./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--scsi--fcoe--fcoe.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c36dfa3b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--scsi--fcoe--fcoe.ko-entry_point.cil.out.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 a3ff87c3e5fb8bea0460b71e9b9f7b5386599503dd506c0803db0e63f978b184 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-c36dfa3 [2021-11-04 06:18:34,847 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-04 06:18:34,848 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-04 06:18:34,894 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-04 06:18:34,894 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-04 06:18:34,897 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-04 06:18:34,898 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-04 06:18:34,902 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-04 06:18:34,903 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-04 06:18:34,906 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-04 06:18:34,907 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-04 06:18:34,908 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-04 06:18:34,908 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-04 06:18:34,910 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-04 06:18:34,912 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-04 06:18:34,916 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-04 06:18:34,918 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-04 06:18:34,918 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-04 06:18:34,919 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-04 06:18:34,922 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-04 06:18:34,923 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-04 06:18:34,924 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-04 06:18:34,925 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-04 06:18:34,926 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-04 06:18:34,930 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-04 06:18:34,932 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-04 06:18:34,932 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-04 06:18:34,933 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-04 06:18:34,934 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-04 06:18:34,934 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-04 06:18:34,934 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-04 06:18:34,935 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-04 06:18:34,936 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-04 06:18:34,937 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-04 06:18:34,938 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-04 06:18:34,938 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-04 06:18:34,938 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-04 06:18:34,938 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-04 06:18:34,939 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-04 06:18:34,940 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-04 06:18:34,940 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-04 06:18:34,941 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-04 06:18:34,965 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-04 06:18:34,965 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-04 06:18:34,966 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-04 06:18:34,966 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-04 06:18:34,967 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-04 06:18:34,967 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-04 06:18:34,967 INFO L138 SettingsManager]: * Use SBE=true [2021-11-04 06:18:34,967 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-04 06:18:34,967 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-04 06:18:34,968 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-04 06:18:34,968 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-04 06:18:34,968 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-04 06:18:34,969 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-04 06:18:34,969 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-04 06:18:34,969 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-04 06:18:34,969 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-04 06:18:34,969 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-04 06:18:34,969 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-04 06:18:34,970 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-04 06:18:34,970 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 06:18:34,970 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-04 06:18:34,970 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-04 06:18:34,970 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-04 06:18:34,970 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-04 06:18:34,971 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-04 06:18:34,971 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-04 06:18:34,971 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-04 06:18:34,972 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-04 06:18:34,972 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-04 06:18:34,972 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a3ff87c3e5fb8bea0460b71e9b9f7b5386599503dd506c0803db0e63f978b184 [2021-11-04 06:18:35,172 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-04 06:18:35,199 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-04 06:18:35,202 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-04 06:18:35,203 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-04 06:18:35,204 INFO L275 PluginConnector]: CDTParser initialized [2021-11-04 06:18:35,205 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--scsi--fcoe--fcoe.ko-entry_point.cil.out.i [2021-11-04 06:18:35,246 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/513299726/4c41092f5a0244aaa02c61ac51abcbae/FLAGeaf3f26b4 [2021-11-04 06:18:35,888 INFO L306 CDTParser]: Found 1 translation units. [2021-11-04 06:18:35,889 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--scsi--fcoe--fcoe.ko-entry_point.cil.out.i [2021-11-04 06:18:36,001 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/513299726/4c41092f5a0244aaa02c61ac51abcbae/FLAGeaf3f26b4 [2021-11-04 06:18:36,280 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/513299726/4c41092f5a0244aaa02c61ac51abcbae [2021-11-04 06:18:36,281 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-04 06:18:36,283 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-04 06:18:36,286 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-04 06:18:36,286 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-04 06:18:36,292 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-04 06:18:36,293 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 06:18:36" (1/1) ... [2021-11-04 06:18:36,294 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77912944 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:18:36, skipping insertion in model container [2021-11-04 06:18:36,294 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 06:18:36" (1/1) ... [2021-11-04 06:18:36,300 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-04 06:18:36,475 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-04 06:18:38,368 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-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--scsi--fcoe--fcoe.ko-entry_point.cil.out.i[413960,413973] [2021-11-04 06:18:38,421 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 06:18:38,456 INFO L203 MainTranslator]: Completed pre-run [2021-11-04 06:18:38,801 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-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--scsi--fcoe--fcoe.ko-entry_point.cil.out.i[413960,413973] [2021-11-04 06:18:38,811 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 06:18:38,915 INFO L208 MainTranslator]: Completed translation [2021-11-04 06:18:38,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:18:38 WrapperNode [2021-11-04 06:18:38,916 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-04 06:18:38,917 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-04 06:18:38,917 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-04 06:18:38,918 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-04 06:18:38,932 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:18:38" (1/1) ... [2021-11-04 06:18:39,032 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:18:38" (1/1) ... [2021-11-04 06:18:39,322 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-04 06:18:39,324 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-04 06:18:39,324 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-04 06:18:39,324 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-04 06:18:39,330 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:18:38" (1/1) ... [2021-11-04 06:18:39,330 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:18:38" (1/1) ... [2021-11-04 06:18:39,387 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:18:38" (1/1) ... [2021-11-04 06:18:39,388 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:18:38" (1/1) ... [2021-11-04 06:18:39,535 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:18:38" (1/1) ... [2021-11-04 06:18:39,573 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:18:38" (1/1) ... [2021-11-04 06:18:39,687 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:18:38" (1/1) ... [2021-11-04 06:18:39,755 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-04 06:18:39,757 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-04 06:18:39,757 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-04 06:18:39,757 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-04 06:18:39,758 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:18:38" (1/1) ... [2021-11-04 06:18:39,763 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 06:18:39,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 06:18:39,786 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-04 06:18:39,815 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-04 06:18:39,833 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_ddp_done [2021-11-04 06:18:39,833 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_ddp_done [2021-11-04 06:18:39,833 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-04 06:18:39,834 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_vport_destroy [2021-11-04 06:18:39,834 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_vport_destroy [2021-11-04 06:18:39,834 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_ctlr_alloc [2021-11-04 06:18:39,834 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_ctlr_alloc [2021-11-04 06:18:39,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-04 06:18:39,834 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_interface_remove [2021-11-04 06:18:39,834 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_interface_remove [2021-11-04 06:18:39,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-04 06:18:39,834 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_ddp_target [2021-11-04 06:18:39,835 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_ddp_target [2021-11-04 06:18:39,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-04 06:18:39,835 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_ddp_setup [2021-11-04 06:18:39,835 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_ddp_setup [2021-11-04 06:18:39,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-04 06:18:39,835 INFO L130 BoogieDeclarations]: Found specification of procedure _fcoe_create [2021-11-04 06:18:39,835 INFO L138 BoogieDeclarations]: Found implementation of procedure _fcoe_create [2021-11-04 06:18:39,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-04 06:18:39,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-04 06:18:39,836 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-04 06:18:39,836 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-04 06:18:39,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-04 06:18:39,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-04 06:18:39,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-04 06:18:39,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-04 06:18:39,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-04 06:18:39,836 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-04 06:18:39,836 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_17 [2021-11-04 06:18:39,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_17 [2021-11-04 06:18:39,837 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_interface_create [2021-11-04 06:18:39,837 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_interface_create [2021-11-04 06:18:39,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-04 06:18:39,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-04 06:18:39,837 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2021-11-04 06:18:39,837 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2021-11-04 06:18:39,837 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_interface_cleanup [2021-11-04 06:18:39,837 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_interface_cleanup [2021-11-04 06:18:39,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-04 06:18:39,838 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u16~0~X~$Pointer$~X~int~TO~int [2021-11-04 06:18:39,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u16~0~X~$Pointer$~X~int~TO~int [2021-11-04 06:18:39,838 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u16~0~TO~int [2021-11-04 06:18:39,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u16~0~TO~int [2021-11-04 06:18:39,838 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_if_destroy [2021-11-04 06:18:39,838 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_if_destroy [2021-11-04 06:18:39,838 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_interface_setup [2021-11-04 06:18:39,838 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_interface_setup [2021-11-04 06:18:39,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-04 06:18:39,839 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_destroy_work [2021-11-04 06:18:39,839 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_destroy_work [2021-11-04 06:18:39,839 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2021-11-04 06:18:39,839 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2021-11-04 06:18:39,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-04 06:18:43,344 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-04 06:18:43,345 INFO L299 CfgBuilder]: Removed 3018 assume(true) statements. [2021-11-04 06:18:43,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 06:18:43 BoogieIcfgContainer [2021-11-04 06:18:43,350 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-04 06:18:43,351 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-04 06:18:43,351 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-04 06:18:43,353 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-04 06:18:43,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.11 06:18:36" (1/3) ... [2021-11-04 06:18:43,354 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6777d53b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 06:18:43, skipping insertion in model container [2021-11-04 06:18:43,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:18:38" (2/3) ... [2021-11-04 06:18:43,354 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6777d53b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 06:18:43, skipping insertion in model container [2021-11-04 06:18:43,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 06:18:43" (3/3) ... [2021-11-04 06:18:43,355 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--scsi--fcoe--fcoe.ko-entry_point.cil.out.i [2021-11-04 06:18:43,358 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-04 06:18:43,359 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-04 06:18:43,396 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-04 06:18:43,400 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-04 06:18:43,401 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-04 06:18:43,452 INFO L276 IsEmpty]: Start isEmpty. Operand has 3836 states, 3773 states have (on average 1.5096739994699178) internal successors, (5696), 3782 states have internal predecessors, (5696), 41 states have call successors, (41), 18 states have call predecessors, (41), 18 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2021-11-04 06:18:43,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-11-04 06:18:43,465 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 06:18:43,466 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] [2021-11-04 06:18:43,466 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [fcoe_interface_createErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, fcoe_interface_cleanupErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-04 06:18:43,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 06:18:43,470 INFO L85 PathProgramCache]: Analyzing trace with hash -352933849, now seen corresponding path program 1 times [2021-11-04 06:18:43,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 06:18:43,478 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551397152] [2021-11-04 06:18:43,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 06:18:43,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 06:18:43,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 06:18:43,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 06:18:43,923 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 06:18:43,924 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551397152] [2021-11-04 06:18:43,924 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551397152] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 06:18:43,924 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 06:18:43,924 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-04 06:18:43,925 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872701573] [2021-11-04 06:18:43,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 06:18:43,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-04 06:18:43,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 06:18:43,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-04 06:18:43,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-04 06:18:43,955 INFO L87 Difference]: Start difference. First operand has 3836 states, 3773 states have (on average 1.5096739994699178) internal successors, (5696), 3782 states have internal predecessors, (5696), 41 states have call successors, (41), 18 states have call predecessors, (41), 18 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) Second operand has 2 states, 2 states have (on average 63.5) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 06:18:46,002 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:18:49,509 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:18:55,009 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:18:57,691 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:18:58,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 06:18:58,797 INFO L93 Difference]: Finished difference Result 7668 states and 11583 transitions. [2021-11-04 06:18:58,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-04 06:18:58,799 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 63.5) internal successors, (127), 2 states have internal predecessors, (127), 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 127 [2021-11-04 06:18:58,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 06:18:58,830 INFO L225 Difference]: With dead ends: 7668 [2021-11-04 06:18:58,830 INFO L226 Difference]: Without dead ends: 3819 [2021-11-04 06:18:58,846 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-04 06:18:58,851 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5556 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13016.68ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 5560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.91ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5556 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14582.97ms IncrementalHoareTripleChecker+Time [2021-11-04 06:18:58,852 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 95 Invalid, 5560 Unknown, 0 Unchecked, 11.91ms Time], IncrementalHoareTripleChecker [0 Valid, 5556 Invalid, 4 Unknown, 0 Unchecked, 14582.97ms Time] [2021-11-04 06:18:58,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3819 states. [2021-11-04 06:18:58,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3819 to 3819. [2021-11-04 06:18:58,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3819 states, 3757 states have (on average 1.4753792919882884) internal successors, (5543), 3765 states have internal predecessors, (5543), 41 states have call successors, (41), 18 states have call predecessors, (41), 18 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2021-11-04 06:18:59,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3819 states to 3819 states and 5625 transitions. [2021-11-04 06:18:59,007 INFO L78 Accepts]: Start accepts. Automaton has 3819 states and 5625 transitions. Word has length 127 [2021-11-04 06:18:59,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 06:18:59,011 INFO L470 AbstractCegarLoop]: Abstraction has 3819 states and 5625 transitions. [2021-11-04 06:18:59,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 63.5) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 06:18:59,011 INFO L276 IsEmpty]: Start isEmpty. Operand 3819 states and 5625 transitions. [2021-11-04 06:18:59,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-11-04 06:18:59,018 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 06:18:59,020 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] [2021-11-04 06:18:59,020 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-04 06:18:59,021 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [fcoe_interface_createErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, fcoe_interface_cleanupErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-04 06:18:59,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 06:18:59,024 INFO L85 PathProgramCache]: Analyzing trace with hash 24647893, now seen corresponding path program 1 times [2021-11-04 06:18:59,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 06:18:59,025 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15390142] [2021-11-04 06:18:59,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 06:18:59,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 06:18:59,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 06:18:59,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 06:18:59,325 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 06:18:59,325 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15390142] [2021-11-04 06:18:59,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15390142] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 06:18:59,326 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 06:18:59,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 06:18:59,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541757532] [2021-11-04 06:18:59,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 06:18:59,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 06:18:59,328 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 06:18:59,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 06:18:59,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 06:18:59,329 INFO L87 Difference]: Start difference. First operand 3819 states and 5625 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 06:19:04,031 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:19:11,625 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:19:14,585 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:19:16,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 06:19:16,276 INFO L93 Difference]: Finished difference Result 7592 states and 11205 transitions. [2021-11-04 06:19:16,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 06:19:16,276 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 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 127 [2021-11-04 06:19:16,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 06:19:16,289 INFO L225 Difference]: With dead ends: 7592 [2021-11-04 06:19:16,289 INFO L226 Difference]: Without dead ends: 3821 [2021-11-04 06:19:16,296 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.42ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 06:19:16,296 INFO L933 BasicCegarLoop]: 82 mSDtfsCounter, 0 mSDsluCounter, 5553 mSDsCounter, 0 mSdLazyCounter, 11078 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14668.17ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 11083 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 34.60ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11078 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16681.06ms IncrementalHoareTripleChecker+Time [2021-11-04 06:19:16,297 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 164 Invalid, 11083 Unknown, 0 Unchecked, 34.60ms Time], IncrementalHoareTripleChecker [2 Valid, 11078 Invalid, 3 Unknown, 0 Unchecked, 16681.06ms Time] [2021-11-04 06:19:16,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3821 states. [2021-11-04 06:19:16,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3821 to 3821. [2021-11-04 06:19:16,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3821 states, 3759 states have (on average 1.4751263633945197) internal successors, (5545), 3767 states have internal predecessors, (5545), 41 states have call successors, (41), 18 states have call predecessors, (41), 18 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2021-11-04 06:19:16,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3821 states to 3821 states and 5627 transitions. [2021-11-04 06:19:16,368 INFO L78 Accepts]: Start accepts. Automaton has 3821 states and 5627 transitions. Word has length 127 [2021-11-04 06:19:16,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 06:19:16,369 INFO L470 AbstractCegarLoop]: Abstraction has 3821 states and 5627 transitions. [2021-11-04 06:19:16,369 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 06:19:16,369 INFO L276 IsEmpty]: Start isEmpty. Operand 3821 states and 5627 transitions. [2021-11-04 06:19:16,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-04 06:19:16,371 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 06:19:16,372 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] [2021-11-04 06:19:16,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-04 06:19:16,372 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [fcoe_interface_createErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, fcoe_interface_cleanupErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-04 06:19:16,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 06:19:16,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1985418517, now seen corresponding path program 1 times [2021-11-04 06:19:16,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 06:19:16,373 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331350504] [2021-11-04 06:19:16,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 06:19:16,374 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 06:19:16,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 06:19:16,579 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-04 06:19:16,580 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 06:19:16,581 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331350504] [2021-11-04 06:19:16,581 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331350504] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 06:19:16,581 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 06:19:16,581 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 06:19:16,581 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994897957] [2021-11-04 06:19:16,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 06:19:16,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 06:19:16,583 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 06:19:16,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 06:19:16,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 06:19:16,584 INFO L87 Difference]: Start difference. First operand 3821 states and 5627 transitions. Second operand has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 06:19:18,452 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:19:19,617 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:19:23,616 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:19:31,149 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:19:34,047 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:19:35,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 06:19:35,630 INFO L93 Difference]: Finished difference Result 7600 states and 11220 transitions. [2021-11-04 06:19:35,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 06:19:35,630 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 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 129 [2021-11-04 06:19:35,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 06:19:35,645 INFO L225 Difference]: With dead ends: 7600 [2021-11-04 06:19:35,645 INFO L226 Difference]: Without dead ends: 3831 [2021-11-04 06:19:35,654 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.39ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 06:19:35,658 INFO L933 BasicCegarLoop]: 82 mSDtfsCounter, 0 mSDsluCounter, 5553 mSDsCounter, 0 mSdLazyCounter, 11070 mSolverCounterSat, 18 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16964.83ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 11091 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.01ms SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 11070 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18830.91ms IncrementalHoareTripleChecker+Time [2021-11-04 06:19:35,658 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 164 Invalid, 11091 Unknown, 0 Unchecked, 21.01ms Time], IncrementalHoareTripleChecker [18 Valid, 11070 Invalid, 3 Unknown, 0 Unchecked, 18830.91ms Time] [2021-11-04 06:19:35,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3831 states. [2021-11-04 06:19:35,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3831 to 3831. [2021-11-04 06:19:35,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3831 states, 3769 states have (on average 1.4738657468824623) internal successors, (5555), 3777 states have internal predecessors, (5555), 41 states have call successors, (41), 18 states have call predecessors, (41), 18 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2021-11-04 06:19:35,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3831 states to 3831 states and 5637 transitions. [2021-11-04 06:19:35,734 INFO L78 Accepts]: Start accepts. Automaton has 3831 states and 5637 transitions. Word has length 129 [2021-11-04 06:19:35,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 06:19:35,734 INFO L470 AbstractCegarLoop]: Abstraction has 3831 states and 5637 transitions. [2021-11-04 06:19:35,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 06:19:35,735 INFO L276 IsEmpty]: Start isEmpty. Operand 3831 states and 5637 transitions. [2021-11-04 06:19:35,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-11-04 06:19:35,737 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 06:19:35,738 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] [2021-11-04 06:19:35,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-04 06:19:35,738 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [fcoe_interface_createErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, fcoe_interface_cleanupErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-04 06:19:35,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 06:19:35,738 INFO L85 PathProgramCache]: Analyzing trace with hash -966272495, now seen corresponding path program 1 times [2021-11-04 06:19:35,739 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 06:19:35,739 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364385160] [2021-11-04 06:19:35,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 06:19:35,739 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 06:19:35,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 06:19:35,987 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-04 06:19:35,988 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 06:19:35,988 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364385160] [2021-11-04 06:19:35,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364385160] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 06:19:35,988 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 06:19:35,988 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 06:19:35,988 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574683613] [2021-11-04 06:19:35,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 06:19:35,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 06:19:35,989 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 06:19:35,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 06:19:35,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 06:19:35,990 INFO L87 Difference]: Start difference. First operand 3831 states and 5637 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 06:19:40,538 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:19:42,966 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:19:50,466 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:19:53,383 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:19:55,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 06:19:55,069 INFO L93 Difference]: Finished difference Result 7608 states and 11222 transitions. [2021-11-04 06:19:55,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 06:19:55,070 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 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 139 [2021-11-04 06:19:55,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 06:19:55,085 INFO L225 Difference]: With dead ends: 7608 [2021-11-04 06:19:55,085 INFO L226 Difference]: Without dead ends: 3837 [2021-11-04 06:19:55,093 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.46ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 06:19:55,094 INFO L933 BasicCegarLoop]: 82 mSDtfsCounter, 0 mSDsluCounter, 5553 mSDsCounter, 0 mSdLazyCounter, 11073 mSolverCounterSat, 10 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16896.71ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 11087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.11ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 11073 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18899.24ms IncrementalHoareTripleChecker+Time [2021-11-04 06:19:55,094 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 164 Invalid, 11087 Unknown, 0 Unchecked, 16.11ms Time], IncrementalHoareTripleChecker [10 Valid, 11073 Invalid, 4 Unknown, 0 Unchecked, 18899.24ms Time] [2021-11-04 06:19:55,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3837 states. [2021-11-04 06:19:55,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3837 to 3837. [2021-11-04 06:19:55,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3837 states, 3775 states have (on average 1.4731125827814568) internal successors, (5561), 3783 states have internal predecessors, (5561), 41 states have call successors, (41), 18 states have call predecessors, (41), 18 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2021-11-04 06:19:55,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3837 states to 3837 states and 5643 transitions. [2021-11-04 06:19:55,157 INFO L78 Accepts]: Start accepts. Automaton has 3837 states and 5643 transitions. Word has length 139 [2021-11-04 06:19:55,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 06:19:55,157 INFO L470 AbstractCegarLoop]: Abstraction has 3837 states and 5643 transitions. [2021-11-04 06:19:55,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 06:19:55,157 INFO L276 IsEmpty]: Start isEmpty. Operand 3837 states and 5643 transitions. [2021-11-04 06:19:55,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-11-04 06:19:55,159 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 06:19:55,159 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] [2021-11-04 06:19:55,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-04 06:19:55,160 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [fcoe_interface_createErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, fcoe_interface_cleanupErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-04 06:19:55,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 06:19:55,160 INFO L85 PathProgramCache]: Analyzing trace with hash -2117039655, now seen corresponding path program 1 times [2021-11-04 06:19:55,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 06:19:55,161 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274094463] [2021-11-04 06:19:55,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 06:19:55,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 06:19:55,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 06:19:55,330 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-04 06:19:55,331 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 06:19:55,331 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274094463] [2021-11-04 06:19:55,331 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274094463] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 06:19:55,331 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 06:19:55,331 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 06:19:55,331 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102454195] [2021-11-04 06:19:55,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 06:19:55,332 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 06:19:55,332 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 06:19:55,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 06:19:55,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 06:19:55,333 INFO L87 Difference]: Start difference. First operand 3837 states and 5643 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 06:19:59,546 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:20:02,104 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:20:09,344 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:20:12,107 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:20:14,291 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:20:15,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 06:20:15,937 INFO L93 Difference]: Finished difference Result 7605 states and 11213 transitions. [2021-11-04 06:20:15,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 06:20:15,937 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 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 143 [2021-11-04 06:20:15,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 06:20:15,950 INFO L225 Difference]: With dead ends: 7605 [2021-11-04 06:20:15,950 INFO L226 Difference]: Without dead ends: 3840 [2021-11-04 06:20:15,956 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.38ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 06:20:15,957 INFO L933 BasicCegarLoop]: 82 mSDtfsCounter, 0 mSDsluCounter, 5553 mSDsCounter, 0 mSdLazyCounter, 11075 mSolverCounterSat, 4 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18350.41ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 11084 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.34ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11075 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20431.66ms IncrementalHoareTripleChecker+Time [2021-11-04 06:20:15,957 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 164 Invalid, 11084 Unknown, 0 Unchecked, 15.34ms Time], IncrementalHoareTripleChecker [4 Valid, 11075 Invalid, 5 Unknown, 0 Unchecked, 20431.66ms Time] [2021-11-04 06:20:15,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3840 states. [2021-11-04 06:20:16,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3840 to 3840. [2021-11-04 06:20:16,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3840 states, 3778 states have (on average 1.4727368978295394) internal successors, (5564), 3786 states have internal predecessors, (5564), 41 states have call successors, (41), 18 states have call predecessors, (41), 18 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2021-11-04 06:20:16,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3840 states to 3840 states and 5646 transitions. [2021-11-04 06:20:16,014 INFO L78 Accepts]: Start accepts. Automaton has 3840 states and 5646 transitions. Word has length 143 [2021-11-04 06:20:16,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 06:20:16,014 INFO L470 AbstractCegarLoop]: Abstraction has 3840 states and 5646 transitions. [2021-11-04 06:20:16,015 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 06:20:16,015 INFO L276 IsEmpty]: Start isEmpty. Operand 3840 states and 5646 transitions. [2021-11-04 06:20:16,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2021-11-04 06:20:16,017 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 06:20:16,017 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] [2021-11-04 06:20:16,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-04 06:20:16,017 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [fcoe_interface_createErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, fcoe_interface_cleanupErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-04 06:20:16,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 06:20:16,018 INFO L85 PathProgramCache]: Analyzing trace with hash 903382979, now seen corresponding path program 1 times [2021-11-04 06:20:16,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 06:20:16,018 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244754886] [2021-11-04 06:20:16,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 06:20:16,018 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 06:20:16,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 06:20:16,274 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-04 06:20:16,274 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 06:20:16,275 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244754886] [2021-11-04 06:20:16,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244754886] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 06:20:16,275 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 06:20:16,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-04 06:20:16,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217252004] [2021-11-04 06:20:16,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 06:20:16,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 06:20:16,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 06:20:16,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 06:20:16,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 06:20:16,276 INFO L87 Difference]: Start difference. First operand 3840 states and 5646 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 2 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 06:20:19,953 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:20:29,307 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:20:32,862 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:20:34,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 06:20:34,833 INFO L93 Difference]: Finished difference Result 10583 states and 15602 transitions. [2021-11-04 06:20:34,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 06:20:34,834 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 2 states have internal predecessors, (146), 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 146 [2021-11-04 06:20:34,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 06:20:34,874 INFO L225 Difference]: With dead ends: 10583 [2021-11-04 06:20:34,875 INFO L226 Difference]: Without dead ends: 6861 [2021-11-04 06:20:34,889 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.62ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 06:20:34,891 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 4364 mSDsluCounter, 5521 mSDsCounter, 0 mSdLazyCounter, 10962 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15975.03ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4364 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 10967 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 29.29ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10962 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18233.32ms IncrementalHoareTripleChecker+Time [2021-11-04 06:20:34,891 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4364 Valid, 239 Invalid, 10967 Unknown, 0 Unchecked, 29.29ms Time], IncrementalHoareTripleChecker [2 Valid, 10962 Invalid, 3 Unknown, 0 Unchecked, 18233.32ms Time] [2021-11-04 06:20:34,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6861 states. [2021-11-04 06:20:35,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6861 to 6854. [2021-11-04 06:20:35,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6854 states, 6733 states have (on average 1.4639833655131442) internal successors, (9857), 6748 states have internal predecessors, (9857), 82 states have call successors, (82), 36 states have call predecessors, (82), 36 states have return successors, (113), 81 states have call predecessors, (113), 82 states have call successors, (113) [2021-11-04 06:20:35,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6854 states to 6854 states and 10052 transitions. [2021-11-04 06:20:35,051 INFO L78 Accepts]: Start accepts. Automaton has 6854 states and 10052 transitions. Word has length 146 [2021-11-04 06:20:35,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 06:20:35,052 INFO L470 AbstractCegarLoop]: Abstraction has 6854 states and 10052 transitions. [2021-11-04 06:20:35,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 2 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 06:20:35,053 INFO L276 IsEmpty]: Start isEmpty. Operand 6854 states and 10052 transitions. [2021-11-04 06:20:35,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-11-04 06:20:35,056 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 06:20:35,056 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] [2021-11-04 06:20:35,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-04 06:20:35,057 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting fcoe_interface_createErr0ASSERT_VIOLATIONERROR_FUNCTION === [fcoe_interface_createErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, fcoe_interface_cleanupErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-04 06:20:35,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 06:20:35,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1417703949, now seen corresponding path program 1 times [2021-11-04 06:20:35,058 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 06:20:35,058 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975544071] [2021-11-04 06:20:35,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 06:20:35,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 06:20:35,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 06:20:35,243 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-04 06:20:35,244 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 06:20:35,244 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975544071] [2021-11-04 06:20:35,244 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975544071] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 06:20:35,244 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 06:20:35,245 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 06:20:35,245 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761505933] [2021-11-04 06:20:35,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 06:20:35,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 06:20:35,246 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 06:20:35,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 06:20:35,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 06:20:35,247 INFO L87 Difference]: Start difference. First operand 6854 states and 10052 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 06:20:39,178 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:20:45,754 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:20:52,454 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:20:53,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 06:20:53,580 INFO L93 Difference]: Finished difference Result 19461 states and 28531 transitions. [2021-11-04 06:20:53,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 06:20:53,580 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 166 [2021-11-04 06:20:53,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 06:20:53,617 INFO L225 Difference]: With dead ends: 19461 [2021-11-04 06:20:53,618 INFO L226 Difference]: Without dead ends: 12732 [2021-11-04 06:20:53,636 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.78ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 06:20:53,637 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 4391 mSDsluCounter, 5476 mSDsCounter, 0 mSdLazyCounter, 10963 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15869.03ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4392 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 10968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 18.55ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10963 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17994.80ms IncrementalHoareTripleChecker+Time [2021-11-04 06:20:53,638 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4392 Valid, 203 Invalid, 10968 Unknown, 0 Unchecked, 18.55ms Time], IncrementalHoareTripleChecker [2 Valid, 10963 Invalid, 3 Unknown, 0 Unchecked, 17994.80ms Time] [2021-11-04 06:20:53,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12732 states. [2021-11-04 06:20:53,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12732 to 12652. [2021-11-04 06:20:53,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12652 states, 12417 states have (on average 1.4626721430297174) internal successors, (18162), 12446 states have internal predecessors, (18162), 160 states have call successors, (160), 72 states have call predecessors, (160), 72 states have return successors, (222), 157 states have call predecessors, (222), 160 states have call successors, (222) [2021-11-04 06:20:53,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12652 states to 12652 states and 18544 transitions. [2021-11-04 06:20:53,860 INFO L78 Accepts]: Start accepts. Automaton has 12652 states and 18544 transitions. Word has length 166 [2021-11-04 06:20:53,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 06:20:53,861 INFO L470 AbstractCegarLoop]: Abstraction has 12652 states and 18544 transitions. [2021-11-04 06:20:53,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 06:20:53,861 INFO L276 IsEmpty]: Start isEmpty. Operand 12652 states and 18544 transitions. [2021-11-04 06:20:53,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-11-04 06:20:53,871 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 06:20:53,871 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] [2021-11-04 06:20:53,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-04 06:20:53,872 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [fcoe_interface_createErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, fcoe_interface_cleanupErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-04 06:20:53,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 06:20:53,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1683259840, now seen corresponding path program 1 times [2021-11-04 06:20:53,873 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 06:20:53,873 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032753294] [2021-11-04 06:20:53,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 06:20:53,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 06:20:54,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 06:20:54,095 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-04 06:20:54,095 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 06:20:54,095 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032753294] [2021-11-04 06:20:54,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032753294] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 06:20:54,095 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 06:20:54,095 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 06:20:54,096 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126958653] [2021-11-04 06:20:54,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 06:20:54,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 06:20:54,096 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 06:20:54,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 06:20:54,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 06:20:54,097 INFO L87 Difference]: Start difference. First operand 12652 states and 18544 transitions. Second operand has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 06:20:56,129 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 [] [2021-11-04 06:21:02,317 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:21:04,746 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:21:13,040 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:21:14,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 06:21:14,511 INFO L93 Difference]: Finished difference Result 36406 states and 53458 transitions. [2021-11-04 06:21:14,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 06:21:14,512 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 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 191 [2021-11-04 06:21:14,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 06:21:14,574 INFO L225 Difference]: With dead ends: 36406 [2021-11-04 06:21:14,574 INFO L226 Difference]: Without dead ends: 23879 [2021-11-04 06:21:14,599 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.12ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 06:21:14,600 INFO L933 BasicCegarLoop]: 116 mSDtfsCounter, 4173 mSDsluCounter, 5594 mSDsCounter, 0 mSdLazyCounter, 11177 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17612.32ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4175 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 11182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.27ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11177 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19805.52ms IncrementalHoareTripleChecker+Time [2021-11-04 06:21:14,600 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4175 Valid, 198 Invalid, 11182 Unknown, 0 Unchecked, 19.27ms Time], IncrementalHoareTripleChecker [1 Valid, 11177 Invalid, 4 Unknown, 0 Unchecked, 19805.52ms Time] [2021-11-04 06:21:14,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23879 states. [2021-11-04 06:21:14,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23879 to 23826. [2021-11-04 06:21:14,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23826 states, 23415 states have (on average 1.465214606021781) internal successors, (34308), 23472 states have internal predecessors, (34308), 284 states have call successors, (284), 124 states have call predecessors, (284), 124 states have return successors, (412), 277 states have call predecessors, (412), 284 states have call successors, (412) [2021-11-04 06:21:14,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23826 states to 23826 states and 35004 transitions. [2021-11-04 06:21:14,981 INFO L78 Accepts]: Start accepts. Automaton has 23826 states and 35004 transitions. Word has length 191 [2021-11-04 06:21:14,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 06:21:14,982 INFO L470 AbstractCegarLoop]: Abstraction has 23826 states and 35004 transitions. [2021-11-04 06:21:14,982 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 06:21:14,982 INFO L276 IsEmpty]: Start isEmpty. Operand 23826 states and 35004 transitions. [2021-11-04 06:21:14,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2021-11-04 06:21:14,988 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 06:21:14,988 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] [2021-11-04 06:21:14,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-04 06:21:14,988 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting fcoe_interface_createErr0ASSERT_VIOLATIONERROR_FUNCTION === [fcoe_interface_createErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, fcoe_interface_cleanupErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-04 06:21:14,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 06:21:14,989 INFO L85 PathProgramCache]: Analyzing trace with hash -1757196962, now seen corresponding path program 1 times [2021-11-04 06:21:14,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 06:21:14,989 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246414162] [2021-11-04 06:21:14,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 06:21:14,989 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 06:21:15,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 06:21:15,179 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-04 06:21:15,179 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 06:21:15,180 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246414162] [2021-11-04 06:21:15,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246414162] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 06:21:15,180 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 06:21:15,180 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 06:21:15,180 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779397291] [2021-11-04 06:21:15,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 06:21:15,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 06:21:15,181 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 06:21:15,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 06:21:15,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 06:21:15,182 INFO L87 Difference]: Start difference. First operand 23826 states and 35004 transitions. Second operand has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 1 states have call successors, (7), 1 states have call predecessors, (7), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 06:21:21,195 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:21:29,447 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:21:32,254 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:21:34,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 06:21:34,109 INFO L93 Difference]: Finished difference Result 66928 states and 98966 transitions. [2021-11-04 06:21:34,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 06:21:34,110 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 1 states have call successors, (7), 1 states have call predecessors, (7), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 208 [2021-11-04 06:21:34,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 06:21:34,246 INFO L225 Difference]: With dead ends: 66928 [2021-11-04 06:21:34,247 INFO L226 Difference]: Without dead ends: 43227 [2021-11-04 06:21:34,294 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.70ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 06:21:34,296 INFO L933 BasicCegarLoop]: 134 mSDtfsCounter, 3917 mSDsluCounter, 5461 mSDsCounter, 0 mSdLazyCounter, 11228 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15913.40ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3919 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 11233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.55ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11228 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18043.15ms IncrementalHoareTripleChecker+Time [2021-11-04 06:21:34,296 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3919 Valid, 216 Invalid, 11233 Unknown, 0 Unchecked, 20.55ms Time], IncrementalHoareTripleChecker [2 Valid, 11228 Invalid, 3 Unknown, 0 Unchecked, 18043.15ms Time] [2021-11-04 06:21:34,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43227 states. [2021-11-04 06:21:34,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43227 to 43138. [2021-11-04 06:21:34,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43138 states, 42327 states have (on average 1.4798119403690315) internal successors, (62636), 42440 states have internal predecessors, (62636), 560 states have call successors, (560), 248 states have call predecessors, (560), 248 states have return successors, (816), 545 states have call predecessors, (816), 560 states have call successors, (816) [2021-11-04 06:21:35,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43138 states to 43138 states and 64012 transitions. [2021-11-04 06:21:35,002 INFO L78 Accepts]: Start accepts. Automaton has 43138 states and 64012 transitions. Word has length 208 [2021-11-04 06:21:35,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 06:21:35,003 INFO L470 AbstractCegarLoop]: Abstraction has 43138 states and 64012 transitions. [2021-11-04 06:21:35,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 1 states have call successors, (7), 1 states have call predecessors, (7), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 06:21:35,003 INFO L276 IsEmpty]: Start isEmpty. Operand 43138 states and 64012 transitions. [2021-11-04 06:21:35,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-11-04 06:21:35,008 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 06:21:35,008 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] [2021-11-04 06:21:35,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-04 06:21:35,008 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting fcoe_interface_cleanupErr0ASSERT_VIOLATIONERROR_FUNCTION === [fcoe_interface_createErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, fcoe_interface_cleanupErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-04 06:21:35,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 06:21:35,009 INFO L85 PathProgramCache]: Analyzing trace with hash -220565578, now seen corresponding path program 1 times [2021-11-04 06:21:35,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 06:21:35,009 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124136213] [2021-11-04 06:21:35,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 06:21:35,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 06:21:35,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 06:21:35,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-11-04 06:21:35,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 06:21:35,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-04 06:21:35,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 06:21:35,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-04 06:21:35,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 06:21:35,534 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-04 06:21:35,534 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 06:21:35,534 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124136213] [2021-11-04 06:21:35,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124136213] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 06:21:35,535 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 06:21:35,535 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-04 06:21:35,535 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785716609] [2021-11-04 06:21:35,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 06:21:35,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-04 06:21:35,536 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 06:21:35,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-04 06:21:35,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-04 06:21:35,536 INFO L87 Difference]: Start difference. First operand 43138 states and 64012 transitions. Second operand has 7 states, 7 states have (on average 28.857142857142858) internal successors, (202), 6 states have internal predecessors, (202), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-04 06:21:36,604 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:21:38,571 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:21:47,937 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:22:00,905 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:22:04,894 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:22:07,269 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:22:12,439 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:22:14,592 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:22:16,721 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:22:30,833 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:22:32,955 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:22:40,233 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:22:46,246 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:22:48,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 06:22:48,747 INFO L93 Difference]: Finished difference Result 230371 states and 354693 transitions. [2021-11-04 06:22:48,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-04 06:22:48,748 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 28.857142857142858) internal successors, (202), 6 states have internal predecessors, (202), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 210 [2021-11-04 06:22:48,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 06:22:49,834 INFO L225 Difference]: With dead ends: 230371 [2021-11-04 06:22:49,834 INFO L226 Difference]: Without dead ends: 187358 [2021-11-04 06:22:50,041 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 275.97ms TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2021-11-04 06:22:50,042 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 19635 mSDsluCounter, 28283 mSDsCounter, 0 mSdLazyCounter, 39227 mSolverCounterSat, 988 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 60957.71ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 19674 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 40226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 166.06ms SdHoareTripleChecker+Time, 988 IncrementalHoareTripleChecker+Valid, 39227 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 67412.92ms IncrementalHoareTripleChecker+Time [2021-11-04 06:22:50,042 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19674 Valid, 362 Invalid, 40226 Unknown, 0 Unchecked, 166.06ms Time], IncrementalHoareTripleChecker [988 Valid, 39227 Invalid, 11 Unknown, 0 Unchecked, 67412.92ms Time] [2021-11-04 06:22:50,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187358 states. [2021-11-04 06:22:55,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187358 to 181702. [2021-11-04 06:22:55,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181702 states, 177443 states have (on average 1.4587332270081097) internal successors, (258842), 177868 states have internal predecessors, (258842), 2096 states have call successors, (2096), 704 states have call predecessors, (2096), 2160 states have return successors, (14972), 3737 states have call predecessors, (14972), 2096 states have call successors, (14972) [2021-11-04 06:22:57,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181702 states to 181702 states and 275910 transitions. [2021-11-04 06:22:57,178 INFO L78 Accepts]: Start accepts. Automaton has 181702 states and 275910 transitions. Word has length 210 [2021-11-04 06:22:57,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 06:22:57,178 INFO L470 AbstractCegarLoop]: Abstraction has 181702 states and 275910 transitions. [2021-11-04 06:22:57,179 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 28.857142857142858) internal successors, (202), 6 states have internal predecessors, (202), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-04 06:22:57,179 INFO L276 IsEmpty]: Start isEmpty. Operand 181702 states and 275910 transitions. [2021-11-04 06:22:57,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-11-04 06:22:57,212 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 06:22:57,212 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] [2021-11-04 06:22:57,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-04 06:22:57,213 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting fcoe_interface_cleanupErr0ASSERT_VIOLATIONERROR_FUNCTION === [fcoe_interface_createErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, fcoe_interface_cleanupErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-04 06:22:57,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 06:22:57,214 INFO L85 PathProgramCache]: Analyzing trace with hash -2007085931, now seen corresponding path program 1 times [2021-11-04 06:22:57,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 06:22:57,214 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371526761] [2021-11-04 06:22:57,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 06:22:57,214 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 06:22:57,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 06:22:57,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-11-04 06:22:57,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 06:22:57,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-04 06:22:57,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 06:22:57,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-04 06:22:57,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 06:22:57,734 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-04 06:22:57,734 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 06:22:57,734 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371526761] [2021-11-04 06:22:57,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371526761] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 06:22:57,735 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 06:22:57,735 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-04 06:22:57,735 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139137315] [2021-11-04 06:22:57,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 06:22:57,735 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-04 06:22:57,736 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 06:22:57,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-04 06:22:57,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-04 06:22:57,737 INFO L87 Difference]: Start difference. First operand 181702 states and 275910 transitions. Second operand has 7 states, 7 states have (on average 28.857142857142858) internal successors, (202), 6 states have internal predecessors, (202), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-04 06:22:58,889 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:23:00,494 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:23:09,509 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:23:12,627 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:23:14,998 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:23:29,020 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:23:33,557 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:23:35,679 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:23:44,983 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:23:49,208 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:23:51,364 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:23:53,582 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:24:07,399 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:24:16,079 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:24:18,324 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:24:20,478 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:24:24,391 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:24:26,553 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:24:33,621 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []