./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 e19ca921 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-dev-e19ca92 [2021-12-22 15:14:07,403 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 15:14:07,405 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 15:14:07,433 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 15:14:07,434 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 15:14:07,435 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 15:14:07,436 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 15:14:07,438 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 15:14:07,439 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 15:14:07,440 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 15:14:07,441 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 15:14:07,442 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 15:14:07,442 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 15:14:07,443 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 15:14:07,444 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 15:14:07,445 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 15:14:07,446 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 15:14:07,446 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 15:14:07,448 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 15:14:07,449 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 15:14:07,451 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 15:14:07,452 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 15:14:07,453 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 15:14:07,454 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 15:14:07,456 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 15:14:07,457 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 15:14:07,457 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 15:14:07,458 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 15:14:07,458 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 15:14:07,459 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 15:14:07,459 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 15:14:07,460 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 15:14:07,461 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 15:14:07,462 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 15:14:07,462 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 15:14:07,463 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 15:14:07,463 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 15:14:07,464 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 15:14:07,464 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 15:14:07,465 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 15:14:07,466 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 15:14:07,466 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-22 15:14:07,485 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 15:14:07,486 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 15:14:07,486 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 15:14:07,486 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 15:14:07,487 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 15:14:07,487 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 15:14:07,488 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 15:14:07,488 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 15:14:07,488 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 15:14:07,489 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 15:14:07,489 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 15:14:07,489 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 15:14:07,489 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 15:14:07,489 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 15:14:07,489 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 15:14:07,490 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 15:14:07,490 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 15:14:07,490 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 15:14:07,490 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 15:14:07,491 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 15:14:07,491 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 15:14:07,491 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 15:14:07,491 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 15:14:07,491 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 15:14:07,492 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 15:14:07,492 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 15:14:07,492 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 15:14:07,492 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 15:14:07,492 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 15:14:07,493 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 15:14:07,493 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 15:14:07,493 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 66b2f104726c03e3846e38f6b09c6a45d6c8d058156e96895db9342600740310 [2021-12-22 15:14:07,683 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 15:14:07,706 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 15:14:07,709 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 15:14:07,711 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 15:14:07,712 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 15:14:07,713 INFO L432 ainManager$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 [2021-12-22 15:14:07,758 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc49a5213/39cfb42afbab4793a36ed02c1ebe43ec/FLAGf964dc8a2 [2021-12-22 15:14:08,467 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 15:14:08,468 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 [2021-12-22 15:14:08,515 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc49a5213/39cfb42afbab4793a36ed02c1ebe43ec/FLAGf964dc8a2 [2021-12-22 15:14:08,746 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc49a5213/39cfb42afbab4793a36ed02c1ebe43ec [2021-12-22 15:14:08,749 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 15:14:08,750 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 15:14:08,751 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 15:14:08,751 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 15:14:08,755 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 15:14:08,756 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:14:08" (1/1) ... [2021-12-22 15:14:08,757 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c3e319a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:14:08, skipping insertion in model container [2021-12-22 15:14:08,757 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:14:08" (1/1) ... [2021-12-22 15:14:08,763 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 15:14:08,871 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 15:14:10,323 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] [2021-12-22 15:14:10,372 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 15:14:10,429 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 15:14:10,869 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] [2021-12-22 15:14:10,875 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 15:14:10,967 INFO L208 MainTranslator]: Completed translation [2021-12-22 15:14:10,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:14:10 WrapperNode [2021-12-22 15:14:10,968 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 15:14:10,970 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 15:14:10,970 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 15:14:10,970 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 15:14:10,976 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:14:10" (1/1) ... [2021-12-22 15:14:11,069 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:14:10" (1/1) ... [2021-12-22 15:14:11,220 INFO L137 Inliner]: procedures = 274, calls = 2121, calls flagged for inlining = 123, calls inlined = 120, statements flattened = 4342 [2021-12-22 15:14:11,220 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 15:14:11,221 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 15:14:11,221 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 15:14:11,221 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 15:14:11,229 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:14:10" (1/1) ... [2021-12-22 15:14:11,229 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:14:10" (1/1) ... [2021-12-22 15:14:11,277 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:14:10" (1/1) ... [2021-12-22 15:14:11,277 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:14:10" (1/1) ... [2021-12-22 15:14:11,383 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:14:10" (1/1) ... [2021-12-22 15:14:11,406 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:14:10" (1/1) ... [2021-12-22 15:14:11,483 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:14:10" (1/1) ... [2021-12-22 15:14:11,504 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 15:14:11,505 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 15:14:11,505 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 15:14:11,505 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 15:14:11,506 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:14:10" (1/1) ... [2021-12-22 15:14:11,516 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 15:14:11,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 15:14:11,537 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-22 15:14:11,557 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-22 15:14:11,573 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_running_reset [2021-12-22 15:14:11,574 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_running_reset [2021-12-22 15:14:11,574 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_open [2021-12-22 15:14:11,574 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_open [2021-12-22 15:14:11,574 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-22 15:14:11,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-22 15:14:11,575 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-22 15:14:11,575 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-22 15:14:11,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-22 15:14:11,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-22 15:14:11,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-22 15:14:11,575 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-22 15:14:11,576 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_dec_reset [2021-12-22 15:14:11,576 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_dec_reset [2021-12-22 15:14:11,576 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_get_link_status [2021-12-22 15:14:11,576 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_get_link_status [2021-12-22 15:14:11,576 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-22 15:14:11,576 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-22 15:14:11,576 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-22 15:14:11,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-22 15:14:11,577 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-22 15:14:11,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-22 15:14:11,577 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_set_circuit_type [2021-12-22 15:14:11,577 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_set_circuit_type [2021-12-22 15:14:11,577 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_gpio_mkinput [2021-12-22 15:14:11,577 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_gpio_mkinput [2021-12-22 15:14:11,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-22 15:14:11,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-22 15:14:11,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-22 15:14:11,578 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-22 15:14:11,578 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-22 15:14:11,578 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-22 15:14:11,578 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_100ft [2021-12-22 15:14:11,579 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_100ft [2021-12-22 15:14:11,579 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-22 15:14:11,579 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-22 15:14:11,579 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-12-22 15:14:11,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-12-22 15:14:11,579 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_scram [2021-12-22 15:14:11,580 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_scram [2021-12-22 15:14:11,580 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_change_mtu [2021-12-22 15:14:11,580 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_change_mtu [2021-12-22 15:14:11,580 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_close [2021-12-22 15:14:11,580 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_close [2021-12-22 15:14:11,580 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_gpio_mkoutput [2021-12-22 15:14:11,580 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_gpio_mkoutput [2021-12-22 15:14:11,581 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_reset [2021-12-22 15:14:11,581 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_reset [2021-12-22 15:14:11,581 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-22 15:14:11,581 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-22 15:14:11,581 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_get_stats [2021-12-22 15:14:11,581 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_get_stats [2021-12-22 15:14:11,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-22 15:14:11,582 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_sc [2021-12-22 15:14:11,582 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_sc [2021-12-22 15:14:11,582 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_driver_timeout [2021-12-22 15:14:11,582 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_driver_timeout [2021-12-22 15:14:11,582 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_netif [2021-12-22 15:14:11,582 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_netif [2021-12-22 15:14:11,582 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-22 15:14:11,583 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-12-22 15:14:11,583 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-12-22 15:14:11,583 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-12-22 15:14:11,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-12-22 15:14:11,583 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-22 15:14:11,583 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-22 15:14:11,584 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_trace [2021-12-22 15:14:11,584 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_trace [2021-12-22 15:14:11,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 15:14:11,584 INFO L130 BoogieDeclarations]: Found specification of procedure write_av9110 [2021-12-22 15:14:11,584 INFO L138 BoogieDeclarations]: Found implementation of procedure write_av9110 [2021-12-22 15:14:11,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-22 15:14:11,584 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-12-22 15:14:11,585 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-12-22 15:14:11,585 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2021-12-22 15:14:11,585 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2021-12-22 15:14:11,585 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-22 15:14:11,585 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-22 15:14:11,585 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_type [2021-12-22 15:14:11,585 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_type [2021-12-22 15:14:11,586 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-22 15:14:11,586 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-22 15:14:11,586 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_remove_one [2021-12-22 15:14:11,586 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_remove_one [2021-12-22 15:14:11,586 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2021-12-22 15:14:11,586 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2021-12-22 15:14:11,587 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_write [2021-12-22 15:14:11,587 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_write [2021-12-22 15:14:11,587 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_close [2021-12-22 15:14:11,587 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_close [2021-12-22 15:14:11,587 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-22 15:14:11,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-22 15:14:11,587 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_led_off [2021-12-22 15:14:11,588 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_led_off [2021-12-22 15:14:11,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-22 15:14:11,588 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-22 15:14:11,588 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-22 15:14:11,588 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2021-12-22 15:14:11,588 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2021-12-22 15:14:11,588 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-22 15:14:11,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-22 15:14:11,589 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-22 15:14:11,589 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-22 15:14:11,589 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_softreset [2021-12-22 15:14:11,589 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_softreset [2021-12-22 15:14:11,589 INFO L130 BoogieDeclarations]: Found specification of procedure write_av9110_bit [2021-12-22 15:14:11,589 INFO L138 BoogieDeclarations]: Found implementation of procedure write_av9110_bit [2021-12-22 15:14:11,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 15:14:11,590 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-22 15:14:11,590 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-22 15:14:11,590 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-12-22 15:14:11,590 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-12-22 15:14:11,590 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2021-12-22 15:14:11,590 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2021-12-22 15:14:11,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-22 15:14:11,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-22 15:14:11,591 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_mii_writereg [2021-12-22 15:14:11,591 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_mii_writereg [2021-12-22 15:14:11,591 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ioctl [2021-12-22 15:14:11,591 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ioctl [2021-12-22 15:14:11,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-22 15:14:11,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-22 15:14:11,592 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_attach [2021-12-22 15:14:11,592 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_attach [2021-12-22 15:14:11,592 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_phys [2021-12-22 15:14:11,592 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_phys [2021-12-22 15:14:11,592 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_status [2021-12-22 15:14:11,593 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_status [2021-12-22 15:14:11,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-22 15:14:11,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-22 15:14:11,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-22 15:14:11,593 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-12-22 15:14:11,593 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-12-22 15:14:11,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 15:14:11,594 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-22 15:14:11,594 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-22 15:14:11,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-22 15:14:11,594 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_mii_readreg [2021-12-22 15:14:11,594 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_mii_readreg [2021-12-22 15:14:11,594 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-12-22 15:14:11,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-12-22 15:14:11,595 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2021-12-22 15:14:11,595 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2021-12-22 15:14:11,595 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-22 15:14:11,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-22 15:14:11,595 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-22 15:14:11,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-22 15:14:11,595 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_open [2021-12-22 15:14:11,596 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_open [2021-12-22 15:14:11,596 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-12-22 15:14:11,596 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-12-22 15:14:11,596 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_led_on [2021-12-22 15:14:11,596 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_led_on [2021-12-22 15:14:11,596 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2021-12-22 15:14:11,596 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2021-12-22 15:14:11,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 15:14:11,597 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_set_protocol [2021-12-22 15:14:11,597 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_set_protocol [2021-12-22 15:14:11,597 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-12-22 15:14:11,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-12-22 15:14:11,597 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2021-12-22 15:14:11,597 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2021-12-22 15:14:11,597 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2021-12-22 15:14:11,598 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2021-12-22 15:14:11,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 15:14:11,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 15:14:11,598 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_relax [2021-12-22 15:14:11,598 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_relax [2021-12-22 15:14:12,172 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 15:14:12,175 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 15:14:13,159 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-22 15:14:18,027 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 15:14:18,042 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 15:14:18,042 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-22 15:14:18,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:14:18 BoogieIcfgContainer [2021-12-22 15:14:18,046 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 15:14:18,048 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 15:14:18,048 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 15:14:18,051 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 15:14:18,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 03:14:08" (1/3) ... [2021-12-22 15:14:18,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e57642f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:14:18, skipping insertion in model container [2021-12-22 15:14:18,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:14:10" (2/3) ... [2021-12-22 15:14:18,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e57642f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:14:18, skipping insertion in model container [2021-12-22 15:14:18,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:14:18" (3/3) ... [2021-12-22 15:14:18,054 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--wan--lmc--lmc.ko-entry_point.cil.out.i [2021-12-22 15:14:18,059 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 15:14:18,059 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-22 15:14:18,111 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 15:14:18,117 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-22 15:14:18,118 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-22 15:14:18,181 INFO L276 IsEmpty]: Start isEmpty. Operand has 1794 states, 1154 states have (on average 1.3223570190641247) internal successors, (1526), 1202 states have internal predecessors, (1526), 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) [2021-12-22 15:14:18,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-12-22 15:14:18,191 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:14:18,191 INFO L514 BasicCegarLoop]: 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] [2021-12-22 15:14:18,192 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:14:18,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:14:18,197 INFO L85 PathProgramCache]: Analyzing trace with hash 2114030879, now seen corresponding path program 1 times [2021-12-22 15:14:18,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:14:18,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691838437] [2021-12-22 15:14:18,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:14:18,208 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:14:18,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:18,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:14:18,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:18,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:14:18,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:18,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:14:18,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:18,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 15:14:18,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:18,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:14:18,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:18,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:14:18,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:18,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 15:14:18,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:18,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:14:18,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:18,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:14:18,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:18,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-22 15:14:18,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:18,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:14:18,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:18,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-22 15:14:18,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:19,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:14:19,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:19,024 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-12-22 15:14:19,024 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:14:19,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691838437] [2021-12-22 15:14:19,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691838437] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:14:19,025 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:14:19,026 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 15:14:19,028 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404169971] [2021-12-22 15:14:19,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:14:19,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 15:14:19,034 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:14:19,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 15:14:19,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:14:19,072 INFO L87 Difference]: Start difference. First operand has 1794 states, 1154 states have (on average 1.3223570190641247) internal successors, (1526), 1202 states have internal predecessors, (1526), 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) [2021-12-22 15:14:23,083 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 [] [2021-12-22 15:14:25,106 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 [] [2021-12-22 15:14:30,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:14:30,458 INFO L93 Difference]: Finished difference Result 3793 states and 5763 transitions. [2021-12-22 15:14:30,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-22 15:14:30,461 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 [2021-12-22 15:14:30,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:14:30,502 INFO L225 Difference]: With dead ends: 3793 [2021-12-22 15:14:30,502 INFO L226 Difference]: Without dead ends: 1987 [2021-12-22 15:14:30,529 INFO L932 BasicCegarLoop]: 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 [2021-12-22 15:14:30,534 INFO L933 BasicCegarLoop]: 2365 mSDtfsCounter, 1193 mSDsluCounter, 2272 mSDsCounter, 0 mSdLazyCounter, 2872 mSolverCounterSat, 1518 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1234 SdHoareTripleChecker+Valid, 4637 SdHoareTripleChecker+Invalid, 4392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1518 IncrementalHoareTripleChecker+Valid, 2872 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2021-12-22 15:14:30,536 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1234 Valid, 4637 Invalid, 4392 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1518 Valid, 2872 Invalid, 2 Unknown, 0 Unchecked, 11.0s Time] [2021-12-22 15:14:30,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1987 states. [2021-12-22 15:14:30,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1987 to 1777. [2021-12-22 15:14:30,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1777 states, 1145 states have (on average 1.3161572052401747) internal successors, (1507), 1185 states have internal predecessors, (1507), 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) [2021-12-22 15:14:30,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1777 states to 1777 states and 2620 transitions. [2021-12-22 15:14:30,783 INFO L78 Accepts]: Start accepts. Automaton has 1777 states and 2620 transitions. Word has length 92 [2021-12-22 15:14:30,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:14:30,784 INFO L470 AbstractCegarLoop]: Abstraction has 1777 states and 2620 transitions. [2021-12-22 15:14:30,784 INFO L471 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) [2021-12-22 15:14:30,784 INFO L276 IsEmpty]: Start isEmpty. Operand 1777 states and 2620 transitions. [2021-12-22 15:14:30,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-12-22 15:14:30,791 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:14:30,791 INFO L514 BasicCegarLoop]: 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] [2021-12-22 15:14:30,791 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 15:14:30,792 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:14:30,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:14:30,792 INFO L85 PathProgramCache]: Analyzing trace with hash -645505755, now seen corresponding path program 1 times [2021-12-22 15:14:30,792 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:14:30,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218899722] [2021-12-22 15:14:30,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:14:30,793 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:14:30,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:30,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:14:30,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:31,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:14:31,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:31,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:14:31,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:31,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 15:14:31,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:31,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:14:31,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:31,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:14:31,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:31,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 15:14:31,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:31,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:14:31,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:31,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:14:31,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:31,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-22 15:14:31,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:31,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:14:31,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:31,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-22 15:14:31,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:31,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:14:31,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:31,152 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-12-22 15:14:31,153 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:14:31,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218899722] [2021-12-22 15:14:31,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218899722] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:14:31,153 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:14:31,154 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 15:14:31,154 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950494077] [2021-12-22 15:14:31,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:14:31,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 15:14:31,156 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:14:31,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 15:14:31,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-22 15:14:31,157 INFO L87 Difference]: Start difference. First operand 1777 states and 2620 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) [2021-12-22 15:14:35,675 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:14:42,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:14:42,153 INFO L93 Difference]: Finished difference Result 5629 states and 8535 transitions. [2021-12-22 15:14:42,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-22 15:14:42,154 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 [2021-12-22 15:14:42,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:14:42,191 INFO L225 Difference]: With dead ends: 5629 [2021-12-22 15:14:42,192 INFO L226 Difference]: Without dead ends: 3870 [2021-12-22 15:14:42,207 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-22 15:14:42,209 INFO L933 BasicCegarLoop]: 3063 mSDtfsCounter, 4266 mSDsluCounter, 4028 mSDsCounter, 0 mSdLazyCounter, 3855 mSolverCounterSat, 3209 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4590 SdHoareTripleChecker+Valid, 7091 SdHoareTripleChecker+Invalid, 7064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3209 IncrementalHoareTripleChecker+Valid, 3855 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2021-12-22 15:14:42,209 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4590 Valid, 7091 Invalid, 7064 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3209 Valid, 3855 Invalid, 0 Unknown, 0 Unchecked, 10.5s Time] [2021-12-22 15:14:42,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3870 states. [2021-12-22 15:14:42,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3870 to 3449. [2021-12-22 15:14:42,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3449 states, 2214 states have (on average 1.3175248419150858) internal successors, (2917), 2292 states have internal predecessors, (2917), 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) [2021-12-22 15:14:42,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3449 states to 3449 states and 5090 transitions. [2021-12-22 15:14:42,394 INFO L78 Accepts]: Start accepts. Automaton has 3449 states and 5090 transitions. Word has length 92 [2021-12-22 15:14:42,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:14:42,396 INFO L470 AbstractCegarLoop]: Abstraction has 3449 states and 5090 transitions. [2021-12-22 15:14:42,396 INFO L471 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) [2021-12-22 15:14:42,397 INFO L276 IsEmpty]: Start isEmpty. Operand 3449 states and 5090 transitions. [2021-12-22 15:14:42,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-12-22 15:14:42,406 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:14:42,407 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-12-22 15:14:42,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-22 15:14:42,407 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:14:42,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:14:42,408 INFO L85 PathProgramCache]: Analyzing trace with hash -600008244, now seen corresponding path program 1 times [2021-12-22 15:14:42,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:14:42,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626092743] [2021-12-22 15:14:42,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:14:42,408 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:14:42,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:42,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:14:42,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:42,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:14:42,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:42,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:14:42,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:42,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 15:14:42,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:42,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:14:42,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:42,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:14:42,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:42,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 15:14:42,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:42,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:14:42,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:42,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:14:42,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:42,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-22 15:14:42,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:42,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:14:42,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:42,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-22 15:14:42,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:42,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:14:42,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:42,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 15:14:42,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:42,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:14:42,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:42,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:14:42,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:42,947 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2021-12-22 15:14:42,947 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:14:42,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626092743] [2021-12-22 15:14:42,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626092743] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:14:42,948 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:14:42,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 15:14:42,949 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557441887] [2021-12-22 15:14:42,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:14:42,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 15:14:42,952 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:14:42,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 15:14:42,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-22 15:14:42,954 INFO L87 Difference]: Start difference. First operand 3449 states and 5090 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) [2021-12-22 15:14:50,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:14:50,632 INFO L93 Difference]: Finished difference Result 6414 states and 9853 transitions. [2021-12-22 15:14:50,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-22 15:14:50,633 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 [2021-12-22 15:14:50,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:14:50,718 INFO L225 Difference]: With dead ends: 6414 [2021-12-22 15:14:50,719 INFO L226 Difference]: Without dead ends: 6411 [2021-12-22 15:14:50,729 INFO L932 BasicCegarLoop]: 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 [2021-12-22 15:14:50,730 INFO L933 BasicCegarLoop]: 3462 mSDtfsCounter, 4111 mSDsluCounter, 2782 mSDsCounter, 0 mSdLazyCounter, 2583 mSolverCounterSat, 3483 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4351 SdHoareTripleChecker+Valid, 6244 SdHoareTripleChecker+Invalid, 6066 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3483 IncrementalHoareTripleChecker+Valid, 2583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2021-12-22 15:14:50,731 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4351 Valid, 6244 Invalid, 6066 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3483 Valid, 2583 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2021-12-22 15:14:50,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6411 states. [2021-12-22 15:14:51,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6411 to 5756. [2021-12-22 15:14:51,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5756 states, 3679 states have (on average 1.3101386246262572) internal successors, (4820), 3821 states have internal predecessors, (4820), 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) [2021-12-22 15:14:51,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5756 states to 5756 states and 8536 transitions. [2021-12-22 15:14:51,086 INFO L78 Accepts]: Start accepts. Automaton has 5756 states and 8536 transitions. Word has length 122 [2021-12-22 15:14:51,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:14:51,088 INFO L470 AbstractCegarLoop]: Abstraction has 5756 states and 8536 transitions. [2021-12-22 15:14:51,089 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 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) [2021-12-22 15:14:51,089 INFO L276 IsEmpty]: Start isEmpty. Operand 5756 states and 8536 transitions. [2021-12-22 15:14:51,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2021-12-22 15:14:51,110 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:14:51,110 INFO L514 BasicCegarLoop]: 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] [2021-12-22 15:14:51,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-22 15:14:51,111 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:14:51,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:14:51,114 INFO L85 PathProgramCache]: Analyzing trace with hash -377035489, now seen corresponding path program 1 times [2021-12-22 15:14:51,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:14:51,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640921025] [2021-12-22 15:14:51,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:14:51,115 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:14:51,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:51,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:14:51,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:51,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:14:51,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:51,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:14:51,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:51,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 15:14:51,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:51,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:14:51,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:51,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:14:51,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:51,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 15:14:51,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:51,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:14:51,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:51,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:14:51,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:51,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-22 15:14:51,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:51,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:14:51,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:51,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-22 15:14:51,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:51,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:14:51,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:51,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-22 15:14:51,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:51,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:14:51,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:51,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-22 15:14:51,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:51,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-22 15:14:51,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:51,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-22 15:14:51,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:51,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-22 15:14:51,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:51,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-22 15:14:51,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:51,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-22 15:14:51,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:51,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:14:51,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:51,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-22 15:14:51,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:51,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-22 15:14:51,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:51,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:14:51,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:51,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-22 15:14:51,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:51,741 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2021-12-22 15:14:51,741 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:14:51,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640921025] [2021-12-22 15:14:51,741 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640921025] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:14:51,742 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:14:51,742 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-22 15:14:51,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542944333] [2021-12-22 15:14:51,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:14:51,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-22 15:14:51,743 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:14:51,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-22 15:14:51,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-22 15:14:51,745 INFO L87 Difference]: Start difference. First operand 5756 states and 8536 transitions. Second operand has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 4 states have internal predecessors, (84), 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) [2021-12-22 15:14:55,441 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:14:57,462 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []