./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 5b36d44f Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-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-5b36d44 [2021-11-07 17:44:50,918 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 17:44:50,920 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 17:44:50,971 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 17:44:50,972 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 17:44:50,974 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 17:44:50,975 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 17:44:50,979 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 17:44:50,980 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 17:44:50,983 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 17:44:50,984 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 17:44:50,985 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 17:44:50,985 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 17:44:50,987 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 17:44:50,989 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 17:44:50,990 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 17:44:50,993 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 17:44:50,994 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 17:44:50,995 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 17:44:50,998 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 17:44:51,000 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 17:44:51,001 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 17:44:51,001 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 17:44:51,002 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 17:44:51,004 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 17:44:51,008 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 17:44:51,008 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 17:44:51,009 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 17:44:51,010 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 17:44:51,011 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 17:44:51,011 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 17:44:51,012 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 17:44:51,012 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 17:44:51,013 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 17:44:51,014 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 17:44:51,014 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 17:44:51,015 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 17:44:51,015 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 17:44:51,016 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 17:44:51,016 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 17:44:51,016 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 17:44:51,017 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 17:44:51,034 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 17:44:51,035 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 17:44:51,035 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 17:44:51,035 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 17:44:51,036 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 17:44:51,037 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 17:44:51,037 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 17:44:51,037 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 17:44:51,037 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 17:44:51,037 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 17:44:51,038 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 17:44:51,038 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 17:44:51,038 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 17:44:51,038 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 17:44:51,038 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 17:44:51,039 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 17:44:51,039 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 17:44:51,039 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 17:44:51,039 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 17:44:51,039 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 17:44:51,039 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 17:44:51,040 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 17:44:51,040 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 17:44:51,040 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 17:44:51,040 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 17:44:51,040 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 17:44:51,040 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 17:44:51,040 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 17:44:51,041 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 17:44:51,041 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22220d7d2391b6973f693fd73ea6ad5e547e8b6be8ceeaf0b83ac6f26119702f [2021-11-07 17:44:51,241 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 17:44:51,259 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 17:44:51,261 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 17:44:51,262 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 17:44:51,263 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 17:44:51,264 INFO L432 ainManager$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 [2021-11-07 17:44:51,310 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f97ef2d9b/de2d986e5a034379bb819b7db374145a/FLAGed3ee8b90 [2021-11-07 17:44:52,122 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 17:44:52,123 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 [2021-11-07 17:44:52,183 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f97ef2d9b/de2d986e5a034379bb819b7db374145a/FLAGed3ee8b90 [2021-11-07 17:44:52,340 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f97ef2d9b/de2d986e5a034379bb819b7db374145a [2021-11-07 17:44:52,343 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 17:44:52,343 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 17:44:52,344 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 17:44:52,344 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 17:44:52,349 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 17:44:52,349 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:44:52" (1/1) ... [2021-11-07 17:44:52,350 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b8a10cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:44:52, skipping insertion in model container [2021-11-07 17:44:52,350 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:44:52" (1/1) ... [2021-11-07 17:44:52,354 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 17:44:52,525 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 17:44:59,876 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] [2021-11-07 17:44:59,878 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] [2021-11-07 17:44:59,879 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] [2021-11-07 17:44:59,879 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] [2021-11-07 17:44:59,911 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 17:45:00,028 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 17:45:00,448 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] [2021-11-07 17:45:00,462 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] [2021-11-07 17:45:00,462 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] [2021-11-07 17:45:00,463 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] [2021-11-07 17:45:00,492 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 17:45:00,915 INFO L208 MainTranslator]: Completed translation [2021-11-07 17:45:00,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:45:00 WrapperNode [2021-11-07 17:45:00,916 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 17:45:00,917 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 17:45:00,917 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 17:45:00,917 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 17:45:00,922 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:45:00" (1/1) ... [2021-11-07 17:45:01,105 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:45:00" (1/1) ... [2021-11-07 17:45:02,617 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 17:45:02,618 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 17:45:02,618 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 17:45:02,618 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 17:45:02,624 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:45:00" (1/1) ... [2021-11-07 17:45:02,624 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:45:00" (1/1) ... [2021-11-07 17:45:02,951 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:45:00" (1/1) ... [2021-11-07 17:45:02,951 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:45:00" (1/1) ... [2021-11-07 17:45:03,689 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:45:00" (1/1) ... [2021-11-07 17:45:03,893 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:45:00" (1/1) ... [2021-11-07 17:45:04,081 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:45:00" (1/1) ... [2021-11-07 17:45:04,485 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 17:45:04,486 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 17:45:04,486 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 17:45:04,486 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 17:45:04,487 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:45:00" (1/1) ... [2021-11-07 17:45:04,507 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 17:45:04,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 17:45:04,577 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 17:45:04,633 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 17:45:04,658 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_clean_desc3___0 [2021-11-07 17:45:04,659 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_clean_desc3___0 [2021-11-07 17:45:04,659 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_probe [2021-11-07 17:45:04,659 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_probe [2021-11-07 17:45:04,659 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_poll_controller [2021-11-07 17:45:04,659 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_poll_controller [2021-11-07 17:45:04,659 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_suspend [2021-11-07 17:45:04,659 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_suspend [2021-11-07 17:45:04,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 17:45:04,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 17:45:04,660 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_tx_skbufs [2021-11-07 17:45:04,660 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_tx_skbufs [2021-11-07 17:45:04,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 17:45:04,660 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-07 17:45:04,660 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_suspend [2021-11-07 17:45:04,660 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_suspend [2021-11-07 17:45:04,661 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_interrupt [2021-11-07 17:45:04,661 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_interrupt [2021-11-07 17:45:04,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 17:45:04,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 17:45:04,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 17:45:04,661 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-07 17:45:04,661 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_ethtool_stats [2021-11-07 17:45:04,661 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_ethtool_stats [2021-11-07 17:45:04,662 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_init_rx_buffers [2021-11-07 17:45:04,662 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_init_rx_buffers [2021-11-07 17:45:04,662 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_hw_setup [2021-11-07 17:45:04,662 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_hw_setup [2021-11-07 17:45:04,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 17:45:04,662 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2021-11-07 17:45:04,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2021-11-07 17:45:04,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 17:45:04,663 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_release [2021-11-07 17:45:04,663 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_release [2021-11-07 17:45:04,663 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_tx_timeout [2021-11-07 17:45:04,663 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_tx_timeout [2021-11-07 17:45:04,664 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_hw_init [2021-11-07 17:45:04,664 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_hw_init [2021-11-07 17:45:04,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 17:45:04,664 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_disable_eee_mode [2021-11-07 17:45:04,664 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_disable_eee_mode [2021-11-07 17:45:04,664 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pci_remove [2021-11-07 17:45:04,665 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pci_remove [2021-11-07 17:45:04,665 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_remove [2021-11-07 17:45:04,665 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_remove [2021-11-07 17:45:04,665 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_dma_interrupt [2021-11-07 17:45:04,665 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_dma_interrupt [2021-11-07 17:45:04,665 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_resume [2021-11-07 17:45:04,665 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_resume [2021-11-07 17:45:04,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 17:45:04,666 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_open [2021-11-07 17:45:04,666 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_open [2021-11-07 17:45:04,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 17:45:04,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 17:45:04,667 INFO L130 BoogieDeclarations]: Found specification of procedure init_dma_desc_rings [2021-11-07 17:45:04,667 INFO L138 BoogieDeclarations]: Found implementation of procedure init_dma_desc_rings [2021-11-07 17:45:04,668 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_hw_features [2021-11-07 17:45:04,668 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_hw_features [2021-11-07 17:45:04,668 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pci_probe [2021-11-07 17:45:04,668 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pci_probe [2021-11-07 17:45:04,668 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_dvr_probe [2021-11-07 17:45:04,668 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_dvr_probe [2021-11-07 17:45:04,669 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_resume [2021-11-07 17:45:04,669 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_resume [2021-11-07 17:45:04,669 INFO L130 BoogieDeclarations]: Found specification of procedure free_dma_desc_resources [2021-11-07 17:45:04,669 INFO L138 BoogieDeclarations]: Found implementation of procedure free_dma_desc_resources [2021-11-07 17:45:04,669 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_mdio_reset [2021-11-07 17:45:04,670 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_mdio_reset [2021-11-07 17:45:04,670 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 17:45:04,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 17:45:04,670 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ethtool_op_set_eee [2021-11-07 17:45:04,670 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_op_set_eee [2021-11-07 17:45:04,670 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-07 17:45:04,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-07 17:45:04,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 17:45:04,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 17:45:04,671 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_disable_dma_irq [2021-11-07 17:45:04,671 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_disable_dma_irq [2021-11-07 17:45:04,671 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_dvr_remove [2021-11-07 17:45:04,671 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_dvr_remove [2021-11-07 17:45:04,671 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_tx_err [2021-11-07 17:45:04,671 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_tx_err [2021-11-07 17:45:04,671 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ethtool_getsettings [2021-11-07 17:45:04,672 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_getsettings [2021-11-07 17:45:04,672 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-07 17:45:04,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-07 17:45:04,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 17:45:04,672 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-07 17:45:04,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-07 17:45:04,673 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pci_resume [2021-11-07 17:45:04,673 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pci_resume [2021-11-07 17:46:43,302 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_6_switch_break: ldv_switch_6_#res := 0; [2021-11-07 17:46:43,303 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-07 17:46:43,303 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0; [2021-11-07 17:46:43,303 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#3: ldv_switch_2_#res := 0; [2021-11-07 17:46:43,303 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-07 17:46:43,303 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_6_switch_break#4: ldv_switch_6_#res := 0; [2021-11-07 17:46:43,303 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_6_switch_break#3: ldv_switch_6_#res := 0; [2021-11-07 17:46:43,304 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_6_switch_break#2: ldv_switch_6_#res := 0; [2021-11-07 17:46:43,304 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_5_switch_break#2: ldv_switch_5_#res := 0; [2021-11-07 17:46:43,304 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_4_switch_break#2: ldv_switch_4_#res := 0; [2021-11-07 17:46:43,304 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_4_switch_break#3: ldv_switch_4_#res := 0; [2021-11-07 17:46:43,304 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_5_switch_break: ldv_switch_5_#res := 0; [2021-11-07 17:46:43,304 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_8_switch_break#2: ldv_switch_8_#res := 0; [2021-11-07 17:46:43,304 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res := 0; [2021-11-07 17:46:43,304 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#4: ldv_switch_0_#res := 0; [2021-11-07 17:46:43,305 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-07 17:46:43,305 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break#2: ldv_switch_3_#res := 0; [2021-11-07 17:46:43,305 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-07 17:46:43,305 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_4_switch_break: ldv_switch_4_#res := 0; [2021-11-07 17:46:43,306 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_7_switch_break: ldv_switch_7_#res := 0; [2021-11-07 17:46:43,306 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break: ldv_switch_3_#res := 0; [2021-11-07 17:46:43,306 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_9_switch_break: ldv_switch_9_#res := 0; [2021-11-07 17:46:43,306 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_8_switch_break: ldv_switch_8_#res := 0; [2021-11-07 17:46:43,306 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-07 17:46:43,307 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-07 17:46:43,438 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 17:46:43,439 INFO L299 CfgBuilder]: Removed 10579 assume(true) statements. [2021-11-07 17:46:43,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:46:43 BoogieIcfgContainer [2021-11-07 17:46:43,451 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 17:46:43,455 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 17:46:43,455 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 17:46:43,461 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 17:46:43,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 05:44:52" (1/3) ... [2021-11-07 17:46:43,461 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ab166b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:46:43, skipping insertion in model container [2021-11-07 17:46:43,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:45:00" (2/3) ... [2021-11-07 17:46:43,467 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ab166b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:46:43, skipping insertion in model container [2021-11-07 17:46:43,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:46:43" (3/3) ... [2021-11-07 17:46:43,469 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i [2021-11-07 17:46:43,486 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 17:46:43,487 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-07 17:46:43,565 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 17:46:43,573 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 17:46:43,573 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-07 17:46:43,692 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) [2021-11-07 17:46:43,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-11-07 17:46:43,710 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:46:43,712 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] [2021-11-07 17:46:43,712 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)] === [2021-11-07 17:46:43,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:46:43,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1811077279, now seen corresponding path program 1 times [2021-11-07 17:46:43,723 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:46:43,723 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990389447] [2021-11-07 17:46:43,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:46:43,724 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:46:44,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:46:45,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 17:46:45,523 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:46:45,523 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990389447] [2021-11-07 17:46:45,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990389447] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:46:45,524 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:46:45,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:46:45,525 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608959433] [2021-11-07 17:46:45,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:46:45,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:46:45,530 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:46:45,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:46:45,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:46:45,574 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) [2021-11-07 17:46:47,932 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 17:46:48,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:46:48,905 INFO L93 Difference]: Finished difference Result 31022 states and 43529 transitions. [2021-11-07 17:46:48,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:46:48,909 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 [2021-11-07 17:46:48,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:46:49,070 INFO L225 Difference]: With dead ends: 31022 [2021-11-07 17:46:49,071 INFO L226 Difference]: Without dead ends: 20300 [2021-11-07 17:46:49,143 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.02ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:46:49,147 INFO L933 BasicCegarLoop]: 15234 mSDtfsCounter, 13941 mSDsluCounter, 15039 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2421.41ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13941 SdHoareTripleChecker+Valid, 30273 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 63.89ms SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2586.87ms IncrementalHoareTripleChecker+Time [2021-11-07 17:46:49,150 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13941 Valid, 30273 Invalid, 84 Unknown, 0 Unchecked, 63.89ms Time], IncrementalHoareTripleChecker [17 Valid, 66 Invalid, 1 Unknown, 0 Unchecked, 2586.87ms Time] [2021-11-07 17:46:49,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20300 states. [2021-11-07 17:46:49,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20300 to 20294. [2021-11-07 17:46:49,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20294 states, 19946 states have (on average 1.3689461546174673) internal successors, (27305), 19969 states have internal predecessors, (27305), 268 states have call successors, (268), 74 states have call predecessors, (268), 74 states have return successors, (268), 264 states have call predecessors, (268), 268 states have call successors, (268) [2021-11-07 17:46:49,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20294 states to 20294 states and 27841 transitions. [2021-11-07 17:46:49,776 INFO L78 Accepts]: Start accepts. Automaton has 20294 states and 27841 transitions. Word has length 254 [2021-11-07 17:46:49,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:46:49,780 INFO L470 AbstractCegarLoop]: Abstraction has 20294 states and 27841 transitions. [2021-11-07 17:46:49,780 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) [2021-11-07 17:46:49,781 INFO L276 IsEmpty]: Start isEmpty. Operand 20294 states and 27841 transitions. [2021-11-07 17:46:49,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2021-11-07 17:46:49,795 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:46:49,795 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] [2021-11-07 17:46:49,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 17:46:49,796 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)] === [2021-11-07 17:46:49,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:46:49,797 INFO L85 PathProgramCache]: Analyzing trace with hash 1799677888, now seen corresponding path program 1 times [2021-11-07 17:46:49,798 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:46:49,798 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608443097] [2021-11-07 17:46:49,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:46:49,799 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:46:50,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:46:51,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 17:46:51,174 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:46:51,174 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608443097] [2021-11-07 17:46:51,174 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608443097] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:46:51,174 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:46:51,174 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:46:51,175 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606148801] [2021-11-07 17:46:51,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:46:51,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:46:51,176 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:46:51,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:46:51,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:46:51,177 INFO L87 Difference]: Start difference. First operand 20294 states and 27841 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) [2021-11-07 17:46:53,534 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 17:46:54,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:46:54,747 INFO L93 Difference]: Finished difference Result 49623 states and 68314 transitions. [2021-11-07 17:46:54,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:46:54,748 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 [2021-11-07 17:46:54,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:46:54,938 INFO L225 Difference]: With dead ends: 49623 [2021-11-07 17:46:54,939 INFO L226 Difference]: Without dead ends: 29973 [2021-11-07 17:46:55,028 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.16ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:46:55,029 INFO L933 BasicCegarLoop]: 14464 mSDtfsCounter, 13453 mSDsluCounter, 14289 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2419.37ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13453 SdHoareTripleChecker+Valid, 28753 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 246.25ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2604.81ms IncrementalHoareTripleChecker+Time [2021-11-07 17:46:55,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13453 Valid, 28753 Invalid, 74 Unknown, 0 Unchecked, 246.25ms Time], IncrementalHoareTripleChecker [12 Valid, 61 Invalid, 1 Unknown, 0 Unchecked, 2604.81ms Time] [2021-11-07 17:46:55,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29973 states. [2021-11-07 17:46:55,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29973 to 29945. [2021-11-07 17:46:55,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29945 states, 29442 states have (on average 1.371578017797704) internal successors, (40382), 29474 states have internal predecessors, (40382), 386 states have call successors, (386), 111 states have call predecessors, (386), 111 states have return successors, (386), 380 states have call predecessors, (386), 386 states have call successors, (386) [2021-11-07 17:46:55,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29945 states to 29945 states and 41154 transitions. [2021-11-07 17:46:55,732 INFO L78 Accepts]: Start accepts. Automaton has 29945 states and 41154 transitions. Word has length 273 [2021-11-07 17:46:55,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:46:55,733 INFO L470 AbstractCegarLoop]: Abstraction has 29945 states and 41154 transitions. [2021-11-07 17:46:55,733 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) [2021-11-07 17:46:55,734 INFO L276 IsEmpty]: Start isEmpty. Operand 29945 states and 41154 transitions. [2021-11-07 17:46:55,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2021-11-07 17:46:55,746 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:46:55,746 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] [2021-11-07 17:46:55,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 17:46:55,746 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)] === [2021-11-07 17:46:55,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:46:55,747 INFO L85 PathProgramCache]: Analyzing trace with hash 1932344816, now seen corresponding path program 1 times [2021-11-07 17:46:55,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:46:55,747 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119744940] [2021-11-07 17:46:55,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:46:55,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:46:56,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:46:56,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-11-07 17:46:56,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:46:56,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 17:46:56,984 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:46:56,985 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119744940] [2021-11-07 17:46:56,986 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119744940] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:46:56,986 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:46:56,987 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 17:46:56,989 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262699808] [2021-11-07 17:46:56,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:46:56,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 17:46:56,989 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:46:56,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 17:46:56,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 17:46:56,990 INFO L87 Difference]: Start difference. First operand 29945 states and 41154 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) [2021-11-07 17:46:59,334 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 17:47:01,548 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 17:47:18,153 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 17:47:20,851 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 17:47:23,953 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 17:47:26,114 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 17:47:28,362 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 17:47:30,855 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 17:47:34,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:47:34,722 INFO L93 Difference]: Finished difference Result 81581 states and 112889 transitions. [2021-11-07 17:47:34,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 17:47:34,726 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 287 [2021-11-07 17:47:34,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:47:35,006 INFO L225 Difference]: With dead ends: 81581 [2021-11-07 17:47:35,007 INFO L226 Difference]: Without dead ends: 52280 [2021-11-07 17:47:35,110 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 147.79ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:47:35,113 INFO L933 BasicCegarLoop]: 14552 mSDtfsCounter, 16497 mSDsluCounter, 24272 mSDsCounter, 0 mSdLazyCounter, 5045 mSolverCounterSat, 526 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33501.07ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 16522 SdHoareTripleChecker+Valid, 38824 SdHoareTripleChecker+Invalid, 5579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 186.09ms SdHoareTripleChecker+Time, 526 IncrementalHoareTripleChecker+Valid, 5045 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35944.84ms IncrementalHoareTripleChecker+Time [2021-11-07 17:47:35,114 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16522 Valid, 38824 Invalid, 5579 Unknown, 0 Unchecked, 186.09ms Time], IncrementalHoareTripleChecker [526 Valid, 5045 Invalid, 8 Unknown, 0 Unchecked, 35944.84ms Time] [2021-11-07 17:47:35,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52280 states. [2021-11-07 17:47:36,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52280 to 49176. [2021-11-07 17:47:36,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49176 states, 48357 states have (on average 1.374464917178485) internal successors, (66465), 48407 states have internal predecessors, (66465), 628 states have call successors, (628), 185 states have call predecessors, (628), 185 states have return successors, (628), 618 states have call predecessors, (628), 628 states have call successors, (628) [2021-11-07 17:47:36,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49176 states to 49176 states and 67721 transitions. [2021-11-07 17:47:36,860 INFO L78 Accepts]: Start accepts. Automaton has 49176 states and 67721 transitions. Word has length 287 [2021-11-07 17:47:36,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:47:36,861 INFO L470 AbstractCegarLoop]: Abstraction has 49176 states and 67721 transitions. [2021-11-07 17:47:36,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2021-11-07 17:47:36,862 INFO L276 IsEmpty]: Start isEmpty. Operand 49176 states and 67721 transitions. [2021-11-07 17:47:36,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2021-11-07 17:47:36,880 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:47:36,881 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 17:47:36,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 17:47:36,881 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 17:47:36,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:47:36,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1753334161, now seen corresponding path program 1 times [2021-11-07 17:47:36,882 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:47:36,882 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661536654] [2021-11-07 17:47:36,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:47:36,882 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:47:37,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:47:38,165 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 17:47:38,165 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:47:38,165 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661536654] [2021-11-07 17:47:38,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661536654] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:47:38,166 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:47:38,166 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:47:38,166 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038717912] [2021-11-07 17:47:38,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:47:38,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:47:38,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:47:38,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:47:38,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:47:38,168 INFO L87 Difference]: Start difference. First operand 49176 states and 67721 transitions. Second operand has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:47:40,533 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 17:47:42,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:47:42,368 INFO L93 Difference]: Finished difference Result 126810 states and 174970 transitions. [2021-11-07 17:47:42,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:47:42,369 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 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 290 [2021-11-07 17:47:42,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:47:42,785 INFO L225 Difference]: With dead ends: 126810 [2021-11-07 17:47:42,785 INFO L226 Difference]: Without dead ends: 87836 [2021-11-07 17:47:43,078 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.09ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:47:43,080 INFO L933 BasicCegarLoop]: 27826 mSDtfsCounter, 13499 mSDsluCounter, 14287 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2403.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13499 SdHoareTripleChecker+Valid, 42113 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 30.17ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2564.25ms IncrementalHoareTripleChecker+Time [2021-11-07 17:47:43,081 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13499 Valid, 42113 Invalid, 80 Unknown, 0 Unchecked, 30.17ms Time], IncrementalHoareTripleChecker [15 Valid, 64 Invalid, 1 Unknown, 0 Unchecked, 2564.25ms Time] [2021-11-07 17:47:43,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87836 states. [2021-11-07 17:47:45,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87836 to 87830. [2021-11-07 17:47:45,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87830 states, 86355 states have (on average 1.3761681431301025) internal successors, (118839), 86441 states have internal predecessors, (118839), 1136 states have call successors, (1136), 333 states have call predecessors, (1136), 333 states have return successors, (1136), 1118 states have call predecessors, (1136), 1136 states have call successors, (1136) [2021-11-07 17:47:45,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87830 states to 87830 states and 121111 transitions. [2021-11-07 17:47:45,672 INFO L78 Accepts]: Start accepts. Automaton has 87830 states and 121111 transitions. Word has length 290 [2021-11-07 17:47:45,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:47:45,674 INFO L470 AbstractCegarLoop]: Abstraction has 87830 states and 121111 transitions. [2021-11-07 17:47:45,674 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:47:45,675 INFO L276 IsEmpty]: Start isEmpty. Operand 87830 states and 121111 transitions. [2021-11-07 17:47:45,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2021-11-07 17:47:45,687 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:47:45,687 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 17:47:45,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 17:47:45,688 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 17:47:45,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:47:45,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1840568557, now seen corresponding path program 1 times [2021-11-07 17:47:45,690 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:47:45,690 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839814627] [2021-11-07 17:47:45,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:47:45,691 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:47:46,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:47:46,723 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 17:47:46,723 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:47:46,723 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839814627] [2021-11-07 17:47:46,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839814627] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:47:46,723 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:47:46,724 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:47:46,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023080659] [2021-11-07 17:47:46,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:47:46,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:47:46,724 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:47:46,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:47:46,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:47:46,725 INFO L87 Difference]: Start difference. First operand 87830 states and 121111 transitions. Second operand has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:47:49,034 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 17:47:52,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:47:52,194 INFO L93 Difference]: Finished difference Result 204122 states and 281758 transitions. [2021-11-07 17:47:52,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:47:52,195 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 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 290 [2021-11-07 17:47:52,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:47:52,768 INFO L225 Difference]: With dead ends: 204122 [2021-11-07 17:47:52,768 INFO L226 Difference]: Without dead ends: 126494 [2021-11-07 17:47:52,984 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.52ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:47:52,985 INFO L933 BasicCegarLoop]: 27826 mSDtfsCounter, 13501 mSDsluCounter, 14286 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2366.97ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13501 SdHoareTripleChecker+Valid, 42112 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 34.21ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2535.41ms IncrementalHoareTripleChecker+Time [2021-11-07 17:47:52,985 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13501 Valid, 42112 Invalid, 82 Unknown, 0 Unchecked, 34.21ms Time], IncrementalHoareTripleChecker [16 Valid, 65 Invalid, 1 Unknown, 0 Unchecked, 2535.41ms Time] [2021-11-07 17:47:53,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126494 states. [2021-11-07 17:47:56,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126494 to 126437. [2021-11-07 17:47:56,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126437 states, 124306 states have (on average 1.3769729538397182) internal successors, (171166), 124428 states have internal predecessors, (171166), 1644 states have call successors, (1644), 481 states have call predecessors, (1644), 481 states have return successors, (1644), 1618 states have call predecessors, (1644), 1644 states have call successors, (1644) [2021-11-07 17:47:56,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126437 states to 126437 states and 174454 transitions. [2021-11-07 17:47:56,705 INFO L78 Accepts]: Start accepts. Automaton has 126437 states and 174454 transitions. Word has length 290 [2021-11-07 17:47:56,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:47:56,706 INFO L470 AbstractCegarLoop]: Abstraction has 126437 states and 174454 transitions. [2021-11-07 17:47:56,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:47:56,706 INFO L276 IsEmpty]: Start isEmpty. Operand 126437 states and 174454 transitions. [2021-11-07 17:47:56,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2021-11-07 17:47:56,720 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:47:56,720 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, 1, 1, 1, 1, 1] [2021-11-07 17:47:56,720 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 17:47:56,721 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 17:47:56,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:47:56,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1899315257, now seen corresponding path program 1 times [2021-11-07 17:47:56,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:47:56,722 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451149255] [2021-11-07 17:47:56,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:47:56,722 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:47:57,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:47:58,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-11-07 17:47:58,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:47:58,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 17:47:58,062 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:47:58,062 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451149255] [2021-11-07 17:47:58,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451149255] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:47:58,063 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:47:58,063 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 17:47:58,063 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146781427] [2021-11-07 17:47:58,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:47:58,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 17:47:58,064 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:47:58,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 17:47:58,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 17:47:58,064 INFO L87 Difference]: Start difference. First operand 126437 states and 174454 transitions. Second operand has 4 states, 4 states have (on average 72.5) internal successors, (290), 3 states have internal predecessors, (290), 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) [2021-11-07 17:48:00,395 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 17:48:02,521 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 17:48:09,185 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 17:48:20,747 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 17:48:23,514 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 17:48:28,926 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 17:48:32,449 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 17:48:35,723 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 17:48:38,032 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 17:48:43,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:48:43,073 INFO L93 Difference]: Finished difference Result 382895 states and 530956 transitions. [2021-11-07 17:48:43,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 17:48:43,074 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 72.5) internal successors, (290), 3 states have internal predecessors, (290), 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) Word has length 292 [2021-11-07 17:48:43,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:48:44,602 INFO L225 Difference]: With dead ends: 382895 [2021-11-07 17:48:44,603 INFO L226 Difference]: Without dead ends: 257102 [2021-11-07 17:48:44,995 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 139.94ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:48:44,996 INFO L933 BasicCegarLoop]: 14435 mSDtfsCounter, 16709 mSDsluCounter, 24190 mSDsCounter, 0 mSdLazyCounter, 4956 mSolverCounterSat, 525 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35646.98ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 16733 SdHoareTripleChecker+Valid, 38625 SdHoareTripleChecker+Invalid, 5489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 152.85ms SdHoareTripleChecker+Time, 525 IncrementalHoareTripleChecker+Valid, 4956 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38389.88ms IncrementalHoareTripleChecker+Time [2021-11-07 17:48:44,996 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16733 Valid, 38625 Invalid, 5489 Unknown, 0 Unchecked, 152.85ms Time], IncrementalHoareTripleChecker [525 Valid, 4956 Invalid, 8 Unknown, 0 Unchecked, 38389.88ms Time] [2021-11-07 17:48:45,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257102 states. [2021-11-07 17:48:51,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257102 to 241689. [2021-11-07 17:48:51,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241689 states, 237616 states have (on average 1.377895427917312) internal successors, (327410), 237846 states have internal predecessors, (327410), 3142 states have call successors, (3142), 925 states have call predecessors, (3142), 925 states have return successors, (3142), 3092 states have call predecessors, (3142), 3142 states have call successors, (3142) [2021-11-07 17:48:52,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241689 states to 241689 states and 333694 transitions. [2021-11-07 17:48:52,513 INFO L78 Accepts]: Start accepts. Automaton has 241689 states and 333694 transitions. Word has length 292 [2021-11-07 17:48:52,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:48:52,514 INFO L470 AbstractCegarLoop]: Abstraction has 241689 states and 333694 transitions. [2021-11-07 17:48:52,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 72.5) internal successors, (290), 3 states have internal predecessors, (290), 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) [2021-11-07 17:48:52,514 INFO L276 IsEmpty]: Start isEmpty. Operand 241689 states and 333694 transitions. [2021-11-07 17:48:52,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2021-11-07 17:48:52,536 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:48:52,537 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 17:48:52,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 17:48:52,537 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 17:48:52,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:48:52,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1573197835, now seen corresponding path program 1 times [2021-11-07 17:48:52,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:48:52,538 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951405157] [2021-11-07 17:48:52,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:48:52,538 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:48:53,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:48:54,009 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-07 17:48:54,009 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:48:54,010 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951405157] [2021-11-07 17:48:54,010 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951405157] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:48:54,010 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:48:54,010 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 17:48:54,010 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617939942] [2021-11-07 17:48:54,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:48:54,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 17:48:54,011 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:48:54,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 17:48:54,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 17:48:54,012 INFO L87 Difference]: Start difference. First operand 241689 states and 333694 transitions. Second operand has 4 states, 4 states have (on average 71.5) internal successors, (286), 4 states have internal predecessors, (286), 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)