./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 173e3943 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-dev-173e394 [2021-11-06 19:15:44,957 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 19:15:44,965 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 19:15:45,006 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 19:15:45,007 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 19:15:45,010 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 19:15:45,012 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 19:15:45,016 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 19:15:45,018 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 19:15:45,020 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 19:15:45,020 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 19:15:45,021 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 19:15:45,021 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 19:15:45,022 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 19:15:45,023 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 19:15:45,024 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 19:15:45,025 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 19:15:45,026 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 19:15:45,027 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 19:15:45,034 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 19:15:45,036 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 19:15:45,038 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 19:15:45,040 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 19:15:45,041 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 19:15:45,049 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 19:15:45,052 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 19:15:45,053 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 19:15:45,054 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 19:15:45,055 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 19:15:45,056 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 19:15:45,057 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 19:15:45,058 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 19:15:45,059 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 19:15:45,060 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 19:15:45,061 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 19:15:45,061 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 19:15:45,062 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 19:15:45,062 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 19:15:45,062 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 19:15:45,062 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 19:15:45,063 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 19:15:45,064 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 19:15:45,084 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 19:15:45,085 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 19:15:45,085 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 19:15:45,085 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 19:15:45,087 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 19:15:45,087 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 19:15:45,087 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 19:15:45,087 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 19:15:45,087 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 19:15:45,088 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 19:15:45,088 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 19:15:45,089 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 19:15:45,089 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 19:15:45,089 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 19:15:45,089 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 19:15:45,089 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 19:15:45,090 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 19:15:45,090 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 19:15:45,090 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 19:15:45,090 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 19:15:45,090 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 19:15:45,091 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 19:15:45,091 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 19:15:45,091 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 19:15:45,091 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 19:15:45,091 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 19:15:45,091 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 19:15:45,092 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 19:15:45,092 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 19:15:45,092 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22220d7d2391b6973f693fd73ea6ad5e547e8b6be8ceeaf0b83ac6f26119702f [2021-11-06 19:15:45,299 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 19:15:45,318 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 19:15:45,320 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 19:15:45,322 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 19:15:45,327 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 19:15:45,328 INFO L432 ainManager$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 [2021-11-06 19:15:45,403 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c8f1dfbc/b12e5fd3b6cf4489b2523a8d30af8a63/FLAG2f9517c5a [2021-11-06 19:15:46,450 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 19:15:46,451 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 [2021-11-06 19:15:46,565 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c8f1dfbc/b12e5fd3b6cf4489b2523a8d30af8a63/FLAG2f9517c5a [2021-11-06 19:15:46,768 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c8f1dfbc/b12e5fd3b6cf4489b2523a8d30af8a63 [2021-11-06 19:15:46,771 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 19:15:46,774 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 19:15:46,775 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 19:15:46,775 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 19:15:46,781 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 19:15:46,782 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:15:46" (1/1) ... [2021-11-06 19:15:46,783 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@291c4d2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:15:46, skipping insertion in model container [2021-11-06 19:15:46,783 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:15:46" (1/1) ... [2021-11-06 19:15:46,789 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 19:15:47,003 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 19:15:57,784 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] [2021-11-06 19:15:57,787 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] [2021-11-06 19:15:57,787 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] [2021-11-06 19:15:57,788 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] [2021-11-06 19:15:57,840 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 19:15:58,016 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 19:15:58,680 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] [2021-11-06 19:15:58,681 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] [2021-11-06 19:15:58,681 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] [2021-11-06 19:15:58,681 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] [2021-11-06 19:15:58,710 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 19:15:59,480 INFO L208 MainTranslator]: Completed translation [2021-11-06 19:15:59,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:15:59 WrapperNode [2021-11-06 19:15:59,480 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 19:15:59,482 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 19:15:59,482 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 19:15:59,482 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 19:15:59,489 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:15:59" (1/1) ... [2021-11-06 19:15:59,770 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:15:59" (1/1) ... [2021-11-06 19:16:01,964 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 19:16:01,966 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 19:16:01,966 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 19:16:01,966 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 19:16:01,978 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:15:59" (1/1) ... [2021-11-06 19:16:01,991 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:15:59" (1/1) ... [2021-11-06 19:16:02,686 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:15:59" (1/1) ... [2021-11-06 19:16:02,688 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:15:59" (1/1) ... [2021-11-06 19:16:03,803 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:15:59" (1/1) ... [2021-11-06 19:16:03,961 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:15:59" (1/1) ... [2021-11-06 19:16:04,110 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:15:59" (1/1) ... [2021-11-06 19:16:04,582 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 19:16:04,584 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 19:16:04,585 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 19:16:04,585 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 19:16:04,586 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:15:59" (1/1) ... [2021-11-06 19:16:04,597 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 19:16:04,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 19:16:04,627 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) [2021-11-06 19:16:04,635 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 [2021-11-06 19:16:04,664 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_clean_desc3___0 [2021-11-06 19:16:04,664 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_clean_desc3___0 [2021-11-06 19:16:04,664 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_probe [2021-11-06 19:16:04,665 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_probe [2021-11-06 19:16:04,665 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_poll_controller [2021-11-06 19:16:04,665 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_poll_controller [2021-11-06 19:16:04,665 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_suspend [2021-11-06 19:16:04,665 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_suspend [2021-11-06 19:16:04,665 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 19:16:04,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 19:16:04,666 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_tx_skbufs [2021-11-06 19:16:04,666 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_tx_skbufs [2021-11-06 19:16:04,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 19:16:04,667 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-06 19:16:04,667 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_suspend [2021-11-06 19:16:04,668 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_suspend [2021-11-06 19:16:04,668 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_interrupt [2021-11-06 19:16:04,668 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_interrupt [2021-11-06 19:16:04,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 19:16:04,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 19:16:04,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-06 19:16:04,668 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-06 19:16:04,669 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_ethtool_stats [2021-11-06 19:16:04,669 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_ethtool_stats [2021-11-06 19:16:04,669 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_init_rx_buffers [2021-11-06 19:16:04,669 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_init_rx_buffers [2021-11-06 19:16:04,669 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_hw_setup [2021-11-06 19:16:04,669 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_hw_setup [2021-11-06 19:16:04,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 19:16:04,670 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2021-11-06 19:16:04,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2021-11-06 19:16:04,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 19:16:04,670 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_release [2021-11-06 19:16:04,670 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_release [2021-11-06 19:16:04,670 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_tx_timeout [2021-11-06 19:16:04,671 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_tx_timeout [2021-11-06 19:16:04,671 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_hw_init [2021-11-06 19:16:04,671 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_hw_init [2021-11-06 19:16:04,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 19:16:04,672 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_disable_eee_mode [2021-11-06 19:16:04,672 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_disable_eee_mode [2021-11-06 19:16:04,672 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pci_remove [2021-11-06 19:16:04,672 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pci_remove [2021-11-06 19:16:04,673 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_remove [2021-11-06 19:16:04,673 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_remove [2021-11-06 19:16:04,673 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_dma_interrupt [2021-11-06 19:16:04,673 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_dma_interrupt [2021-11-06 19:16:04,673 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_resume [2021-11-06 19:16:04,673 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_resume [2021-11-06 19:16:04,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 19:16:04,674 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_open [2021-11-06 19:16:04,674 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_open [2021-11-06 19:16:04,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-06 19:16:04,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 19:16:04,676 INFO L130 BoogieDeclarations]: Found specification of procedure init_dma_desc_rings [2021-11-06 19:16:04,676 INFO L138 BoogieDeclarations]: Found implementation of procedure init_dma_desc_rings [2021-11-06 19:16:04,676 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_hw_features [2021-11-06 19:16:04,676 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_hw_features [2021-11-06 19:16:04,676 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pci_probe [2021-11-06 19:16:04,676 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pci_probe [2021-11-06 19:16:04,677 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_dvr_probe [2021-11-06 19:16:04,677 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_dvr_probe [2021-11-06 19:16:04,677 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_resume [2021-11-06 19:16:04,677 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_resume [2021-11-06 19:16:04,678 INFO L130 BoogieDeclarations]: Found specification of procedure free_dma_desc_resources [2021-11-06 19:16:04,678 INFO L138 BoogieDeclarations]: Found implementation of procedure free_dma_desc_resources [2021-11-06 19:16:04,678 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_mdio_reset [2021-11-06 19:16:04,678 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_mdio_reset [2021-11-06 19:16:04,679 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-06 19:16:04,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-06 19:16:04,679 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ethtool_op_set_eee [2021-11-06 19:16:04,679 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_op_set_eee [2021-11-06 19:16:04,679 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-06 19:16:04,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-06 19:16:04,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-06 19:16:04,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 19:16:04,680 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_disable_dma_irq [2021-11-06 19:16:04,680 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_disable_dma_irq [2021-11-06 19:16:04,680 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_dvr_remove [2021-11-06 19:16:04,680 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_dvr_remove [2021-11-06 19:16:04,680 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_tx_err [2021-11-06 19:16:04,680 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_tx_err [2021-11-06 19:16:04,681 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ethtool_getsettings [2021-11-06 19:16:04,681 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_getsettings [2021-11-06 19:16:04,681 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-06 19:16:04,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-06 19:16:04,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 19:16:04,682 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-06 19:16:04,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-06 19:16:04,682 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pci_resume [2021-11-06 19:16:04,682 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pci_resume [2021-11-06 19:17:53,900 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_6_switch_break: ldv_switch_6_#res := 0; [2021-11-06 19:17:53,900 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-06 19:17:53,900 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0; [2021-11-06 19:17:53,901 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#3: ldv_switch_2_#res := 0; [2021-11-06 19:17:53,901 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-06 19:17:53,901 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_6_switch_break#4: ldv_switch_6_#res := 0; [2021-11-06 19:17:53,901 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_6_switch_break#3: ldv_switch_6_#res := 0; [2021-11-06 19:17:53,902 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_6_switch_break#2: ldv_switch_6_#res := 0; [2021-11-06 19:17:53,902 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_5_switch_break#2: ldv_switch_5_#res := 0; [2021-11-06 19:17:53,902 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_4_switch_break#2: ldv_switch_4_#res := 0; [2021-11-06 19:17:53,902 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_4_switch_break#3: ldv_switch_4_#res := 0; [2021-11-06 19:17:53,902 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_5_switch_break: ldv_switch_5_#res := 0; [2021-11-06 19:17:53,903 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_8_switch_break#2: ldv_switch_8_#res := 0; [2021-11-06 19:17:53,903 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res := 0; [2021-11-06 19:17:53,903 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#4: ldv_switch_0_#res := 0; [2021-11-06 19:17:53,903 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-06 19:17:53,903 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break#2: ldv_switch_3_#res := 0; [2021-11-06 19:17:53,905 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-06 19:17:53,905 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_4_switch_break: ldv_switch_4_#res := 0; [2021-11-06 19:17:53,905 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_7_switch_break: ldv_switch_7_#res := 0; [2021-11-06 19:17:53,906 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break: ldv_switch_3_#res := 0; [2021-11-06 19:17:53,906 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_9_switch_break: ldv_switch_9_#res := 0; [2021-11-06 19:17:53,906 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_8_switch_break: ldv_switch_8_#res := 0; [2021-11-06 19:17:53,907 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-06 19:17:53,907 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-06 19:17:54,043 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 19:17:54,043 INFO L299 CfgBuilder]: Removed 10579 assume(true) statements. [2021-11-06 19:17:54,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:17:54 BoogieIcfgContainer [2021-11-06 19:17:54,058 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 19:17:54,060 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 19:17:54,060 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 19:17:54,064 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 19:17:54,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 07:15:46" (1/3) ... [2021-11-06 19:17:54,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bc4824a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:17:54, skipping insertion in model container [2021-11-06 19:17:54,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:15:59" (2/3) ... [2021-11-06 19:17:54,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bc4824a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:17:54, skipping insertion in model container [2021-11-06 19:17:54,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:17:54" (3/3) ... [2021-11-06 19:17:54,067 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i [2021-11-06 19:17:54,072 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 19:17:54,073 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-06 19:17:54,152 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 19:17:54,164 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 [2021-11-06 19:17:54,165 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-06 19:17:54,328 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) [2021-11-06 19:17:54,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-11-06 19:17:54,362 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 19:17:54,362 INFO L513 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] [2021-11-06 19:17:54,363 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)] === [2021-11-06 19:17:54,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 19:17:54,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1811077279, now seen corresponding path program 1 times [2021-11-06 19:17:54,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 19:17:54,375 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616649652] [2021-11-06 19:17:54,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 19:17:54,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 19:17:56,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 19:17:57,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 19:17:57,049 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 19:17:57,049 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616649652] [2021-11-06 19:17:57,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616649652] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 19:17:57,050 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 19:17:57,051 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 19:17:57,052 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269049179] [2021-11-06 19:17:57,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 19:17:57,059 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 19:17:57,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 19:17:57,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 19:17:57,104 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) [2021-11-06 19:18:00,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 19:18:00,622 INFO L93 Difference]: Finished difference Result 31022 states and 43529 transitions. [2021-11-06 19:18:00,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 19:18:00,624 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 [2021-11-06 19:18:00,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 19:18:00,834 INFO L225 Difference]: With dead ends: 31022 [2021-11-06 19:18:00,835 INFO L226 Difference]: Without dead ends: 20300 [2021-11-06 19:18:00,936 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 19:18:00,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20300 states. [2021-11-06 19:18:01,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20300 to 20294. [2021-11-06 19:18:01,629 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) [2021-11-06 19:18:01,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20294 states to 20294 states and 27841 transitions. [2021-11-06 19:18:01,771 INFO L78 Accepts]: Start accepts. Automaton has 20294 states and 27841 transitions. Word has length 254 [2021-11-06 19:18:01,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 19:18:01,773 INFO L470 AbstractCegarLoop]: Abstraction has 20294 states and 27841 transitions. [2021-11-06 19:18:01,774 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) [2021-11-06 19:18:01,774 INFO L276 IsEmpty]: Start isEmpty. Operand 20294 states and 27841 transitions. [2021-11-06 19:18:01,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2021-11-06 19:18:01,788 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 19:18:01,788 INFO L513 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] [2021-11-06 19:18:01,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 19:18:01,789 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)] === [2021-11-06 19:18:01,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 19:18:01,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1799677888, now seen corresponding path program 1 times [2021-11-06 19:18:01,792 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 19:18:01,792 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987807133] [2021-11-06 19:18:01,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 19:18:01,793 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 19:18:02,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 19:18:03,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 19:18:03,448 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 19:18:03,448 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987807133] [2021-11-06 19:18:03,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987807133] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 19:18:03,449 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 19:18:03,449 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 19:18:03,450 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400102013] [2021-11-06 19:18:03,452 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 19:18:03,453 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 19:18:03,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 19:18:03,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 19:18:03,455 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) [2021-11-06 19:18:07,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 19:18:07,167 INFO L93 Difference]: Finished difference Result 49623 states and 68314 transitions. [2021-11-06 19:18:07,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 19:18:07,168 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 [2021-11-06 19:18:07,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 19:18:07,440 INFO L225 Difference]: With dead ends: 49623 [2021-11-06 19:18:07,440 INFO L226 Difference]: Without dead ends: 29973 [2021-11-06 19:18:07,571 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 19:18:07,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29973 states. [2021-11-06 19:18:08,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29973 to 29945. [2021-11-06 19:18:08,433 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) [2021-11-06 19:18:08,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29945 states to 29945 states and 41154 transitions. [2021-11-06 19:18:08,562 INFO L78 Accepts]: Start accepts. Automaton has 29945 states and 41154 transitions. Word has length 273 [2021-11-06 19:18:08,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 19:18:08,564 INFO L470 AbstractCegarLoop]: Abstraction has 29945 states and 41154 transitions. [2021-11-06 19:18:08,564 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) [2021-11-06 19:18:08,565 INFO L276 IsEmpty]: Start isEmpty. Operand 29945 states and 41154 transitions. [2021-11-06 19:18:08,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2021-11-06 19:18:08,582 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 19:18:08,583 INFO L513 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] [2021-11-06 19:18:08,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 19:18:08,583 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)] === [2021-11-06 19:18:08,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 19:18:08,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1932344816, now seen corresponding path program 1 times [2021-11-06 19:18:08,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 19:18:08,584 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439701486] [2021-11-06 19:18:08,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 19:18:08,585 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 19:18:09,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 19:18:10,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-11-06 19:18:10,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 19:18:10,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 19:18:10,263 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 19:18:10,263 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439701486] [2021-11-06 19:18:10,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439701486] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 19:18:10,267 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 19:18:10,267 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 19:18:10,267 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874320785] [2021-11-06 19:18:10,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 19:18:10,268 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 19:18:10,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 19:18:10,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 19:18:10,270 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) [2021-11-06 19:18:53,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 19:18:53,553 INFO L93 Difference]: Finished difference Result 81581 states and 112889 transitions. [2021-11-06 19:18:53,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 19:18:53,554 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 [2021-11-06 19:18:53,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 19:18:53,973 INFO L225 Difference]: With dead ends: 81581 [2021-11-06 19:18:53,973 INFO L226 Difference]: Without dead ends: 52280 [2021-11-06 19:18:54,301 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 19:18:54,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52280 states. [2021-11-06 19:18:55,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52280 to 49176. [2021-11-06 19:18:56,095 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) [2021-11-06 19:18:56,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49176 states to 49176 states and 67721 transitions. [2021-11-06 19:18:56,309 INFO L78 Accepts]: Start accepts. Automaton has 49176 states and 67721 transitions. Word has length 287 [2021-11-06 19:18:56,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 19:18:56,310 INFO L470 AbstractCegarLoop]: Abstraction has 49176 states and 67721 transitions. [2021-11-06 19:18:56,310 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) [2021-11-06 19:18:56,310 INFO L276 IsEmpty]: Start isEmpty. Operand 49176 states and 67721 transitions. [2021-11-06 19:18:56,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2021-11-06 19:18:56,327 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 19:18:56,327 INFO L513 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] [2021-11-06 19:18:56,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 19:18:56,328 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)] === [2021-11-06 19:18:56,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 19:18:56,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1753334161, now seen corresponding path program 1 times [2021-11-06 19:18:56,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 19:18:56,329 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965716742] [2021-11-06 19:18:56,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 19:18:56,329 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 19:18:57,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 19:18:57,731 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 19:18:57,732 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 19:18:57,732 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965716742] [2021-11-06 19:18:57,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965716742] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 19:18:57,733 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 19:18:57,733 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 19:18:57,733 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982057762] [2021-11-06 19:18:57,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 19:18:57,734 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 19:18:57,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 19:18:57,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 19:18:57,736 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) [2021-11-06 19:19:02,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 19:19:02,616 INFO L93 Difference]: Finished difference Result 126810 states and 174970 transitions. [2021-11-06 19:19:02,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 19:19:02,617 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 [2021-11-06 19:19:02,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 19:19:03,112 INFO L225 Difference]: With dead ends: 126810 [2021-11-06 19:19:03,113 INFO L226 Difference]: Without dead ends: 87836 [2021-11-06 19:19:03,338 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 19:19:03,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87836 states. [2021-11-06 19:19:06,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87836 to 87830. [2021-11-06 19:19:06,249 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) [2021-11-06 19:19:06,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87830 states to 87830 states and 121111 transitions. [2021-11-06 19:19:06,748 INFO L78 Accepts]: Start accepts. Automaton has 87830 states and 121111 transitions. Word has length 290 [2021-11-06 19:19:06,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 19:19:06,749 INFO L470 AbstractCegarLoop]: Abstraction has 87830 states and 121111 transitions. [2021-11-06 19:19:06,750 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) [2021-11-06 19:19:06,750 INFO L276 IsEmpty]: Start isEmpty. Operand 87830 states and 121111 transitions. [2021-11-06 19:19:06,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2021-11-06 19:19:06,769 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 19:19:06,769 INFO L513 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] [2021-11-06 19:19:06,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-06 19:19:06,770 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)] === [2021-11-06 19:19:06,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 19:19:06,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1840568557, now seen corresponding path program 1 times [2021-11-06 19:19:06,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 19:19:06,771 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048966997] [2021-11-06 19:19:06,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 19:19:06,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 19:19:08,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 19:19:08,604 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 19:19:08,605 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 19:19:08,605 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048966997] [2021-11-06 19:19:08,605 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048966997] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 19:19:08,605 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 19:19:08,605 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 19:19:08,606 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544745924] [2021-11-06 19:19:08,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 19:19:08,606 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 19:19:08,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 19:19:08,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 19:19:08,607 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) [2021-11-06 19:19:14,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 19:19:14,491 INFO L93 Difference]: Finished difference Result 204122 states and 281758 transitions. [2021-11-06 19:19:14,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 19:19:14,492 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 [2021-11-06 19:19:14,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 19:19:15,361 INFO L225 Difference]: With dead ends: 204122 [2021-11-06 19:19:15,361 INFO L226 Difference]: Without dead ends: 126494 [2021-11-06 19:19:15,826 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 19:19:15,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126494 states. [2021-11-06 19:19:19,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126494 to 126437. [2021-11-06 19:19:19,217 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) [2021-11-06 19:19:19,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126437 states to 126437 states and 174454 transitions. [2021-11-06 19:19:19,895 INFO L78 Accepts]: Start accepts. Automaton has 126437 states and 174454 transitions. Word has length 290 [2021-11-06 19:19:19,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 19:19:19,897 INFO L470 AbstractCegarLoop]: Abstraction has 126437 states and 174454 transitions. [2021-11-06 19:19:19,897 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) [2021-11-06 19:19:19,897 INFO L276 IsEmpty]: Start isEmpty. Operand 126437 states and 174454 transitions. [2021-11-06 19:19:19,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2021-11-06 19:19:19,916 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 19:19:19,916 INFO L513 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] [2021-11-06 19:19:19,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-06 19:19:19,917 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)] === [2021-11-06 19:19:19,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 19:19:19,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1899315257, now seen corresponding path program 1 times [2021-11-06 19:19:19,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 19:19:19,922 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162157801] [2021-11-06 19:19:19,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 19:19:19,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 19:19:21,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 19:19:21,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-11-06 19:19:21,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 19:19:21,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 19:19:21,744 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 19:19:21,744 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162157801] [2021-11-06 19:19:21,744 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162157801] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 19:19:21,744 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 19:19:21,745 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 19:19:21,745 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225082773] [2021-11-06 19:19:21,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 19:19:21,746 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 19:19:21,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 19:19:21,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 19:19:21,747 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) [2021-11-06 19:20:10,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 19:20:10,543 INFO L93 Difference]: Finished difference Result 382895 states and 530956 transitions. [2021-11-06 19:20:10,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 19:20:10,544 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 [2021-11-06 19:20:10,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 19:20:11,994 INFO L225 Difference]: With dead ends: 382895 [2021-11-06 19:20:11,994 INFO L226 Difference]: Without dead ends: 257102 [2021-11-06 19:20:12,621 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 19:20:12,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257102 states. [2021-11-06 19:20:18,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257102 to 241689. [2021-11-06 19:20:19,020 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) [2021-11-06 19:20:19,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241689 states to 241689 states and 333694 transitions. [2021-11-06 19:20:20,313 INFO L78 Accepts]: Start accepts. Automaton has 241689 states and 333694 transitions. Word has length 292 [2021-11-06 19:20:20,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 19:20:20,315 INFO L470 AbstractCegarLoop]: Abstraction has 241689 states and 333694 transitions. [2021-11-06 19:20:20,315 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) [2021-11-06 19:20:20,316 INFO L276 IsEmpty]: Start isEmpty. Operand 241689 states and 333694 transitions. [2021-11-06 19:20:20,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2021-11-06 19:20:20,358 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 19:20:20,358 INFO L513 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] [2021-11-06 19:20:20,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-06 19:20:20,360 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)] === [2021-11-06 19:20:20,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 19:20:20,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1573197835, now seen corresponding path program 1 times [2021-11-06 19:20:20,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 19:20:20,361 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332830461] [2021-11-06 19:20:20,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 19:20:20,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 19:20:20,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat