./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-5fdb450-1-144_2a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5b36d44f 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-validator-v0.8/linux-stable-5fdb450-1-144_2a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.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 0f420ae29f1d217fd86475befc2729bf689978fed36c08e1357ee5c24faa0f48 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 14:03:24,315 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 14:03:24,316 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 14:03:24,359 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 14:03:24,369 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 14:03:24,371 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 14:03:24,375 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 14:03:24,377 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 14:03:24,393 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 14:03:24,396 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 14:03:24,397 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 14:03:24,398 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 14:03:24,398 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 14:03:24,400 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 14:03:24,401 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 14:03:24,404 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 14:03:24,404 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 14:03:24,405 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 14:03:24,406 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 14:03:24,411 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 14:03:24,411 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 14:03:24,412 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 14:03:24,413 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 14:03:24,414 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 14:03:24,418 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 14:03:24,419 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 14:03:24,419 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 14:03:24,420 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 14:03:24,420 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 14:03:24,421 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 14:03:24,421 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 14:03:24,422 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 14:03:24,423 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 14:03:24,423 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 14:03:24,424 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 14:03:24,424 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 14:03:24,425 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 14:03:24,425 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 14:03:24,425 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 14:03:24,425 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 14:03:24,426 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 14:03:24,427 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 14:03:24,456 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 14:03:24,457 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 14:03:24,457 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 14:03:24,457 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 14:03:24,458 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 14:03:24,458 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 14:03:24,459 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 14:03:24,459 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 14:03:24,459 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 14:03:24,459 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 14:03:24,460 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 14:03:24,460 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 14:03:24,460 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 14:03:24,460 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 14:03:24,460 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 14:03:24,460 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 14:03:24,460 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 14:03:24,461 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 14:03:24,461 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 14:03:24,461 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 14:03:24,461 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 14:03:24,461 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 14:03:24,461 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 14:03:24,461 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 14:03:24,461 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 14:03:24,462 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 14:03:24,462 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 14:03:24,462 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 14:03:24,462 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 14:03:24,462 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f420ae29f1d217fd86475befc2729bf689978fed36c08e1357ee5c24faa0f48 [2021-11-07 14:03:24,677 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 14:03:24,692 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 14:03:24,694 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 14:03:24,695 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 14:03:24,696 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 14:03:24,696 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-5fdb450-1-144_2a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-11-07 14:03:24,737 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1eaaf520f/a3da111b2f0d468eb34787964f1ada11/FLAG23b7765d0 [2021-11-07 14:03:25,337 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 14:03:25,338 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-5fdb450-1-144_2a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-11-07 14:03:25,372 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1eaaf520f/a3da111b2f0d468eb34787964f1ada11/FLAG23b7765d0 [2021-11-07 14:03:25,783 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1eaaf520f/a3da111b2f0d468eb34787964f1ada11 [2021-11-07 14:03:25,785 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 14:03:25,786 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 14:03:25,788 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 14:03:25,789 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 14:03:25,791 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 14:03:25,792 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:03:25" (1/1) ... [2021-11-07 14:03:25,793 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66e1be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:03:25, skipping insertion in model container [2021-11-07 14:03:25,793 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:03:25" (1/1) ... [2021-11-07 14:03:25,797 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 14:03:25,879 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 14:03:26,899 WARN L228 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-validator-v0.8/linux-stable-5fdb450-1-144_2a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.cil.out.i[238753,238766] [2021-11-07 14:03:26,935 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 14:03:26,953 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 14:03:27,205 WARN L228 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-validator-v0.8/linux-stable-5fdb450-1-144_2a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.cil.out.i[238753,238766] [2021-11-07 14:03:27,215 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 14:03:27,279 INFO L208 MainTranslator]: Completed translation [2021-11-07 14:03:27,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:03:27 WrapperNode [2021-11-07 14:03:27,280 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 14:03:27,281 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 14:03:27,281 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 14:03:27,281 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 14:03:27,286 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:03:27" (1/1) ... [2021-11-07 14:03:27,347 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:03:27" (1/1) ... [2021-11-07 14:03:28,570 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 14:03:28,570 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 14:03:28,571 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 14:03:28,571 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 14:03:28,577 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:03:27" (1/1) ... [2021-11-07 14:03:28,577 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:03:27" (1/1) ... [2021-11-07 14:03:29,035 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:03:27" (1/1) ... [2021-11-07 14:03:29,037 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:03:27" (1/1) ... [2021-11-07 14:03:29,967 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:03:27" (1/1) ... [2021-11-07 14:03:30,126 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:03:27" (1/1) ... [2021-11-07 14:03:30,214 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:03:27" (1/1) ... [2021-11-07 14:03:30,455 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 14:03:30,456 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 14:03:30,456 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 14:03:30,457 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 14:03:30,457 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:03:27" (1/1) ... [2021-11-07 14:03:30,462 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 14:03:30,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 14:03:30,485 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 14:03:30,492 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 14:03:30,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 14:03:30,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 14:03:30,514 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_usb_bulk_msg [2021-11-07 14:03:30,514 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_usb_bulk_msg [2021-11-07 14:03:30,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2021-11-07 14:03:30,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2021-11-07 14:03:30,514 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_signal_sdio_irq [2021-11-07 14:03:30,514 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_signal_sdio_irq [2021-11-07 14:03:30,514 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-11-07 14:03:30,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-11-07 14:03:30,514 INFO L130 BoogieDeclarations]: Found specification of procedure __command_read_data [2021-11-07 14:03:30,515 INFO L138 BoogieDeclarations]: Found implementation of procedure __command_read_data [2021-11-07 14:03:30,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_26 [2021-11-07 14:03:30,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_26 [2021-11-07 14:03:30,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 14:03:30,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_28 [2021-11-07 14:03:30,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_28 [2021-11-07 14:03:30,515 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 14:03:30,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_12 [2021-11-07 14:03:30,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_12 [2021-11-07 14:03:30,516 INFO L130 BoogieDeclarations]: Found specification of procedure irqpoll_out_completed [2021-11-07 14:03:30,516 INFO L138 BoogieDeclarations]: Found implementation of procedure irqpoll_out_completed [2021-11-07 14:03:30,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_14 [2021-11-07 14:03:30,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_14 [2021-11-07 14:03:30,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 14:03:30,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 14:03:30,516 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_enable_sdio_irq [2021-11-07 14:03:30,516 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_enable_sdio_irq [2021-11-07 14:03:30,516 INFO L130 BoogieDeclarations]: Found specification of procedure command_out_completed [2021-11-07 14:03:30,517 INFO L138 BoogieDeclarations]: Found implementation of procedure command_out_completed [2021-11-07 14:03:30,517 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 14:03:30,517 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_cmndwork_thread [2021-11-07 14:03:30,517 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_cmndwork_thread [2021-11-07 14:03:30,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 14:03:30,517 INFO L130 BoogieDeclarations]: Found specification of procedure send_command [2021-11-07 14:03:30,517 INFO L138 BoogieDeclarations]: Found implementation of procedure send_command [2021-11-07 14:03:30,517 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 14:03:30,517 INFO L130 BoogieDeclarations]: Found specification of procedure send_irqpoll [2021-11-07 14:03:30,518 INFO L138 BoogieDeclarations]: Found implementation of procedure send_irqpoll [2021-11-07 14:03:30,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 14:03:30,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_31 [2021-11-07 14:03:30,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_31 [2021-11-07 14:03:30,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 14:03:30,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 14:03:30,518 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 14:03:30,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 14:03:30,518 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_pollwork_thread [2021-11-07 14:03:30,519 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_pollwork_thread [2021-11-07 14:03:30,519 INFO L130 BoogieDeclarations]: Found specification of procedure __do_poll [2021-11-07 14:03:30,519 INFO L138 BoogieDeclarations]: Found implementation of procedure __do_poll [2021-11-07 14:03:30,519 INFO L130 BoogieDeclarations]: Found specification of procedure __command_write_data [2021-11-07 14:03:30,519 INFO L138 BoogieDeclarations]: Found implementation of procedure __command_write_data [2021-11-07 14:03:30,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 14:03:30,519 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-07 14:03:30,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 14:03:30,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 14:03:51,389 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 14:03:51,390 INFO L299 CfgBuilder]: Removed 12856 assume(true) statements. [2021-11-07 14:03:51,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:03:51 BoogieIcfgContainer [2021-11-07 14:03:51,400 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 14:03:51,401 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 14:03:51,401 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 14:03:51,404 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 14:03:51,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:03:25" (1/3) ... [2021-11-07 14:03:51,405 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dfdcbda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:03:51, skipping insertion in model container [2021-11-07 14:03:51,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:03:27" (2/3) ... [2021-11-07 14:03:51,405 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dfdcbda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:03:51, skipping insertion in model container [2021-11-07 14:03:51,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:03:51" (3/3) ... [2021-11-07 14:03:51,407 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-5fdb450-1-144_2a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-11-07 14:03:51,415 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 14:03:51,416 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-11-07 14:03:51,503 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 14:03:51,511 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 14:03:51,512 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-07 14:03:51,666 INFO L276 IsEmpty]: Start isEmpty. Operand has 9833 states, 9767 states have (on average 1.4638066960172007) internal successors, (14297), 9777 states have internal predecessors, (14297), 40 states have call successors, (40), 20 states have call predecessors, (40), 20 states have return successors, (40), 37 states have call predecessors, (40), 40 states have call successors, (40) [2021-11-07 14:03:51,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-07 14:03:51,687 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:03:51,688 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 14:03:51,688 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 14:03:51,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:03:51,693 INFO L85 PathProgramCache]: Analyzing trace with hash -114298510, now seen corresponding path program 1 times [2021-11-07 14:03:51,700 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:03:51,701 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257137376] [2021-11-07 14:03:51,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:03:51,702 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:03:52,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:03:52,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 14:03:52,193 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:03:52,194 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257137376] [2021-11-07 14:03:52,195 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257137376] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:03:52,196 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:03:52,196 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 14:03:52,198 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097111873] [2021-11-07 14:03:52,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:03:52,202 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 14:03:52,202 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:03:52,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 14:03:52,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 14:03:52,254 INFO L87 Difference]: Start difference. First operand has 9833 states, 9767 states have (on average 1.4638066960172007) internal successors, (14297), 9777 states have internal predecessors, (14297), 40 states have call successors, (40), 20 states have call predecessors, (40), 20 states have return successors, (40), 37 states have call predecessors, (40), 40 states have call successors, (40) Second operand has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:03:52,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:03:52,517 INFO L93 Difference]: Finished difference Result 19662 states and 28781 transitions. [2021-11-07 14:03:52,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 14:03:52,519 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-11-07 14:03:52,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:03:52,562 INFO L225 Difference]: With dead ends: 19662 [2021-11-07 14:03:52,562 INFO L226 Difference]: Without dead ends: 9820 [2021-11-07 14:03:52,589 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 14:03:52,591 INFO L933 BasicCegarLoop]: 14354 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14354 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 25.10ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-07 14:03:52,592 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 14354 Invalid, 0 Unknown, 0 Unchecked, 25.10ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-07 14:03:52,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9820 states. [2021-11-07 14:03:52,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9820 to 9820. [2021-11-07 14:03:53,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9820 states, 9755 states have (on average 1.46099436186571) internal successors, (14252), 9764 states have internal predecessors, (14252), 40 states have call successors, (40), 20 states have call predecessors, (40), 20 states have return successors, (40), 37 states have call predecessors, (40), 40 states have call successors, (40) [2021-11-07 14:03:53,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9820 states to 9820 states and 14332 transitions. [2021-11-07 14:03:53,043 INFO L78 Accepts]: Start accepts. Automaton has 9820 states and 14332 transitions. Word has length 48 [2021-11-07 14:03:53,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:03:53,043 INFO L470 AbstractCegarLoop]: Abstraction has 9820 states and 14332 transitions. [2021-11-07 14:03:53,044 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:03:53,044 INFO L276 IsEmpty]: Start isEmpty. Operand 9820 states and 14332 transitions. [2021-11-07 14:03:53,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-07 14:03:53,049 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:03:53,050 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 14:03:53,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 14:03:53,052 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 14:03:53,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:03:53,054 INFO L85 PathProgramCache]: Analyzing trace with hash 1789979514, now seen corresponding path program 1 times [2021-11-07 14:03:53,054 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:03:53,054 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290773553] [2021-11-07 14:03:53,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:03:53,055 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:03:53,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:03:53,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 14:03:53,317 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:03:53,317 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290773553] [2021-11-07 14:03:53,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290773553] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:03:53,317 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:03:53,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 14:03:53,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854472969] [2021-11-07 14:03:53,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:03:53,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 14:03:53,319 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:03:53,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 14:03:53,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:03:53,319 INFO L87 Difference]: Start difference. First operand 9820 states and 14332 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:04:00,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:04:00,176 INFO L93 Difference]: Finished difference Result 29402 states and 43087 transitions. [2021-11-07 14:04:00,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 14:04:00,178 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-11-07 14:04:00,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:04:00,258 INFO L225 Difference]: With dead ends: 29402 [2021-11-07 14:04:00,259 INFO L226 Difference]: Without dead ends: 19610 [2021-11-07 14:04:00,279 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.56ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:04:00,282 INFO L933 BasicCegarLoop]: 13746 mSDtfsCounter, 13664 mSDsluCounter, 13000 mSDsCounter, 0 mSdLazyCounter, 1350 mSolverCounterSat, 1314 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4676.80ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13664 SdHoareTripleChecker+Valid, 26746 SdHoareTripleChecker+Invalid, 2664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 49.21ms SdHoareTripleChecker+Time, 1314 IncrementalHoareTripleChecker+Valid, 1350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6219.24ms IncrementalHoareTripleChecker+Time [2021-11-07 14:04:00,283 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13664 Valid, 26746 Invalid, 2664 Unknown, 0 Unchecked, 49.21ms Time], IncrementalHoareTripleChecker [1314 Valid, 1350 Invalid, 0 Unknown, 0 Unchecked, 6219.24ms Time] [2021-11-07 14:04:00,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19610 states. [2021-11-07 14:04:00,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19610 to 19598. [2021-11-07 14:04:00,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19598 states, 19473 states have (on average 1.4278231397319365) internal successors, (27804), 19487 states have internal predecessors, (27804), 80 states have call successors, (80), 40 states have call predecessors, (80), 40 states have return successors, (152), 74 states have call predecessors, (152), 80 states have call successors, (152) [2021-11-07 14:04:00,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19598 states to 19598 states and 28036 transitions. [2021-11-07 14:04:00,662 INFO L78 Accepts]: Start accepts. Automaton has 19598 states and 28036 transitions. Word has length 48 [2021-11-07 14:04:00,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:04:00,663 INFO L470 AbstractCegarLoop]: Abstraction has 19598 states and 28036 transitions. [2021-11-07 14:04:00,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:04:00,663 INFO L276 IsEmpty]: Start isEmpty. Operand 19598 states and 28036 transitions. [2021-11-07 14:04:00,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-07 14:04:00,667 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:04:00,667 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 14:04:00,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 14:04:00,668 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 14:04:00,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:04:00,668 INFO L85 PathProgramCache]: Analyzing trace with hash -345166374, now seen corresponding path program 1 times [2021-11-07 14:04:00,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:04:00,669 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2710265] [2021-11-07 14:04:00,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:04:00,669 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:04:00,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:04:00,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 14:04:00,850 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:04:00,851 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2710265] [2021-11-07 14:04:00,851 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2710265] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:04:00,851 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:04:00,851 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 14:04:00,851 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507246733] [2021-11-07 14:04:00,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:04:00,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 14:04:00,852 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:04:00,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 14:04:00,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:04:00,853 INFO L87 Difference]: Start difference. First operand 19598 states and 28036 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 2 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:04:06,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:04:06,817 INFO L93 Difference]: Finished difference Result 58080 states and 83191 transitions. [2021-11-07 14:04:06,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 14:04:06,818 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 2 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-11-07 14:04:06,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:04:06,917 INFO L225 Difference]: With dead ends: 58080 [2021-11-07 14:04:06,918 INFO L226 Difference]: Without dead ends: 38510 [2021-11-07 14:04:06,961 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.99ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:04:06,967 INFO L933 BasicCegarLoop]: 14935 mSDtfsCounter, 13338 mSDsluCounter, 13313 mSDsCounter, 0 mSdLazyCounter, 992 mSolverCounterSat, 655 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3705.35ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13338 SdHoareTripleChecker+Valid, 28248 SdHoareTripleChecker+Invalid, 1647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 36.89ms SdHoareTripleChecker+Time, 655 IncrementalHoareTripleChecker+Valid, 992 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5257.11ms IncrementalHoareTripleChecker+Time [2021-11-07 14:04:06,970 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13338 Valid, 28248 Invalid, 1647 Unknown, 0 Unchecked, 36.89ms Time], IncrementalHoareTripleChecker [655 Valid, 992 Invalid, 0 Unknown, 0 Unchecked, 5257.11ms Time] [2021-11-07 14:04:07,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38510 states. [2021-11-07 14:04:07,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38510 to 38499. [2021-11-07 14:04:07,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38499 states, 38254 states have (on average 1.4011345218800648) internal successors, (53599), 38278 states have internal predecessors, (53599), 160 states have call successors, (160), 80 states have call predecessors, (160), 80 states have return successors, (456), 148 states have call predecessors, (456), 160 states have call successors, (456) [2021-11-07 14:04:07,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38499 states to 38499 states and 54215 transitions. [2021-11-07 14:04:07,822 INFO L78 Accepts]: Start accepts. Automaton has 38499 states and 54215 transitions. Word has length 49 [2021-11-07 14:04:07,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:04:07,822 INFO L470 AbstractCegarLoop]: Abstraction has 38499 states and 54215 transitions. [2021-11-07 14:04:07,823 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 2 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:04:07,823 INFO L276 IsEmpty]: Start isEmpty. Operand 38499 states and 54215 transitions. [2021-11-07 14:04:07,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-07 14:04:07,825 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:04:07,825 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 14:04:07,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 14:04:07,826 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 14:04:07,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:04:07,826 INFO L85 PathProgramCache]: Analyzing trace with hash -2110179452, now seen corresponding path program 1 times [2021-11-07 14:04:07,827 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:04:07,827 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120171126] [2021-11-07 14:04:07,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:04:07,827 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:04:07,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:04:07,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 14:04:07,960 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:04:07,960 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120171126] [2021-11-07 14:04:07,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120171126] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:04:07,961 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:04:07,961 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 14:04:07,961 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163584867] [2021-11-07 14:04:07,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:04:07,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 14:04:07,962 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:04:07,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 14:04:07,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:04:07,962 INFO L87 Difference]: Start difference. First operand 38499 states and 54215 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 2 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:04:10,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:04:10,244 INFO L93 Difference]: Finished difference Result 38504 states and 54219 transitions. [2021-11-07 14:04:10,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 14:04:10,244 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 2 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-11-07 14:04:10,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:04:10,451 INFO L225 Difference]: With dead ends: 38504 [2021-11-07 14:04:10,452 INFO L226 Difference]: Without dead ends: 38502 [2021-11-07 14:04:10,464 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.69ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:04:10,466 INFO L933 BasicCegarLoop]: 15263 mSDtfsCounter, 13335 mSDsluCounter, 13312 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 328 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1274.79ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13335 SdHoareTripleChecker+Valid, 28575 SdHoareTripleChecker+Invalid, 987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 26.69ms SdHoareTripleChecker+Time, 328 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1705.11ms IncrementalHoareTripleChecker+Time [2021-11-07 14:04:10,467 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13335 Valid, 28575 Invalid, 987 Unknown, 0 Unchecked, 26.69ms Time], IncrementalHoareTripleChecker [328 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 1705.11ms Time] [2021-11-07 14:04:10,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38502 states. [2021-11-07 14:04:11,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38502 to 38500. [2021-11-07 14:04:11,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38500 states, 38255 states have (on average 1.4011240360737158) internal successors, (53600), 38279 states have internal predecessors, (53600), 160 states have call successors, (160), 80 states have call predecessors, (160), 80 states have return successors, (456), 148 states have call predecessors, (456), 160 states have call successors, (456) [2021-11-07 14:04:11,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38500 states to 38500 states and 54216 transitions. [2021-11-07 14:04:11,221 INFO L78 Accepts]: Start accepts. Automaton has 38500 states and 54216 transitions. Word has length 50 [2021-11-07 14:04:11,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:04:11,222 INFO L470 AbstractCegarLoop]: Abstraction has 38500 states and 54216 transitions. [2021-11-07 14:04:11,223 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 2 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:04:11,225 INFO L276 IsEmpty]: Start isEmpty. Operand 38500 states and 54216 transitions. [2021-11-07 14:04:11,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-07 14:04:11,228 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:04:11,228 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 14:04:11,228 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 14:04:11,228 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 14:04:11,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:04:11,229 INFO L85 PathProgramCache]: Analyzing trace with hash -991010012, now seen corresponding path program 1 times [2021-11-07 14:04:11,229 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:04:11,229 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188597650] [2021-11-07 14:04:11,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:04:11,233 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:04:11,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:04:11,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 14:04:11,338 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:04:11,339 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188597650] [2021-11-07 14:04:11,339 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188597650] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:04:11,339 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:04:11,339 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 14:04:11,339 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346752433] [2021-11-07 14:04:11,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:04:11,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 14:04:11,340 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:04:11,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 14:04:11,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:04:11,340 INFO L87 Difference]: Start difference. First operand 38500 states and 54216 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:04:12,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:04:12,006 INFO L93 Difference]: Finished difference Result 38500 states and 54216 transitions. [2021-11-07 14:04:12,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 14:04:12,007 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-11-07 14:04:12,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:04:12,077 INFO L225 Difference]: With dead ends: 38500 [2021-11-07 14:04:12,078 INFO L226 Difference]: Without dead ends: 38498 [2021-11-07 14:04:12,092 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.40ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:04:12,093 INFO L933 BasicCegarLoop]: 14329 mSDtfsCounter, 14281 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.08ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14281 SdHoareTripleChecker+Valid, 14329 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.90ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.10ms IncrementalHoareTripleChecker+Time [2021-11-07 14:04:12,093 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14281 Valid, 14329 Invalid, 1 Unknown, 0 Unchecked, 13.90ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 1.10ms Time] [2021-11-07 14:04:12,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38498 states. [2021-11-07 14:04:12,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38498 to 38498. [2021-11-07 14:04:12,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38498 states, 38254 states have (on average 1.4011083808229206) internal successors, (53598), 38277 states have internal predecessors, (53598), 160 states have call successors, (160), 80 states have call predecessors, (160), 80 states have return successors, (456), 148 states have call predecessors, (456), 160 states have call successors, (456) [2021-11-07 14:04:13,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38498 states to 38498 states and 54214 transitions. [2021-11-07 14:04:13,081 INFO L78 Accepts]: Start accepts. Automaton has 38498 states and 54214 transitions. Word has length 51 [2021-11-07 14:04:13,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:04:13,082 INFO L470 AbstractCegarLoop]: Abstraction has 38498 states and 54214 transitions. [2021-11-07 14:04:13,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:04:13,082 INFO L276 IsEmpty]: Start isEmpty. Operand 38498 states and 54214 transitions. [2021-11-07 14:04:13,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-07 14:04:13,086 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:04:13,086 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 14:04:13,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 14:04:13,087 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 14:04:13,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:04:13,087 INFO L85 PathProgramCache]: Analyzing trace with hash -656495730, now seen corresponding path program 1 times [2021-11-07 14:04:13,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:04:13,089 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157210543] [2021-11-07 14:04:13,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:04:13,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:04:13,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:04:13,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 14:04:13,194 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:04:13,194 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157210543] [2021-11-07 14:04:13,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157210543] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:04:13,194 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:04:13,195 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 14:04:13,195 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859158866] [2021-11-07 14:04:13,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:04:13,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 14:04:13,196 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:04:13,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 14:04:13,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:04:13,197 INFO L87 Difference]: Start difference. First operand 38498 states and 54214 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:04:13,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:04:13,738 INFO L93 Difference]: Finished difference Result 38498 states and 54214 transitions. [2021-11-07 14:04:13,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 14:04:13,738 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-11-07 14:04:13,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:04:13,807 INFO L225 Difference]: With dead ends: 38498 [2021-11-07 14:04:13,808 INFO L226 Difference]: Without dead ends: 33461 [2021-11-07 14:04:13,830 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.50ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:04:13,832 INFO L933 BasicCegarLoop]: 14328 mSDtfsCounter, 14278 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14278 SdHoareTripleChecker+Valid, 14328 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 29.93ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-07 14:04:13,832 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14278 Valid, 14328 Invalid, 0 Unknown, 0 Unchecked, 29.93ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-07 14:04:13,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33461 states. [2021-11-07 14:04:14,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33461 to 33461. [2021-11-07 14:04:14,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33461 states, 33218 states have (on average 1.394605334457222) internal successors, (46326), 33240 states have internal predecessors, (46326), 160 states have call successors, (160), 80 states have call predecessors, (160), 80 states have return successors, (456), 148 states have call predecessors, (456), 160 states have call successors, (456) [2021-11-07 14:04:14,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33461 states to 33461 states and 46942 transitions. [2021-11-07 14:04:14,595 INFO L78 Accepts]: Start accepts. Automaton has 33461 states and 46942 transitions. Word has length 52 [2021-11-07 14:04:14,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:04:14,596 INFO L470 AbstractCegarLoop]: Abstraction has 33461 states and 46942 transitions. [2021-11-07 14:04:14,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:04:14,596 INFO L276 IsEmpty]: Start isEmpty. Operand 33461 states and 46942 transitions. [2021-11-07 14:04:14,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-07 14:04:14,611 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:04:14,612 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] [2021-11-07 14:04:14,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 14:04:14,612 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 14:04:14,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:04:14,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1833350465, now seen corresponding path program 1 times [2021-11-07 14:04:14,613 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:04:14,613 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274121583] [2021-11-07 14:04:14,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:04:14,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:04:14,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:04:14,695 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 14:04:14,695 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:04:14,695 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274121583] [2021-11-07 14:04:14,695 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274121583] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:04:14,695 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:04:14,696 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 14:04:14,696 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748944464] [2021-11-07 14:04:14,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:04:14,696 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 14:04:14,696 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:04:14,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 14:04:14,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:04:14,697 INFO L87 Difference]: Start difference. First operand 33461 states and 46942 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:04:15,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:04:15,928 INFO L93 Difference]: Finished difference Result 80474 states and 113261 transitions. [2021-11-07 14:04:15,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 14:04:15,929 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-11-07 14:04:15,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:04:16,042 INFO L225 Difference]: With dead ends: 80474 [2021-11-07 14:04:16,043 INFO L226 Difference]: Without dead ends: 47041 [2021-11-07 14:04:16,092 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.45ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:04:16,092 INFO L933 BasicCegarLoop]: 14865 mSDtfsCounter, 12701 mSDsluCounter, 6629 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 59.52ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12701 SdHoareTripleChecker+Valid, 21494 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.26ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 69.01ms IncrementalHoareTripleChecker+Time [2021-11-07 14:04:16,093 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12701 Valid, 21494 Invalid, 24 Unknown, 0 Unchecked, 20.26ms Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 69.01ms Time] [2021-11-07 14:04:16,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47041 states. [2021-11-07 14:04:16,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47041 to 47023. [2021-11-07 14:04:17,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47023 states, 46540 states have (on average 1.3987107864202837) internal successors, (65096), 46582 states have internal predecessors, (65096), 320 states have call successors, (320), 160 states have call predecessors, (320), 160 states have return successors, (912), 296 states have call predecessors, (912), 320 states have call successors, (912) [2021-11-07 14:04:17,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47023 states to 47023 states and 66328 transitions. [2021-11-07 14:04:17,137 INFO L78 Accepts]: Start accepts. Automaton has 47023 states and 66328 transitions. Word has length 82 [2021-11-07 14:04:17,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:04:17,138 INFO L470 AbstractCegarLoop]: Abstraction has 47023 states and 66328 transitions. [2021-11-07 14:04:17,138 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:04:17,138 INFO L276 IsEmpty]: Start isEmpty. Operand 47023 states and 66328 transitions. [2021-11-07 14:04:17,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-11-07 14:04:17,162 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:04:17,162 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 14:04:17,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-07 14:04:17,163 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 14:04:17,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:04:17,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1956077323, now seen corresponding path program 1 times [2021-11-07 14:04:17,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:04:17,164 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119644708] [2021-11-07 14:04:17,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:04:17,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:04:17,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:04:17,272 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-07 14:04:17,273 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:04:17,273 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119644708] [2021-11-07 14:04:17,273 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119644708] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:04:17,273 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:04:17,273 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 14:04:17,273 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670378172] [2021-11-07 14:04:17,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:04:17,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 14:04:17,274 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:04:17,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 14:04:17,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 14:04:17,275 INFO L87 Difference]: Start difference. First operand 47023 states and 66328 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:04:19,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:04:19,027 INFO L93 Difference]: Finished difference Result 115072 states and 162015 transitions. [2021-11-07 14:04:19,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 14:04:19,028 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-11-07 14:04:19,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:04:19,206 INFO L225 Difference]: With dead ends: 115072 [2021-11-07 14:04:19,206 INFO L226 Difference]: Without dead ends: 68077 [2021-11-07 14:04:19,293 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.43ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 14:04:19,294 INFO L933 BasicCegarLoop]: 15092 mSDtfsCounter, 31237 mSDsluCounter, 14347 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 59.17ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 31237 SdHoareTripleChecker+Valid, 29439 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 42.27ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 68.24ms IncrementalHoareTripleChecker+Time [2021-11-07 14:04:19,294 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31237 Valid, 29439 Invalid, 35 Unknown, 0 Unchecked, 42.27ms Time], IncrementalHoareTripleChecker [14 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 68.24ms Time] [2021-11-07 14:04:19,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68077 states. [2021-11-07 14:04:20,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68077 to 47037. [2021-11-07 14:04:20,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47037 states, 46554 states have (on average 1.3985908837049448) internal successors, (65110), 46596 states have internal predecessors, (65110), 320 states have call successors, (320), 160 states have call predecessors, (320), 160 states have return successors, (912), 296 states have call predecessors, (912), 320 states have call successors, (912) [2021-11-07 14:04:20,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47037 states to 47037 states and 66342 transitions. [2021-11-07 14:04:20,781 INFO L78 Accepts]: Start accepts. Automaton has 47037 states and 66342 transitions. Word has length 109 [2021-11-07 14:04:20,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:04:20,782 INFO L470 AbstractCegarLoop]: Abstraction has 47037 states and 66342 transitions. [2021-11-07 14:04:20,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:04:20,782 INFO L276 IsEmpty]: Start isEmpty. Operand 47037 states and 66342 transitions. [2021-11-07 14:04:20,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-07 14:04:20,809 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:04:20,809 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 14:04:20,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-07 14:04:20,809 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 14:04:20,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:04:20,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1080330172, now seen corresponding path program 1 times [2021-11-07 14:04:20,810 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:04:20,810 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413893859] [2021-11-07 14:04:20,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:04:20,811 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:04:20,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:04:20,963 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-07 14:04:20,964 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:04:20,964 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413893859] [2021-11-07 14:04:20,964 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413893859] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:04:20,964 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:04:20,964 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 14:04:20,964 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795814978] [2021-11-07 14:04:20,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:04:20,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 14:04:20,965 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:04:20,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 14:04:20,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:04:20,965 INFO L87 Difference]: Start difference. First operand 47037 states and 66342 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:04:22,994 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:04:24,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:04:24,539 INFO L93 Difference]: Finished difference Result 108358 states and 153500 transitions. [2021-11-07 14:04:24,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 14:04:24,540 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-11-07 14:04:24,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:04:24,723 INFO L225 Difference]: With dead ends: 108358 [2021-11-07 14:04:24,723 INFO L226 Difference]: Without dead ends: 61349 [2021-11-07 14:04:24,837 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.95ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:04:24,838 INFO L933 BasicCegarLoop]: 16621 mSDtfsCounter, 10396 mSDsluCounter, 6666 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2040.28ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10396 SdHoareTripleChecker+Valid, 23287 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.01ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2157.45ms IncrementalHoareTripleChecker+Time [2021-11-07 14:04:24,838 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10396 Valid, 23287 Invalid, 15 Unknown, 0 Unchecked, 21.01ms Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 1 Unknown, 0 Unchecked, 2157.45ms Time] [2021-11-07 14:04:24,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61349 states. [2021-11-07 14:04:26,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61349 to 61349. [2021-11-07 14:04:26,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61349 states, 60386 states have (on average 1.4027754777597456) internal successors, (84708), 60468 states have internal predecessors, (84708), 640 states have call successors, (640), 320 states have call predecessors, (640), 320 states have return successors, (1824), 592 states have call predecessors, (1824), 640 states have call successors, (1824) [2021-11-07 14:04:26,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61349 states to 61349 states and 87172 transitions. [2021-11-07 14:04:26,763 INFO L78 Accepts]: Start accepts. Automaton has 61349 states and 87172 transitions. Word has length 113 [2021-11-07 14:04:26,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:04:26,763 INFO L470 AbstractCegarLoop]: Abstraction has 61349 states and 87172 transitions. [2021-11-07 14:04:26,763 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:04:26,764 INFO L276 IsEmpty]: Start isEmpty. Operand 61349 states and 87172 transitions. [2021-11-07 14:04:26,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-11-07 14:04:26,823 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:04:26,823 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 14:04:26,824 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-07 14:04:26,824 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 14:04:26,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:04:26,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1196318847, now seen corresponding path program 1 times [2021-11-07 14:04:26,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:04:26,825 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016170664] [2021-11-07 14:04:26,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:04:26,825 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:04:26,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:04:27,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-07 14:04:27,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:04:27,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-07 14:04:27,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:04:27,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-07 14:04:27,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:04:27,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-07 14:04:27,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:04:27,099 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 14:04:27,100 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:04:27,100 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016170664] [2021-11-07 14:04:27,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016170664] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:04:27,100 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:04:27,100 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 14:04:27,100 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878994016] [2021-11-07 14:04:27,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:04:27,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 14:04:27,101 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:04:27,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 14:04:27,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-07 14:04:27,101 INFO L87 Difference]: Start difference. First operand 61349 states and 87172 transitions. Second operand has 6 states, 6 states have (on average 20.833333333333332) internal successors, (125), 5 states have internal predecessors, (125), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-07 14:04:29,123 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:04:31,264 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []