./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-stmicro-stmmac-stmmac.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-usb-dev_drivers-net-ethernet-stmicro-stmmac-stmmac.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 22220d7d2391b6973f693fd73ea6ad5e547e8b6be8ceeaf0b83ac6f26119702f --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-4d01470 [2021-11-03 01:16:38,652 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 01:16:38,654 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 01:16:38,684 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 01:16:38,685 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 01:16:38,687 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 01:16:38,689 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 01:16:38,693 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 01:16:38,696 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 01:16:38,700 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 01:16:38,701 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 01:16:38,702 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 01:16:38,702 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 01:16:38,704 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 01:16:38,706 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 01:16:38,709 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 01:16:38,710 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 01:16:38,710 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 01:16:38,714 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 01:16:38,718 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 01:16:38,719 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 01:16:38,720 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 01:16:38,721 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 01:16:38,722 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 01:16:38,727 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 01:16:38,728 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 01:16:38,728 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 01:16:38,729 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 01:16:38,730 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 01:16:38,730 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 01:16:38,731 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 01:16:38,732 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 01:16:38,733 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 01:16:38,734 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 01:16:38,735 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 01:16:38,735 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 01:16:38,735 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 01:16:38,735 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 01:16:38,736 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 01:16:38,737 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 01:16:38,737 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 01:16:38,738 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-03 01:16:38,761 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 01:16:38,762 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 01:16:38,762 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-03 01:16:38,762 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-03 01:16:38,763 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-03 01:16:38,763 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-03 01:16:38,763 INFO L138 SettingsManager]: * Use SBE=true [2021-11-03 01:16:38,763 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 01:16:38,763 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 01:16:38,764 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 01:16:38,764 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 01:16:38,764 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 01:16:38,764 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 01:16:38,764 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 01:16:38,764 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 01:16:38,765 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 01:16:38,765 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 01:16:38,765 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 01:16:38,765 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 01:16:38,765 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 01:16:38,765 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 01:16:38,766 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 01:16:38,766 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 01:16:38,766 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-03 01:16:38,766 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 01:16:38,766 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-03 01:16:38,767 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-03 01:16:38,767 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 01:16:38,768 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 01:16:38,768 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22220d7d2391b6973f693fd73ea6ad5e547e8b6be8ceeaf0b83ac6f26119702f [2021-11-03 01:16:38,959 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 01:16:38,978 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 01:16:38,980 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 01:16:38,981 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 01:16:38,983 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 01:16:38,984 INFO L432 ainManager$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-usb-dev_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i [2021-11-03 01:16:39,024 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/057cde5a1/dd13953434824423b7883232178b9eb7/FLAG60a68a4da [2021-11-03 01:16:39,816 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 01:16:39,816 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i [2021-11-03 01:16:39,883 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/057cde5a1/dd13953434824423b7883232178b9eb7/FLAG60a68a4da [2021-11-03 01:16:40,298 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/057cde5a1/dd13953434824423b7883232178b9eb7 [2021-11-03 01:16:40,301 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 01:16:40,302 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 01:16:40,303 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 01:16:40,303 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 01:16:40,306 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 01:16:40,307 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:16:40" (1/1) ... [2021-11-03 01:16:40,308 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3373c1a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:16:40, skipping insertion in model container [2021-11-03 01:16:40,308 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:16:40" (1/1) ... [2021-11-03 01:16:40,313 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 01:16:40,510 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 01:16:50,823 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-usb-dev_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i[839999,840012] [2021-11-03 01:16:50,825 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-usb-dev_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i[840146,840159] [2021-11-03 01:16:50,826 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-usb-dev_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i[840285,840298] [2021-11-03 01:16:50,826 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-usb-dev_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i[840443,840456] [2021-11-03 01:16:50,870 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 01:16:51,010 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 01:16:51,517 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-usb-dev_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i[839999,840012] [2021-11-03 01:16:51,518 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-usb-dev_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i[840146,840159] [2021-11-03 01:16:51,519 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-usb-dev_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i[840285,840298] [2021-11-03 01:16:51,519 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-usb-dev_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i[840443,840456] [2021-11-03 01:16:51,529 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 01:16:52,180 INFO L208 MainTranslator]: Completed translation [2021-11-03 01:16:52,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:16:52 WrapperNode [2021-11-03 01:16:52,180 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 01:16:52,182 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 01:16:52,183 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 01:16:52,183 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 01:16:52,188 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:16:52" (1/1) ... [2021-11-03 01:16:52,410 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:16:52" (1/1) ... [2021-11-03 01:16:53,821 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 01:16:53,823 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 01:16:53,823 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 01:16:53,823 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 01:16:53,832 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:16:52" (1/1) ... [2021-11-03 01:16:53,833 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:16:52" (1/1) ... [2021-11-03 01:16:54,167 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:16:52" (1/1) ... [2021-11-03 01:16:54,168 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:16:52" (1/1) ... [2021-11-03 01:16:55,331 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:16:52" (1/1) ... [2021-11-03 01:16:55,503 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:16:52" (1/1) ... [2021-11-03 01:16:55,801 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:16:52" (1/1) ... [2021-11-03 01:16:56,178 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 01:16:56,180 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 01:16:56,180 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 01:16:56,180 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 01:16:56,181 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:16:52" (1/1) ... [2021-11-03 01:16:56,187 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 01:16:56,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 01:16:56,213 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 01:16:56,227 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 01:16:56,250 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_clean_desc3___0 [2021-11-03 01:16:56,251 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_clean_desc3___0 [2021-11-03 01:16:56,251 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_probe [2021-11-03 01:16:56,251 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_probe [2021-11-03 01:16:56,251 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_poll_controller [2021-11-03 01:16:56,251 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_poll_controller [2021-11-03 01:16:56,251 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_suspend [2021-11-03 01:16:56,252 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_suspend [2021-11-03 01:16:56,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-03 01:16:56,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 01:16:56,252 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_tx_skbufs [2021-11-03 01:16:56,252 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_tx_skbufs [2021-11-03 01:16:56,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 01:16:56,252 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-03 01:16:56,252 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_suspend [2021-11-03 01:16:56,253 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_suspend [2021-11-03 01:16:56,253 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_interrupt [2021-11-03 01:16:56,253 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_interrupt [2021-11-03 01:16:56,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 01:16:56,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 01:16:56,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-03 01:16:56,253 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-03 01:16:56,253 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_ethtool_stats [2021-11-03 01:16:56,254 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_ethtool_stats [2021-11-03 01:16:56,254 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_init_rx_buffers [2021-11-03 01:16:56,254 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_init_rx_buffers [2021-11-03 01:16:56,254 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_hw_setup [2021-11-03 01:16:56,254 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_hw_setup [2021-11-03 01:16:56,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 01:16:56,254 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2021-11-03 01:16:56,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2021-11-03 01:16:56,255 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 01:16:56,255 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_release [2021-11-03 01:16:56,255 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_release [2021-11-03 01:16:56,255 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_tx_timeout [2021-11-03 01:16:56,256 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_tx_timeout [2021-11-03 01:16:56,256 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_hw_init [2021-11-03 01:16:56,256 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_hw_init [2021-11-03 01:16:56,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-03 01:16:56,256 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_disable_eee_mode [2021-11-03 01:16:56,256 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_disable_eee_mode [2021-11-03 01:16:56,257 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pci_remove [2021-11-03 01:16:56,257 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pci_remove [2021-11-03 01:16:56,257 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_remove [2021-11-03 01:16:56,257 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_remove [2021-11-03 01:16:56,257 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_dma_interrupt [2021-11-03 01:16:56,257 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_dma_interrupt [2021-11-03 01:16:56,258 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_resume [2021-11-03 01:16:56,258 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_resume [2021-11-03 01:16:56,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 01:16:56,258 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_open [2021-11-03 01:16:56,258 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_open [2021-11-03 01:16:56,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-03 01:16:56,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-03 01:16:56,259 INFO L130 BoogieDeclarations]: Found specification of procedure init_dma_desc_rings [2021-11-03 01:16:56,260 INFO L138 BoogieDeclarations]: Found implementation of procedure init_dma_desc_rings [2021-11-03 01:16:56,260 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_hw_features [2021-11-03 01:16:56,260 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_hw_features [2021-11-03 01:16:56,260 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pci_probe [2021-11-03 01:16:56,260 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pci_probe [2021-11-03 01:16:56,261 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_dvr_probe [2021-11-03 01:16:56,261 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_dvr_probe [2021-11-03 01:16:56,261 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_resume [2021-11-03 01:16:56,261 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_resume [2021-11-03 01:16:56,261 INFO L130 BoogieDeclarations]: Found specification of procedure free_dma_desc_resources [2021-11-03 01:16:56,261 INFO L138 BoogieDeclarations]: Found implementation of procedure free_dma_desc_resources [2021-11-03 01:16:56,262 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_mdio_reset [2021-11-03 01:16:56,262 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_mdio_reset [2021-11-03 01:16:56,262 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-03 01:16:56,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-03 01:16:56,262 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ethtool_op_set_eee [2021-11-03 01:16:56,262 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_op_set_eee [2021-11-03 01:16:56,262 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-03 01:16:56,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-03 01:16:56,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-03 01:16:56,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 01:16:56,263 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_disable_dma_irq [2021-11-03 01:16:56,263 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_disable_dma_irq [2021-11-03 01:16:56,263 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_dvr_remove [2021-11-03 01:16:56,263 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_dvr_remove [2021-11-03 01:16:56,263 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_tx_err [2021-11-03 01:16:56,264 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_tx_err [2021-11-03 01:16:56,264 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ethtool_getsettings [2021-11-03 01:16:56,264 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_getsettings [2021-11-03 01:16:56,264 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-03 01:16:56,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-03 01:16:56,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-03 01:16:56,265 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-03 01:16:56,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-03 01:16:56,265 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pci_resume [2021-11-03 01:16:56,265 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pci_resume [2021-11-03 01:18:15,651 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_6_switch_break: ldv_switch_6_#res := 0; [2021-11-03 01:18:15,652 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-03 01:18:15,652 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0; [2021-11-03 01:18:15,652 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#3: ldv_switch_2_#res := 0; [2021-11-03 01:18:15,652 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-03 01:18:15,653 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_6_switch_break#4: ldv_switch_6_#res := 0; [2021-11-03 01:18:15,653 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_6_switch_break#3: ldv_switch_6_#res := 0; [2021-11-03 01:18:15,653 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_6_switch_break#2: ldv_switch_6_#res := 0; [2021-11-03 01:18:15,653 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_5_switch_break#2: ldv_switch_5_#res := 0; [2021-11-03 01:18:15,653 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_4_switch_break#2: ldv_switch_4_#res := 0; [2021-11-03 01:18:15,653 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_4_switch_break#3: ldv_switch_4_#res := 0; [2021-11-03 01:18:15,653 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_5_switch_break: ldv_switch_5_#res := 0; [2021-11-03 01:18:15,654 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_8_switch_break#2: ldv_switch_8_#res := 0; [2021-11-03 01:18:15,654 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res := 0; [2021-11-03 01:18:15,654 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#4: ldv_switch_0_#res := 0; [2021-11-03 01:18:15,654 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-03 01:18:15,654 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break#2: ldv_switch_3_#res := 0; [2021-11-03 01:18:15,655 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-03 01:18:15,656 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_4_switch_break: ldv_switch_4_#res := 0; [2021-11-03 01:18:15,656 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_7_switch_break: ldv_switch_7_#res := 0; [2021-11-03 01:18:15,657 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break: ldv_switch_3_#res := 0; [2021-11-03 01:18:15,657 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_9_switch_break: ldv_switch_9_#res := 0; [2021-11-03 01:18:15,657 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_8_switch_break: ldv_switch_8_#res := 0; [2021-11-03 01:18:15,658 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-03 01:18:15,658 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-03 01:18:15,725 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 01:18:15,725 INFO L299 CfgBuilder]: Removed 10579 assume(true) statements. [2021-11-03 01:18:15,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:18:15 BoogieIcfgContainer [2021-11-03 01:18:15,739 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 01:18:15,742 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 01:18:15,742 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 01:18:15,745 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 01:18:15,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:16:40" (1/3) ... [2021-11-03 01:18:15,747 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55b56c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:18:15, skipping insertion in model container [2021-11-03 01:18:15,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:16:52" (2/3) ... [2021-11-03 01:18:15,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55b56c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:18:15, skipping insertion in model container [2021-11-03 01:18:15,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:18:15" (3/3) ... [2021-11-03 01:18:15,756 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i [2021-11-03 01:18:15,760 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 01:18:15,761 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-03 01:18:15,837 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 01:18:15,845 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 01:18:15,845 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-03 01:18:15,966 INFO L276 IsEmpty]: Start isEmpty. Operand has 10930 states, 10753 states have (on average 1.3876127592299823) internal successors, (14921), 10767 states have internal predecessors, (14921), 134 states have call successors, (134), 37 states have call predecessors, (134), 37 states have return successors, (134), 132 states have call predecessors, (134), 134 states have call successors, (134) [2021-11-03 01:18:15,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-11-03 01:18:15,989 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 01:18:15,990 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:18:15,990 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 01:18:15,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 01:18:15,995 INFO L85 PathProgramCache]: Analyzing trace with hash 1811077279, now seen corresponding path program 1 times [2021-11-03 01:18:16,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 01:18:16,004 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315931712] [2021-11-03 01:18:16,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 01:18:16,005 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 01:18:17,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 01:18:17,700 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 01:18:17,700 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 01:18:17,701 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315931712] [2021-11-03 01:18:17,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315931712] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 01:18:17,701 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 01:18:17,701 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 01:18:17,702 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538072312] [2021-11-03 01:18:17,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 01:18:17,706 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 01:18:17,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 01:18:17,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 01:18:17,787 INFO L87 Difference]: Start difference. First operand has 10930 states, 10753 states have (on average 1.3876127592299823) internal successors, (14921), 10767 states have internal predecessors, (14921), 134 states have call successors, (134), 37 states have call predecessors, (134), 37 states have return successors, (134), 132 states have call predecessors, (134), 134 states have call successors, (134) Second operand has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 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 01:18:20,212 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.40s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 01:21:11,508 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 01:21:31,577 WARN L515 Checker$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 01:21:52,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 01:21:52,417 INFO L93 Difference]: Finished difference Result 31004 states and 43509 transitions. [2021-11-03 01:21:52,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 01:21:52,423 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 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 254 [2021-11-03 01:21:52,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 01:21:52,553 INFO L225 Difference]: With dead ends: 31004 [2021-11-03 01:21:52,554 INFO L226 Difference]: Without dead ends: 20284 [2021-11-03 01:21:52,626 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.48ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 01:21:52,632 INFO L933 BasicCegarLoop]: 789 mSDtfsCounter, 13916 mSDsluCounter, 15037 mSDsCounter, 0 mSdLazyCounter, 28891 mSolverCounterSat, 17 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 200461.90ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13919 SdHoareTripleChecker+Valid, 1443 SdHoareTripleChecker+Invalid, 28911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 305.63ms SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 28891 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 211238.62ms IncrementalHoareTripleChecker+Time [2021-11-03 01:21:52,637 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13919 Valid, 1443 Invalid, 28911 Unknown, 0 Unchecked, 305.63ms Time], IncrementalHoareTripleChecker [17 Valid, 28891 Invalid, 3 Unknown, 0 Unchecked, 211238.62ms Time] [2021-11-03 01:21:52,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20284 states. [2021-11-03 01:21:53,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20284 to 20262. [2021-11-03 01:21:53,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20262 states, 19914 states have (on average 1.368986642563021) internal successors, (27262), 19938 states have internal predecessors, (27262), 268 states have call successors, (268), 74 states have call predecessors, (268), 74 states have return successors, (271), 263 states have call predecessors, (271), 268 states have call successors, (271) [2021-11-03 01:21:53,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20262 states to 20262 states and 27801 transitions. [2021-11-03 01:21:53,200 INFO L78 Accepts]: Start accepts. Automaton has 20262 states and 27801 transitions. Word has length 254 [2021-11-03 01:21:53,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 01:21:53,203 INFO L470 AbstractCegarLoop]: Abstraction has 20262 states and 27801 transitions. [2021-11-03 01:21:53,204 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 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 01:21:53,205 INFO L276 IsEmpty]: Start isEmpty. Operand 20262 states and 27801 transitions. [2021-11-03 01:21:53,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2021-11-03 01:21:53,214 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 01:21:53,214 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:21:53,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-03 01:21:53,215 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 01:21:53,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 01:21:53,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1799677888, now seen corresponding path program 1 times [2021-11-03 01:21:53,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 01:21:53,217 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545416969] [2021-11-03 01:21:53,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 01:21:53,217 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 01:21:53,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 01:21:54,310 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 01:21:54,310 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 01:21:54,310 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545416969] [2021-11-03 01:21:54,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545416969] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 01:21:54,310 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 01:21:54,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 01:21:54,311 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927087261] [2021-11-03 01:21:54,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 01:21:54,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 01:21:54,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 01:21:54,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 01:21:54,313 INFO L87 Difference]: Start difference. First operand 20262 states and 27801 transitions. Second operand has 3 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 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 01:21:56,609 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 01:22:29,967 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 01:24:55,551 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 01:25:45,689 WARN L515 Checker$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 01:26:10,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 01:26:10,615 INFO L93 Difference]: Finished difference Result 49543 states and 68218 transitions. [2021-11-03 01:26:10,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 01:26:10,616 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 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 273 [2021-11-03 01:26:10,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 01:26:10,754 INFO L225 Difference]: With dead ends: 49543 [2021-11-03 01:26:10,755 INFO L226 Difference]: Without dead ends: 29925 [2021-11-03 01:26:10,833 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 26.34ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 01:26:10,834 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 13432 mSDsluCounter, 14287 mSDsCounter, 0 mSdLazyCounter, 28146 mSolverCounterSat, 12 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 240505.12ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13435 SdHoareTripleChecker+Valid, 663 SdHoareTripleChecker+Invalid, 28161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 250.39ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 28146 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 253254.45ms IncrementalHoareTripleChecker+Time [2021-11-03 01:26:10,835 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13435 Valid, 663 Invalid, 28161 Unknown, 0 Unchecked, 250.39ms Time], IncrementalHoareTripleChecker [12 Valid, 28146 Invalid, 3 Unknown, 0 Unchecked, 253254.45ms Time] [2021-11-03 01:26:10,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29925 states. [2021-11-03 01:26:11,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29925 to 29881. [2021-11-03 01:26:11,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29881 states, 29378 states have (on average 1.3716386411600516) internal successors, (40296), 29412 states have internal predecessors, (40296), 386 states have call successors, (386), 111 states have call predecessors, (386), 111 states have return successors, (392), 378 states have call predecessors, (392), 386 states have call successors, (392) [2021-11-03 01:26:11,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29881 states to 29881 states and 41074 transitions. [2021-11-03 01:26:11,465 INFO L78 Accepts]: Start accepts. Automaton has 29881 states and 41074 transitions. Word has length 273 [2021-11-03 01:26:11,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 01:26:11,467 INFO L470 AbstractCegarLoop]: Abstraction has 29881 states and 41074 transitions. [2021-11-03 01:26:11,467 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 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 01:26:11,467 INFO L276 IsEmpty]: Start isEmpty. Operand 29881 states and 41074 transitions. [2021-11-03 01:26:11,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2021-11-03 01:26:11,479 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 01:26:11,479 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:26:11,480 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-03 01:26:11,480 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 01:26:11,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 01:26:11,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1932344816, now seen corresponding path program 1 times [2021-11-03 01:26:11,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 01:26:11,481 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180697897] [2021-11-03 01:26:11,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 01:26:11,481 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 01:26:12,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 01:26:13,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-11-03 01:26:13,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 01:26:13,183 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 01:26:13,184 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 01:26:13,184 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180697897] [2021-11-03 01:26:13,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180697897] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 01:26:13,184 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 01:26:13,185 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-03 01:26:13,185 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346045505] [2021-11-03 01:26:13,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 01:26:13,186 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 01:26:13,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 01:26:13,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 01:26:13,187 INFO L87 Difference]: Start difference. First operand 29881 states and 41074 transitions. Second operand has 4 states, 4 states have (on average 71.25) internal successors, (285), 3 states have internal predecessors, (285), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-03 01:26:15,591 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.40s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 01:27:10,121 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 01:29:52,334 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