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 01:38:24,987 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-23 01:38:24,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:38:24 BoogieIcfgContainer [2022-07-23 01:38:24,991 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 01:38:24,993 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-23 01:38:24,993 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-23 01:38:24,996 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-23 01:38:24,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 01:38:15" (1/3) ... [2022-07-23 01:38:24,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31f860e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 01:38:24, skipping insertion in model container [2022-07-23 01:38:24,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:38:18" (2/3) ... [2022-07-23 01:38:24,998 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31f860e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 01:38:24, skipping insertion in model container [2022-07-23 01:38:24,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:38:24" (3/3) ... [2022-07-23 01:38:24,999 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--wan--lmc--lmc.ko-entry_point.cil.out.i [2022-07-23 01:38:25,012 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-23 01:38:25,013 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-23 01:38:25,097 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-23 01:38:25,105 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5f60891b, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2c3703e0 [2022-07-23 01:38:25,105 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-23 01:38:25,119 INFO L276 IsEmpty]: Start isEmpty. Operand has 1853 states, 1213 states have (on average 1.3495465787304204) internal successors, (1637), 1261 states have internal predecessors, (1637), 563 states have call successors, (563), 76 states have call predecessors, (563), 75 states have return successors, (557), 542 states have call predecessors, (557), 557 states have call successors, (557) [2022-07-23 01:38:25,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-07-23 01:38:25,145 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:38:25,146 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-23 01:38:25,147 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:38:25,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:38:25,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1680503968, now seen corresponding path program 1 times [2022-07-23 01:38:25,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 01:38:25,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476357486] [2022-07-23 01:38:25,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:38:25,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 01:38:25,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:38:25,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 01:38:25,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:38:25,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:38:25,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:38:25,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:38:25,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:38:25,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 01:38:25,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:38:25,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:38:25,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:38:25,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:38:25,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:38:25,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 01:38:25,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:38:25,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:38:25,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:38:25,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:38:25,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:38:25,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-23 01:38:25,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:38:25,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:38:25,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:38:25,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-23 01:38:25,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:38:25,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:38:25,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:38:25,999 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-07-23 01:38:25,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 01:38:26,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476357486] [2022-07-23 01:38:26,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476357486] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:38:26,001 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:38:26,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-23 01:38:26,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088189731] [2022-07-23 01:38:26,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:38:26,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 01:38:26,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 01:38:26,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 01:38:26,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-23 01:38:26,043 INFO L87 Difference]: Start difference. First operand has 1853 states, 1213 states have (on average 1.3495465787304204) internal successors, (1637), 1261 states have internal predecessors, (1637), 563 states have call successors, (563), 76 states have call predecessors, (563), 75 states have return successors, (557), 542 states have call predecessors, (557), 557 states have call successors, (557) Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-23 01:38:30,716 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:38:32,744 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:38:37,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:38:37,789 INFO L93 Difference]: Finished difference Result 3925 states and 6020 transitions. [2022-07-23 01:38:37,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-23 01:38:37,802 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 92 [2022-07-23 01:38:37,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:38:37,845 INFO L225 Difference]: With dead ends: 3925 [2022-07-23 01:38:37,845 INFO L226 Difference]: Without dead ends: 2060 [2022-07-23 01:38:37,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-07-23 01:38:37,872 INFO L413 NwaCegarLoop]: 2462 mSDtfsCounter, 1261 mSDsluCounter, 2436 mSDsCounter, 0 mSdLazyCounter, 2924 mSolverCounterSat, 1514 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1302 SdHoareTripleChecker+Valid, 4898 SdHoareTripleChecker+Invalid, 4439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1514 IncrementalHoareTripleChecker+Valid, 2924 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2022-07-23 01:38:37,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1302 Valid, 4898 Invalid, 4439 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1514 Valid, 2924 Invalid, 1 Unknown, 0 Unchecked, 11.3s Time] [2022-07-23 01:38:37,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2060 states. [2022-07-23 01:38:38,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2060 to 1836. [2022-07-23 01:38:38,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1836 states, 1204 states have (on average 1.318936877076412) internal successors, (1588), 1244 states have internal predecessors, (1588), 557 states have call successors, (557), 75 states have call predecessors, (557), 74 states have return successors, (556), 541 states have call predecessors, (556), 556 states have call successors, (556) [2022-07-23 01:38:38,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1836 states to 1836 states and 2701 transitions. [2022-07-23 01:38:38,072 INFO L78 Accepts]: Start accepts. Automaton has 1836 states and 2701 transitions. Word has length 92 [2022-07-23 01:38:38,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:38:38,073 INFO L495 AbstractCegarLoop]: Abstraction has 1836 states and 2701 transitions. [2022-07-23 01:38:38,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-23 01:38:38,073 INFO L276 IsEmpty]: Start isEmpty. Operand 1836 states and 2701 transitions. [2022-07-23 01:38:38,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-07-23 01:38:38,077 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:38:38,077 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-23 01:38:38,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-23 01:38:38,078 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:38:38,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:38:38,079 INFO L85 PathProgramCache]: Analyzing trace with hash -1079032666, now seen corresponding path program 1 times [2022-07-23 01:38:38,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 01:38:38,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769420862] [2022-07-23 01:38:38,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:38:38,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 01:38:38,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:38:38,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 01:38:38,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:38:38,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:38:38,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:38:38,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:38:38,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:38:38,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 01:38:38,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:38:38,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:38:38,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:38:38,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:38:38,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:38:38,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 01:38:38,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:38:38,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:38:38,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:38:38,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:38:38,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:38:38,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-23 01:38:38,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:38:38,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:38:38,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:38:38,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-23 01:38:38,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:38:38,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:38:38,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:38:38,502 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-07-23 01:38:38,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 01:38:38,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769420862] [2022-07-23 01:38:38,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769420862] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:38:38,503 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:38:38,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-23 01:38:38,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447337987] [2022-07-23 01:38:38,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:38:38,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 01:38:38,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 01:38:38,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 01:38:38,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-23 01:38:38,509 INFO L87 Difference]: Start difference. First operand 1836 states and 2701 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-07-23 01:38:44,655 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:38:51,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:38:51,574 INFO L93 Difference]: Finished difference Result 5834 states and 8816 transitions. [2022-07-23 01:38:51,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-23 01:38:51,574 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 92 [2022-07-23 01:38:51,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:38:51,616 INFO L225 Difference]: With dead ends: 5834 [2022-07-23 01:38:51,616 INFO L226 Difference]: Without dead ends: 4016 [2022-07-23 01:38:51,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-23 01:38:51,669 INFO L413 NwaCegarLoop]: 3140 mSDtfsCounter, 4508 mSDsluCounter, 3780 mSDsCounter, 0 mSdLazyCounter, 4327 mSolverCounterSat, 3200 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4836 SdHoareTripleChecker+Valid, 6920 SdHoareTripleChecker+Invalid, 7528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3200 IncrementalHoareTripleChecker+Valid, 4327 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2022-07-23 01:38:51,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4836 Valid, 6920 Invalid, 7528 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3200 Valid, 4327 Invalid, 1 Unknown, 0 Unchecked, 12.5s Time] [2022-07-23 01:38:51,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4016 states. [2022-07-23 01:38:51,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4016 to 3567. [2022-07-23 01:38:51,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3567 states, 2332 states have (on average 1.3203259005145798) internal successors, (3079), 2410 states have internal predecessors, (3079), 1087 states have call successors, (1087), 148 states have call predecessors, (1087), 147 states have return successors, (1086), 1056 states have call predecessors, (1086), 1086 states have call successors, (1086) [2022-07-23 01:38:51,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3567 states to 3567 states and 5252 transitions. [2022-07-23 01:38:51,868 INFO L78 Accepts]: Start accepts. Automaton has 3567 states and 5252 transitions. Word has length 92 [2022-07-23 01:38:51,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:38:51,870 INFO L495 AbstractCegarLoop]: Abstraction has 3567 states and 5252 transitions. [2022-07-23 01:38:51,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-07-23 01:38:51,870 INFO L276 IsEmpty]: Start isEmpty. Operand 3567 states and 5252 transitions. [2022-07-23 01:38:51,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-07-23 01:38:51,878 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:38:51,878 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-07-23 01:38:51,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-23 01:38:51,879 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:38:51,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:38:51,880 INFO L85 PathProgramCache]: Analyzing trace with hash 761947638, now seen corresponding path program 1 times [2022-07-23 01:38:51,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 01:38:51,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15205036] [2022-07-23 01:38:51,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:38:51,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 01:38:51,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:38:52,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 01:38:52,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:38:52,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:38:52,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:38:52,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:38:52,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:38:52,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 01:38:52,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:38:52,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:38:52,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:38:52,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:38:52,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:38:52,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 01:38:52,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:38:52,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:38:52,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:38:52,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:38:52,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:38:52,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-23 01:38:52,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:38:52,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:38:52,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:38:52,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-23 01:38:52,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:38:52,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:38:52,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:38:52,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-23 01:38:52,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:38:52,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:38:52,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:38:52,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:38:52,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:38:52,232 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-07-23 01:38:52,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 01:38:52,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15205036] [2022-07-23 01:38:52,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15205036] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:38:52,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:38:52,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-23 01:38:52,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805922803] [2022-07-23 01:38:52,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:38:52,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 01:38:52,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 01:38:52,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 01:38:52,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-23 01:38:52,240 INFO L87 Difference]: Start difference. First operand 3567 states and 5252 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2022-07-23 01:38:55,957 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:38:57,983 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:39:01,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:39:01,635 INFO L93 Difference]: Finished difference Result 7551 states and 11353 transitions. [2022-07-23 01:39:01,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-23 01:39:01,636 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 122 [2022-07-23 01:39:01,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:39:01,674 INFO L225 Difference]: With dead ends: 7551 [2022-07-23 01:39:01,675 INFO L226 Difference]: Without dead ends: 4012 [2022-07-23 01:39:01,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-07-23 01:39:01,711 INFO L413 NwaCegarLoop]: 2392 mSDtfsCounter, 3657 mSDsluCounter, 1578 mSDsCounter, 0 mSdLazyCounter, 2210 mSolverCounterSat, 2051 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3959 SdHoareTripleChecker+Valid, 3970 SdHoareTripleChecker+Invalid, 4263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2051 IncrementalHoareTripleChecker+Valid, 2210 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2022-07-23 01:39:01,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3959 Valid, 3970 Invalid, 4263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2051 Valid, 2210 Invalid, 2 Unknown, 0 Unchecked, 9.1s Time] [2022-07-23 01:39:01,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4012 states. [2022-07-23 01:39:01,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4012 to 3567. [2022-07-23 01:39:01,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3567 states, 2332 states have (on average 1.3198970840480275) internal successors, (3078), 2410 states have internal predecessors, (3078), 1087 states have call successors, (1087), 148 states have call predecessors, (1087), 147 states have return successors, (1086), 1056 states have call predecessors, (1086), 1086 states have call successors, (1086) [2022-07-23 01:39:01,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3567 states to 3567 states and 5251 transitions. [2022-07-23 01:39:01,917 INFO L78 Accepts]: Start accepts. Automaton has 3567 states and 5251 transitions. Word has length 122 [2022-07-23 01:39:01,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:39:01,919 INFO L495 AbstractCegarLoop]: Abstraction has 3567 states and 5251 transitions. [2022-07-23 01:39:01,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2022-07-23 01:39:01,919 INFO L276 IsEmpty]: Start isEmpty. Operand 3567 states and 5251 transitions. [2022-07-23 01:39:01,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-07-23 01:39:01,922 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:39:01,923 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-07-23 01:39:01,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-23 01:39:01,923 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:39:01,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:39:01,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1579596088, now seen corresponding path program 1 times [2022-07-23 01:39:01,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 01:39:01,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949475125] [2022-07-23 01:39:01,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:39:01,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 01:39:02,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:02,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 01:39:02,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:02,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:39:02,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:02,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:39:02,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:02,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 01:39:02,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:02,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:39:02,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:02,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:39:02,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:02,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 01:39:02,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:02,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:39:02,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:02,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:39:02,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:02,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-23 01:39:02,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:02,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:39:02,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:02,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-23 01:39:02,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:02,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:39:02,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:02,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-23 01:39:02,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:02,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:39:02,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:02,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:39:02,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:02,321 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2022-07-23 01:39:02,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 01:39:02,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949475125] [2022-07-23 01:39:02,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949475125] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:39:02,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:39:02,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-23 01:39:02,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707380881] [2022-07-23 01:39:02,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:39:02,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 01:39:02,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 01:39:02,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 01:39:02,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-23 01:39:02,325 INFO L87 Difference]: Start difference. First operand 3567 states and 5251 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (12), 6 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-23 01:39:06,240 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:39:11,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:39:11,572 INFO L93 Difference]: Finished difference Result 6676 states and 10212 transitions. [2022-07-23 01:39:11,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-23 01:39:11,573 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (12), 6 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 122 [2022-07-23 01:39:11,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:39:11,654 INFO L225 Difference]: With dead ends: 6676 [2022-07-23 01:39:11,654 INFO L226 Difference]: Without dead ends: 6673 [2022-07-23 01:39:11,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-23 01:39:11,666 INFO L413 NwaCegarLoop]: 3490 mSDtfsCounter, 4403 mSDsluCounter, 2521 mSDsCounter, 0 mSdLazyCounter, 2967 mSolverCounterSat, 3607 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4644 SdHoareTripleChecker+Valid, 6011 SdHoareTripleChecker+Invalid, 6575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3607 IncrementalHoareTripleChecker+Valid, 2967 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2022-07-23 01:39:11,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4644 Valid, 6011 Invalid, 6575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3607 Valid, 2967 Invalid, 1 Unknown, 0 Unchecked, 8.9s Time] [2022-07-23 01:39:11,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6673 states. [2022-07-23 01:39:12,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6673 to 5982. [2022-07-23 01:39:12,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5982 states, 3905 states have (on average 1.313956466069142) internal successors, (5131), 4047 states have internal predecessors, (5131), 1815 states have call successors, (1815), 258 states have call predecessors, (1815), 261 states have return successors, (1901), 1758 states have call predecessors, (1901), 1814 states have call successors, (1901) [2022-07-23 01:39:12,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5982 states to 5982 states and 8847 transitions. [2022-07-23 01:39:12,087 INFO L78 Accepts]: Start accepts. Automaton has 5982 states and 8847 transitions. Word has length 122 [2022-07-23 01:39:12,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:39:12,088 INFO L495 AbstractCegarLoop]: Abstraction has 5982 states and 8847 transitions. [2022-07-23 01:39:12,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (12), 6 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-23 01:39:12,089 INFO L276 IsEmpty]: Start isEmpty. Operand 5982 states and 8847 transitions. [2022-07-23 01:39:12,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-07-23 01:39:12,107 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:39:12,108 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 01:39:12,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-23 01:39:12,108 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:39:12,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:39:12,109 INFO L85 PathProgramCache]: Analyzing trace with hash 974747441, now seen corresponding path program 1 times [2022-07-23 01:39:12,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 01:39:12,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359894786] [2022-07-23 01:39:12,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:39:12,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 01:39:12,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:12,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 01:39:12,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:12,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:39:12,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:12,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:39:12,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:12,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 01:39:12,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:12,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:39:12,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:12,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:39:12,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:12,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 01:39:12,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:12,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:39:12,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:12,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:39:12,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:12,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-23 01:39:12,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:12,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:39:12,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:12,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-23 01:39:12,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:12,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:39:12,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:12,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-23 01:39:12,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:12,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:39:12,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:12,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-23 01:39:12,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:12,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-23 01:39:12,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:12,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-23 01:39:12,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:12,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-23 01:39:12,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:12,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-23 01:39:12,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:12,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-23 01:39:12,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:12,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:39:12,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:12,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-23 01:39:12,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:12,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-23 01:39:12,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:12,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:39:12,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:12,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-23 01:39:12,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:12,565 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-07-23 01:39:12,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 01:39:12,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359894786] [2022-07-23 01:39:12,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359894786] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:39:12,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:39:12,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-23 01:39:12,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031945515] [2022-07-23 01:39:12,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:39:12,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-23 01:39:12,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 01:39:12,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-23 01:39:12,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-23 01:39:12,568 INFO L87 Difference]: Start difference. First operand 5982 states and 8847 transitions. Second operand has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 4 states have internal predecessors, (87), 3 states have call successors, (24), 7 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-07-23 01:39:17,301 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:39:25,524 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:39:29,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:39:29,069 INFO L93 Difference]: Finished difference Result 19554 states and 29727 transitions. [2022-07-23 01:39:29,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-23 01:39:29,071 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 4 states have internal predecessors, (87), 3 states have call successors, (24), 7 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 181 [2022-07-23 01:39:29,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:39:29,236 INFO L225 Difference]: With dead ends: 19554 [2022-07-23 01:39:29,236 INFO L226 Difference]: Without dead ends: 13604 [2022-07-23 01:39:29,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2022-07-23 01:39:29,271 INFO L413 NwaCegarLoop]: 2388 mSDtfsCounter, 7904 mSDsluCounter, 5152 mSDsCounter, 0 mSdLazyCounter, 9677 mSolverCounterSat, 7692 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8363 SdHoareTripleChecker+Valid, 7540 SdHoareTripleChecker+Invalid, 17371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7692 IncrementalHoareTripleChecker+Valid, 9677 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.5s IncrementalHoareTripleChecker+Time [2022-07-23 01:39:29,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8363 Valid, 7540 Invalid, 17371 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7692 Valid, 9677 Invalid, 2 Unknown, 0 Unchecked, 15.5s Time] [2022-07-23 01:39:29,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13604 states. [2022-07-23 01:39:29,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13604 to 12449. [2022-07-23 01:39:30,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12449 states, 8119 states have (on average 1.3087818696883853) internal successors, (10626), 8403 states have internal predecessors, (10626), 3777 states have call successors, (3777), 513 states have call predecessors, (3777), 552 states have return successors, (4166), 3700 states have call predecessors, (4166), 3776 states have call successors, (4166) [2022-07-23 01:39:30,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12449 states to 12449 states and 18569 transitions. [2022-07-23 01:39:30,120 INFO L78 Accepts]: Start accepts. Automaton has 12449 states and 18569 transitions. Word has length 181 [2022-07-23 01:39:30,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:39:30,122 INFO L495 AbstractCegarLoop]: Abstraction has 12449 states and 18569 transitions. [2022-07-23 01:39:30,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 4 states have internal predecessors, (87), 3 states have call successors, (24), 7 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-07-23 01:39:30,122 INFO L276 IsEmpty]: Start isEmpty. Operand 12449 states and 18569 transitions. [2022-07-23 01:39:30,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-07-23 01:39:30,141 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:39:30,141 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 01:39:30,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-23 01:39:30,142 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:39:30,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:39:30,142 INFO L85 PathProgramCache]: Analyzing trace with hash 2068297748, now seen corresponding path program 1 times [2022-07-23 01:39:30,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 01:39:30,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375983363] [2022-07-23 01:39:30,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:39:30,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 01:39:30,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:30,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 01:39:30,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:30,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:39:30,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:30,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:39:30,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:30,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 01:39:30,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:30,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:39:30,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:30,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:39:30,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:30,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 01:39:30,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:30,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:39:30,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:30,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:39:30,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:30,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-23 01:39:30,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:30,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:39:30,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:30,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-23 01:39:30,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:30,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:39:30,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:30,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-23 01:39:30,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:30,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:39:30,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:30,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-23 01:39:30,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:30,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-23 01:39:30,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:30,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-23 01:39:30,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:30,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-23 01:39:30,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:30,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-23 01:39:30,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:30,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-23 01:39:30,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:30,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:39:30,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:30,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-23 01:39:30,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:30,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-23 01:39:30,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:30,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:39:30,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:30,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-23 01:39:30,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:30,535 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-07-23 01:39:30,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 01:39:30,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375983363] [2022-07-23 01:39:30,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375983363] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:39:30,535 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:39:30,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-23 01:39:30,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760586970] [2022-07-23 01:39:30,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:39:30,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-23 01:39:30,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 01:39:30,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-23 01:39:30,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-23 01:39:30,537 INFO L87 Difference]: Start difference. First operand 12449 states and 18569 transitions. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 4 states have internal predecessors, (85), 3 states have call successors, (24), 7 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-07-23 01:39:37,378 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:39:39,399 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:39:43,323 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:39:50,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:39:50,454 INFO L93 Difference]: Finished difference Result 39559 states and 60343 transitions. [2022-07-23 01:39:50,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-23 01:39:50,455 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 4 states have internal predecessors, (85), 3 states have call successors, (24), 7 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 179 [2022-07-23 01:39:50,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:39:50,758 INFO L225 Difference]: With dead ends: 39559 [2022-07-23 01:39:50,758 INFO L226 Difference]: Without dead ends: 27142 [2022-07-23 01:39:50,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2022-07-23 01:39:50,835 INFO L413 NwaCegarLoop]: 2429 mSDtfsCounter, 6491 mSDsluCounter, 6441 mSDsCounter, 0 mSdLazyCounter, 12799 mSolverCounterSat, 5980 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6949 SdHoareTripleChecker+Valid, 8870 SdHoareTripleChecker+Invalid, 18781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5980 IncrementalHoareTripleChecker+Valid, 12799 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.6s IncrementalHoareTripleChecker+Time [2022-07-23 01:39:50,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6949 Valid, 8870 Invalid, 18781 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5980 Valid, 12799 Invalid, 2 Unknown, 0 Unchecked, 18.6s Time] [2022-07-23 01:39:50,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27142 states. [2022-07-23 01:39:52,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27142 to 24813. [2022-07-23 01:39:52,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24813 states, 16167 states have (on average 1.3073544875363394) internal successors, (21136), 16749 states have internal predecessors, (21136), 7543 states have call successors, (7543), 1023 states have call predecessors, (7543), 1102 states have return successors, (8388), 7376 states have call predecessors, (8388), 7542 states have call successors, (8388) [2022-07-23 01:39:52,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24813 states to 24813 states and 37067 transitions. [2022-07-23 01:39:52,446 INFO L78 Accepts]: Start accepts. Automaton has 24813 states and 37067 transitions. Word has length 179 [2022-07-23 01:39:52,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:39:52,446 INFO L495 AbstractCegarLoop]: Abstraction has 24813 states and 37067 transitions. [2022-07-23 01:39:52,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 4 states have internal predecessors, (85), 3 states have call successors, (24), 7 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-07-23 01:39:52,446 INFO L276 IsEmpty]: Start isEmpty. Operand 24813 states and 37067 transitions. [2022-07-23 01:39:52,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-07-23 01:39:52,478 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:39:52,478 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 01:39:52,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-23 01:39:52,479 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:39:52,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:39:52,479 INFO L85 PathProgramCache]: Analyzing trace with hash -463545444, now seen corresponding path program 1 times [2022-07-23 01:39:52,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 01:39:52,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486055152] [2022-07-23 01:39:52,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:39:52,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 01:39:52,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:52,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 01:39:52,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:52,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:39:52,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:52,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:39:52,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:52,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 01:39:52,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:52,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:39:52,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:52,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:39:52,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:52,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 01:39:52,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:52,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:39:52,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:52,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:39:52,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:52,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-23 01:39:52,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:52,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:39:52,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:52,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-23 01:39:52,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:52,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:39:52,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:52,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-23 01:39:52,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:52,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:39:52,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:52,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-23 01:39:52,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:52,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-23 01:39:52,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:52,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-23 01:39:52,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:52,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-23 01:39:52,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:52,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-23 01:39:52,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:52,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-23 01:39:52,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:52,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:39:52,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:52,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-23 01:39:52,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:52,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-23 01:39:52,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:52,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:39:52,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:52,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-23 01:39:52,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:39:52,996 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-07-23 01:39:52,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 01:39:52,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486055152] [2022-07-23 01:39:52,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486055152] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:39:52,997 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:39:52,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-23 01:39:52,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509267131] [2022-07-23 01:39:52,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:39:52,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-23 01:39:52,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 01:39:52,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-23 01:39:52,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-23 01:39:52,999 INFO L87 Difference]: Start difference. First operand 24813 states and 37067 transitions. Second operand has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 4 states have internal predecessors, (86), 3 states have call successors, (24), 7 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-07-23 01:40:06,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:40:06,012 INFO L93 Difference]: Finished difference Result 78987 states and 120503 transitions. [2022-07-23 01:40:06,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-23 01:40:06,013 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 4 states have internal predecessors, (86), 3 states have call successors, (24), 7 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 180 [2022-07-23 01:40:06,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:40:06,564 INFO L225 Difference]: With dead ends: 78987 [2022-07-23 01:40:06,564 INFO L226 Difference]: Without dead ends: 54206 [2022-07-23 01:40:06,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2022-07-23 01:40:06,738 INFO L413 NwaCegarLoop]: 2393 mSDtfsCounter, 7898 mSDsluCounter, 5155 mSDsCounter, 0 mSdLazyCounter, 9698 mSolverCounterSat, 7700 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8354 SdHoareTripleChecker+Valid, 7548 SdHoareTripleChecker+Invalid, 17398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7700 IncrementalHoareTripleChecker+Valid, 9698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2022-07-23 01:40:06,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8354 Valid, 7548 Invalid, 17398 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7700 Valid, 9698 Invalid, 0 Unknown, 0 Unchecked, 10.6s Time] [2022-07-23 01:40:06,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54206 states. [2022-07-23 01:40:09,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54206 to 49589. [2022-07-23 01:40:09,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49589 states, 32311 states have (on average 1.3063043545541766) internal successors, (42208), 33471 states have internal predecessors, (42208), 15073 states have call successors, (15073), 2045 states have call predecessors, (15073), 2204 states have return successors, (16866), 14744 states have call predecessors, (16866), 15072 states have call successors, (16866) [2022-07-23 01:40:10,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49589 states to 49589 states and 74147 transitions. [2022-07-23 01:40:10,090 INFO L78 Accepts]: Start accepts. Automaton has 49589 states and 74147 transitions. Word has length 180 [2022-07-23 01:40:10,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:40:10,090 INFO L495 AbstractCegarLoop]: Abstraction has 49589 states and 74147 transitions. [2022-07-23 01:40:10,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 4 states have internal predecessors, (86), 3 states have call successors, (24), 7 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-07-23 01:40:10,091 INFO L276 IsEmpty]: Start isEmpty. Operand 49589 states and 74147 transitions. [2022-07-23 01:40:10,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-07-23 01:40:10,118 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:40:10,118 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 01:40:10,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-23 01:40:10,119 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:40:10,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:40:10,119 INFO L85 PathProgramCache]: Analyzing trace with hash 933207129, now seen corresponding path program 1 times [2022-07-23 01:40:10,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 01:40:10,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369372720] [2022-07-23 01:40:10,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:40:10,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 01:40:10,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:10,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 01:40:10,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:10,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:40:10,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:10,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:40:10,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:10,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 01:40:10,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:10,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:40:10,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:10,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:40:10,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:10,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 01:40:10,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:10,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:40:10,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:10,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:40:10,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:10,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-23 01:40:10,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:10,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:40:10,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:10,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-23 01:40:10,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:10,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:40:10,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:10,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-23 01:40:10,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:10,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:40:10,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:10,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-23 01:40:10,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:10,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-23 01:40:10,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:10,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-23 01:40:10,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:10,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-23 01:40:10,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:10,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-23 01:40:10,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:10,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-23 01:40:10,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:10,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:40:10,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:10,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-23 01:40:10,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:10,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-23 01:40:10,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:10,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:40:10,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:10,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-23 01:40:10,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:10,681 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-07-23 01:40:10,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 01:40:10,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369372720] [2022-07-23 01:40:10,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369372720] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:40:10,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:40:10,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-23 01:40:10,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972644374] [2022-07-23 01:40:10,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:40:10,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-23 01:40:10,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 01:40:10,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-23 01:40:10,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-23 01:40:10,684 INFO L87 Difference]: Start difference. First operand 49589 states and 74147 transitions. Second operand has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 4 states have internal predecessors, (88), 3 states have call successors, (24), 7 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-07-23 01:40:16,575 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:40:27,685 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:40:32,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:40:32,911 INFO L93 Difference]: Finished difference Result 157001 states and 239569 transitions. [2022-07-23 01:40:32,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-23 01:40:32,912 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 4 states have internal predecessors, (88), 3 states have call successors, (24), 7 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 182 [2022-07-23 01:40:32,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:40:34,126 INFO L225 Difference]: With dead ends: 157001 [2022-07-23 01:40:34,127 INFO L226 Difference]: Without dead ends: 107444 [2022-07-23 01:40:34,531 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2022-07-23 01:40:34,532 INFO L413 NwaCegarLoop]: 2368 mSDtfsCounter, 6533 mSDsluCounter, 6208 mSDsCounter, 0 mSdLazyCounter, 12756 mSolverCounterSat, 6133 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6988 SdHoareTripleChecker+Valid, 8576 SdHoareTripleChecker+Invalid, 18890 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6133 IncrementalHoareTripleChecker+Valid, 12756 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.7s IncrementalHoareTripleChecker+Time [2022-07-23 01:40:34,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6988 Valid, 8576 Invalid, 18890 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6133 Valid, 12756 Invalid, 1 Unknown, 0 Unchecked, 17.7s Time] [2022-07-23 01:40:34,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107444 states. [2022-07-23 01:40:38,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107444 to 98383. [2022-07-23 01:40:38,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98383 states, 64033 states have (on average 1.3049521340558774) internal successors, (83560), 66329 states have internal predecessors, (83560), 29961 states have call successors, (29961), 4069 states have call predecessors, (29961), 4388 states have return successors, (33712), 29314 states have call predecessors, (33712), 29960 states have call successors, (33712) [2022-07-23 01:40:40,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98383 states to 98383 states and 147233 transitions. [2022-07-23 01:40:40,185 INFO L78 Accepts]: Start accepts. Automaton has 98383 states and 147233 transitions. Word has length 182 [2022-07-23 01:40:40,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:40:40,186 INFO L495 AbstractCegarLoop]: Abstraction has 98383 states and 147233 transitions. [2022-07-23 01:40:40,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 4 states have internal predecessors, (88), 3 states have call successors, (24), 7 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-07-23 01:40:40,186 INFO L276 IsEmpty]: Start isEmpty. Operand 98383 states and 147233 transitions. [2022-07-23 01:40:40,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-07-23 01:40:40,219 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:40:40,219 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 01:40:40,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-23 01:40:40,220 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:40:40,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:40:40,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1378018866, now seen corresponding path program 1 times [2022-07-23 01:40:40,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 01:40:40,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566236030] [2022-07-23 01:40:40,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:40:40,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 01:40:40,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:40,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 01:40:40,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:40,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:40:40,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:40,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:40:40,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:40,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 01:40:40,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:40,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:40:40,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:40,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:40:40,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:40,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 01:40:40,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:40,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:40:40,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:40,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:40:40,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:40,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-23 01:40:40,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:40,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:40:40,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:40,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-23 01:40:40,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:40,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:40:40,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:40,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-23 01:40:40,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:40,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-23 01:40:40,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:40,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:40:40,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:40,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-23 01:40:40,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:40,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-23 01:40:40,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:40,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-23 01:40:40,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:40,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-23 01:40:40,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:40,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-23 01:40:40,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:40,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-23 01:40:40,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:40,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:40:40,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:40,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-23 01:40:40,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:40,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-07-23 01:40:40,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:40,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:40:40,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:40,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-23 01:40:40,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:40,639 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-07-23 01:40:40,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 01:40:40,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566236030] [2022-07-23 01:40:40,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566236030] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 01:40:40,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [182031818] [2022-07-23 01:40:40,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:40:40,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 01:40:40,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 01:40:40,643 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 01:40:40,644 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-23 01:40:41,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:41,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 2426 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-23 01:40:41,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:40:41,792 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-07-23 01:40:41,793 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:40:41,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [182031818] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:40:41,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 01:40:41,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 17 [2022-07-23 01:40:41,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034575984] [2022-07-23 01:40:41,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:40:41,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 01:40:41,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 01:40:41,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 01:40:41,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2022-07-23 01:40:41,796 INFO L87 Difference]: Start difference. First operand 98383 states and 147233 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-23 01:40:48,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:40:48,502 INFO L93 Difference]: Finished difference Result 245913 states and 368297 transitions. [2022-07-23 01:40:48,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-23 01:40:48,503 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) Word has length 192 [2022-07-23 01:40:48,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:40:50,139 INFO L225 Difference]: With dead ends: 245913 [2022-07-23 01:40:50,139 INFO L226 Difference]: Without dead ends: 147562 [2022-07-23 01:40:50,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=83, Invalid=469, Unknown=0, NotChecked=0, Total=552 [2022-07-23 01:40:50,929 INFO L413 NwaCegarLoop]: 3865 mSDtfsCounter, 2725 mSDsluCounter, 18132 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2729 SdHoareTripleChecker+Valid, 21997 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 01:40:50,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2729 Valid, 21997 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 01:40:51,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147562 states. [2022-07-23 01:40:57,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147562 to 147267. [2022-07-23 01:40:57,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147267 states, 95845 states have (on average 1.3053784756638322) internal successors, (125114), 99301 states have internal predecessors, (125114), 44841 states have call successors, (44841), 6085 states have call predecessors, (44841), 6580 states have return successors, (50800), 43868 states have call predecessors, (50800), 44840 states have call successors, (50800) [2022-07-23 01:40:58,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147267 states to 147267 states and 220755 transitions. [2022-07-23 01:40:58,999 INFO L78 Accepts]: Start accepts. Automaton has 147267 states and 220755 transitions. Word has length 192 [2022-07-23 01:40:58,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:40:59,000 INFO L495 AbstractCegarLoop]: Abstraction has 147267 states and 220755 transitions. [2022-07-23 01:40:59,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-23 01:40:59,000 INFO L276 IsEmpty]: Start isEmpty. Operand 147267 states and 220755 transitions. [2022-07-23 01:40:59,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-07-23 01:40:59,029 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:40:59,029 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 01:40:59,062 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-23 01:40:59,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 01:40:59,244 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:40:59,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:40:59,244 INFO L85 PathProgramCache]: Analyzing trace with hash 491114053, now seen corresponding path program 1 times [2022-07-23 01:40:59,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 01:40:59,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476470807] [2022-07-23 01:40:59,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:40:59,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 01:40:59,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:59,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 01:40:59,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:59,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:40:59,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:59,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:40:59,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:59,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 01:40:59,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:59,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:40:59,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:59,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:40:59,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:59,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 01:40:59,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:59,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:40:59,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:59,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:40:59,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:59,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-23 01:40:59,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:59,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:40:59,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:59,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-23 01:40:59,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:59,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:40:59,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:59,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-23 01:40:59,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:59,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-23 01:40:59,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:59,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:40:59,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:59,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-23 01:40:59,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:59,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-23 01:40:59,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:59,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-23 01:40:59,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:59,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-23 01:40:59,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:59,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-23 01:40:59,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:59,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-23 01:40:59,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:59,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:40:59,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:59,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-23 01:40:59,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:59,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-23 01:40:59,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:59,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:40:59,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:59,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-23 01:40:59,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:59,710 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-07-23 01:40:59,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 01:40:59,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476470807] [2022-07-23 01:40:59,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476470807] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 01:40:59,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1241698884] [2022-07-23 01:40:59,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:40:59,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 01:40:59,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 01:40:59,713 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 01:40:59,716 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-23 01:41:00,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:41:00,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 2428 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-23 01:41:00,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:41:00,605 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-07-23 01:41:00,606 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:41:00,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1241698884] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:41:00,606 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 01:41:00,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 18 [2022-07-23 01:41:00,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340294233] [2022-07-23 01:41:00,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:41:00,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 01:41:00,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 01:41:00,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 01:41:00,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2022-07-23 01:41:00,608 INFO L87 Difference]: Start difference. First operand 147267 states and 220755 transitions. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21)