./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-radio-wl128x-fm_drv.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5f08f0f0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-radio-wl128x-fm_drv.cil.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 34f21538f85eb9cdaa60d9a1e57757d7a04f90c8b459e1dcc8d118be409846cb --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 20:36:11,321 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 20:36:11,323 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 20:36:11,354 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 20:36:11,355 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 20:36:11,358 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 20:36:11,359 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 20:36:11,362 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 20:36:11,364 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 20:36:11,367 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 20:36:11,368 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 20:36:11,369 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 20:36:11,369 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 20:36:11,371 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 20:36:11,372 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 20:36:11,376 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 20:36:11,377 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 20:36:11,378 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 20:36:11,379 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 20:36:11,383 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 20:36:11,384 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 20:36:11,385 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 20:36:11,386 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 20:36:11,387 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 20:36:11,396 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 20:36:11,401 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 20:36:11,401 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 20:36:11,403 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 20:36:11,403 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 20:36:11,404 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 20:36:11,404 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 20:36:11,404 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 20:36:11,406 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 20:36:11,406 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 20:36:11,407 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 20:36:11,407 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 20:36:11,408 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 20:36:11,408 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 20:36:11,408 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 20:36:11,409 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 20:36:11,410 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 20:36:11,413 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 20:36:11,434 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 20:36:11,434 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 20:36:11,435 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 20:36:11,435 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 20:36:11,436 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 20:36:11,437 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 20:36:11,437 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 20:36:11,437 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 20:36:11,437 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 20:36:11,437 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 20:36:11,438 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 20:36:11,438 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 20:36:11,438 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 20:36:11,438 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 20:36:11,438 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 20:36:11,439 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 20:36:11,439 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 20:36:11,439 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 20:36:11,439 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 20:36:11,439 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 20:36:11,439 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 20:36:11,440 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 20:36:11,440 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 20:36:11,440 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 20:36:11,440 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 20:36:11,440 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 20:36:11,440 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 20:36:11,440 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 20:36:11,440 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 20:36:11,441 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 34f21538f85eb9cdaa60d9a1e57757d7a04f90c8b459e1dcc8d118be409846cb [2021-11-05 20:36:11,715 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 20:36:11,733 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 20:36:11,735 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 20:36:11,736 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 20:36:11,736 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 20:36:11,737 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-radio-wl128x-fm_drv.cil.i [2021-11-05 20:36:11,778 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7177fe016/1bc902e241db4ec0ab5cefbc86c097dd/FLAG95e58a9de [2021-11-05 20:36:12,445 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 20:36:12,446 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-radio-wl128x-fm_drv.cil.i [2021-11-05 20:36:12,484 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7177fe016/1bc902e241db4ec0ab5cefbc86c097dd/FLAG95e58a9de [2021-11-05 20:36:12,556 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7177fe016/1bc902e241db4ec0ab5cefbc86c097dd [2021-11-05 20:36:12,558 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 20:36:12,559 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 20:36:12,561 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 20:36:12,562 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 20:36:12,564 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 20:36:12,565 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 08:36:12" (1/1) ... [2021-11-05 20:36:12,566 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fd9e75d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:36:12, skipping insertion in model container [2021-11-05 20:36:12,566 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 08:36:12" (1/1) ... [2021-11-05 20:36:12,570 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 20:36:12,679 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 20:36:14,093 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-radio-wl128x-fm_drv.cil.i[325823,325836] [2021-11-05 20:36:14,096 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-radio-wl128x-fm_drv.cil.i[325992,326005] [2021-11-05 20:36:14,096 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-radio-wl128x-fm_drv.cil.i[326159,326172] [2021-11-05 20:36:14,096 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-radio-wl128x-fm_drv.cil.i[326327,326340] [2021-11-05 20:36:14,111 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 20:36:14,156 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 20:36:14,411 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-radio-wl128x-fm_drv.cil.i[325823,325836] [2021-11-05 20:36:14,412 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-radio-wl128x-fm_drv.cil.i[325992,326005] [2021-11-05 20:36:14,412 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-radio-wl128x-fm_drv.cil.i[326159,326172] [2021-11-05 20:36:14,412 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-radio-wl128x-fm_drv.cil.i[326327,326340] [2021-11-05 20:36:14,415 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 20:36:14,610 INFO L208 MainTranslator]: Completed translation [2021-11-05 20:36:14,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:36:14 WrapperNode [2021-11-05 20:36:14,611 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 20:36:14,612 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 20:36:14,612 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 20:36:14,612 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 20:36:14,616 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:36:14" (1/1) ... [2021-11-05 20:36:14,692 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:36:14" (1/1) ... [2021-11-05 20:36:17,553 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 20:36:17,555 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 20:36:17,555 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 20:36:17,555 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 20:36:17,561 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:36:14" (1/1) ... [2021-11-05 20:36:17,561 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:36:14" (1/1) ... [2021-11-05 20:36:18,209 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:36:14" (1/1) ... [2021-11-05 20:36:18,214 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:36:14" (1/1) ... [2021-11-05 20:36:19,731 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:36:14" (1/1) ... [2021-11-05 20:36:19,973 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:36:14" (1/1) ... [2021-11-05 20:36:20,225 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:36:14" (1/1) ... [2021-11-05 20:36:20,687 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 20:36:20,694 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 20:36:20,694 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 20:36:20,694 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 20:36:20,695 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:36:14" (1/1) ... [2021-11-05 20:36:20,699 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 20:36:20,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 20:36:20,715 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) [2021-11-05 20:36:20,735 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 [2021-11-05 20:36:20,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 20:36:20,766 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-05 20:36:20,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-05 20:36:20,766 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 20:36:20,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 20:36:20,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 20:36:20,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 20:36:20,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 20:36:20,766 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-05 20:36:20,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-05 20:36:20,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 20:36:20,766 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 20:36:20,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 20:36:20,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 20:36:20,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 20:37:33,554 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-05 20:37:33,554 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0; [2021-11-05 20:37:33,555 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-05 20:37:33,556 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-05 20:37:33,556 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-05 20:37:33,558 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-05 20:37:33,559 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-05 20:37:33,607 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 20:37:33,607 INFO L299 CfgBuilder]: Removed 20891 assume(true) statements. [2021-11-05 20:37:33,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 08:37:33 BoogieIcfgContainer [2021-11-05 20:37:33,623 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 20:37:33,624 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 20:37:33,624 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 20:37:33,626 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 20:37:33,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 08:36:12" (1/3) ... [2021-11-05 20:37:33,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45e0ab5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 08:37:33, skipping insertion in model container [2021-11-05 20:37:33,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:36:14" (2/3) ... [2021-11-05 20:37:33,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45e0ab5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 08:37:33, skipping insertion in model container [2021-11-05 20:37:33,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 08:37:33" (3/3) ... [2021-11-05 20:37:33,628 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-radio-wl128x-fm_drv.cil.i [2021-11-05 20:37:33,631 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 20:37:33,631 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 390 error locations. [2021-11-05 20:37:33,714 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 20:37:33,718 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 [2021-11-05 20:37:33,719 INFO L340 AbstractCegarLoop]: Starting to check reachability of 390 error locations. [2021-11-05 20:37:33,922 INFO L276 IsEmpty]: Start isEmpty. Operand has 21626 states, 21236 states have (on average 1.3931531361838387) internal successors, (29585), 21625 states have internal predecessors, (29585), 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) [2021-11-05 20:37:33,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-05 20:37:33,939 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:37:33,940 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:37:33,940 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 387 more)] === [2021-11-05 20:37:33,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:37:33,946 INFO L85 PathProgramCache]: Analyzing trace with hash -2049477516, now seen corresponding path program 1 times [2021-11-05 20:37:33,952 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:37:33,953 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134681239] [2021-11-05 20:37:33,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:37:33,954 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:37:34,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:37:34,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:37:34,733 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:37:34,734 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134681239] [2021-11-05 20:37:34,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134681239] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:37:34,738 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:37:34,738 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:37:34,739 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282405895] [2021-11-05 20:37:34,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:37:34,742 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:37:34,742 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:37:34,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:37:34,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:37:34,798 INFO L87 Difference]: Start difference. First operand has 21626 states, 21236 states have (on average 1.3931531361838387) internal successors, (29585), 21625 states have internal predecessors, (29585), 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) Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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) [2021-11-05 20:37:36,862 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:37:37,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:37:37,890 INFO L93 Difference]: Finished difference Result 64171 states and 87854 transitions. [2021-11-05 20:37:37,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:37:37,892 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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 80 [2021-11-05 20:37:37,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:37:38,060 INFO L225 Difference]: With dead ends: 64171 [2021-11-05 20:37:38,061 INFO L226 Difference]: Without dead ends: 39641 [2021-11-05 20:37:38,119 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.64ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:37:38,123 INFO L933 BasicCegarLoop]: 29182 mSDtfsCounter, 28736 mSDsluCounter, 28978 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2098.76ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 28736 SdHoareTripleChecker+Valid, 58160 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 104.47ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2216.56ms IncrementalHoareTripleChecker+Time [2021-11-05 20:37:38,124 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28736 Valid, 58160 Invalid, 54 Unknown, 0 Unchecked, 104.47ms Time], IncrementalHoareTripleChecker [11 Valid, 42 Invalid, 1 Unknown, 0 Unchecked, 2216.56ms Time] [2021-11-05 20:37:38,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39641 states. [2021-11-05 20:37:39,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39641 to 38915. [2021-11-05 20:37:39,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38915 states, 38525 states have (on average 1.328825438027255) internal successors, (51193), 38914 states have internal predecessors, (51193), 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) [2021-11-05 20:37:39,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38915 states to 38915 states and 51193 transitions. [2021-11-05 20:37:39,223 INFO L78 Accepts]: Start accepts. Automaton has 38915 states and 51193 transitions. Word has length 80 [2021-11-05 20:37:39,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:37:39,224 INFO L470 AbstractCegarLoop]: Abstraction has 38915 states and 51193 transitions. [2021-11-05 20:37:39,225 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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) [2021-11-05 20:37:39,225 INFO L276 IsEmpty]: Start isEmpty. Operand 38915 states and 51193 transitions. [2021-11-05 20:37:39,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-05 20:37:39,227 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:37:39,227 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:37:39,228 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 20:37:39,228 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr59ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 387 more)] === [2021-11-05 20:37:39,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:37:39,228 INFO L85 PathProgramCache]: Analyzing trace with hash -1456535030, now seen corresponding path program 1 times [2021-11-05 20:37:39,229 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:37:39,229 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436513156] [2021-11-05 20:37:39,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:37:39,229 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:37:39,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:37:39,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:37:39,678 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:37:39,679 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436513156] [2021-11-05 20:37:39,680 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436513156] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:37:39,681 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:37:39,681 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:37:39,683 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256681503] [2021-11-05 20:37:39,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:37:39,684 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:37:39,685 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:37:39,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:37:39,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:37:39,685 INFO L87 Difference]: Start difference. First operand 38915 states and 51193 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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) [2021-11-05 20:37:41,730 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:37:42,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:37:42,834 INFO L93 Difference]: Finished difference Result 96277 states and 126365 transitions. [2021-11-05 20:37:42,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:37:42,835 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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 84 [2021-11-05 20:37:42,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:37:42,959 INFO L225 Difference]: With dead ends: 96277 [2021-11-05 20:37:42,959 INFO L226 Difference]: Without dead ends: 57518 [2021-11-05 20:37:43,036 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.11ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:37:43,037 INFO L933 BasicCegarLoop]: 26020 mSDtfsCounter, 24982 mSDsluCounter, 26004 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2074.94ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 24982 SdHoareTripleChecker+Valid, 52024 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 41.96ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2194.57ms IncrementalHoareTripleChecker+Time [2021-11-05 20:37:43,038 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24982 Valid, 52024 Invalid, 33 Unknown, 0 Unchecked, 41.96ms Time], IncrementalHoareTripleChecker [7 Valid, 25 Invalid, 1 Unknown, 0 Unchecked, 2194.57ms Time] [2021-11-05 20:37:43,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57518 states. [2021-11-05 20:37:44,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57518 to 56676. [2021-11-05 20:37:44,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56676 states, 56286 states have (on average 1.3296912198415236) internal successors, (74843), 56675 states have internal predecessors, (74843), 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) [2021-11-05 20:37:44,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56676 states to 56676 states and 74843 transitions. [2021-11-05 20:37:44,285 INFO L78 Accepts]: Start accepts. Automaton has 56676 states and 74843 transitions. Word has length 84 [2021-11-05 20:37:44,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:37:44,288 INFO L470 AbstractCegarLoop]: Abstraction has 56676 states and 74843 transitions. [2021-11-05 20:37:44,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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) [2021-11-05 20:37:44,288 INFO L276 IsEmpty]: Start isEmpty. Operand 56676 states and 74843 transitions. [2021-11-05 20:37:44,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-05 20:37:44,289 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:37:44,289 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:37:44,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 20:37:44,290 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr71ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 387 more)] === [2021-11-05 20:37:44,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:37:44,290 INFO L85 PathProgramCache]: Analyzing trace with hash 774548603, now seen corresponding path program 1 times [2021-11-05 20:37:44,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:37:44,290 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488235483] [2021-11-05 20:37:44,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:37:44,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:37:44,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:37:44,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:37:44,481 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:37:44,481 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488235483] [2021-11-05 20:37:44,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488235483] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:37:44,481 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:37:44,481 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:37:44,481 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961589542] [2021-11-05 20:37:44,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:37:44,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:37:44,482 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:37:44,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:37:44,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:37:44,483 INFO L87 Difference]: Start difference. First operand 56676 states and 74843 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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) [2021-11-05 20:37:46,528 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:37:47,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:37:47,650 INFO L93 Difference]: Finished difference Result 104725 states and 138299 transitions. [2021-11-05 20:37:47,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:37:47,651 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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 86 [2021-11-05 20:37:47,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:37:47,751 INFO L225 Difference]: With dead ends: 104725 [2021-11-05 20:37:47,751 INFO L226 Difference]: Without dead ends: 48205 [2021-11-05 20:37:47,816 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.23ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:37:47,821 INFO L933 BasicCegarLoop]: 22251 mSDtfsCounter, 22071 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2045.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 22071 SdHoareTripleChecker+Valid, 22424 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.58ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2194.18ms IncrementalHoareTripleChecker+Time [2021-11-05 20:37:47,821 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22071 Valid, 22424 Invalid, 4 Unknown, 0 Unchecked, 17.58ms Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 2194.18ms Time] [2021-11-05 20:37:47,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48205 states. [2021-11-05 20:37:48,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48205 to 48205. [2021-11-05 20:37:48,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48205 states, 47867 states have (on average 1.3292038356278857) internal successors, (63625), 48204 states have internal predecessors, (63625), 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) [2021-11-05 20:37:48,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48205 states to 48205 states and 63625 transitions. [2021-11-05 20:37:48,827 INFO L78 Accepts]: Start accepts. Automaton has 48205 states and 63625 transitions. Word has length 86 [2021-11-05 20:37:48,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:37:48,827 INFO L470 AbstractCegarLoop]: Abstraction has 48205 states and 63625 transitions. [2021-11-05 20:37:48,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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) [2021-11-05 20:37:48,827 INFO L276 IsEmpty]: Start isEmpty. Operand 48205 states and 63625 transitions. [2021-11-05 20:37:48,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-05 20:37:48,830 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:37:48,830 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:37:48,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 20:37:48,830 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr123ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 387 more)] === [2021-11-05 20:37:48,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:37:48,831 INFO L85 PathProgramCache]: Analyzing trace with hash 951472750, now seen corresponding path program 1 times [2021-11-05 20:37:48,831 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:37:48,831 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789924663] [2021-11-05 20:37:48,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:37:48,831 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:37:48,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:37:49,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:37:49,005 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:37:49,005 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789924663] [2021-11-05 20:37:49,006 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789924663] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:37:49,006 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:37:49,006 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:37:49,006 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027393205] [2021-11-05 20:37:49,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:37:49,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:37:49,007 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:37:49,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:37:49,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:37:49,008 INFO L87 Difference]: Start difference. First operand 48205 states and 63625 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 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) [2021-11-05 20:37:51,052 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:37:52,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:37:52,334 INFO L93 Difference]: Finished difference Result 86950 states and 114511 transitions. [2021-11-05 20:37:52,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:37:52,334 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 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 101 [2021-11-05 20:37:52,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:37:52,451 INFO L225 Difference]: With dead ends: 86950 [2021-11-05 20:37:52,452 INFO L226 Difference]: Without dead ends: 38901 [2021-11-05 20:37:52,490 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.37ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:37:52,492 INFO L933 BasicCegarLoop]: 22241 mSDtfsCounter, 3407 mSDsluCounter, 22171 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2135.20ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3407 SdHoareTripleChecker+Valid, 44412 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.96ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2310.20ms IncrementalHoareTripleChecker+Time [2021-11-05 20:37:52,492 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3407 Valid, 44412 Invalid, 102 Unknown, 0 Unchecked, 21.96ms Time], IncrementalHoareTripleChecker [13 Valid, 88 Invalid, 1 Unknown, 0 Unchecked, 2310.20ms Time] [2021-11-05 20:37:52,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38901 states. [2021-11-05 20:37:53,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38901 to 38667. [2021-11-05 20:37:53,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38667 states, 38329 states have (on average 1.326358631845339) internal successors, (50838), 38666 states have internal predecessors, (50838), 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) [2021-11-05 20:37:53,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38667 states to 38667 states and 50838 transitions. [2021-11-05 20:37:53,151 INFO L78 Accepts]: Start accepts. Automaton has 38667 states and 50838 transitions. Word has length 101 [2021-11-05 20:37:53,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:37:53,152 INFO L470 AbstractCegarLoop]: Abstraction has 38667 states and 50838 transitions. [2021-11-05 20:37:53,152 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 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) [2021-11-05 20:37:53,152 INFO L276 IsEmpty]: Start isEmpty. Operand 38667 states and 50838 transitions. [2021-11-05 20:37:53,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-05 20:37:53,153 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:37:53,154 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] [2021-11-05 20:37:53,154 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-05 20:37:53,154 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 387 more)] === [2021-11-05 20:37:53,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:37:53,154 INFO L85 PathProgramCache]: Analyzing trace with hash -420140612, now seen corresponding path program 1 times [2021-11-05 20:37:53,155 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:37:53,155 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790823154] [2021-11-05 20:37:53,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:37:53,155 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:37:53,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:37:53,285 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:37:53,285 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:37:53,285 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790823154] [2021-11-05 20:37:53,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790823154] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:37:53,286 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:37:53,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:37:53,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481224935] [2021-11-05 20:37:53,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:37:53,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:37:53,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:37:53,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:37:53,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:37:53,289 INFO L87 Difference]: Start difference. First operand 38667 states and 50838 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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) [2021-11-05 20:37:55,333 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:37:56,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:37:56,885 INFO L93 Difference]: Finished difference Result 111625 states and 146933 transitions. [2021-11-05 20:37:56,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:37:56,885 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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 [2021-11-05 20:37:56,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:37:57,004 INFO L225 Difference]: With dead ends: 111625 [2021-11-05 20:37:57,004 INFO L226 Difference]: Without dead ends: 74781 [2021-11-05 20:37:57,050 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.12ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:37:57,051 INFO L933 BasicCegarLoop]: 43996 mSDtfsCounter, 21753 mSDsluCounter, 22215 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2075.55ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 21753 SdHoareTripleChecker+Valid, 66211 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 35.15ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2250.14ms IncrementalHoareTripleChecker+Time [2021-11-05 20:37:57,051 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21753 Valid, 66211 Invalid, 50 Unknown, 0 Unchecked, 35.15ms Time], IncrementalHoareTripleChecker [9 Valid, 40 Invalid, 1 Unknown, 0 Unchecked, 2250.14ms Time] [2021-11-05 20:37:57,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74781 states. [2021-11-05 20:37:58,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74781 to 74159. [2021-11-05 20:37:58,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74159 states, 73821 states have (on average 1.329269449072757) internal successors, (98128), 74158 states have internal predecessors, (98128), 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) [2021-11-05 20:37:58,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74159 states to 74159 states and 98128 transitions. [2021-11-05 20:37:58,430 INFO L78 Accepts]: Start accepts. Automaton has 74159 states and 98128 transitions. Word has length 113 [2021-11-05 20:37:58,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:37:58,431 INFO L470 AbstractCegarLoop]: Abstraction has 74159 states and 98128 transitions. [2021-11-05 20:37:58,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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) [2021-11-05 20:37:58,431 INFO L276 IsEmpty]: Start isEmpty. Operand 74159 states and 98128 transitions. [2021-11-05 20:37:58,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-05 20:37:58,433 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:37:58,433 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] [2021-11-05 20:37:58,433 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-05 20:37:58,433 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 387 more)] === [2021-11-05 20:37:58,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:37:58,434 INFO L85 PathProgramCache]: Analyzing trace with hash -1237789062, now seen corresponding path program 1 times [2021-11-05 20:37:58,434 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:37:58,434 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054216903] [2021-11-05 20:37:58,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:37:58,435 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:37:58,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:37:58,637 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:37:58,637 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:37:58,637 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054216903] [2021-11-05 20:37:58,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054216903] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:37:58,637 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:37:58,637 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:37:58,638 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369292596] [2021-11-05 20:37:58,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:37:58,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:37:58,638 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:37:58,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:37:58,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:37:58,639 INFO L87 Difference]: Start difference. First operand 74159 states and 98128 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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) [2021-11-05 20:38:00,683 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:38:02,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:38:02,756 INFO L93 Difference]: Finished difference Result 182613 states and 241521 transitions. [2021-11-05 20:38:02,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:38:02,757 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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 [2021-11-05 20:38:02,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:38:03,096 INFO L225 Difference]: With dead ends: 182613 [2021-11-05 20:38:03,096 INFO L226 Difference]: Without dead ends: 110277 [2021-11-05 20:38:03,227 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.54ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:38:03,227 INFO L933 BasicCegarLoop]: 43996 mSDtfsCounter, 21787 mSDsluCounter, 22182 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2079.91ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 21787 SdHoareTripleChecker+Valid, 66178 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 34.14ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2264.23ms IncrementalHoareTripleChecker+Time [2021-11-05 20:38:03,228 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21787 Valid, 66178 Invalid, 52 Unknown, 0 Unchecked, 34.14ms Time], IncrementalHoareTripleChecker [10 Valid, 41 Invalid, 1 Unknown, 0 Unchecked, 2264.23ms Time] [2021-11-05 20:38:03,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110277 states. [2021-11-05 20:38:05,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110277 to 109622. [2021-11-05 20:38:05,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109622 states, 109284 states have (on average 1.3303777314153948) internal successors, (145389), 109621 states have internal predecessors, (145389), 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) [2021-11-05 20:38:05,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109622 states to 109622 states and 145389 transitions. [2021-11-05 20:38:05,550 INFO L78 Accepts]: Start accepts. Automaton has 109622 states and 145389 transitions. Word has length 113 [2021-11-05 20:38:05,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:38:05,551 INFO L470 AbstractCegarLoop]: Abstraction has 109622 states and 145389 transitions. [2021-11-05 20:38:05,551 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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) [2021-11-05 20:38:05,552 INFO L276 IsEmpty]: Start isEmpty. Operand 109622 states and 145389 transitions. [2021-11-05 20:38:05,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-05 20:38:05,555 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:38:05,556 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:38:05,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-05 20:38:05,560 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 387 more)] === [2021-11-05 20:38:05,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:38:05,560 INFO L85 PathProgramCache]: Analyzing trace with hash 997639822, now seen corresponding path program 1 times [2021-11-05 20:38:05,560 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:38:05,560 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502289710] [2021-11-05 20:38:05,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:38:05,561 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:38:05,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:38:05,809 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-05 20:38:05,809 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:38:05,810 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502289710] [2021-11-05 20:38:05,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502289710] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:38:05,810 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:38:05,810 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:38:05,810 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384686082] [2021-11-05 20:38:05,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:38:05,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:38:05,811 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:38:05,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:38:05,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:38:05,811 INFO L87 Difference]: Start difference. First operand 109622 states and 145389 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 3 states have internal predecessors, (100), 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) [2021-11-05 20:38:07,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:38:07,751 INFO L93 Difference]: Finished difference Result 109622 states and 145389 transitions. [2021-11-05 20:38:07,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 20:38:07,752 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 3 states have internal predecessors, (100), 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 [2021-11-05 20:38:07,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:38:07,958 INFO L225 Difference]: With dead ends: 109622 [2021-11-05 20:38:07,959 INFO L226 Difference]: Without dead ends: 109616 [2021-11-05 20:38:08,000 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.99ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:38:08,001 INFO L933 BasicCegarLoop]: 22241 mSDtfsCounter, 22153 mSDsluCounter, 22172 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 59.68ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 22153 SdHoareTripleChecker+Valid, 44413 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 40.35ms SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 71.51ms IncrementalHoareTripleChecker+Time [2021-11-05 20:38:08,001 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22153 Valid, 44413 Invalid, 79 Unknown, 0 Unchecked, 40.35ms Time], IncrementalHoareTripleChecker [25 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 71.51ms Time] [2021-11-05 20:38:08,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109616 states. [2021-11-05 20:38:09,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109616 to 109616. [2021-11-05 20:38:10,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109616 states, 109281 states have (on average 1.3303593488346557) internal successors, (145383), 109615 states have internal predecessors, (145383), 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) [2021-11-05 20:38:10,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109616 states to 109616 states and 145383 transitions. [2021-11-05 20:38:10,329 INFO L78 Accepts]: Start accepts. Automaton has 109616 states and 145383 transitions. Word has length 113 [2021-11-05 20:38:10,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:38:10,329 INFO L470 AbstractCegarLoop]: Abstraction has 109616 states and 145383 transitions. [2021-11-05 20:38:10,330 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 3 states have internal predecessors, (100), 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) [2021-11-05 20:38:10,330 INFO L276 IsEmpty]: Start isEmpty. Operand 109616 states and 145383 transitions. [2021-11-05 20:38:10,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-05 20:38:10,332 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:38:10,333 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:38:10,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-05 20:38:10,333 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 387 more)] === [2021-11-05 20:38:10,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:38:10,334 INFO L85 PathProgramCache]: Analyzing trace with hash 954318385, now seen corresponding path program 1 times [2021-11-05 20:38:10,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:38:10,334 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861298361] [2021-11-05 20:38:10,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:38:10,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:38:10,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:38:10,604 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-05 20:38:10,604 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:38:10,604 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861298361] [2021-11-05 20:38:10,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861298361] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:38:10,605 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:38:10,606 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:38:10,606 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916689475] [2021-11-05 20:38:10,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:38:10,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:38:10,607 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:38:10,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:38:10,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:38:10,607 INFO L87 Difference]: Start difference. First operand 109616 states and 145383 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 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) [2021-11-05 20:38:12,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:38:12,439 INFO L93 Difference]: Finished difference Result 109616 states and 145383 transitions. [2021-11-05 20:38:12,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 20:38:12,440 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 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 115 [2021-11-05 20:38:12,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:38:12,663 INFO L225 Difference]: With dead ends: 109616 [2021-11-05 20:38:12,664 INFO L226 Difference]: Without dead ends: 109610 [2021-11-05 20:38:12,703 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.85ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:38:12,704 INFO L933 BasicCegarLoop]: 22235 mSDtfsCounter, 22142 mSDsluCounter, 22169 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 71.94ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 22142 SdHoareTripleChecker+Valid, 44404 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 37.14ms SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 348.77ms IncrementalHoareTripleChecker+Time [2021-11-05 20:38:12,704 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22142 Valid, 44404 Invalid, 79 Unknown, 0 Unchecked, 37.14ms Time], IncrementalHoareTripleChecker [28 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 348.77ms Time] [2021-11-05 20:38:12,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109610 states.