./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-43_2a-drivers--infiniband--ulp--isert--ib_isert.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e19ca921 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-43_2a-drivers--infiniband--ulp--isert--ib_isert.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 b01f589d408f6e26ea7a63733affb8614d3f46d7c24e67c8e520356eb639cf0d --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 15:08:39,666 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 15:08:39,667 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 15:08:39,698 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 15:08:39,719 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 15:08:39,720 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 15:08:39,721 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 15:08:39,722 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 15:08:39,723 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 15:08:39,724 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 15:08:39,724 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 15:08:39,725 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 15:08:39,725 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 15:08:39,726 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 15:08:39,727 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 15:08:39,727 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 15:08:39,728 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 15:08:39,729 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 15:08:39,730 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 15:08:39,731 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 15:08:39,732 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 15:08:39,733 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 15:08:39,733 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 15:08:39,734 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 15:08:39,735 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 15:08:39,736 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 15:08:39,736 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 15:08:39,737 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 15:08:39,737 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 15:08:39,738 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 15:08:39,738 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 15:08:39,738 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 15:08:39,739 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 15:08:39,739 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 15:08:39,740 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 15:08:39,740 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 15:08:39,741 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 15:08:39,741 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 15:08:39,741 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 15:08:39,742 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 15:08:39,742 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 15:08:39,743 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-22 15:08:39,761 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 15:08:39,761 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 15:08:39,761 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 15:08:39,761 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 15:08:39,762 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 15:08:39,762 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 15:08:39,763 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 15:08:39,763 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 15:08:39,763 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 15:08:39,763 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 15:08:39,764 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 15:08:39,765 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 15:08:39,765 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 15:08:39,765 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 15:08:39,765 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 15:08:39,765 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 15:08:39,765 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 15:08:39,765 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 15:08:39,766 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 15:08:39,766 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 15:08:39,766 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 15:08:39,766 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 15:08:39,766 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 15:08:39,766 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 15:08:39,766 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 15:08:39,767 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 15:08:39,767 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 15:08:39,767 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 15:08:39,767 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 15:08:39,767 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 15:08:39,767 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 15:08:39,767 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b01f589d408f6e26ea7a63733affb8614d3f46d7c24e67c8e520356eb639cf0d [2021-12-22 15:08:39,968 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 15:08:39,995 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 15:08:39,997 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 15:08:39,998 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 15:08:39,998 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 15:08:39,999 INFO L432 ainManager$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-43_2a-drivers--infiniband--ulp--isert--ib_isert.ko-entry_point.cil.out.i [2021-12-22 15:08:40,063 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40bf72a31/4266110af265456aac4765e09abf98e0/FLAGfc8e01186 [2021-12-22 15:08:40,792 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 15:08:40,793 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--infiniband--ulp--isert--ib_isert.ko-entry_point.cil.out.i [2021-12-22 15:08:40,849 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40bf72a31/4266110af265456aac4765e09abf98e0/FLAGfc8e01186 [2021-12-22 15:08:41,336 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40bf72a31/4266110af265456aac4765e09abf98e0 [2021-12-22 15:08:41,339 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 15:08:41,345 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 15:08:41,347 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 15:08:41,348 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 15:08:41,353 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 15:08:41,354 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:08:41" (1/1) ... [2021-12-22 15:08:41,355 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29916fcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:08:41, skipping insertion in model container [2021-12-22 15:08:41,355 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:08:41" (1/1) ... [2021-12-22 15:08:41,360 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 15:08:41,481 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 15:08:44,096 WARN L230 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-43_2a-drivers--infiniband--ulp--isert--ib_isert.ko-entry_point.cil.out.i[472306,472319] [2021-12-22 15:08:44,139 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 15:08:44,163 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 15:08:44,696 WARN L230 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-43_2a-drivers--infiniband--ulp--isert--ib_isert.ko-entry_point.cil.out.i[472306,472319] [2021-12-22 15:08:44,703 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 15:08:44,772 INFO L208 MainTranslator]: Completed translation [2021-12-22 15:08:44,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:08:44 WrapperNode [2021-12-22 15:08:44,774 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 15:08:44,775 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 15:08:44,775 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 15:08:44,776 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 15:08:44,780 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:08:44" (1/1) ... [2021-12-22 15:08:44,861 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:08:44" (1/1) ... [2021-12-22 15:08:44,992 INFO L137 Inliner]: procedures = 390, calls = 2687, calls flagged for inlining = 203, calls inlined = 169, statements flattened = 6741 [2021-12-22 15:08:44,993 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 15:08:44,993 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 15:08:44,993 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 15:08:44,994 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 15:08:45,000 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:08:44" (1/1) ... [2021-12-22 15:08:45,000 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:08:44" (1/1) ... [2021-12-22 15:08:45,059 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:08:44" (1/1) ... [2021-12-22 15:08:45,060 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:08:44" (1/1) ... [2021-12-22 15:08:45,144 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:08:44" (1/1) ... [2021-12-22 15:08:45,158 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:08:44" (1/1) ... [2021-12-22 15:08:45,183 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:08:44" (1/1) ... [2021-12-22 15:08:45,209 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 15:08:45,210 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 15:08:45,211 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 15:08:45,211 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 15:08:45,212 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:08:44" (1/1) ... [2021-12-22 15:08:45,217 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 15:08:45,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 15:08:45,244 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) [2021-12-22 15:08:45,261 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 [2021-12-22 15:08:45,270 INFO L130 BoogieDeclarations]: Found specification of procedure ib_wc_status_msg [2021-12-22 15:08:45,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_wc_status_msg [2021-12-22 15:08:45,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-22 15:08:45,271 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-22 15:08:45,271 INFO L130 BoogieDeclarations]: Found specification of procedure isert_setup_id [2021-12-22 15:08:45,271 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_setup_id [2021-12-22 15:08:45,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-22 15:08:45,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-22 15:08:45,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-22 15:08:45,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-22 15:08:45,271 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2021-12-22 15:08:45,272 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2021-12-22 15:08:45,272 INFO L130 BoogieDeclarations]: Found specification of procedure dump_stack [2021-12-22 15:08:45,272 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_stack [2021-12-22 15:08:45,272 INFO L130 BoogieDeclarations]: Found specification of procedure iscsit_stop_dataout_timer [2021-12-22 15:08:45,272 INFO L138 BoogieDeclarations]: Found implementation of procedure iscsit_stop_dataout_timer [2021-12-22 15:08:45,272 INFO L130 BoogieDeclarations]: Found specification of procedure rdma_destroy_id [2021-12-22 15:08:45,272 INFO L138 BoogieDeclarations]: Found implementation of procedure rdma_destroy_id [2021-12-22 15:08:45,272 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2021-12-22 15:08:45,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2021-12-22 15:08:45,273 INFO L130 BoogieDeclarations]: Found specification of procedure isert_cq_work [2021-12-22 15:08:45,273 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_cq_work [2021-12-22 15:08:45,273 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-22 15:08:45,273 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-22 15:08:45,273 INFO L130 BoogieDeclarations]: Found specification of procedure ib_post_recv [2021-12-22 15:08:45,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_post_recv [2021-12-22 15:08:45,273 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_sync_single_for_device [2021-12-22 15:08:45,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_sync_single_for_device [2021-12-22 15:08:45,273 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_unmap_single [2021-12-22 15:08:45,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_unmap_single [2021-12-22 15:08:45,274 INFO L130 BoogieDeclarations]: Found specification of procedure isert_init_send_wr [2021-12-22 15:08:45,274 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_init_send_wr [2021-12-22 15:08:45,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-22 15:08:45,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-22 15:08:45,274 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-22 15:08:45,274 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-22 15:08:45,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 15:08:45,274 INFO L130 BoogieDeclarations]: Found specification of procedure ib_sg_dma_address [2021-12-22 15:08:45,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_sg_dma_address [2021-12-22 15:08:45,275 INFO L130 BoogieDeclarations]: Found specification of procedure isert_wait_conn [2021-12-22 15:08:45,275 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_wait_conn [2021-12-22 15:08:45,275 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u64~0~X~int~X~int~TO~VOID [2021-12-22 15:08:45,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u64~0~X~int~X~int~TO~VOID [2021-12-22 15:08:45,275 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-12-22 15:08:45,275 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-12-22 15:08:45,275 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2021-12-22 15:08:45,276 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2021-12-22 15:08:45,276 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_map_single [2021-12-22 15:08:45,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_map_single [2021-12-22 15:08:45,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-22 15:08:45,276 INFO L130 BoogieDeclarations]: Found specification of procedure isert_conn_terminate [2021-12-22 15:08:45,276 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_conn_terminate [2021-12-22 15:08:45,276 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-22 15:08:45,276 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-22 15:08:45,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-22 15:08:45,277 INFO L130 BoogieDeclarations]: Found specification of procedure isert_prot_cmd [2021-12-22 15:08:45,277 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_prot_cmd [2021-12-22 15:08:45,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-22 15:08:45,277 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-22 15:08:45,277 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-22 15:08:45,277 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_interruptible [2021-12-22 15:08:45,277 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_interruptible [2021-12-22 15:08:45,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-22 15:08:45,278 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-22 15:08:45,278 INFO L130 BoogieDeclarations]: Found specification of procedure isert_release_work [2021-12-22 15:08:45,278 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_release_work [2021-12-22 15:08:45,278 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-22 15:08:45,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-22 15:08:45,278 INFO L130 BoogieDeclarations]: Found specification of procedure isert_free_np [2021-12-22 15:08:45,278 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_free_np [2021-12-22 15:08:45,278 INFO L130 BoogieDeclarations]: Found specification of procedure isert_comp_put [2021-12-22 15:08:45,278 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_comp_put [2021-12-22 15:08:45,279 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-12-22 15:08:45,279 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-12-22 15:08:45,279 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-12-22 15:08:45,279 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-12-22 15:08:45,279 INFO L130 BoogieDeclarations]: Found specification of procedure sg_next [2021-12-22 15:08:45,279 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_next [2021-12-22 15:08:45,279 INFO L130 BoogieDeclarations]: Found specification of procedure sg_copy_from_buffer [2021-12-22 15:08:45,279 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_copy_from_buffer [2021-12-22 15:08:45,280 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-22 15:08:45,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-22 15:08:45,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-22 15:08:45,280 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2021-12-22 15:08:45,280 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2021-12-22 15:08:45,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 15:08:45,280 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2021-12-22 15:08:45,280 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2021-12-22 15:08:45,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-22 15:08:45,281 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-22 15:08:45,281 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-22 15:08:45,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-22 15:08:45,281 INFO L130 BoogieDeclarations]: Found specification of procedure isert_completion_put [2021-12-22 15:08:45,281 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_completion_put [2021-12-22 15:08:45,281 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-12-22 15:08:45,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-12-22 15:08:45,281 INFO L130 BoogieDeclarations]: Found specification of procedure isert_unmap_data_buf [2021-12-22 15:08:45,281 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_unmap_data_buf [2021-12-22 15:08:45,282 INFO L130 BoogieDeclarations]: Found specification of procedure isert_inv_rkey [2021-12-22 15:08:45,282 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_inv_rkey [2021-12-22 15:08:45,282 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-12-22 15:08:45,282 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-12-22 15:08:45,282 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_sync_single_for_cpu [2021-12-22 15:08:45,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_sync_single_for_cpu [2021-12-22 15:08:45,282 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-22 15:08:45,282 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-22 15:08:45,282 INFO L130 BoogieDeclarations]: Found specification of procedure isert_allocate_cmd [2021-12-22 15:08:45,283 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_allocate_cmd [2021-12-22 15:08:45,283 INFO L130 BoogieDeclarations]: Found specification of procedure isert_do_control_comp [2021-12-22 15:08:45,283 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_do_control_comp [2021-12-22 15:08:45,283 INFO L130 BoogieDeclarations]: Found specification of procedure isert_put_conn [2021-12-22 15:08:45,283 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_put_conn [2021-12-22 15:08:45,283 INFO L130 BoogieDeclarations]: Found specification of procedure isert_connect_release [2021-12-22 15:08:45,283 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_connect_release [2021-12-22 15:08:45,283 INFO L130 BoogieDeclarations]: Found specification of procedure isert_free_comps [2021-12-22 15:08:45,284 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_free_comps [2021-12-22 15:08:45,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 15:08:45,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 15:08:45,284 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2021-12-22 15:08:45,284 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2021-12-22 15:08:45,284 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-22 15:08:45,284 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-22 15:08:45,284 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-12-22 15:08:45,284 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-12-22 15:08:45,285 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-12-22 15:08:45,285 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-12-22 15:08:45,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-22 15:08:45,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-22 15:08:45,285 INFO L130 BoogieDeclarations]: Found specification of procedure isert_device_put [2021-12-22 15:08:45,285 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_device_put [2021-12-22 15:08:45,285 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-22 15:08:45,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-22 15:08:45,286 INFO L130 BoogieDeclarations]: Found specification of procedure isert_map_data_buf [2021-12-22 15:08:45,286 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_map_data_buf [2021-12-22 15:08:45,286 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-22 15:08:45,286 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-22 15:08:45,286 INFO L130 BoogieDeclarations]: Found specification of procedure isert_free_conn [2021-12-22 15:08:45,286 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_free_conn [2021-12-22 15:08:45,286 INFO L130 BoogieDeclarations]: Found specification of procedure ib_post_send [2021-12-22 15:08:45,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_post_send [2021-12-22 15:08:45,286 INFO L130 BoogieDeclarations]: Found specification of procedure isert_init_tx_hdrs [2021-12-22 15:08:45,287 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_init_tx_hdrs [2021-12-22 15:08:45,287 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2021-12-22 15:08:45,287 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2021-12-22 15:08:45,287 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-12-22 15:08:45,287 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-12-22 15:08:45,287 INFO L130 BoogieDeclarations]: Found specification of procedure ib_free_fast_reg_page_list [2021-12-22 15:08:45,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_free_fast_reg_page_list [2021-12-22 15:08:45,287 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2021-12-22 15:08:45,287 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2021-12-22 15:08:45,288 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-22 15:08:45,288 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-22 15:08:45,288 INFO L130 BoogieDeclarations]: Found specification of procedure isert_aborted_task [2021-12-22 15:08:45,288 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_aborted_task [2021-12-22 15:08:45,288 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-22 15:08:45,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-22 15:08:45,288 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2021-12-22 15:08:45,288 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2021-12-22 15:08:45,288 INFO L130 BoogieDeclarations]: Found specification of procedure isert_put_response [2021-12-22 15:08:45,288 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_put_response [2021-12-22 15:08:45,289 INFO L130 BoogieDeclarations]: Found specification of procedure isert_wait4flush [2021-12-22 15:08:45,289 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_wait4flush [2021-12-22 15:08:45,289 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-22 15:08:45,289 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-22 15:08:45,289 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-22 15:08:45,289 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-22 15:08:45,289 INFO L130 BoogieDeclarations]: Found specification of procedure isert_free_login_buf [2021-12-22 15:08:45,289 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_free_login_buf [2021-12-22 15:08:45,289 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-12-22 15:08:45,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-12-22 15:08:45,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-22 15:08:45,290 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-22 15:08:45,290 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-22 15:08:45,290 INFO L130 BoogieDeclarations]: Found specification of procedure iscsit_priv_cmd [2021-12-22 15:08:45,290 INFO L138 BoogieDeclarations]: Found implementation of procedure iscsit_priv_cmd [2021-12-22 15:08:45,290 INFO L130 BoogieDeclarations]: Found specification of procedure isert_put_nopin [2021-12-22 15:08:45,290 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_put_nopin [2021-12-22 15:08:45,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-22 15:08:45,291 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2021-12-22 15:08:45,291 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2021-12-22 15:08:45,291 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-12-22 15:08:45,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-12-22 15:08:45,291 INFO L130 BoogieDeclarations]: Found specification of procedure isert_reg_rdma [2021-12-22 15:08:45,291 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_reg_rdma [2021-12-22 15:08:45,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-22 15:08:45,291 INFO L130 BoogieDeclarations]: Found specification of procedure isert_post_recv [2021-12-22 15:08:45,291 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_post_recv [2021-12-22 15:08:45,291 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-12-22 15:08:45,292 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-12-22 15:08:45,292 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-22 15:08:45,292 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-22 15:08:45,292 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2021-12-22 15:08:45,292 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2021-12-22 15:08:45,292 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-12-22 15:08:45,292 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-12-22 15:08:45,292 INFO L130 BoogieDeclarations]: Found specification of procedure isert_rdma_post_recvl [2021-12-22 15:08:45,292 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_rdma_post_recvl [2021-12-22 15:08:45,293 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-22 15:08:45,293 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-22 15:08:45,293 INFO L130 BoogieDeclarations]: Found specification of procedure isert_conn_free_fastreg_pool [2021-12-22 15:08:45,293 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_conn_free_fastreg_pool [2021-12-22 15:08:45,293 INFO L130 BoogieDeclarations]: Found specification of procedure transport_send_check_condition_and_sense [2021-12-22 15:08:45,293 INFO L138 BoogieDeclarations]: Found implementation of procedure transport_send_check_condition_and_sense [2021-12-22 15:08:45,293 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-12-22 15:08:45,293 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-12-22 15:08:45,294 INFO L130 BoogieDeclarations]: Found specification of procedure isert_reg_sig_mr [2021-12-22 15:08:45,294 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_reg_sig_mr [2021-12-22 15:08:45,294 INFO L130 BoogieDeclarations]: Found specification of procedure transport_generic_free_cmd [2021-12-22 15:08:45,294 INFO L138 BoogieDeclarations]: Found implementation of procedure transport_generic_free_cmd [2021-12-22 15:08:45,294 INFO L130 BoogieDeclarations]: Found specification of procedure isert_unmap_tx_desc [2021-12-22 15:08:45,294 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_unmap_tx_desc [2021-12-22 15:08:45,294 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-12-22 15:08:45,294 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-12-22 15:08:45,294 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_weight [2021-12-22 15:08:45,295 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_weight [2021-12-22 15:08:45,295 INFO L130 BoogieDeclarations]: Found specification of procedure isert_handle_prot_cmd [2021-12-22 15:08:45,295 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_handle_prot_cmd [2021-12-22 15:08:45,295 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dereg_mr [2021-12-22 15:08:45,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dereg_mr [2021-12-22 15:08:45,295 INFO L130 BoogieDeclarations]: Found specification of procedure ib_req_notify_cq [2021-12-22 15:08:45,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_req_notify_cq [2021-12-22 15:08:45,295 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-22 15:08:45,295 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-22 15:08:45,295 INFO L130 BoogieDeclarations]: Found specification of procedure isert_check_pi_status [2021-12-22 15:08:45,296 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_check_pi_status [2021-12-22 15:08:45,296 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2021-12-22 15:08:45,296 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2021-12-22 15:08:45,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 15:08:45,296 INFO L130 BoogieDeclarations]: Found specification of procedure isert_create_send_desc [2021-12-22 15:08:45,296 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_create_send_desc [2021-12-22 15:08:45,296 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-22 15:08:45,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-22 15:08:45,296 INFO L130 BoogieDeclarations]: Found specification of procedure ib_sg_dma_len [2021-12-22 15:08:45,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_sg_dma_len [2021-12-22 15:08:45,297 INFO L130 BoogieDeclarations]: Found specification of procedure isert_fast_reg_mr [2021-12-22 15:08:45,297 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_fast_reg_mr [2021-12-22 15:08:45,297 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-22 15:08:45,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-22 15:08:45,297 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2021-12-22 15:08:45,297 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2021-12-22 15:08:45,297 INFO L130 BoogieDeclarations]: Found specification of procedure isert_post_response [2021-12-22 15:08:45,297 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_post_response [2021-12-22 15:08:45,297 INFO L130 BoogieDeclarations]: Found specification of procedure ib_alloc_fast_reg_mr [2021-12-22 15:08:45,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_alloc_fast_reg_mr [2021-12-22 15:08:45,298 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-12-22 15:08:45,298 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-12-22 15:08:45,298 INFO L130 BoogieDeclarations]: Found specification of procedure isert_rx_login_req [2021-12-22 15:08:45,298 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_rx_login_req [2021-12-22 15:08:45,298 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2021-12-22 15:08:45,298 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2021-12-22 15:08:45,298 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_mapping_error [2021-12-22 15:08:45,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_mapping_error [2021-12-22 15:08:45,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 15:08:45,299 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-12-22 15:08:45,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-12-22 15:08:45,299 INFO L130 BoogieDeclarations]: Found specification of procedure target_put_sess_cmd [2021-12-22 15:08:45,299 INFO L138 BoogieDeclarations]: Found implementation of procedure target_put_sess_cmd [2021-12-22 15:08:45,299 INFO L130 BoogieDeclarations]: Found specification of procedure isert_set_dif_domain [2021-12-22 15:08:45,299 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_set_dif_domain [2021-12-22 15:08:45,299 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2021-12-22 15:08:45,299 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2021-12-22 15:08:45,300 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dealloc_pd [2021-12-22 15:08:45,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dealloc_pd [2021-12-22 15:08:45,300 INFO L130 BoogieDeclarations]: Found specification of procedure ib_alloc_fast_reg_page_list [2021-12-22 15:08:45,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_alloc_fast_reg_page_list [2021-12-22 15:08:45,300 INFO L130 BoogieDeclarations]: Found specification of procedure iscsit_build_rsp_pdu [2021-12-22 15:08:45,300 INFO L138 BoogieDeclarations]: Found implementation of procedure iscsit_build_rsp_pdu [2021-12-22 15:08:46,220 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 15:08:46,223 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 15:08:46,339 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-22 15:08:51,599 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 15:08:51,620 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 15:08:51,620 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-22 15:08:51,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:08:51 BoogieIcfgContainer [2021-12-22 15:08:51,625 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 15:08:51,626 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 15:08:51,626 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 15:08:51,629 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 15:08:51,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 03:08:41" (1/3) ... [2021-12-22 15:08:51,629 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d207452 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:08:51, skipping insertion in model container [2021-12-22 15:08:51,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:08:44" (2/3) ... [2021-12-22 15:08:51,630 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d207452 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:08:51, skipping insertion in model container [2021-12-22 15:08:51,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:08:51" (3/3) ... [2021-12-22 15:08:51,631 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--infiniband--ulp--isert--ib_isert.ko-entry_point.cil.out.i [2021-12-22 15:08:51,636 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 15:08:51,636 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-22 15:08:51,713 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 15:08:51,718 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 [2021-12-22 15:08:51,718 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-22 15:08:51,804 INFO L276 IsEmpty]: Start isEmpty. Operand has 2249 states, 1558 states have (on average 1.3286264441591784) internal successors, (2070), 1611 states have internal predecessors, (2070), 565 states have call successors, (565), 125 states have call predecessors, (565), 124 states have return successors, (559), 548 states have call predecessors, (559), 559 states have call successors, (559) [2021-12-22 15:08:51,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-12-22 15:08:51,812 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:08:51,813 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:08:51,814 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:08:51,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:08:51,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1434667982, now seen corresponding path program 1 times [2021-12-22 15:08:51,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:08:51,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091334799] [2021-12-22 15:08:51,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:08:51,826 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:08:52,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:52,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:08:52,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:52,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:08:52,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:52,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:08:52,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:52,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-22 15:08:52,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:52,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:08:52,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:52,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-22 15:08:52,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:52,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:08:52,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:52,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-22 15:08:52,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:52,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:08:52,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:52,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-22 15:08:52,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:52,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:08:52,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:52,484 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-12-22 15:08:52,485 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:08:52,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091334799] [2021-12-22 15:08:52,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091334799] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:08:52,485 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:08:52,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 15:08:52,487 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129518937] [2021-12-22 15:08:52,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:08:52,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 15:08:52,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:08:52,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 15:08:52,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:08:52,512 INFO L87 Difference]: Start difference. First operand has 2249 states, 1558 states have (on average 1.3286264441591784) internal successors, (2070), 1611 states have internal predecessors, (2070), 565 states have call successors, (565), 125 states have call predecessors, (565), 124 states have return successors, (559), 548 states have call predecessors, (559), 559 states have call successors, (559) Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-22 15:08:54,832 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:08:59,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:08:59,065 INFO L93 Difference]: Finished difference Result 5245 states and 7862 transitions. [2021-12-22 15:08:59,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-22 15:08:59,076 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 79 [2021-12-22 15:08:59,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:08:59,132 INFO L225 Difference]: With dead ends: 5245 [2021-12-22 15:08:59,147 INFO L226 Difference]: Without dead ends: 2971 [2021-12-22 15:08:59,182 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-12-22 15:08:59,187 INFO L933 BasicCegarLoop]: 2898 mSDtfsCounter, 3498 mSDsluCounter, 1540 mSDsCounter, 0 mSdLazyCounter, 1502 mSolverCounterSat, 2946 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3563 SdHoareTripleChecker+Valid, 4438 SdHoareTripleChecker+Invalid, 4449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2946 IncrementalHoareTripleChecker+Valid, 1502 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2021-12-22 15:08:59,188 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3563 Valid, 4438 Invalid, 4449 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2946 Valid, 1502 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2021-12-22 15:08:59,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2971 states. [2021-12-22 15:08:59,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2971 to 2219. [2021-12-22 15:08:59,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2219 states, 1537 states have (on average 1.3201040988939492) internal successors, (2029), 1583 states have internal predecessors, (2029), 558 states have call successors, (558), 124 states have call predecessors, (558), 123 states have return successors, (556), 545 states have call predecessors, (556), 556 states have call successors, (556) [2021-12-22 15:08:59,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2219 states to 2219 states and 3143 transitions. [2021-12-22 15:08:59,601 INFO L78 Accepts]: Start accepts. Automaton has 2219 states and 3143 transitions. Word has length 79 [2021-12-22 15:08:59,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:08:59,602 INFO L470 AbstractCegarLoop]: Abstraction has 2219 states and 3143 transitions. [2021-12-22 15:08:59,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-22 15:08:59,602 INFO L276 IsEmpty]: Start isEmpty. Operand 2219 states and 3143 transitions. [2021-12-22 15:08:59,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-12-22 15:08:59,610 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:08:59,610 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:08:59,610 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 15:08:59,611 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:08:59,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:08:59,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1906359156, now seen corresponding path program 1 times [2021-12-22 15:08:59,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:08:59,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451498935] [2021-12-22 15:08:59,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:08:59,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:08:59,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:59,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:08:59,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:59,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:08:59,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:59,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:08:59,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:59,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-22 15:08:59,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:59,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:08:59,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:59,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-22 15:08:59,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:59,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:08:59,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:59,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-22 15:08:59,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:59,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:08:59,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:59,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-22 15:08:59,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:00,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:00,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:00,038 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-12-22 15:09:00,038 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:09:00,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451498935] [2021-12-22 15:09:00,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451498935] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:09:00,039 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:09:00,039 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 15:09:00,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884219376] [2021-12-22 15:09:00,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:09:00,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 15:09:00,043 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:09:00,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 15:09:00,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-22 15:09:00,044 INFO L87 Difference]: Start difference. First operand 2219 states and 3143 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2021-12-22 15:09:03,717 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:09:10,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:09:10,549 INFO L93 Difference]: Finished difference Result 7646 states and 11254 transitions. [2021-12-22 15:09:10,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-22 15:09:10,551 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 79 [2021-12-22 15:09:10,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:09:10,583 INFO L225 Difference]: With dead ends: 7646 [2021-12-22 15:09:10,583 INFO L226 Difference]: Without dead ends: 5448 [2021-12-22 15:09:10,598 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-22 15:09:10,599 INFO L933 BasicCegarLoop]: 3184 mSDtfsCounter, 9144 mSDsluCounter, 3970 mSDsCounter, 0 mSdLazyCounter, 3298 mSolverCounterSat, 5978 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9446 SdHoareTripleChecker+Valid, 7154 SdHoareTripleChecker+Invalid, 9277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5978 IncrementalHoareTripleChecker+Valid, 3298 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2021-12-22 15:09:10,599 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9446 Valid, 7154 Invalid, 9277 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5978 Valid, 3298 Invalid, 1 Unknown, 0 Unchecked, 10.0s Time] [2021-12-22 15:09:10,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5448 states. [2021-12-22 15:09:10,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5448 to 3967. [2021-12-22 15:09:10,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3967 states, 2757 states have (on average 1.3173739571998548) internal successors, (3632), 2845 states have internal predecessors, (3632), 970 states have call successors, (970), 240 states have call predecessors, (970), 239 states have return successors, (967), 945 states have call predecessors, (967), 967 states have call successors, (967) [2021-12-22 15:09:10,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3967 states to 3967 states and 5569 transitions. [2021-12-22 15:09:10,829 INFO L78 Accepts]: Start accepts. Automaton has 3967 states and 5569 transitions. Word has length 79 [2021-12-22 15:09:10,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:09:10,829 INFO L470 AbstractCegarLoop]: Abstraction has 3967 states and 5569 transitions. [2021-12-22 15:09:10,830 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2021-12-22 15:09:10,830 INFO L276 IsEmpty]: Start isEmpty. Operand 3967 states and 5569 transitions. [2021-12-22 15:09:10,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2021-12-22 15:09:10,842 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:09:10,842 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-12-22 15:09:10,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-22 15:09:10,843 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:09:10,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:09:10,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1136123505, now seen corresponding path program 1 times [2021-12-22 15:09:10,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:09:10,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550358690] [2021-12-22 15:09:10,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:09:10,844 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:09:10,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:11,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:09:11,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:11,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:11,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:11,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:09:11,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:11,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-22 15:09:11,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:11,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:11,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:11,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-22 15:09:11,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:11,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:11,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:11,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-22 15:09:11,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:11,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:11,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:11,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-22 15:09:11,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:11,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:11,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:11,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-22 15:09:11,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:11,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:11,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:11,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:09:11,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:11,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-22 15:09:11,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:11,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:11,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:11,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:09:11,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:11,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-22 15:09:11,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:11,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:11,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:11,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:09:11,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:11,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-22 15:09:11,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:11,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:11,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:11,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:09:11,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:11,368 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2021-12-22 15:09:11,368 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:09:11,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550358690] [2021-12-22 15:09:11,370 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550358690] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:09:11,370 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:09:11,370 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-22 15:09:11,372 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080881293] [2021-12-22 15:09:11,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:09:11,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-22 15:09:11,373 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:09:11,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 15:09:11,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-22 15:09:11,374 INFO L87 Difference]: Start difference. First operand 3967 states and 5569 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-22 15:09:18,318 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:09:20,333 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:09:22,356 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:09:27,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:09:27,302 INFO L93 Difference]: Finished difference Result 9390 states and 13677 transitions. [2021-12-22 15:09:27,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-22 15:09:27,303 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 156 [2021-12-22 15:09:27,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:09:27,335 INFO L225 Difference]: With dead ends: 9390 [2021-12-22 15:09:27,336 INFO L226 Difference]: Without dead ends: 5445 [2021-12-22 15:09:27,355 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-12-22 15:09:27,356 INFO L933 BasicCegarLoop]: 2852 mSDtfsCounter, 2187 mSDsluCounter, 8682 mSDsCounter, 0 mSdLazyCounter, 4930 mSolverCounterSat, 1866 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2252 SdHoareTripleChecker+Valid, 11534 SdHoareTripleChecker+Invalid, 6799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1866 IncrementalHoareTripleChecker+Valid, 4930 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.5s IncrementalHoareTripleChecker+Time [2021-12-22 15:09:27,356 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2252 Valid, 11534 Invalid, 6799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1866 Valid, 4930 Invalid, 3 Unknown, 0 Unchecked, 15.5s Time] [2021-12-22 15:09:27,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5445 states. [2021-12-22 15:09:27,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5445 to 3967. [2021-12-22 15:09:27,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3967 states, 2757 states have (on average 1.3166485310119695) internal successors, (3630), 2845 states have internal predecessors, (3630), 970 states have call successors, (970), 240 states have call predecessors, (970), 239 states have return successors, (967), 945 states have call predecessors, (967), 967 states have call successors, (967) [2021-12-22 15:09:27,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3967 states to 3967 states and 5567 transitions. [2021-12-22 15:09:27,527 INFO L78 Accepts]: Start accepts. Automaton has 3967 states and 5567 transitions. Word has length 156 [2021-12-22 15:09:27,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:09:27,528 INFO L470 AbstractCegarLoop]: Abstraction has 3967 states and 5567 transitions. [2021-12-22 15:09:27,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-22 15:09:27,529 INFO L276 IsEmpty]: Start isEmpty. Operand 3967 states and 5567 transitions. [2021-12-22 15:09:27,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2021-12-22 15:09:27,536 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:09:27,536 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:09:27,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-22 15:09:27,537 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:09:27,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:09:27,537 INFO L85 PathProgramCache]: Analyzing trace with hash 749283438, now seen corresponding path program 1 times [2021-12-22 15:09:27,537 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:09:27,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41674765] [2021-12-22 15:09:27,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:09:27,538 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:09:27,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:27,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:09:27,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:27,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:27,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:28,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:09:28,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:28,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-22 15:09:28,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:28,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:28,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:28,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-22 15:09:28,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:28,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:28,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:28,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-22 15:09:28,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:28,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:28,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:28,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-22 15:09:28,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:28,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:09:28,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:28,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-22 15:09:28,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:28,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-22 15:09:28,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:28,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-22 15:09:28,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:28,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:09:28,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:28,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-22 15:09:28,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:28,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-22 15:09:28,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:28,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-22 15:09:28,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:28,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-22 15:09:28,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:09:28,444 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-12-22 15:09:28,444 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:09:28,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41674765] [2021-12-22 15:09:28,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41674765] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:09:28,445 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:09:28,445 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-22 15:09:28,445 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809313929] [2021-12-22 15:09:28,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:09:28,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-22 15:09:28,446 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:09:28,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 15:09:28,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-12-22 15:09:28,447 INFO L87 Difference]: Start difference. First operand 3967 states and 5567 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-22 15:09:35,354 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:09:37,388 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:09:41,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:09:41,658 INFO L93 Difference]: Finished difference Result 6304 states and 9635 transitions. [2021-12-22 15:09:41,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-22 15:09:41,680 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 154 [2021-12-22 15:09:41,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:09:41,684 INFO L225 Difference]: With dead ends: 6304 [2021-12-22 15:09:41,684 INFO L226 Difference]: Without dead ends: 0 [2021-12-22 15:09:41,720 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-12-22 15:09:41,722 INFO L933 BasicCegarLoop]: 2801 mSDtfsCounter, 6851 mSDsluCounter, 3742 mSDsCounter, 0 mSdLazyCounter, 3387 mSolverCounterSat, 4469 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7150 SdHoareTripleChecker+Valid, 6543 SdHoareTripleChecker+Invalid, 7858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4469 IncrementalHoareTripleChecker+Valid, 3387 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2021-12-22 15:09:41,723 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7150 Valid, 6543 Invalid, 7858 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4469 Valid, 3387 Invalid, 2 Unknown, 0 Unchecked, 12.7s Time] [2021-12-22 15:09:41,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-22 15:09:41,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-22 15:09:41,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-12-22 15:09:41,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-22 15:09:41,725 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 154 [2021-12-22 15:09:41,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:09:41,726 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-22 15:09:41,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-22 15:09:41,726 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-22 15:09:41,726 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-22 15:09:41,728 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-22 15:09:41,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-22 15:09:41,730 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.