./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-usb-smsc95xx.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4d014703 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-usb-smsc95xx.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 0a0fd6bb20819f4c1984e3b3e8e83ec7b86578d28f1c3e6d8ae5f0c954457512 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-4d01470 [2021-11-03 00:55:51,940 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 00:55:51,942 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 00:55:51,999 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 00:55:51,999 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 00:55:52,002 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 00:55:52,003 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 00:55:52,006 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 00:55:52,007 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 00:55:52,011 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 00:55:52,012 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 00:55:52,013 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 00:55:52,013 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 00:55:52,016 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 00:55:52,017 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 00:55:52,020 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 00:55:52,022 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 00:55:52,023 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 00:55:52,024 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 00:55:52,025 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 00:55:52,026 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 00:55:52,029 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 00:55:52,030 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 00:55:52,031 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 00:55:52,036 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 00:55:52,037 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 00:55:52,037 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 00:55:52,038 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 00:55:52,039 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 00:55:52,039 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 00:55:52,039 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 00:55:52,040 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 00:55:52,041 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 00:55:52,042 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 00:55:52,043 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 00:55:52,043 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 00:55:52,044 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 00:55:52,044 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 00:55:52,044 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 00:55:52,044 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 00:55:52,045 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 00:55:52,046 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-03 00:55:52,078 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 00:55:52,079 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 00:55:52,079 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-03 00:55:52,079 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-03 00:55:52,080 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-03 00:55:52,080 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-03 00:55:52,080 INFO L138 SettingsManager]: * Use SBE=true [2021-11-03 00:55:52,081 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 00:55:52,081 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 00:55:52,081 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 00:55:52,082 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 00:55:52,082 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 00:55:52,082 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 00:55:52,082 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 00:55:52,082 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 00:55:52,082 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 00:55:52,082 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 00:55:52,083 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 00:55:52,083 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 00:55:52,083 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 00:55:52,083 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 00:55:52,083 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 00:55:52,083 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 00:55:52,084 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-03 00:55:52,084 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 00:55:52,084 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-03 00:55:52,084 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-03 00:55:52,084 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 00:55:52,084 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 00:55:52,084 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0a0fd6bb20819f4c1984e3b3e8e83ec7b86578d28f1c3e6d8ae5f0c954457512 [2021-11-03 00:55:52,284 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 00:55:52,308 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 00:55:52,310 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 00:55:52,311 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 00:55:52,312 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 00:55:52,313 INFO L432 ainManager$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-usb-smsc95xx.cil.i [2021-11-03 00:55:52,361 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96b360926/b9d5ca4c832949b2bbf855f70cb145cf/FLAG9d3e67f23 [2021-11-03 00:55:52,988 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 00:55:52,989 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-usb-smsc95xx.cil.i [2021-11-03 00:55:53,048 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96b360926/b9d5ca4c832949b2bbf855f70cb145cf/FLAG9d3e67f23 [2021-11-03 00:55:53,389 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96b360926/b9d5ca4c832949b2bbf855f70cb145cf [2021-11-03 00:55:53,390 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 00:55:53,392 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 00:55:53,392 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 00:55:53,393 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 00:55:53,395 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 00:55:53,395 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:55:53" (1/1) ... [2021-11-03 00:55:53,396 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9d3820c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:53, skipping insertion in model container [2021-11-03 00:55:53,396 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:55:53" (1/1) ... [2021-11-03 00:55:53,401 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 00:55:53,479 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 00:55:55,372 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-usb-smsc95xx.cil.i[348095,348108] [2021-11-03 00:55:55,374 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-usb-smsc95xx.cil.i[348264,348277] [2021-11-03 00:55:55,378 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-usb-smsc95xx.cil.i[348431,348444] [2021-11-03 00:55:55,379 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-usb-smsc95xx.cil.i[348599,348612] [2021-11-03 00:55:55,392 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 00:55:55,434 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 00:55:55,671 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-usb-smsc95xx.cil.i[348095,348108] [2021-11-03 00:55:55,672 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-usb-smsc95xx.cil.i[348264,348277] [2021-11-03 00:55:55,672 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-usb-smsc95xx.cil.i[348431,348444] [2021-11-03 00:55:55,673 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-usb-smsc95xx.cil.i[348599,348612] [2021-11-03 00:55:55,677 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 00:55:55,820 INFO L208 MainTranslator]: Completed translation [2021-11-03 00:55:55,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:55 WrapperNode [2021-11-03 00:55:55,820 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 00:55:55,821 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 00:55:55,821 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 00:55:55,821 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 00:55:55,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:55" (1/1) ... [2021-11-03 00:55:55,907 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:55" (1/1) ... [2021-11-03 00:55:56,950 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 00:55:56,951 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 00:55:56,951 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 00:55:56,951 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 00:55:56,957 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:55" (1/1) ... [2021-11-03 00:55:56,958 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:55" (1/1) ... [2021-11-03 00:55:57,116 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:55" (1/1) ... [2021-11-03 00:55:57,117 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:55" (1/1) ... [2021-11-03 00:55:57,664 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:55" (1/1) ... [2021-11-03 00:55:57,769 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:55" (1/1) ... [2021-11-03 00:55:57,857 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:55" (1/1) ... [2021-11-03 00:55:58,172 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 00:55:58,174 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 00:55:58,174 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 00:55:58,174 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 00:55:58,175 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:55" (1/1) ... [2021-11-03 00:55:58,179 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 00:55:58,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 00:55:58,198 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) [2021-11-03 00:55:58,218 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 [2021-11-03 00:55:58,228 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_write_cmd_nopm [2021-11-03 00:55:58,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 00:55:58,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-03 00:55:58,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-03 00:55:58,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-03 00:55:58,229 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_write_cmd [2021-11-03 00:55:58,229 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_read_cmd_nopm [2021-11-03 00:55:58,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 00:55:58,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 00:55:58,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 00:55:58,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 00:55:58,229 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-03 00:55:58,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-03 00:55:58,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 00:55:58,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 00:55:58,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 00:55:58,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-03 00:55:58,230 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_read_cmd [2021-11-03 00:55:58,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-03 00:56:07,776 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-03 00:56:07,777 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-03 00:56:07,777 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-03 00:56:07,778 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-03 00:56:07,779 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-03 00:56:07,780 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-03 00:56:07,824 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 00:56:07,825 INFO L299 CfgBuilder]: Removed 6065 assume(true) statements. [2021-11-03 00:56:07,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:56:07 BoogieIcfgContainer [2021-11-03 00:56:07,835 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 00:56:07,836 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 00:56:07,836 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 00:56:07,839 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 00:56:07,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 12:55:53" (1/3) ... [2021-11-03 00:56:07,840 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2239cb5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:56:07, skipping insertion in model container [2021-11-03 00:56:07,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:55" (2/3) ... [2021-11-03 00:56:07,840 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2239cb5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:56:07, skipping insertion in model container [2021-11-03 00:56:07,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:56:07" (3/3) ... [2021-11-03 00:56:07,841 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i [2021-11-03 00:56:07,845 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 00:56:07,845 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 70 error locations. [2021-11-03 00:56:07,905 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 00:56:07,913 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 [2021-11-03 00:56:07,914 INFO L340 AbstractCegarLoop]: Starting to check reachability of 70 error locations. [2021-11-03 00:56:08,010 INFO L276 IsEmpty]: Start isEmpty. Operand has 8717 states, 8647 states have (on average 1.456227593384989) internal successors, (12592), 8716 states have internal predecessors, (12592), 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) [2021-11-03 00:56:08,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-03 00:56:08,026 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:56:08,027 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] [2021-11-03 00:56:08,027 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 67 more)] === [2021-11-03 00:56:08,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:56:08,031 INFO L85 PathProgramCache]: Analyzing trace with hash 1169077711, now seen corresponding path program 1 times [2021-11-03 00:56:08,037 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:56:08,038 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11690502] [2021-11-03 00:56:08,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:56:08,038 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:56:08,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:56:08,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 00:56:08,685 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:56:08,686 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11690502] [2021-11-03 00:56:08,686 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11690502] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:56:08,686 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:56:08,687 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:56:08,688 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313022584] [2021-11-03 00:56:08,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 00:56:08,707 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:56:08,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 00:56:08,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:56:08,743 INFO L87 Difference]: Start difference. First operand has 8717 states, 8647 states have (on average 1.456227593384989) internal successors, (12592), 8716 states have internal predecessors, (12592), 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 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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) [2021-11-03 00:56:10,897 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:56:15,534 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:56:18,087 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:56:19,795 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:56:28,627 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:56:31,290 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:56:33,374 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:56:49,342 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:56:52,063 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:56:53,930 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:56:56,626 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:58:10,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:58:10,743 INFO L93 Difference]: Finished difference Result 25553 states and 37016 transitions. [2021-11-03 00:58:10,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 00:58:10,746 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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 72 [2021-11-03 00:58:10,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:58:10,824 INFO L225 Difference]: With dead ends: 25553 [2021-11-03 00:58:10,825 INFO L226 Difference]: Without dead ends: 16812 [2021-11-03 00:58:10,851 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.29ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:58:10,858 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 11655 mSDsluCounter, 12057 mSDsCounter, 0 mSdLazyCounter, 23943 mSolverCounterSat, 8 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 113422.09ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11655 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 23955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 188.65ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 23943 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 119679.00ms IncrementalHoareTripleChecker+Time [2021-11-03 00:58:10,859 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11655 Valid, 257 Invalid, 23955 Unknown, 0 Unchecked, 188.65ms Time], IncrementalHoareTripleChecker [8 Valid, 23943 Invalid, 4 Unknown, 0 Unchecked, 119679.00ms Time] [2021-11-03 00:58:10,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16812 states. [2021-11-03 00:58:11,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16812 to 16744. [2021-11-03 00:58:11,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16744 states, 16674 states have (on average 1.397385150533765) internal successors, (23300), 16743 states have internal predecessors, (23300), 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) [2021-11-03 00:58:11,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16744 states to 16744 states and 23300 transitions. [2021-11-03 00:58:11,279 INFO L78 Accepts]: Start accepts. Automaton has 16744 states and 23300 transitions. Word has length 72 [2021-11-03 00:58:11,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:58:11,281 INFO L470 AbstractCegarLoop]: Abstraction has 16744 states and 23300 transitions. [2021-11-03 00:58:11,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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) [2021-11-03 00:58:11,282 INFO L276 IsEmpty]: Start isEmpty. Operand 16744 states and 23300 transitions. [2021-11-03 00:58:11,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-03 00:58:11,287 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:58:11,288 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 00:58:11,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-03 00:58:11,288 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 67 more)] === [2021-11-03 00:58:11,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:58:11,290 INFO L85 PathProgramCache]: Analyzing trace with hash -246882127, now seen corresponding path program 1 times [2021-11-03 00:58:11,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:58:11,290 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157358104] [2021-11-03 00:58:11,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:58:11,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:58:11,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:58:11,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 00:58:11,577 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:58:11,577 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157358104] [2021-11-03 00:58:11,577 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157358104] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:58:11,577 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:58:11,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:58:11,578 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811237248] [2021-11-03 00:58:11,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 00:58:11,580 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:58:11,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 00:58:11,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:58:11,581 INFO L87 Difference]: Start difference. First operand 16744 states and 23300 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 00:58:13,628 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:58:18,455 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:58:19,990 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:58:28,800 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:58:32,253 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:58:44,291 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:58:47,106 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:58:50,064 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:58:52,838 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 [] [2021-11-03 01:00:13,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 01:00:13,356 INFO L93 Difference]: Finished difference Result 48807 states and 68025 transitions. [2021-11-03 01:00:13,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 01:00:13,357 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2021-11-03 01:00:13,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 01:00:13,470 INFO L225 Difference]: With dead ends: 48807 [2021-11-03 01:00:13,470 INFO L226 Difference]: Without dead ends: 32211 [2021-11-03 01:00:13,500 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.44ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 01:00:13,501 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 10897 mSDsluCounter, 11767 mSDsCounter, 0 mSdLazyCounter, 23706 mSolverCounterSat, 7 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 112889.17ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10897 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 23718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 168.76ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 23706 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 119473.20ms IncrementalHoareTripleChecker+Time [2021-11-03 01:00:13,501 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10897 Valid, 0 Invalid, 23718 Unknown, 0 Unchecked, 168.76ms Time], IncrementalHoareTripleChecker [7 Valid, 23706 Invalid, 5 Unknown, 0 Unchecked, 119473.20ms Time] [2021-11-03 01:00:13,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32211 states. [2021-11-03 01:00:14,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32211 to 31983. [2021-11-03 01:00:14,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31983 states, 31913 states have (on average 1.4003070848870367) internal successors, (44688), 31982 states have internal predecessors, (44688), 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) [2021-11-03 01:00:14,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31983 states to 31983 states and 44688 transitions. [2021-11-03 01:00:14,185 INFO L78 Accepts]: Start accepts. Automaton has 31983 states and 44688 transitions. Word has length 86 [2021-11-03 01:00:14,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 01:00:14,188 INFO L470 AbstractCegarLoop]: Abstraction has 31983 states and 44688 transitions. [2021-11-03 01:00:14,188 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 01:00:14,188 INFO L276 IsEmpty]: Start isEmpty. Operand 31983 states and 44688 transitions. [2021-11-03 01:00:14,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-03 01:00:14,192 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 01:00:14,193 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 01:00:14,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-03 01:00:14,194 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 67 more)] === [2021-11-03 01:00:14,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 01:00:14,194 INFO L85 PathProgramCache]: Analyzing trace with hash 37135963, now seen corresponding path program 1 times [2021-11-03 01:00:14,194 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 01:00:14,194 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412240924] [2021-11-03 01:00:14,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 01:00:14,195 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 01:00:14,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 01:00:14,490 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 01:00:14,490 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 01:00:14,491 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412240924] [2021-11-03 01:00:14,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412240924] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 01:00:14,491 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 01:00:14,491 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 01:00:14,491 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625591640] [2021-11-03 01:00:14,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 01:00:14,491 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 01:00:14,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 01:00:14,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 01:00:14,492 INFO L87 Difference]: Start difference. First operand 31983 states and 44688 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 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) [2021-11-03 01:00:16,553 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 [] [2021-11-03 01:00:21,605 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 01:00:23,637 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 01:00:25,303 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 01:00:27,568 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 01:00:41,565 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 01:01:06,791 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 01:01:10,081 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 01:01:13,410 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 01:01:16,734 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 [] [2021-11-03 01:03:21,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 01:03:21,270 INFO L93 Difference]: Finished difference Result 62521 states and 87339 transitions. [2021-11-03 01:03:21,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 01:03:21,271 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 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 104 [2021-11-03 01:03:21,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 01:03:21,359 INFO L225 Difference]: With dead ends: 62521 [2021-11-03 01:03:21,360 INFO L226 Difference]: Without dead ends: 46445 [2021-11-03 01:03:21,393 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.77ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 01:03:21,396 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 10505 mSDsluCounter, 11822 mSDsCounter, 0 mSdLazyCounter, 34204 mSolverCounterSat, 7 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 174764.19ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10505 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 34218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 212.93ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 34204 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 184160.86ms IncrementalHoareTripleChecker+Time [2021-11-03 01:03:21,398 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10505 Valid, 0 Invalid, 34218 Unknown, 0 Unchecked, 212.93ms Time], IncrementalHoareTripleChecker [7 Valid, 34204 Invalid, 7 Unknown, 0 Unchecked, 184160.86ms Time] [2021-11-03 01:03:21,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46445 states. [2021-11-03 01:03:22,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46445 to 46383. [2021-11-03 01:03:22,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46383 states, 46313 states have (on average 1.4009241465679183) internal successors, (64881), 46382 states have internal predecessors, (64881), 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) [2021-11-03 01:03:22,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46383 states to 46383 states and 64881 transitions. [2021-11-03 01:03:22,197 INFO L78 Accepts]: Start accepts. Automaton has 46383 states and 64881 transitions. Word has length 104 [2021-11-03 01:03:22,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 01:03:22,199 INFO L470 AbstractCegarLoop]: Abstraction has 46383 states and 64881 transitions. [2021-11-03 01:03:22,199 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 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) [2021-11-03 01:03:22,199 INFO L276 IsEmpty]: Start isEmpty. Operand 46383 states and 64881 transitions. [2021-11-03 01:03:22,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-03 01:03:22,205 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 01:03:22,206 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 01:03:22,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-03 01:03:22,206 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 67 more)] === [2021-11-03 01:03:22,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 01:03:22,207 INFO L85 PathProgramCache]: Analyzing trace with hash -1242727715, now seen corresponding path program 1 times [2021-11-03 01:03:22,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 01:03:22,207 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883139405] [2021-11-03 01:03:22,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 01:03:22,207 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 01:03:22,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 01:03:22,436 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 01:03:22,436 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 01:03:22,436 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883139405] [2021-11-03 01:03:22,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883139405] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 01:03:22,437 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 01:03:22,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 01:03:22,437 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82990012] [2021-11-03 01:03:22,437 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 01:03:22,437 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 01:03:22,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 01:03:22,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 01:03:22,438 INFO L87 Difference]: Start difference. First operand 46383 states and 64881 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 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) [2021-11-03 01:03:24,504 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 [] [2021-11-03 01:03:28,032 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 01:03:30,887 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 01:03:37,595 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 01:03:39,621 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 01:03:41,033 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 01:03:57,255 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 01:04:00,227 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 01:04:03,288 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 01:04:05,961 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 01:04:09,553 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 01:05:44,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 01:05:44,146 INFO L93 Difference]: Finished difference Result 100287 states and 140316 transitions. [2021-11-03 01:05:44,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 01:05:44,148 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 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 104 [2021-11-03 01:05:44,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 01:05:44,301 INFO L225 Difference]: With dead ends: 100287 [2021-11-03 01:05:44,301 INFO L226 Difference]: Without dead ends: 69811 [2021-11-03 01:05:44,353 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.50ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 01:05:44,357 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 11541 mSDsluCounter, 11756 mSDsCounter, 0 mSdLazyCounter, 24403 mSolverCounterSat, 9 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 130648.97ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11541 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 24417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 152.00ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 24403 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 139206.37ms IncrementalHoareTripleChecker+Time [2021-11-03 01:05:44,359 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11541 Valid, 0 Invalid, 24417 Unknown, 0 Unchecked, 152.00ms Time], IncrementalHoareTripleChecker [9 Valid, 24403 Invalid, 5 Unknown, 0 Unchecked, 139206.37ms Time] [2021-11-03 01:05:44,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69811 states. [2021-11-03 01:05:45,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69811 to 69743. [2021-11-03 01:05:45,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69743 states, 69673 states have (on average 1.4017338136724413) internal successors, (97663), 69742 states have internal predecessors, (97663), 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) [2021-11-03 01:05:45,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69743 states to 69743 states and 97663 transitions. [2021-11-03 01:05:45,449 INFO L78 Accepts]: Start accepts. Automaton has 69743 states and 97663 transitions. Word has length 104 [2021-11-03 01:05:45,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 01:05:45,449 INFO L470 AbstractCegarLoop]: Abstraction has 69743 states and 97663 transitions. [2021-11-03 01:05:45,449 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 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) [2021-11-03 01:05:45,449 INFO L276 IsEmpty]: Start isEmpty. Operand 69743 states and 97663 transitions. [2021-11-03 01:05:45,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-03 01:05:45,452 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 01:05:45,452 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 01:05:45,453 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-03 01:05:45,453 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 67 more)] === [2021-11-03 01:05:45,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 01:05:45,453 INFO L85 PathProgramCache]: Analyzing trace with hash 416925785, now seen corresponding path program 1 times [2021-11-03 01:05:45,454 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 01:05:45,454 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97741049] [2021-11-03 01:05:45,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 01:05:45,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 01:05:45,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 01:05:45,771 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-03 01:05:45,771 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 01:05:45,771 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97741049] [2021-11-03 01:05:45,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97741049] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 01:05:45,771 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 01:05:45,771 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 01:05:45,771 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372077236] [2021-11-03 01:05:45,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 01:05:45,772 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 01:05:45,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 01:05:45,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 01:05:45,772 INFO L87 Difference]: Start difference. First operand 69743 states and 97663 transitions. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 3 states have internal predecessors, (96), 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) [2021-11-03 01:05:47,835 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 01:05:53,219 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 01:05:55,470 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 01:05:57,194 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 01:05:58,624 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 01:05:59,841 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 01:06:26,709 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 01:06:29,731 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 01:06:32,816 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 01:06:35,900 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 01:06:59,490 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 01:07:03,157 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 01:07:05,506 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 01:08:54,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 01:08:54,151 INFO L93 Difference]: Finished difference Result 115963 states and 162365 transitions. [2021-11-03 01:08:54,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 01:08:54,152 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 3 states have internal predecessors, (96), 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 107 [2021-11-03 01:08:54,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 01:08:54,372 INFO L225 Difference]: With dead ends: 115963 [2021-11-03 01:08:54,372 INFO L226 Difference]: Without dead ends: 115957 [2021-11-03 01:08:54,409 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 78.90ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 01:08:54,409 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 11748 mSDsluCounter, 23437 mSDsCounter, 0 mSdLazyCounter, 35366 mSolverCounterSat, 67 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 174700.91ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11748 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 35439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 309.99ms SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 35366 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 185368.56ms IncrementalHoareTripleChecker+Time [2021-11-03 01:08:54,410 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11748 Valid, 0 Invalid, 35439 Unknown, 0 Unchecked, 309.99ms Time], IncrementalHoareTripleChecker [67 Valid, 35366 Invalid, 6 Unknown, 0 Unchecked, 185368.56ms Time] [2021-11-03 01:08:54,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115957 states. [2021-11-03 01:08:56,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115957 to 115757. [2021-11-03 01:08:56,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115757 states, 115687 states have (on average 1.4020244279824008) internal successors, (162196), 115756 states have internal predecessors, (162196), 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) [2021-11-03 01:08:56,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115757 states to 115757 states and 162196 transitions. [2021-11-03 01:08:56,613 INFO L78 Accepts]: Start accepts. Automaton has 115757 states and 162196 transitions. Word has length 107 [2021-11-03 01:08:56,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 01:08:56,613 INFO L470 AbstractCegarLoop]: Abstraction has 115757 states and 162196 transitions. [2021-11-03 01:08:56,613 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 3 states have internal predecessors, (96), 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) [2021-11-03 01:08:56,614 INFO L276 IsEmpty]: Start isEmpty. Operand 115757 states and 162196 transitions. [2021-11-03 01:08:56,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-11-03 01:08:56,617 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 01:08:56,617 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 01:08:56,618 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-03 01:08:56,618 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 67 more)] === [2021-11-03 01:08:56,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 01:08:56,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1233876444, now seen corresponding path program 1 times [2021-11-03 01:08:56,618 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 01:08:56,619 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466609157] [2021-11-03 01:08:56,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 01:08:56,619 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 01:08:56,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 01:08:57,064 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-03 01:08:57,064 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 01:08:57,065 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466609157] [2021-11-03 01:08:57,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466609157] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 01:08:57,065 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 01:08:57,065 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 01:08:57,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68060326] [2021-11-03 01:08:57,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 01:08:57,065 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 01:08:57,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 01:08:57,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 01:08:57,066 INFO L87 Difference]: Start difference. First operand 115757 states and 162196 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 states have internal predecessors, (98), 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) [2021-11-03 01:08:59,130 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 [] [2021-11-03 01:09:02,797 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 01:09:04,783 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 01:09:07,624 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 01:09:23,960 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 01:09:27,202 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 01:09:42,592 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 01:09:45,879 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 01:09:49,338 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 01:09:52,738 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 [] Killed by 15