./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-net-ethernet-atheros-atl1e-atl1e.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c36dfa3b 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-net-ethernet-atheros-atl1e-atl1e.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 6757464a5622bb83d03b39d9677b81f434099fef913b81074103632b3c898f25 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-c36dfa3 [2021-11-04 10:14:15,957 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-04 10:14:15,960 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-04 10:14:16,029 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-04 10:14:16,030 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-04 10:14:16,031 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-04 10:14:16,032 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-04 10:14:16,033 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-04 10:14:16,034 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-04 10:14:16,035 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-04 10:14:16,036 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-04 10:14:16,037 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-04 10:14:16,037 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-04 10:14:16,038 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-04 10:14:16,039 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-04 10:14:16,040 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-04 10:14:16,041 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-04 10:14:16,042 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-04 10:14:16,043 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-04 10:14:16,045 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-04 10:14:16,046 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-04 10:14:16,051 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-04 10:14:16,053 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-04 10:14:16,054 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-04 10:14:16,060 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-04 10:14:16,063 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-04 10:14:16,064 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-04 10:14:16,064 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-04 10:14:16,065 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-04 10:14:16,066 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-04 10:14:16,067 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-04 10:14:16,067 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-04 10:14:16,068 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-04 10:14:16,069 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-04 10:14:16,070 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-04 10:14:16,071 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-04 10:14:16,071 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-04 10:14:16,072 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-04 10:14:16,072 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-04 10:14:16,072 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-04 10:14:16,073 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-04 10:14:16,074 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-04 10:14:16,099 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-04 10:14:16,101 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-04 10:14:16,101 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-04 10:14:16,102 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-04 10:14:16,103 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-04 10:14:16,103 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-04 10:14:16,103 INFO L138 SettingsManager]: * Use SBE=true [2021-11-04 10:14:16,103 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-04 10:14:16,103 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-04 10:14:16,104 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-04 10:14:16,104 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-04 10:14:16,104 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-04 10:14:16,105 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-04 10:14:16,105 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-04 10:14:16,105 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-04 10:14:16,105 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-04 10:14:16,105 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-04 10:14:16,106 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-04 10:14:16,106 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-04 10:14:16,106 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 10:14:16,106 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-04 10:14:16,106 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-04 10:14:16,106 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-04 10:14:16,107 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-04 10:14:16,107 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-04 10:14:16,107 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-04 10:14:16,107 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-04 10:14:16,107 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-04 10:14:16,107 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-04 10:14:16,108 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6757464a5622bb83d03b39d9677b81f434099fef913b81074103632b3c898f25 [2021-11-04 10:14:16,317 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-04 10:14:16,341 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-04 10:14:16,344 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-04 10:14:16,345 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-04 10:14:16,346 INFO L275 PluginConnector]: CDTParser initialized [2021-11-04 10:14:16,353 INFO L432 ainManager$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-net-ethernet-atheros-atl1e-atl1e.cil.i [2021-11-04 10:14:16,411 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/830c0e111/4c63166f8f104ca6b7892245f48027d6/FLAGff62c4c3c [2021-11-04 10:14:17,202 INFO L306 CDTParser]: Found 1 translation units. [2021-11-04 10:14:17,203 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-net-ethernet-atheros-atl1e-atl1e.cil.i [2021-11-04 10:14:17,267 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/830c0e111/4c63166f8f104ca6b7892245f48027d6/FLAGff62c4c3c [2021-11-04 10:14:17,381 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/830c0e111/4c63166f8f104ca6b7892245f48027d6 [2021-11-04 10:14:17,382 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-04 10:14:17,384 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-04 10:14:17,387 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-04 10:14:17,387 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-04 10:14:17,390 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-04 10:14:17,390 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 10:14:17" (1/1) ... [2021-11-04 10:14:17,391 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4293d244 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:14:17, skipping insertion in model container [2021-11-04 10:14:17,392 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 10:14:17" (1/1) ... [2021-11-04 10:14:17,397 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-04 10:14:17,534 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-04 10:14:20,656 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-net-ethernet-atheros-atl1e-atl1e.cil.i[463113,463126] [2021-11-04 10:14:20,659 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-net-ethernet-atheros-atl1e-atl1e.cil.i[463282,463295] [2021-11-04 10:14:20,660 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-net-ethernet-atheros-atl1e-atl1e.cil.i[463449,463462] [2021-11-04 10:14:20,661 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-net-ethernet-atheros-atl1e-atl1e.cil.i[463617,463630] [2021-11-04 10:14:20,686 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 10:14:20,734 INFO L203 MainTranslator]: Completed pre-run [2021-11-04 10:14:21,108 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-net-ethernet-atheros-atl1e-atl1e.cil.i[463113,463126] [2021-11-04 10:14:21,109 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-net-ethernet-atheros-atl1e-atl1e.cil.i[463282,463295] [2021-11-04 10:14:21,109 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-net-ethernet-atheros-atl1e-atl1e.cil.i[463449,463462] [2021-11-04 10:14:21,110 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-net-ethernet-atheros-atl1e-atl1e.cil.i[463617,463630] [2021-11-04 10:14:21,119 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 10:14:21,335 INFO L208 MainTranslator]: Completed translation [2021-11-04 10:14:21,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:14:21 WrapperNode [2021-11-04 10:14:21,335 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-04 10:14:21,337 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-04 10:14:21,337 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-04 10:14:21,337 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-04 10:14:21,342 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:14:21" (1/1) ... [2021-11-04 10:14:21,460 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:14:21" (1/1) ... [2021-11-04 10:14:22,578 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-04 10:14:22,579 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-04 10:14:22,579 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-04 10:14:22,579 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-04 10:14:22,586 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:14:21" (1/1) ... [2021-11-04 10:14:22,599 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:14:21" (1/1) ... [2021-11-04 10:14:22,982 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:14:21" (1/1) ... [2021-11-04 10:14:22,983 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:14:21" (1/1) ... [2021-11-04 10:14:23,647 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:14:21" (1/1) ... [2021-11-04 10:14:23,780 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:14:21" (1/1) ... [2021-11-04 10:14:23,855 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:14:21" (1/1) ... [2021-11-04 10:14:24,011 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-04 10:14:24,012 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-04 10:14:24,012 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-04 10:14:24,012 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-04 10:14:24,013 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:14:21" (1/1) ... [2021-11-04 10:14:24,019 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 10:14:24,027 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 10:14:24,038 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) [2021-11-04 10:14:24,048 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 [2021-11-04 10:14:24,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-04 10:14:24,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-04 10:14:24,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-04 10:14:24,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-04 10:14:24,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-04 10:14:24,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-04 10:14:24,076 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-04 10:14:24,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-04 10:14:24,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-04 10:14:24,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-04 10:14:24,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-04 10:14:24,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-04 10:14:24,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-04 10:14:24,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-04 10:14:24,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-04 10:14:24,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-04 10:14:32,096 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-04 10:14:32,096 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-04 10:14:32,097 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-04 10:14:32,097 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-04 10:14:32,098 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-04 10:14:32,099 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-04 10:14:32,149 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-04 10:14:32,149 INFO L299 CfgBuilder]: Removed 8190 assume(true) statements. [2021-11-04 10:14:32,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 10:14:32 BoogieIcfgContainer [2021-11-04 10:14:32,159 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-04 10:14:32,162 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-04 10:14:32,162 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-04 10:14:32,165 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-04 10:14:32,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.11 10:14:17" (1/3) ... [2021-11-04 10:14:32,166 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@534f921e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 10:14:32, skipping insertion in model container [2021-11-04 10:14:32,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:14:21" (2/3) ... [2021-11-04 10:14:32,166 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@534f921e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 10:14:32, skipping insertion in model container [2021-11-04 10:14:32,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 10:14:32" (3/3) ... [2021-11-04 10:14:32,168 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i [2021-11-04 10:14:32,172 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-04 10:14:32,172 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 64 error locations. [2021-11-04 10:14:32,254 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-04 10:14:32,260 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 [2021-11-04 10:14:32,261 INFO L340 AbstractCegarLoop]: Starting to check reachability of 64 error locations. [2021-11-04 10:14:32,543 INFO L276 IsEmpty]: Start isEmpty. Operand has 7809 states, 7745 states have (on average 1.3404777275661717) internal successors, (10382), 7808 states have internal predecessors, (10382), 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) [2021-11-04 10:14:32,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-04 10:14:32,553 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:14:32,554 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] [2021-11-04 10:14:32,554 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr62ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 61 more)] === [2021-11-04 10:14:32,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:14:32,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1237294292, now seen corresponding path program 1 times [2021-11-04 10:14:32,569 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:14:32,570 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233003485] [2021-11-04 10:14:32,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:14:32,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:14:32,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:14:33,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 10:14:33,169 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:14:33,170 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233003485] [2021-11-04 10:14:33,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233003485] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:14:33,170 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:14:33,171 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:14:33,172 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895949218] [2021-11-04 10:14:33,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:14:33,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 10:14:33,176 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:14:33,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 10:14:33,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:14:33,210 INFO L87 Difference]: Start difference. First operand has 7809 states, 7745 states have (on average 1.3404777275661717) internal successors, (10382), 7808 states have internal predecessors, (10382), 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 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2021-11-04 10:14:34,543 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:14:36,166 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:14:43,979 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:14:56,992 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:15:01,204 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:15:09,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:15:09,694 INFO L93 Difference]: Finished difference Result 20769 states and 27598 transitions. [2021-11-04 10:15:09,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 10:15:09,696 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 59 [2021-11-04 10:15:09,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:15:09,760 INFO L225 Difference]: With dead ends: 20769 [2021-11-04 10:15:09,760 INFO L226 Difference]: Without dead ends: 12847 [2021-11-04 10:15:09,779 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.20ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:15:09,783 INFO L933 BasicCegarLoop]: 142 mSDtfsCounter, 9976 mSDsluCounter, 7151 mSDsCounter, 0 mSdLazyCounter, 17139 mSolverCounterSat, 21 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31805.94ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9976 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 17161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 53.59ms SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 17139 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35447.42ms IncrementalHoareTripleChecker+Time [2021-11-04 10:15:09,783 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9976 Valid, 279 Invalid, 17161 Unknown, 0 Unchecked, 53.59ms Time], IncrementalHoareTripleChecker [21 Valid, 17139 Invalid, 1 Unknown, 0 Unchecked, 35447.42ms Time] [2021-11-04 10:15:09,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12847 states. [2021-11-04 10:15:10,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12847 to 12287. [2021-11-04 10:15:10,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12287 states, 12223 states have (on average 1.314161826065614) internal successors, (16063), 12286 states have internal predecessors, (16063), 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) [2021-11-04 10:15:10,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12287 states to 12287 states and 16063 transitions. [2021-11-04 10:15:10,166 INFO L78 Accepts]: Start accepts. Automaton has 12287 states and 16063 transitions. Word has length 59 [2021-11-04 10:15:10,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:15:10,168 INFO L470 AbstractCegarLoop]: Abstraction has 12287 states and 16063 transitions. [2021-11-04 10:15:10,169 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2021-11-04 10:15:10,170 INFO L276 IsEmpty]: Start isEmpty. Operand 12287 states and 16063 transitions. [2021-11-04 10:15:10,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-04 10:15:10,178 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:15:10,178 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] [2021-11-04 10:15:10,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-04 10:15:10,179 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 61 more)] === [2021-11-04 10:15:10,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:15:10,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1476927092, now seen corresponding path program 1 times [2021-11-04 10:15:10,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:15:10,181 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710671757] [2021-11-04 10:15:10,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:15:10,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:15:10,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:15:10,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 10:15:10,461 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:15:10,463 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710671757] [2021-11-04 10:15:10,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710671757] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:15:10,463 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:15:10,464 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:15:10,464 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227782134] [2021-11-04 10:15:10,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:15:10,465 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 10:15:10,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:15:10,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 10:15:10,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:15:10,467 INFO L87 Difference]: Start difference. First operand 12287 states and 16063 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2021-11-04 10:15:11,640 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:15:13,813 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:15:17,979 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:15:43,594 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:15:53,342 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 [] [2021-11-04 10:15:59,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:15:59,273 INFO L93 Difference]: Finished difference Result 36247 states and 47518 transitions. [2021-11-04 10:15:59,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 10:15:59,273 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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 60 [2021-11-04 10:15:59,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:15:59,344 INFO L225 Difference]: With dead ends: 36247 [2021-11-04 10:15:59,344 INFO L226 Difference]: Without dead ends: 24076 [2021-11-04 10:15:59,371 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.72ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:15:59,373 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 9534 mSDsluCounter, 9913 mSDsCounter, 0 mSdLazyCounter, 19890 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42646.02ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9534 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 19899 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 46.17ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 19890 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47697.86ms IncrementalHoareTripleChecker+Time [2021-11-04 10:15:59,373 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9534 Valid, 0 Invalid, 19899 Unknown, 0 Unchecked, 46.17ms Time], IncrementalHoareTripleChecker [6 Valid, 19890 Invalid, 3 Unknown, 0 Unchecked, 47697.86ms Time] [2021-11-04 10:15:59,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24076 states. [2021-11-04 10:15:59,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24076 to 24036. [2021-11-04 10:15:59,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24036 states, 23972 states have (on average 1.3159936592691472) internal successors, (31547), 24035 states have internal predecessors, (31547), 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) [2021-11-04 10:15:59,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24036 states to 24036 states and 31547 transitions. [2021-11-04 10:15:59,955 INFO L78 Accepts]: Start accepts. Automaton has 24036 states and 31547 transitions. Word has length 60 [2021-11-04 10:15:59,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:15:59,956 INFO L470 AbstractCegarLoop]: Abstraction has 24036 states and 31547 transitions. [2021-11-04 10:15:59,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2021-11-04 10:15:59,956 INFO L276 IsEmpty]: Start isEmpty. Operand 24036 states and 31547 transitions. [2021-11-04 10:15:59,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-04 10:15:59,957 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:15:59,957 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] [2021-11-04 10:15:59,958 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-04 10:15:59,958 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 61 more)] === [2021-11-04 10:15:59,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:15:59,959 INFO L85 PathProgramCache]: Analyzing trace with hash -2090903688, now seen corresponding path program 1 times [2021-11-04 10:15:59,959 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:15:59,960 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818767823] [2021-11-04 10:15:59,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:15:59,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:16:00,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:16:00,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 10:16:00,180 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:16:00,181 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818767823] [2021-11-04 10:16:00,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818767823] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:16:00,181 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:16:00,181 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:16:00,181 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444200257] [2021-11-04 10:16:00,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:16:00,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 10:16:00,182 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:16:00,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 10:16:00,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:16:00,183 INFO L87 Difference]: Start difference. First operand 24036 states and 31547 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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) [2021-11-04 10:16:01,533 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:16:03,316 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:16:05,730 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:16:24,776 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:16:28,301 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:16:43,079 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:16:54,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:16:54,538 INFO L93 Difference]: Finished difference Result 70524 states and 92637 transitions. [2021-11-04 10:16:54,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 10:16:54,539 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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 62 [2021-11-04 10:16:54,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:16:54,656 INFO L225 Difference]: With dead ends: 70524 [2021-11-04 10:16:54,657 INFO L226 Difference]: Without dead ends: 46604 [2021-11-04 10:16:54,710 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.32ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:16:54,714 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 9555 mSDsluCounter, 9555 mSDsCounter, 0 mSdLazyCounter, 19543 mSolverCounterSat, 18 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46975.20ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9555 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 19562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 54.39ms SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 19543 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 52899.86ms IncrementalHoareTripleChecker+Time [2021-11-04 10:16:54,715 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9555 Valid, 0 Invalid, 19562 Unknown, 0 Unchecked, 54.39ms Time], IncrementalHoareTripleChecker [18 Valid, 19543 Invalid, 1 Unknown, 0 Unchecked, 52899.86ms Time] [2021-11-04 10:16:54,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46604 states. [2021-11-04 10:16:55,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46604 to 45760. [2021-11-04 10:16:55,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45760 states, 45696 states have (on average 1.3184304971988796) internal successors, (60247), 45759 states have internal predecessors, (60247), 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) [2021-11-04 10:16:56,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45760 states to 45760 states and 60247 transitions. [2021-11-04 10:16:56,013 INFO L78 Accepts]: Start accepts. Automaton has 45760 states and 60247 transitions. Word has length 62 [2021-11-04 10:16:56,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:16:56,014 INFO L470 AbstractCegarLoop]: Abstraction has 45760 states and 60247 transitions. [2021-11-04 10:16:56,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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) [2021-11-04 10:16:56,014 INFO L276 IsEmpty]: Start isEmpty. Operand 45760 states and 60247 transitions. [2021-11-04 10:16:56,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-04 10:16:56,017 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:16:56,017 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-04 10:16:56,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-04 10:16:56,018 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr62ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 61 more)] === [2021-11-04 10:16:56,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:16:56,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1136047947, now seen corresponding path program 1 times [2021-11-04 10:16:56,019 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:16:56,020 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941400941] [2021-11-04 10:16:56,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:16:56,020 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:16:56,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:16:56,223 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 10:16:56,224 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:16:56,224 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941400941] [2021-11-04 10:16:56,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941400941] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:16:56,224 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:16:56,224 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:16:56,225 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275148244] [2021-11-04 10:16:56,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:16:56,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 10:16:56,225 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:16:56,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 10:16:56,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:16:56,226 INFO L87 Difference]: Start difference. First operand 45760 states and 60247 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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) [2021-11-04 10:16:57,589 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:16:59,772 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:17:02,837 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:17:11,384 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:17:24,635 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:17:53,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:17:53,933 INFO L93 Difference]: Finished difference Result 130320 states and 171417 transitions. [2021-11-04 10:17:53,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 10:17:53,933 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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 74 [2021-11-04 10:17:53,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:17:54,124 INFO L225 Difference]: With dead ends: 130320 [2021-11-04 10:17:54,124 INFO L226 Difference]: Without dead ends: 84676 [2021-11-04 10:17:54,231 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.98ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:17:54,234 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 8641 mSDsluCounter, 9944 mSDsCounter, 0 mSdLazyCounter, 19975 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48570.94ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8641 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 19982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 57.67ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 19975 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 55765.17ms IncrementalHoareTripleChecker+Time [2021-11-04 10:17:54,235 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8641 Valid, 0 Invalid, 19982 Unknown, 0 Unchecked, 57.67ms Time], IncrementalHoareTripleChecker [6 Valid, 19975 Invalid, 1 Unknown, 0 Unchecked, 55765.17ms Time] [2021-11-04 10:17:54,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84676 states. [2021-11-04 10:17:56,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84676 to 83502. [2021-11-04 10:17:56,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83502 states, 83438 states have (on average 1.3151921186989142) internal successors, (109737), 83501 states have internal predecessors, (109737), 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) [2021-11-04 10:17:56,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83502 states to 83502 states and 109737 transitions. [2021-11-04 10:17:56,529 INFO L78 Accepts]: Start accepts. Automaton has 83502 states and 109737 transitions. Word has length 74 [2021-11-04 10:17:56,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:17:56,529 INFO L470 AbstractCegarLoop]: Abstraction has 83502 states and 109737 transitions. [2021-11-04 10:17:56,530 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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) [2021-11-04 10:17:56,530 INFO L276 IsEmpty]: Start isEmpty. Operand 83502 states and 109737 transitions. [2021-11-04 10:17:56,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-04 10:17:56,536 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:17:56,537 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] [2021-11-04 10:17:56,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-04 10:17:56,537 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 61 more)] === [2021-11-04 10:17:56,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:17:56,538 INFO L85 PathProgramCache]: Analyzing trace with hash -471736201, now seen corresponding path program 1 times [2021-11-04 10:17:56,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:17:56,538 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982705103] [2021-11-04 10:17:56,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:17:56,538 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:17:56,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:17:56,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 10:17:56,716 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:17:56,716 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982705103] [2021-11-04 10:17:56,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982705103] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:17:56,721 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:17:56,721 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:17:56,722 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105043946] [2021-11-04 10:17:56,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:17:56,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 10:17:56,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:17:56,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 10:17:56,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:17:56,724 INFO L87 Difference]: Start difference. First operand 83502 states and 109737 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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) [2021-11-04 10:17:58,804 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:18:04,049 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:18:16,587 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:18:17,644 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:18:20,998 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:18:43,221 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:19:01,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:19:01,696 INFO L93 Difference]: Finished difference Result 220506 states and 290113 transitions. [2021-11-04 10:19:01,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 10:19:01,697 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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 78 [2021-11-04 10:19:01,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:19:02,087 INFO L225 Difference]: With dead ends: 220506 [2021-11-04 10:19:02,087 INFO L226 Difference]: Without dead ends: 137120 [2021-11-04 10:19:02,212 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.61ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:19:02,213 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 6521 mSDsluCounter, 9746 mSDsCounter, 0 mSdLazyCounter, 19790 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 53645.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6521 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 19799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 58.24ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 19790 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 61716.15ms IncrementalHoareTripleChecker+Time [2021-11-04 10:19:02,215 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6521 Valid, 0 Invalid, 19799 Unknown, 0 Unchecked, 58.24ms Time], IncrementalHoareTripleChecker [7 Valid, 19790 Invalid, 2 Unknown, 0 Unchecked, 61716.15ms Time] [2021-11-04 10:19:02,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137120 states. [2021-11-04 10:19:04,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137120 to 135934. [2021-11-04 10:19:04,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135934 states, 135870 states have (on average 1.317295944652977) internal successors, (178981), 135933 states have internal predecessors, (178981), 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) [2021-11-04 10:19:05,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135934 states to 135934 states and 178981 transitions. [2021-11-04 10:19:05,214 INFO L78 Accepts]: Start accepts. Automaton has 135934 states and 178981 transitions. Word has length 78 [2021-11-04 10:19:05,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:19:05,214 INFO L470 AbstractCegarLoop]: Abstraction has 135934 states and 178981 transitions. [2021-11-04 10:19:05,214 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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) [2021-11-04 10:19:05,215 INFO L276 IsEmpty]: Start isEmpty. Operand 135934 states and 178981 transitions. [2021-11-04 10:19:05,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-04 10:19:05,217 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:19:05,217 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] [2021-11-04 10:19:05,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-04 10:19:05,217 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 61 more)] === [2021-11-04 10:19:05,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:19:05,218 INFO L85 PathProgramCache]: Analyzing trace with hash 431453269, now seen corresponding path program 1 times [2021-11-04 10:19:05,218 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:19:05,218 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967606593] [2021-11-04 10:19:05,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:19:05,218 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:19:05,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:19:05,442 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 10:19:05,443 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:19:05,443 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967606593] [2021-11-04 10:19:05,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967606593] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:19:05,443 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:19:05,443 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:19:05,444 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398950341] [2021-11-04 10:19:05,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:19:05,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 10:19:05,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:19:05,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 10:19:05,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:19:05,445 INFO L87 Difference]: Start difference. First operand 135934 states and 178981 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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) [2021-11-04 10:19:07,532 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:19:33,196 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:19:36,941 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:19:38,984 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:19:56,383 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:20:13,622 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:20:33,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:20:33,426 INFO L93 Difference]: Finished difference Result 265312 states and 349176 transitions. [2021-11-04 10:20:33,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 10:20:33,427 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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 89 [2021-11-04 10:20:33,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:20:34,002 INFO L225 Difference]: With dead ends: 265312 [2021-11-04 10:20:34,002 INFO L226 Difference]: Without dead ends: 196804 [2021-11-04 10:20:34,134 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.87ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:20:34,135 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 8470 mSDsluCounter, 9871 mSDsCounter, 0 mSdLazyCounter, 28255 mSolverCounterSat, 6 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 71805.54ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8470 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 28265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 81.89ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 28255 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 83790.66ms IncrementalHoareTripleChecker+Time [2021-11-04 10:20:34,135 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8470 Valid, 0 Invalid, 28265 Unknown, 0 Unchecked, 81.89ms Time], IncrementalHoareTripleChecker [6 Valid, 28255 Invalid, 4 Unknown, 0 Unchecked, 83790.66ms Time] [2021-11-04 10:20:34,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196804 states. [2021-11-04 10:20:37,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196804 to 195739. [2021-11-04 10:20:37,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195739 states, 195675 states have (on average 1.3159780247859971) internal successors, (257504), 195738 states have internal predecessors, (257504), 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) [2021-11-04 10:20:38,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195739 states to 195739 states and 257504 transitions. [2021-11-04 10:20:38,636 INFO L78 Accepts]: Start accepts. Automaton has 195739 states and 257504 transitions. Word has length 89 [2021-11-04 10:20:38,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:20:38,636 INFO L470 AbstractCegarLoop]: Abstraction has 195739 states and 257504 transitions. [2021-11-04 10:20:38,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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) [2021-11-04 10:20:38,636 INFO L276 IsEmpty]: Start isEmpty. Operand 195739 states and 257504 transitions. [2021-11-04 10:20:38,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-04 10:20:38,639 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:20:38,639 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] [2021-11-04 10:20:38,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-04 10:20:38,640 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 61 more)] === [2021-11-04 10:20:38,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:20:38,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1711316947, now seen corresponding path program 1 times [2021-11-04 10:20:38,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:20:38,641 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071284561] [2021-11-04 10:20:38,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:20:38,641 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:20:38,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:20:38,841 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 10:20:38,841 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:20:38,842 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071284561] [2021-11-04 10:20:38,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071284561] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:20:38,842 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:20:38,842 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:20:38,842 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562132322] [2021-11-04 10:20:38,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:20:38,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 10:20:38,843 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:20:38,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 10:20:38,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:20:38,844 INFO L87 Difference]: Start difference. First operand 195739 states and 257504 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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) [2021-11-04 10:20:40,722 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:20:42,979 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:20:49,826 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:21:10,812 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:21:15,018 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:21:17,079 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:21:35,158 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:21:53,954 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:22:19,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:22:19,581 INFO L93 Difference]: Finished difference Result 390994 states and 514462 transitions. [2021-11-04 10:22:19,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 10:22:19,584 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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 89 [2021-11-04 10:22:19,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:22:20,204 INFO L225 Difference]: With dead ends: 390994 [2021-11-04 10:22:20,204 INFO L226 Difference]: Without dead ends: 262681 [2021-11-04 10:22:20,650 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.24ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:22:20,652 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 9448 mSDsluCounter, 9931 mSDsCounter, 0 mSdLazyCounter, 29353 mSolverCounterSat, 5 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 80842.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9448 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 29363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 88.54ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29353 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 94968.02ms IncrementalHoareTripleChecker+Time [2021-11-04 10:22:20,652 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9448 Valid, 0 Invalid, 29363 Unknown, 0 Unchecked, 88.54ms Time], IncrementalHoareTripleChecker [5 Valid, 29353 Invalid, 5 Unknown, 0 Unchecked, 94968.02ms Time] [2021-11-04 10:22:20,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262681 states. [2021-11-04 10:22:25,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262681 to 262601. [2021-11-04 10:22:26,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262601 states, 262537 states have (on average 1.316523004376526) internal successors, (345636), 262600 states have internal predecessors, (345636), 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) [2021-11-04 10:22:26,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262601 states to 262601 states and 345636 transitions. [2021-11-04 10:22:26,892 INFO L78 Accepts]: Start accepts. Automaton has 262601 states and 345636 transitions. Word has length 89 [2021-11-04 10:22:26,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:22:26,892 INFO L470 AbstractCegarLoop]: Abstraction has 262601 states and 345636 transitions. [2021-11-04 10:22:26,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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) [2021-11-04 10:22:26,892 INFO L276 IsEmpty]: Start isEmpty. Operand 262601 states and 345636 transitions. [2021-11-04 10:22:26,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-04 10:22:26,894 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:22:26,894 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-04 10:22:26,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-04 10:22:26,895 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 61 more)] === [2021-11-04 10:22:26,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:22:26,895 INFO L85 PathProgramCache]: Analyzing trace with hash -2026697823, now seen corresponding path program 1 times [2021-11-04 10:22:26,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:22:26,896 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278198759] [2021-11-04 10:22:26,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:22:26,896 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:22:27,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:22:27,584 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-04 10:22:27,584 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:22:27,584 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278198759] [2021-11-04 10:22:27,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278198759] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:22:27,585 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:22:27,585 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:22:27,585 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047532758] [2021-11-04 10:22:27,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:22:27,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 10:22:27,588 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:22:27,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 10:22:27,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 10:22:27,589 INFO L87 Difference]: Start difference. First operand 262601 states and 345636 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 3 states have internal predecessors, (81), 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) [2021-11-04 10:22:29,673 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:22:54,443 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:22:58,084 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:23:00,152 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:23:38,781 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:23:53,148 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:23:55,214 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:24:25,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:24:25,440 INFO L93 Difference]: Finished difference Result 457360 states and 601914 transitions. [2021-11-04 10:24:25,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-04 10:24:25,440 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 3 states have internal predecessors, (81), 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 90 [2021-11-04 10:24:25,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:24:26,813 INFO L225 Difference]: With dead ends: 457360 [2021-11-04 10:24:26,813 INFO L226 Difference]: Without dead ends: 457354 [2021-11-04 10:24:26,986 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 31.13ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 10:24:26,987 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 9812 mSDsluCounter, 19642 mSDsCounter, 0 mSdLazyCounter, 29695 mSolverCounterSat, 91 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 90587.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9812 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 29792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 144.43ms SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 29695 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 109765.58ms IncrementalHoareTripleChecker+Time [2021-11-04 10:24:26,987 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9812 Valid, 0 Invalid, 29792 Unknown, 0 Unchecked, 144.43ms Time], IncrementalHoareTripleChecker [91 Valid, 29695 Invalid, 6 Unknown, 0 Unchecked, 109765.58ms Time] [2021-11-04 10:24:27,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457354 states.