./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--net--ethernet--emulex--benet--be2net.ko-ldv_main2.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 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-consumption/linux-3.8-rc1-32_7a-drivers--net--ethernet--emulex--benet--be2net.ko-ldv_main2.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 5eade98d3572945dc3f3afa13df28f18738479fb416def85e3793aeb4de65612 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-18 03:29:40,282 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-18 03:29:40,284 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-18 03:29:40,325 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-18 03:29:40,325 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-18 03:29:40,328 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-18 03:29:40,329 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-18 03:29:40,333 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-18 03:29:40,335 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-18 03:29:40,337 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-18 03:29:40,338 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-18 03:29:40,339 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-18 03:29:40,339 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-18 03:29:40,341 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-18 03:29:40,342 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-18 03:29:40,345 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-18 03:29:40,346 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-18 03:29:40,347 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-18 03:29:40,349 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-18 03:29:40,351 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-18 03:29:40,352 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-18 03:29:40,353 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-18 03:29:40,354 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-18 03:29:40,355 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-18 03:29:40,371 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-18 03:29:40,371 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-18 03:29:40,371 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-18 03:29:40,372 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-18 03:29:40,372 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-18 03:29:40,373 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-18 03:29:40,373 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-18 03:29:40,374 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-18 03:29:40,375 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-18 03:29:40,376 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-18 03:29:40,377 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-18 03:29:40,378 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-18 03:29:40,378 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-18 03:29:40,379 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-18 03:29:40,379 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-18 03:29:40,380 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-18 03:29:40,380 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-18 03:29:40,381 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-18 03:29:40,413 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-18 03:29:40,413 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-18 03:29:40,414 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-18 03:29:40,414 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-18 03:29:40,414 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-18 03:29:40,415 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-18 03:29:40,415 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-18 03:29:40,415 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-18 03:29:40,415 INFO L138 SettingsManager]: * Use SBE=true [2021-12-18 03:29:40,416 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-18 03:29:40,416 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-18 03:29:40,416 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-18 03:29:40,417 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-18 03:29:40,417 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-18 03:29:40,417 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-18 03:29:40,417 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-18 03:29:40,417 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-18 03:29:40,417 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-18 03:29:40,418 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-18 03:29:40,418 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-18 03:29:40,418 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-18 03:29:40,418 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 03:29:40,418 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-18 03:29:40,418 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-18 03:29:40,418 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-18 03:29:40,419 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-18 03:29:40,419 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-18 03:29:40,419 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-18 03:29:40,419 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-18 03:29:40,419 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-18 03:29:40,419 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-18 03:29:40,420 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5eade98d3572945dc3f3afa13df28f18738479fb416def85e3793aeb4de65612 [2021-12-18 03:29:40,613 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-18 03:29:40,631 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-18 03:29:40,633 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-18 03:29:40,634 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-18 03:29:40,634 INFO L275 PluginConnector]: CDTParser initialized [2021-12-18 03:29:40,635 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--net--ethernet--emulex--benet--be2net.ko-ldv_main2.cil.out.i [2021-12-18 03:29:40,682 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/658832ee2/9fc82f55c8d0447ca307c12c8cecb79b/FLAG6a259a35f [2021-12-18 03:29:41,476 INFO L306 CDTParser]: Found 1 translation units. [2021-12-18 03:29:41,477 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--net--ethernet--emulex--benet--be2net.ko-ldv_main2.cil.out.i [2021-12-18 03:29:41,524 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/658832ee2/9fc82f55c8d0447ca307c12c8cecb79b/FLAG6a259a35f [2021-12-18 03:29:41,712 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/658832ee2/9fc82f55c8d0447ca307c12c8cecb79b [2021-12-18 03:29:41,714 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-18 03:29:41,716 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-18 03:29:41,718 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-18 03:29:41,718 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-18 03:29:41,721 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-18 03:29:41,721 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 03:29:41" (1/1) ... [2021-12-18 03:29:41,722 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a08338b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:29:41, skipping insertion in model container [2021-12-18 03:29:41,722 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 03:29:41" (1/1) ... [2021-12-18 03:29:41,726 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-18 03:29:41,889 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-18 03:29:47,562 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-consumption/linux-3.8-rc1-32_7a-drivers--net--ethernet--emulex--benet--be2net.ko-ldv_main2.cil.out.i[615856,615869] [2021-12-18 03:29:47,750 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 03:29:47,788 INFO L203 MainTranslator]: Completed pre-run [2021-12-18 03:29:48,247 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-consumption/linux-3.8-rc1-32_7a-drivers--net--ethernet--emulex--benet--be2net.ko-ldv_main2.cil.out.i[615856,615869] [2021-12-18 03:29:48,261 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 03:29:48,527 INFO L208 MainTranslator]: Completed translation [2021-12-18 03:29:48,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:29:48 WrapperNode [2021-12-18 03:29:48,529 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-18 03:29:48,530 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-18 03:29:48,530 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-18 03:29:48,530 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-18 03:29:48,535 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:29:48" (1/1) ... [2021-12-18 03:29:48,678 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:29:48" (1/1) ... [2021-12-18 03:29:48,852 INFO L137 Inliner]: procedures = 720, calls = 7789, calls flagged for inlining = 365, calls inlined = 99, statements flattened = 7352 [2021-12-18 03:29:48,853 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-18 03:29:48,854 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-18 03:29:48,854 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-18 03:29:48,854 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-18 03:29:48,861 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:29:48" (1/1) ... [2021-12-18 03:29:48,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:29:48" (1/1) ... [2021-12-18 03:29:48,894 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:29:48" (1/1) ... [2021-12-18 03:29:48,894 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:29:48" (1/1) ... [2021-12-18 03:29:48,985 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:29:48" (1/1) ... [2021-12-18 03:29:49,007 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:29:48" (1/1) ... [2021-12-18 03:29:49,035 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:29:48" (1/1) ... [2021-12-18 03:29:49,073 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-18 03:29:49,074 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-18 03:29:49,074 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-18 03:29:49,074 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-18 03:29:49,075 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:29:48" (1/1) ... [2021-12-18 03:29:49,080 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 03:29:49,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 03:29:49,106 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) [2021-12-18 03:29:49,124 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 [2021-12-18 03:29:49,138 INFO L130 BoogieDeclarations]: Found specification of procedure be_mcc_compl_use [2021-12-18 03:29:49,138 INFO L138 BoogieDeclarations]: Found implementation of procedure be_mcc_compl_use [2021-12-18 03:29:49,138 INFO L130 BoogieDeclarations]: Found specification of procedure be_mbox_notify_wait [2021-12-18 03:29:49,138 INFO L138 BoogieDeclarations]: Found implementation of procedure be_mbox_notify_wait [2021-12-18 03:29:49,139 INFO L130 BoogieDeclarations]: Found specification of procedure be_is_wol_excluded [2021-12-18 03:29:49,139 INFO L138 BoogieDeclarations]: Found implementation of procedure be_is_wol_excluded [2021-12-18 03:29:49,139 INFO L130 BoogieDeclarations]: Found specification of procedure be_mcc_compl_is_new [2021-12-18 03:29:49,139 INFO L138 BoogieDeclarations]: Found implementation of procedure be_mcc_compl_is_new [2021-12-18 03:29:49,139 INFO L130 BoogieDeclarations]: Found specification of procedure fls [2021-12-18 03:29:49,139 INFO L138 BoogieDeclarations]: Found implementation of procedure fls [2021-12-18 03:29:49,139 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-12-18 03:29:49,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-12-18 03:29:49,139 INFO L130 BoogieDeclarations]: Found specification of procedure ssleep [2021-12-18 03:29:49,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ssleep [2021-12-18 03:29:49,140 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-12-18 03:29:49,140 INFO L130 BoogieDeclarations]: Found specification of procedure swap_dws [2021-12-18 03:29:49,140 INFO L138 BoogieDeclarations]: Found implementation of procedure swap_dws [2021-12-18 03:29:49,140 INFO L130 BoogieDeclarations]: Found specification of procedure lancer_cmd_write_object [2021-12-18 03:29:49,140 INFO L138 BoogieDeclarations]: Found implementation of procedure lancer_cmd_write_object [2021-12-18 03:29:49,140 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-18 03:29:49,141 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-18 03:29:49,141 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-12-18 03:29:49,141 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-12-18 03:29:49,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-18 03:29:49,141 INFO L130 BoogieDeclarations]: Found specification of procedure be_flash_redboot [2021-12-18 03:29:49,141 INFO L138 BoogieDeclarations]: Found implementation of procedure be_flash_redboot [2021-12-18 03:29:49,141 INFO L130 BoogieDeclarations]: Found specification of procedure lancer_cmd_read_file [2021-12-18 03:29:49,141 INFO L138 BoogieDeclarations]: Found implementation of procedure lancer_cmd_read_file [2021-12-18 03:29:49,141 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-18 03:29:49,142 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-18 03:29:49,142 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2021-12-18 03:29:49,142 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2021-12-18 03:29:49,142 INFO L130 BoogieDeclarations]: Found specification of procedure be_cq_notify [2021-12-18 03:29:49,142 INFO L138 BoogieDeclarations]: Found implementation of procedure be_cq_notify [2021-12-18 03:29:49,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-18 03:29:49,142 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mbox_lock_of_be_adapter [2021-12-18 03:29:49,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mbox_lock_of_be_adapter [2021-12-18 03:29:49,143 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-18 03:29:49,143 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-18 03:29:49,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-18 03:29:49,143 INFO L130 BoogieDeclarations]: Found specification of procedure be_set_msg_level [2021-12-18 03:29:49,143 INFO L138 BoogieDeclarations]: Found implementation of procedure be_set_msg_level [2021-12-18 03:29:49,143 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2021-12-18 03:29:49,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2021-12-18 03:29:49,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-18 03:29:49,144 INFO L130 BoogieDeclarations]: Found specification of procedure be_loopback_test [2021-12-18 03:29:49,144 INFO L138 BoogieDeclarations]: Found implementation of procedure be_loopback_test [2021-12-18 03:29:49,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-18 03:29:49,144 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-18 03:29:49,144 INFO L130 BoogieDeclarations]: Found specification of procedure wrb_from_mccq [2021-12-18 03:29:49,144 INFO L138 BoogieDeclarations]: Found implementation of procedure wrb_from_mccq [2021-12-18 03:29:49,144 INFO L130 BoogieDeclarations]: Found specification of procedure amap_set [2021-12-18 03:29:49,145 INFO L138 BoogieDeclarations]: Found implementation of procedure amap_set [2021-12-18 03:29:49,145 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-18 03:29:49,145 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-18 03:29:49,145 INFO L130 BoogieDeclarations]: Found specification of procedure be_mcc_compl_process [2021-12-18 03:29:49,145 INFO L138 BoogieDeclarations]: Found implementation of procedure be_mcc_compl_process [2021-12-18 03:29:49,146 INFO L130 BoogieDeclarations]: Found specification of procedure embedded_payload [2021-12-18 03:29:49,146 INFO L138 BoogieDeclarations]: Found implementation of procedure embedded_payload [2021-12-18 03:29:49,146 INFO L130 BoogieDeclarations]: Found specification of procedure be_decode_resp_hdr [2021-12-18 03:29:49,146 INFO L138 BoogieDeclarations]: Found implementation of procedure be_decode_resp_hdr [2021-12-18 03:29:49,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-18 03:29:49,147 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-18 03:29:49,147 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-18 03:29:49,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-18 03:29:49,147 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2021-12-18 03:29:49,147 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2021-12-18 03:29:49,147 INFO L130 BoogieDeclarations]: Found specification of procedure be_cmd_allowed [2021-12-18 03:29:49,147 INFO L138 BoogieDeclarations]: Found implementation of procedure be_cmd_allowed [2021-12-18 03:29:49,147 INFO L130 BoogieDeclarations]: Found specification of procedure be_pause_supported [2021-12-18 03:29:49,147 INFO L138 BoogieDeclarations]: Found implementation of procedure be_pause_supported [2021-12-18 03:29:49,148 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-18 03:29:49,148 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-18 03:29:49,148 INFO L130 BoogieDeclarations]: Found specification of procedure convert_to_et_setting [2021-12-18 03:29:49,148 INFO L138 BoogieDeclarations]: Found implementation of procedure convert_to_et_setting [2021-12-18 03:29:49,148 INFO L130 BoogieDeclarations]: Found specification of procedure queue_head_node [2021-12-18 03:29:49,148 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_head_node [2021-12-18 03:29:49,149 INFO L130 BoogieDeclarations]: Found specification of procedure be_flash_BEx [2021-12-18 03:29:49,149 INFO L138 BoogieDeclarations]: Found implementation of procedure be_flash_BEx [2021-12-18 03:29:49,149 INFO L130 BoogieDeclarations]: Found specification of procedure get_fsec_info [2021-12-18 03:29:49,149 INFO L138 BoogieDeclarations]: Found implementation of procedure get_fsec_info [2021-12-18 03:29:49,149 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_begin_bh [2021-12-18 03:29:49,149 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_begin_bh [2021-12-18 03:29:49,149 INFO L130 BoogieDeclarations]: Found specification of procedure be_error [2021-12-18 03:29:49,149 INFO L138 BoogieDeclarations]: Found implementation of procedure be_error [2021-12-18 03:29:49,149 INFO L130 BoogieDeclarations]: Found specification of procedure lancer_cmd_read_object [2021-12-18 03:29:49,150 INFO L138 BoogieDeclarations]: Found implementation of procedure lancer_cmd_read_object [2021-12-18 03:29:49,150 INFO L130 BoogieDeclarations]: Found specification of procedure queue_tail_node [2021-12-18 03:29:49,150 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_tail_node [2021-12-18 03:29:49,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-18 03:29:49,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-18 03:29:49,150 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2021-12-18 03:29:49,151 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2021-12-18 03:29:49,151 INFO L130 BoogieDeclarations]: Found specification of procedure be_flash [2021-12-18 03:29:49,151 INFO L138 BoogieDeclarations]: Found implementation of procedure be_flash [2021-12-18 03:29:49,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2021-12-18 03:29:49,151 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2021-12-18 03:29:49,151 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-18 03:29:49,152 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-18 03:29:49,152 INFO L130 BoogieDeclarations]: Found specification of procedure check_privilege [2021-12-18 03:29:49,152 INFO L138 BoogieDeclarations]: Found implementation of procedure check_privilege [2021-12-18 03:29:49,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-18 03:29:49,152 INFO L130 BoogieDeclarations]: Found specification of procedure be_mcc_notify_wait [2021-12-18 03:29:49,152 INFO L138 BoogieDeclarations]: Found implementation of procedure be_mcc_notify_wait [2021-12-18 03:29:49,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-18 03:29:49,153 INFO L130 BoogieDeclarations]: Found specification of procedure be_link_status_update [2021-12-18 03:29:49,153 INFO L138 BoogieDeclarations]: Found implementation of procedure be_link_status_update [2021-12-18 03:29:49,153 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_timeout [2021-12-18 03:29:49,153 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_timeout [2021-12-18 03:29:49,153 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-12-18 03:29:49,153 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-12-18 03:29:49,153 INFO L130 BoogieDeclarations]: Found specification of procedure be_cmd_get_fw_ver [2021-12-18 03:29:49,153 INFO L138 BoogieDeclarations]: Found implementation of procedure be_cmd_get_fw_ver [2021-12-18 03:29:49,154 INFO L130 BoogieDeclarations]: Found specification of procedure be_cmd_get_flow_control [2021-12-18 03:29:49,154 INFO L138 BoogieDeclarations]: Found implementation of procedure be_cmd_get_flow_control [2021-12-18 03:29:49,154 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-18 03:29:49,154 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-18 03:29:49,154 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-18 03:29:49,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-18 03:29:49,156 INFO L130 BoogieDeclarations]: Found specification of procedure be_cmd_link_status_query [2021-12-18 03:29:49,156 INFO L138 BoogieDeclarations]: Found implementation of procedure be_cmd_link_status_query [2021-12-18 03:29:49,156 INFO L130 BoogieDeclarations]: Found specification of procedure be_process_mcc [2021-12-18 03:29:49,157 INFO L138 BoogieDeclarations]: Found implementation of procedure be_process_mcc [2021-12-18 03:29:49,157 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-12-18 03:29:49,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-12-18 03:29:49,158 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-12-18 03:29:49,158 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-12-18 03:29:49,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-18 03:29:49,162 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-18 03:29:49,162 INFO L130 BoogieDeclarations]: Found specification of procedure be_cmd_rss_config [2021-12-18 03:29:49,162 INFO L138 BoogieDeclarations]: Found implementation of procedure be_cmd_rss_config [2021-12-18 03:29:49,162 INFO L130 BoogieDeclarations]: Found specification of procedure lancer_cmd_get_file_len [2021-12-18 03:29:49,163 INFO L138 BoogieDeclarations]: Found implementation of procedure lancer_cmd_get_file_len [2021-12-18 03:29:49,163 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-12-18 03:29:49,163 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-12-18 03:29:49,163 INFO L130 BoogieDeclarations]: Found specification of procedure be_multi_rxq [2021-12-18 03:29:49,163 INFO L138 BoogieDeclarations]: Found implementation of procedure be_multi_rxq [2021-12-18 03:29:49,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mbox_lock_of_be_adapter [2021-12-18 03:29:49,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mbox_lock_of_be_adapter [2021-12-18 03:29:49,163 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-18 03:29:49,163 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-18 03:29:49,163 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-18 03:29:49,164 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-18 03:29:49,164 INFO L130 BoogieDeclarations]: Found specification of procedure be_detect_error [2021-12-18 03:29:49,164 INFO L138 BoogieDeclarations]: Found implementation of procedure be_detect_error [2021-12-18 03:29:49,164 INFO L130 BoogieDeclarations]: Found specification of procedure MODULO___0 [2021-12-18 03:29:49,164 INFO L138 BoogieDeclarations]: Found implementation of procedure MODULO___0 [2021-12-18 03:29:49,164 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2021-12-18 03:29:49,164 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2021-12-18 03:29:49,164 INFO L130 BoogieDeclarations]: Found specification of procedure local_bh_disable [2021-12-18 03:29:49,164 INFO L138 BoogieDeclarations]: Found implementation of procedure local_bh_disable [2021-12-18 03:29:49,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-18 03:29:49,164 INFO L130 BoogieDeclarations]: Found specification of procedure index_inc___0 [2021-12-18 03:29:49,165 INFO L138 BoogieDeclarations]: Found implementation of procedure index_inc___0 [2021-12-18 03:29:49,165 INFO L130 BoogieDeclarations]: Found specification of procedure be_mcc_notify [2021-12-18 03:29:49,165 INFO L138 BoogieDeclarations]: Found implementation of procedure be_mcc_notify [2021-12-18 03:29:49,165 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-18 03:29:49,165 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-18 03:29:49,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2021-12-18 03:29:49,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2021-12-18 03:29:49,165 INFO L130 BoogieDeclarations]: Found specification of procedure be_cmd_get_phy_info [2021-12-18 03:29:49,165 INFO L138 BoogieDeclarations]: Found implementation of procedure be_cmd_get_phy_info [2021-12-18 03:29:49,165 INFO L130 BoogieDeclarations]: Found specification of procedure be_wrb_cmd_hdr_prepare [2021-12-18 03:29:49,165 INFO L138 BoogieDeclarations]: Found implementation of procedure be_wrb_cmd_hdr_prepare [2021-12-18 03:29:49,166 INFO L130 BoogieDeclarations]: Found specification of procedure be_cmd_set_loopback [2021-12-18 03:29:49,166 INFO L138 BoogieDeclarations]: Found implementation of procedure be_cmd_set_loopback [2021-12-18 03:29:49,166 INFO L130 BoogieDeclarations]: Found specification of procedure be_hw_error [2021-12-18 03:29:49,166 INFO L138 BoogieDeclarations]: Found implementation of procedure be_hw_error [2021-12-18 03:29:49,166 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-12-18 03:29:49,166 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-12-18 03:29:49,166 INFO L130 BoogieDeclarations]: Found specification of procedure be_mbox_db_ready_wait [2021-12-18 03:29:49,166 INFO L138 BoogieDeclarations]: Found implementation of procedure be_mbox_db_ready_wait [2021-12-18 03:29:49,166 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-18 03:29:49,166 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-18 03:29:49,167 INFO L130 BoogieDeclarations]: Found specification of procedure be_cmd_get_ext_fat_capabilites [2021-12-18 03:29:49,167 INFO L138 BoogieDeclarations]: Found implementation of procedure be_cmd_get_ext_fat_capabilites [2021-12-18 03:29:49,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-18 03:29:49,167 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-18 03:29:49,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-18 03:29:49,167 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_retry_bh [2021-12-18 03:29:49,167 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_retry_bh [2021-12-18 03:29:49,167 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-12-18 03:29:49,167 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-12-18 03:29:49,167 INFO L130 BoogieDeclarations]: Found specification of procedure hw_stats_from_cmd [2021-12-18 03:29:49,167 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_stats_from_cmd [2021-12-18 03:29:49,168 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-12-18 03:29:49,168 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-12-18 03:29:49,168 INFO L130 BoogieDeclarations]: Found specification of procedure wrb_from_mbox [2021-12-18 03:29:49,168 INFO L138 BoogieDeclarations]: Found implementation of procedure wrb_from_mbox [2021-12-18 03:29:49,168 INFO L130 BoogieDeclarations]: Found specification of procedure amap_mask [2021-12-18 03:29:49,168 INFO L138 BoogieDeclarations]: Found implementation of procedure amap_mask [2021-12-18 03:29:49,168 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-12-18 03:29:49,168 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-12-18 03:29:49,168 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-18 03:29:49,168 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-18 03:29:49,169 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2021-12-18 03:29:49,169 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2021-12-18 03:29:49,169 INFO L130 BoogieDeclarations]: Found specification of procedure be_cmd_set_beacon_state [2021-12-18 03:29:49,169 INFO L138 BoogieDeclarations]: Found implementation of procedure be_cmd_set_beacon_state [2021-12-18 03:29:49,169 INFO L130 BoogieDeclarations]: Found specification of procedure be_is_wol_supported [2021-12-18 03:29:49,169 INFO L138 BoogieDeclarations]: Found implementation of procedure be_is_wol_supported [2021-12-18 03:29:49,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-18 03:29:49,169 INFO L130 BoogieDeclarations]: Found specification of procedure local_bh_enable [2021-12-18 03:29:49,169 INFO L138 BoogieDeclarations]: Found implementation of procedure local_bh_enable [2021-12-18 03:29:49,169 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-18 03:29:49,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-18 03:29:49,170 INFO L130 BoogieDeclarations]: Found specification of procedure be_cmd_set_flow_control [2021-12-18 03:29:49,170 INFO L138 BoogieDeclarations]: Found implementation of procedure be_cmd_set_flow_control [2021-12-18 03:29:49,803 INFO L236 CfgBuilder]: Building ICFG [2021-12-18 03:29:49,807 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-18 03:38:31,651 INFO L277 CfgBuilder]: Performing block encoding [2021-12-18 03:38:31,669 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-18 03:38:31,670 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-18 03:38:31,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 03:38:31 BoogieIcfgContainer [2021-12-18 03:38:31,673 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-18 03:38:31,675 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-18 03:38:31,675 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-18 03:38:31,677 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-18 03:38:31,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 03:29:41" (1/3) ... [2021-12-18 03:38:31,677 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4286fe1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 03:38:31, skipping insertion in model container [2021-12-18 03:38:31,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:29:48" (2/3) ... [2021-12-18 03:38:31,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4286fe1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 03:38:31, skipping insertion in model container [2021-12-18 03:38:31,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 03:38:31" (3/3) ... [2021-12-18 03:38:31,679 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.8-rc1-32_7a-drivers--net--ethernet--emulex--benet--be2net.ko-ldv_main2.cil.out.i [2021-12-18 03:38:31,683 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-18 03:38:31,683 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-18 03:38:31,728 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-18 03:38:31,741 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 [2021-12-18 03:38:31,741 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-18 03:38:31,784 INFO L276 IsEmpty]: Start isEmpty. Operand has 1774 states, 1298 states have (on average 1.37904468412943) internal successors, (1790), 1313 states have internal predecessors, (1790), 378 states have call successors, (378), 96 states have call predecessors, (378), 96 states have return successors, (378), 376 states have call predecessors, (378), 378 states have call successors, (378) [2021-12-18 03:38:31,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-12-18 03:38:31,788 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 03:38:31,788 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 03:38:31,789 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 03:38:31,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 03:38:31,793 INFO L85 PathProgramCache]: Analyzing trace with hash 2016699830, now seen corresponding path program 1 times [2021-12-18 03:38:31,799 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 03:38:31,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624689130] [2021-12-18 03:38:31,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 03:38:31,801 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 03:38:32,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:38:32,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 03:38:32,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:38:32,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-18 03:38:32,746 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 03:38:32,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624689130] [2021-12-18 03:38:32,747 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624689130] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 03:38:32,747 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 03:38:32,747 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 03:38:32,748 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972927173] [2021-12-18 03:38:32,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 03:38:32,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 03:38:32,751 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 03:38:32,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 03:38:32,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 03:38:32,778 INFO L87 Difference]: Start difference. First operand has 1774 states, 1298 states have (on average 1.37904468412943) internal successors, (1790), 1313 states have internal predecessors, (1790), 378 states have call successors, (378), 96 states have call predecessors, (378), 96 states have return successors, (378), 376 states have call predecessors, (378), 378 states have call successors, (378) Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-18 03:38:34,911 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:38:37,183 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:38:42,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 03:38:42,528 INFO L93 Difference]: Finished difference Result 3621 states and 5228 transitions. [2021-12-18 03:38:42,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 03:38:42,532 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2021-12-18 03:38:42,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 03:38:42,559 INFO L225 Difference]: With dead ends: 3621 [2021-12-18 03:38:42,560 INFO L226 Difference]: Without dead ends: 1845 [2021-12-18 03:38:42,571 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 03:38:42,576 INFO L933 BasicCegarLoop]: 2220 mSDtfsCounter, 2984 mSDsluCounter, 780 mSDsCounter, 0 mSdLazyCounter, 666 mSolverCounterSat, 1022 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3158 SdHoareTripleChecker+Valid, 3000 SdHoareTripleChecker+Invalid, 1690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1022 IncrementalHoareTripleChecker+Valid, 666 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2021-12-18 03:38:42,577 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3158 Valid, 3000 Invalid, 1690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1022 Valid, 666 Invalid, 2 Unknown, 0 Unchecked, 9.4s Time] [2021-12-18 03:38:42,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1845 states. [2021-12-18 03:38:42,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1845 to 1763. [2021-12-18 03:38:42,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1763 states, 1291 states have (on average 1.3764523625096825) internal successors, (1777), 1303 states have internal predecessors, (1777), 377 states have call successors, (377), 96 states have call predecessors, (377), 94 states have return successors, (371), 369 states have call predecessors, (371), 371 states have call successors, (371) [2021-12-18 03:38:42,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1763 states to 1763 states and 2525 transitions. [2021-12-18 03:38:42,726 INFO L78 Accepts]: Start accepts. Automaton has 1763 states and 2525 transitions. Word has length 12 [2021-12-18 03:38:42,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 03:38:42,726 INFO L470 AbstractCegarLoop]: Abstraction has 1763 states and 2525 transitions. [2021-12-18 03:38:42,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-18 03:38:42,727 INFO L276 IsEmpty]: Start isEmpty. Operand 1763 states and 2525 transitions. [2021-12-18 03:38:42,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-18 03:38:42,728 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 03:38:42,728 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 03:38:42,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-18 03:38:42,728 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 03:38:42,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 03:38:42,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1909028712, now seen corresponding path program 1 times [2021-12-18 03:38:42,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 03:38:42,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158803736] [2021-12-18 03:38:42,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 03:38:42,735 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 03:38:42,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:38:43,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 03:38:43,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:38:43,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-18 03:38:43,303 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 03:38:43,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158803736] [2021-12-18 03:38:43,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158803736] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 03:38:43,304 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 03:38:43,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 03:38:43,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519703689] [2021-12-18 03:38:43,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 03:38:43,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 03:38:43,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 03:38:43,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 03:38:43,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 03:38:43,306 INFO L87 Difference]: Start difference. First operand 1763 states and 2525 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-18 03:38:45,473 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:38:47,776 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:38:53,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 03:38:53,044 INFO L93 Difference]: Finished difference Result 1847 states and 2646 transitions. [2021-12-18 03:38:53,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 03:38:53,045 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2021-12-18 03:38:53,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 03:38:53,055 INFO L225 Difference]: With dead ends: 1847 [2021-12-18 03:38:53,055 INFO L226 Difference]: Without dead ends: 1844 [2021-12-18 03:38:53,056 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 03:38:53,057 INFO L933 BasicCegarLoop]: 2209 mSDtfsCounter, 2972 mSDsluCounter, 777 mSDsCounter, 0 mSdLazyCounter, 662 mSolverCounterSat, 1012 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3145 SdHoareTripleChecker+Valid, 2986 SdHoareTripleChecker+Invalid, 1676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1012 IncrementalHoareTripleChecker+Valid, 662 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2021-12-18 03:38:53,058 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3145 Valid, 2986 Invalid, 1676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1012 Valid, 662 Invalid, 2 Unknown, 0 Unchecked, 9.4s Time] [2021-12-18 03:38:53,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1844 states. [2021-12-18 03:38:53,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1844 to 1762. [2021-12-18 03:38:53,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1762 states, 1291 states have (on average 1.3756777691711852) internal successors, (1776), 1302 states have internal predecessors, (1776), 376 states have call successors, (376), 96 states have call predecessors, (376), 94 states have return successors, (371), 369 states have call predecessors, (371), 371 states have call successors, (371) [2021-12-18 03:38:53,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1762 states to 1762 states and 2523 transitions. [2021-12-18 03:38:53,113 INFO L78 Accepts]: Start accepts. Automaton has 1762 states and 2523 transitions. Word has length 13 [2021-12-18 03:38:53,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 03:38:53,115 INFO L470 AbstractCegarLoop]: Abstraction has 1762 states and 2523 transitions. [2021-12-18 03:38:53,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-18 03:38:53,115 INFO L276 IsEmpty]: Start isEmpty. Operand 1762 states and 2523 transitions. [2021-12-18 03:38:53,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-12-18 03:38:53,116 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 03:38:53,116 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 03:38:53,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-18 03:38:53,116 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 03:38:53,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 03:38:53,116 INFO L85 PathProgramCache]: Analyzing trace with hash 947442937, now seen corresponding path program 1 times [2021-12-18 03:38:53,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 03:38:53,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897718346] [2021-12-18 03:38:53,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 03:38:53,118 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 03:38:53,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:38:53,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 03:38:53,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:38:53,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-18 03:38:53,637 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 03:38:53,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897718346] [2021-12-18 03:38:53,638 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897718346] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 03:38:53,638 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 03:38:53,638 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 03:38:53,638 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995355064] [2021-12-18 03:38:53,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 03:38:53,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 03:38:53,638 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 03:38:53,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 03:38:53,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 03:38:53,639 INFO L87 Difference]: Start difference. First operand 1762 states and 2523 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-18 03:38:55,738 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:38:58,023 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:39:10,343 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:39:17,276 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:39:21,087 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:39:23,132 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:39:25,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 03:39:25,512 INFO L93 Difference]: Finished difference Result 5302 states and 7617 transitions. [2021-12-18 03:39:25,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 03:39:25,512 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2021-12-18 03:39:25,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 03:39:25,527 INFO L225 Difference]: With dead ends: 5302 [2021-12-18 03:39:25,527 INFO L226 Difference]: Without dead ends: 3546 [2021-12-18 03:39:25,533 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 03:39:25,535 INFO L933 BasicCegarLoop]: 2534 mSDtfsCounter, 3785 mSDsluCounter, 1807 mSDsCounter, 0 mSdLazyCounter, 2513 mSolverCounterSat, 1363 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4136 SdHoareTripleChecker+Valid, 4341 SdHoareTripleChecker+Invalid, 3882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1363 IncrementalHoareTripleChecker+Valid, 2513 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.4s IncrementalHoareTripleChecker+Time [2021-12-18 03:39:25,536 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4136 Valid, 4341 Invalid, 3882 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1363 Valid, 2513 Invalid, 6 Unknown, 0 Unchecked, 31.4s Time] [2021-12-18 03:39:25,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3546 states. [2021-12-18 03:39:25,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3546 to 3541. [2021-12-18 03:39:25,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3541 states, 2599 states have (on average 1.3743747595228935) internal successors, (3572), 2620 states have internal predecessors, (3572), 753 states have call successors, (753), 189 states have call predecessors, (753), 188 states have return successors, (759), 743 states have call predecessors, (759), 745 states have call successors, (759) [2021-12-18 03:39:25,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3541 states to 3541 states and 5084 transitions. [2021-12-18 03:39:25,650 INFO L78 Accepts]: Start accepts. Automaton has 3541 states and 5084 transitions. Word has length 14 [2021-12-18 03:39:25,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 03:39:25,651 INFO L470 AbstractCegarLoop]: Abstraction has 3541 states and 5084 transitions. [2021-12-18 03:39:25,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-18 03:39:25,651 INFO L276 IsEmpty]: Start isEmpty. Operand 3541 states and 5084 transitions. [2021-12-18 03:39:25,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-12-18 03:39:25,652 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 03:39:25,652 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 03:39:25,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-18 03:39:25,652 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 03:39:25,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 03:39:25,652 INFO L85 PathProgramCache]: Analyzing trace with hash -696244293, now seen corresponding path program 1 times [2021-12-18 03:39:25,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 03:39:25,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083006818] [2021-12-18 03:39:25,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 03:39:25,653 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 03:39:25,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:39:26,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 03:39:26,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:39:26,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-18 03:39:26,265 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 03:39:26,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083006818] [2021-12-18 03:39:26,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083006818] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 03:39:26,265 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 03:39:26,265 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 03:39:26,265 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169245925] [2021-12-18 03:39:26,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 03:39:26,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 03:39:26,266 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 03:39:26,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 03:39:26,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 03:39:26,266 INFO L87 Difference]: Start difference. First operand 3541 states and 5084 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-18 03:39:28,360 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:39:30,635 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:39:36,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 03:39:36,356 INFO L93 Difference]: Finished difference Result 3580 states and 5138 transitions. [2021-12-18 03:39:36,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 03:39:36,357 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2021-12-18 03:39:36,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 03:39:36,369 INFO L225 Difference]: With dead ends: 3580 [2021-12-18 03:39:36,370 INFO L226 Difference]: Without dead ends: 3572 [2021-12-18 03:39:36,371 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 03:39:36,373 INFO L933 BasicCegarLoop]: 2226 mSDtfsCounter, 2953 mSDsluCounter, 777 mSDsCounter, 0 mSdLazyCounter, 657 mSolverCounterSat, 1000 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3126 SdHoareTripleChecker+Valid, 3003 SdHoareTripleChecker+Invalid, 1659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1000 IncrementalHoareTripleChecker+Valid, 657 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2021-12-18 03:39:36,374 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3126 Valid, 3003 Invalid, 1659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1000 Valid, 657 Invalid, 2 Unknown, 0 Unchecked, 9.8s Time] [2021-12-18 03:39:36,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3572 states. [2021-12-18 03:39:36,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3572 to 3570. [2021-12-18 03:39:36,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3570 states, 2621 states have (on average 1.3731400228920259) internal successors, (3599), 2641 states have internal predecessors, (3599), 759 states have call successors, (759), 188 states have call predecessors, (759), 189 states have return successors, (768), 752 states have call predecessors, (768), 753 states have call successors, (768) [2021-12-18 03:39:36,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3570 states to 3570 states and 5126 transitions. [2021-12-18 03:39:36,457 INFO L78 Accepts]: Start accepts. Automaton has 3570 states and 5126 transitions. Word has length 15 [2021-12-18 03:39:36,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 03:39:36,457 INFO L470 AbstractCegarLoop]: Abstraction has 3570 states and 5126 transitions. [2021-12-18 03:39:36,457 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-18 03:39:36,457 INFO L276 IsEmpty]: Start isEmpty. Operand 3570 states and 5126 transitions. [2021-12-18 03:39:36,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-18 03:39:36,469 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 03:39:36,469 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 03:39:36,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-18 03:39:36,470 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 03:39:36,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 03:39:36,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1329938334, now seen corresponding path program 1 times [2021-12-18 03:39:36,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 03:39:36,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410558692] [2021-12-18 03:39:36,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 03:39:36,471 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 03:39:36,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:39:37,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 03:39:37,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:39:37,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 03:39:37,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:39:37,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-18 03:39:37,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:39:37,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 03:39:37,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:39:37,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 03:39:37,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:39:37,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 03:39:37,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:39:37,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 03:39:37,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:39:37,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 03:39:37,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:39:37,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-18 03:39:37,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:39:37,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-18 03:39:37,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:39:37,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-18 03:39:37,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:39:37,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 03:39:37,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:39:37,252 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-18 03:39:37,252 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 03:39:37,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410558692] [2021-12-18 03:39:37,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410558692] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 03:39:37,252 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 03:39:37,253 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 03:39:37,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068026599] [2021-12-18 03:39:37,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 03:39:37,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 03:39:37,254 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 03:39:37,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 03:39:37,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-18 03:39:37,254 INFO L87 Difference]: Start difference. First operand 3570 states and 5126 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-18 03:39:39,352 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:39:41,632 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:39:57,875 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:40:02,530 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:40:07,362 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:40:09,399 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:40:11,434 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:40:13,487 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:40:20,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 03:40:20,084 INFO L93 Difference]: Finished difference Result 7612 states and 11097 transitions. [2021-12-18 03:40:20,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 03:40:20,085 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 111 [2021-12-18 03:40:20,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 03:40:20,118 INFO L225 Difference]: With dead ends: 7612 [2021-12-18 03:40:20,118 INFO L226 Difference]: Without dead ends: 4048 [2021-12-18 03:40:20,128 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 03:40:20,129 INFO L933 BasicCegarLoop]: 2370 mSDtfsCounter, 1680 mSDsluCounter, 3725 mSDsCounter, 0 mSdLazyCounter, 3367 mSolverCounterSat, 1107 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1866 SdHoareTripleChecker+Valid, 6095 SdHoareTripleChecker+Invalid, 4482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1107 IncrementalHoareTripleChecker+Valid, 3367 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.1s IncrementalHoareTripleChecker+Time [2021-12-18 03:40:20,129 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1866 Valid, 6095 Invalid, 4482 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1107 Valid, 3367 Invalid, 8 Unknown, 0 Unchecked, 42.1s Time] [2021-12-18 03:40:20,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4048 states. [2021-12-18 03:40:20,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4048 to 3572. [2021-12-18 03:40:20,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3572 states, 2623 states have (on average 1.372855508959207) internal successors, (3601), 2643 states have internal predecessors, (3601), 759 states have call successors, (759), 188 states have call predecessors, (759), 189 states have return successors, (768), 752 states have call predecessors, (768), 753 states have call successors, (768) [2021-12-18 03:40:20,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3572 states to 3572 states and 5128 transitions. [2021-12-18 03:40:20,232 INFO L78 Accepts]: Start accepts. Automaton has 3572 states and 5128 transitions. Word has length 111 [2021-12-18 03:40:20,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 03:40:20,233 INFO L470 AbstractCegarLoop]: Abstraction has 3572 states and 5128 transitions. [2021-12-18 03:40:20,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-18 03:40:20,233 INFO L276 IsEmpty]: Start isEmpty. Operand 3572 states and 5128 transitions. [2021-12-18 03:40:20,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-18 03:40:20,238 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 03:40:20,238 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 03:40:20,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-18 03:40:20,239 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 03:40:20,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 03:40:20,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1357003936, now seen corresponding path program 1 times [2021-12-18 03:40:20,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 03:40:20,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962943373] [2021-12-18 03:40:20,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 03:40:20,242 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 03:40:20,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:40:20,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 03:40:20,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:40:20,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 03:40:20,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:40:20,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-18 03:40:20,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:40:20,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 03:40:20,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:40:20,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 03:40:20,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:40:20,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 03:40:20,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:40:20,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 03:40:20,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:40:20,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 03:40:20,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:40:20,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-18 03:40:20,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:40:21,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-18 03:40:21,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:40:21,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-18 03:40:21,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:40:21,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 03:40:21,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:40:21,064 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-18 03:40:21,064 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 03:40:21,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962943373] [2021-12-18 03:40:21,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962943373] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 03:40:21,064 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 03:40:21,064 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 03:40:21,064 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320648125] [2021-12-18 03:40:21,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 03:40:21,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 03:40:21,066 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 03:40:21,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 03:40:21,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-18 03:40:21,066 INFO L87 Difference]: Start difference. First operand 3572 states and 5128 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-18 03:40:23,158 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:40:25,429 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:40:27,705 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:40:29,988 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:40:52,367 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:40:57,585 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:40:59,632 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:41:01,678 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:41:03,626 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:41:05,676 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:41:12,310 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:41:14,355 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:41:16,406 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:41:18,460 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:41:20,501 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:41:22,550 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:41:32,486 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:41:34,527 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:41:39,728 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:41:41,780 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:41:43,826 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:41:47,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 03:41:47,992 INFO L93 Difference]: Finished difference Result 8063 states and 11692 transitions. [2021-12-18 03:41:47,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-18 03:41:47,992 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 111 [2021-12-18 03:41:47,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 03:41:48,008 INFO L225 Difference]: With dead ends: 8063 [2021-12-18 03:41:48,008 INFO L226 Difference]: Without dead ends: 4497 [2021-12-18 03:41:48,015 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-12-18 03:41:48,016 INFO L933 BasicCegarLoop]: 4202 mSDtfsCounter, 3810 mSDsluCounter, 5338 mSDsCounter, 0 mSdLazyCounter, 5596 mSolverCounterSat, 2145 mSolverCounterUnsat, 20 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 82.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4198 SdHoareTripleChecker+Valid, 9540 SdHoareTripleChecker+Invalid, 7761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2145 IncrementalHoareTripleChecker+Valid, 5596 IncrementalHoareTripleChecker+Invalid, 20 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 85.8s IncrementalHoareTripleChecker+Time [2021-12-18 03:41:48,016 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4198 Valid, 9540 Invalid, 7761 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2145 Valid, 5596 Invalid, 20 Unknown, 0 Unchecked, 85.8s Time] [2021-12-18 03:41:48,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4497 states. [2021-12-18 03:41:48,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4497 to 3882. [2021-12-18 03:41:48,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3882 states, 2851 states have (on average 1.3703963521571378) internal successors, (3907), 2876 states have internal predecessors, (3907), 804 states have call successors, (804), 227 states have call predecessors, (804), 226 states have return successors, (802), 793 states have call predecessors, (802), 794 states have call successors, (802) [2021-12-18 03:41:48,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3882 states to 3882 states and 5513 transitions. [2021-12-18 03:41:48,135 INFO L78 Accepts]: Start accepts. Automaton has 3882 states and 5513 transitions. Word has length 111 [2021-12-18 03:41:48,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 03:41:48,136 INFO L470 AbstractCegarLoop]: Abstraction has 3882 states and 5513 transitions. [2021-12-18 03:41:48,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-18 03:41:48,136 INFO L276 IsEmpty]: Start isEmpty. Operand 3882 states and 5513 transitions. [2021-12-18 03:41:48,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-18 03:41:48,143 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 03:41:48,143 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 03:41:48,144 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-18 03:41:48,144 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 03:41:48,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 03:41:48,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1289997183, now seen corresponding path program 1 times [2021-12-18 03:41:48,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 03:41:48,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091123741] [2021-12-18 03:41:48,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 03:41:48,145 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 03:41:48,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:41:48,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 03:41:48,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:41:48,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 03:41:48,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:41:48,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-18 03:41:48,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:41:48,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 03:41:48,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:41:48,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 03:41:48,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:41:48,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 03:41:48,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:41:48,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 03:41:48,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:41:48,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 03:41:48,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:41:48,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-18 03:41:48,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:41:49,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-18 03:41:49,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:41:49,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-18 03:41:49,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:41:49,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 03:41:49,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:41:49,207 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-18 03:41:49,207 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 03:41:49,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091123741] [2021-12-18 03:41:49,207 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091123741] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 03:41:49,207 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 03:41:49,207 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-18 03:41:49,207 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805684831] [2021-12-18 03:41:49,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 03:41:49,207 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-18 03:41:49,207 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 03:41:49,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-18 03:41:49,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-12-18 03:41:49,208 INFO L87 Difference]: Start difference. First operand 3882 states and 5513 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-18 03:41:51,310 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:41:53,581 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:42:24,793 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:42:32,508 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:42:34,555 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:42:36,612 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:42:38,663 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:42:40,723 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:42:42,764 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:42:44,814 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:42:53,441 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:42:55,502 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:43:06,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 03:43:06,763 INFO L93 Difference]: Finished difference Result 4689 states and 6808 transitions. [2021-12-18 03:43:06,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-18 03:43:06,763 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 111 [2021-12-18 03:43:06,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 03:43:06,784 INFO L225 Difference]: With dead ends: 4689 [2021-12-18 03:43:06,784 INFO L226 Difference]: Without dead ends: 4478 [2021-12-18 03:43:06,786 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2021-12-18 03:43:06,788 INFO L933 BasicCegarLoop]: 2377 mSDtfsCounter, 1658 mSDsluCounter, 8033 mSDsCounter, 0 mSdLazyCounter, 7382 mSolverCounterSat, 1097 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 73.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1841 SdHoareTripleChecker+Valid, 10410 SdHoareTripleChecker+Invalid, 8491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1097 IncrementalHoareTripleChecker+Valid, 7382 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 76.2s IncrementalHoareTripleChecker+Time [2021-12-18 03:43:06,788 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1841 Valid, 10410 Invalid, 8491 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1097 Valid, 7382 Invalid, 12 Unknown, 0 Unchecked, 76.2s Time] [2021-12-18 03:43:06,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4478 states. [2021-12-18 03:43:06,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4478 to 3873. [2021-12-18 03:43:06,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3873 states, 2846 states have (on average 1.370344342937456) internal successors, (3900), 2870 states have internal predecessors, (3900), 800 states have call successors, (800), 227 states have call predecessors, (800), 226 states have return successors, (799), 790 states have call predecessors, (799), 791 states have call successors, (799) [2021-12-18 03:43:06,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3873 states to 3873 states and 5499 transitions. [2021-12-18 03:43:06,901 INFO L78 Accepts]: Start accepts. Automaton has 3873 states and 5499 transitions. Word has length 111 [2021-12-18 03:43:06,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 03:43:06,901 INFO L470 AbstractCegarLoop]: Abstraction has 3873 states and 5499 transitions. [2021-12-18 03:43:06,901 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-18 03:43:06,901 INFO L276 IsEmpty]: Start isEmpty. Operand 3873 states and 5499 transitions. [2021-12-18 03:43:06,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-12-18 03:43:06,906 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 03:43:06,906 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-18 03:43:06,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-18 03:43:06,906 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 03:43:06,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 03:43:06,907 INFO L85 PathProgramCache]: Analyzing trace with hash -396572595, now seen corresponding path program 1 times [2021-12-18 03:43:06,907 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 03:43:06,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638062101] [2021-12-18 03:43:06,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 03:43:06,907 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 03:43:07,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:43:07,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 03:43:07,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:43:07,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 03:43:07,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:43:07,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 03:43:07,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:43:07,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-18 03:43:07,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:43:07,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 03:43:07,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:43:07,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 03:43:07,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:43:07,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 03:43:07,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:43:07,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 03:43:07,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:43:07,972 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-18 03:43:07,972 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 03:43:07,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638062101] [2021-12-18 03:43:07,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638062101] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 03:43:07,973 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 03:43:07,973 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-18 03:43:07,973 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404919999] [2021-12-18 03:43:07,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 03:43:07,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-18 03:43:07,973 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 03:43:07,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-18 03:43:07,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-18 03:43:07,974 INFO L87 Difference]: Start difference. First operand 3873 states and 5499 transitions. Second operand has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 1 states have call successors, (8) [2021-12-18 03:43:10,071 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:43:12,361 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:43:14,632 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:43:45,751 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:43:53,085 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:44:00,469 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:44:02,495 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:44:04,541 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15