./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--infiniband--core--ib_uverbs.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5f08f0f0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--infiniband--core--ib_uverbs.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 9be531e7af87cba73be4f8246e93f3d32963d00e421fc44d0f45559eac1d9e7a --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 17:39:12,469 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 17:39:12,472 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 17:39:12,509 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 17:39:12,510 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 17:39:12,513 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 17:39:12,514 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 17:39:12,518 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 17:39:12,521 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 17:39:12,524 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 17:39:12,525 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 17:39:12,526 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 17:39:12,527 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 17:39:12,529 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 17:39:12,530 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 17:39:12,537 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 17:39:12,538 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 17:39:12,539 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 17:39:12,541 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 17:39:12,545 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 17:39:12,547 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 17:39:12,547 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 17:39:12,548 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 17:39:12,550 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 17:39:12,554 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 17:39:12,554 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 17:39:12,555 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 17:39:12,556 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 17:39:12,556 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 17:39:12,557 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 17:39:12,557 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 17:39:12,558 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 17:39:12,559 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 17:39:12,560 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 17:39:12,561 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 17:39:12,561 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 17:39:12,562 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 17:39:12,562 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 17:39:12,562 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 17:39:12,564 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 17:39:12,564 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 17:39:12,565 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 17:39:12,602 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 17:39:12,602 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 17:39:12,603 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 17:39:12,604 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 17:39:12,605 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 17:39:12,605 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 17:39:12,605 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 17:39:12,606 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 17:39:12,606 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 17:39:12,606 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 17:39:12,607 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 17:39:12,607 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 17:39:12,607 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 17:39:12,607 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 17:39:12,608 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 17:39:12,608 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 17:39:12,608 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 17:39:12,608 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 17:39:12,608 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 17:39:12,608 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 17:39:12,609 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 17:39:12,609 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 17:39:12,609 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 17:39:12,609 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 17:39:12,618 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 17:39:12,618 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 17:39:12,618 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 17:39:12,618 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 17:39:12,619 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 17:39:12,619 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9be531e7af87cba73be4f8246e93f3d32963d00e421fc44d0f45559eac1d9e7a [2021-11-05 17:39:12,921 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 17:39:12,937 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 17:39:12,939 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 17:39:12,940 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 17:39:12,941 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 17:39:12,942 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--infiniband--core--ib_uverbs.ko-entry_point.cil.out.i [2021-11-05 17:39:12,999 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a8b4804c/21684c0ec35c454cae25a43ab0a76279/FLAG361be072d [2021-11-05 17:39:13,860 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 17:39:13,861 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--infiniband--core--ib_uverbs.ko-entry_point.cil.out.i [2021-11-05 17:39:13,910 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a8b4804c/21684c0ec35c454cae25a43ab0a76279/FLAG361be072d [2021-11-05 17:39:13,999 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a8b4804c/21684c0ec35c454cae25a43ab0a76279 [2021-11-05 17:39:14,001 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 17:39:14,003 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 17:39:14,004 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 17:39:14,004 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 17:39:14,020 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 17:39:14,021 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 05:39:14" (1/1) ... [2021-11-05 17:39:14,021 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b1f1598 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:39:14, skipping insertion in model container [2021-11-05 17:39:14,022 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 05:39:14" (1/1) ... [2021-11-05 17:39:14,028 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 17:39:14,172 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 17:39:16,398 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--infiniband--core--ib_uverbs.ko-entry_point.cil.out.i[354644,354657] [2021-11-05 17:39:16,454 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 17:39:16,520 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 17:39:17,059 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--infiniband--core--ib_uverbs.ko-entry_point.cil.out.i[354644,354657] [2021-11-05 17:39:17,067 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 17:39:17,203 INFO L208 MainTranslator]: Completed translation [2021-11-05 17:39:17,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:39:17 WrapperNode [2021-11-05 17:39:17,204 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 17:39:17,206 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 17:39:17,206 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 17:39:17,207 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 17:39:17,212 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:39:17" (1/1) ... [2021-11-05 17:39:17,369 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:39:17" (1/1) ... [2021-11-05 17:39:18,312 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 17:39:18,313 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 17:39:18,314 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 17:39:18,314 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 17:39:18,321 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:39:17" (1/1) ... [2021-11-05 17:39:18,321 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:39:17" (1/1) ... [2021-11-05 17:39:18,581 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:39:17" (1/1) ... [2021-11-05 17:39:18,595 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:39:17" (1/1) ... [2021-11-05 17:39:19,197 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:39:17" (1/1) ... [2021-11-05 17:39:19,333 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:39:17" (1/1) ... [2021-11-05 17:39:19,597 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:39:17" (1/1) ... [2021-11-05 17:39:19,799 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 17:39:19,801 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 17:39:19,801 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 17:39:19,801 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 17:39:19,802 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:39:17" (1/1) ... [2021-11-05 17:39:19,807 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 17:39:19,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 17:39:19,826 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-05 17:39:19,847 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-05 17:39:19,862 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-11-05 17:39:19,862 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-11-05 17:39:19,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-05 17:39:19,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-05 17:39:19,863 INFO L130 BoogieDeclarations]: Found specification of procedure ib_uverbs_release_file [2021-11-05 17:39:19,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_uverbs_release_file [2021-11-05 17:39:19,863 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2021-11-05 17:39:19,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2021-11-05 17:39:19,864 INFO L130 BoogieDeclarations]: Found specification of procedure ib_uverbs_modify_srq [2021-11-05 17:39:19,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_uverbs_modify_srq [2021-11-05 17:39:19,864 INFO L130 BoogieDeclarations]: Found specification of procedure ib_uverbs_ex_query_device [2021-11-05 17:39:19,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_uverbs_ex_query_device [2021-11-05 17:39:19,864 INFO L130 BoogieDeclarations]: Found specification of procedure ib_uverbs_mmap [2021-11-05 17:39:19,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_uverbs_mmap [2021-11-05 17:39:19,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 17:39:19,865 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-05 17:39:19,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 17:39:19,865 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-11-05 17:39:19,865 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2021-11-05 17:39:19,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2021-11-05 17:39:19,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 17:39:19,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 17:39:19,866 INFO L130 BoogieDeclarations]: Found specification of procedure ib_uverbs_write [2021-11-05 17:39:19,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_uverbs_write [2021-11-05 17:39:19,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-05 17:39:19,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-05 17:39:19,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 17:39:19,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 17:39:19,867 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-11-05 17:39:19,867 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-11-05 17:39:19,867 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 17:39:19,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 17:39:19,867 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-05 17:39:19,867 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-05 17:39:19,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-05 17:39:19,868 INFO L130 BoogieDeclarations]: Found specification of procedure ib_uverbs_remove_one [2021-11-05 17:39:19,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_uverbs_remove_one [2021-11-05 17:39:19,868 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~TO~int [2021-11-05 17:39:19,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~TO~int [2021-11-05 17:39:19,868 INFO L130 BoogieDeclarations]: Found specification of procedure ib_uverbs_add_one [2021-11-05 17:39:19,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_uverbs_add_one [2021-11-05 17:39:19,869 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-05 17:39:19,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-05 17:39:19,869 INFO L130 BoogieDeclarations]: Found specification of procedure ib_uverbs_modify_qp [2021-11-05 17:39:19,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_uverbs_modify_qp [2021-11-05 17:39:19,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 17:39:19,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 17:39:19,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 17:40:00,415 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 17:40:00,416 INFO L299 CfgBuilder]: Removed 9079 assume(true) statements. [2021-11-05 17:40:00,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 05:40:00 BoogieIcfgContainer [2021-11-05 17:40:00,427 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 17:40:00,429 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 17:40:00,429 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 17:40:00,431 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 17:40:00,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 05:39:14" (1/3) ... [2021-11-05 17:40:00,432 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ad5658e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 05:40:00, skipping insertion in model container [2021-11-05 17:40:00,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:39:17" (2/3) ... [2021-11-05 17:40:00,432 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ad5658e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 05:40:00, skipping insertion in model container [2021-11-05 17:40:00,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 05:40:00" (3/3) ... [2021-11-05 17:40:00,434 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--infiniband--core--ib_uverbs.ko-entry_point.cil.out.i [2021-11-05 17:40:00,438 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 17:40:00,439 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-11-05 17:40:00,509 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 17:40:00,515 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-05 17:40:00,515 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-05 17:40:00,622 INFO L276 IsEmpty]: Start isEmpty. Operand has 7835 states, 7646 states have (on average 1.3808527334554015) internal successors, (10558), 7654 states have internal predecessors, (10558), 168 states have call successors, (168), 15 states have call predecessors, (168), 15 states have return successors, (168), 166 states have call predecessors, (168), 168 states have call successors, (168) [2021-11-05 17:40:00,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-05 17:40:00,644 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:40:00,645 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:40:00,645 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ib_uverbs_release_fileErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-05 17:40:00,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:40:00,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1001547020, now seen corresponding path program 1 times [2021-11-05 17:40:00,657 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:40:00,657 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251208577] [2021-11-05 17:40:00,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:40:00,658 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:40:01,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:40:01,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 17:40:01,324 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:40:01,324 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251208577] [2021-11-05 17:40:01,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251208577] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:40:01,326 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:40:01,327 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 17:40:01,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775530805] [2021-11-05 17:40:01,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:40:01,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-05 17:40:01,333 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:40:01,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-05 17:40:01,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 17:40:01,379 INFO L87 Difference]: Start difference. First operand has 7835 states, 7646 states have (on average 1.3808527334554015) internal successors, (10558), 7654 states have internal predecessors, (10558), 168 states have call successors, (168), 15 states have call predecessors, (168), 15 states have return successors, (168), 166 states have call predecessors, (168), 168 states have call successors, (168) Second operand has 2 states, 2 states have (on average 61.5) internal successors, (123), 2 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:40:01,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:40:01,732 INFO L93 Difference]: Finished difference Result 15666 states and 21951 transitions. [2021-11-05 17:40:01,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-05 17:40:01,734 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 61.5) internal successors, (123), 2 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 123 [2021-11-05 17:40:01,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:40:01,793 INFO L225 Difference]: With dead ends: 15666 [2021-11-05 17:40:01,793 INFO L226 Difference]: Without dead ends: 7822 [2021-11-05 17:40:01,840 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.04ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 17:40:01,844 INFO L933 BasicCegarLoop]: 10707 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10707 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 30.55ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-05 17:40:01,845 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 10707 Invalid, 0 Unknown, 0 Unchecked, 30.55ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-05 17:40:01,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7822 states. [2021-11-05 17:40:02,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7822 to 7822. [2021-11-05 17:40:02,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7822 states, 7634 states have (on average 1.355645795127063) internal successors, (10349), 7641 states have internal predecessors, (10349), 168 states have call successors, (168), 15 states have call predecessors, (168), 15 states have return successors, (168), 166 states have call predecessors, (168), 168 states have call successors, (168) [2021-11-05 17:40:02,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7822 states to 7822 states and 10685 transitions. [2021-11-05 17:40:02,163 INFO L78 Accepts]: Start accepts. Automaton has 7822 states and 10685 transitions. Word has length 123 [2021-11-05 17:40:02,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:40:02,164 INFO L470 AbstractCegarLoop]: Abstraction has 7822 states and 10685 transitions. [2021-11-05 17:40:02,164 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 61.5) internal successors, (123), 2 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:40:02,164 INFO L276 IsEmpty]: Start isEmpty. Operand 7822 states and 10685 transitions. [2021-11-05 17:40:02,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-05 17:40:02,171 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:40:02,172 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:40:02,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 17:40:02,172 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ib_uverbs_release_fileErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-05 17:40:02,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:40:02,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1568801746, now seen corresponding path program 1 times [2021-11-05 17:40:02,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:40:02,174 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176899579] [2021-11-05 17:40:02,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:40:02,175 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:40:02,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:40:02,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 17:40:02,871 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:40:02,871 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176899579] [2021-11-05 17:40:02,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176899579] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:40:02,872 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:40:02,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 17:40:02,873 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340105870] [2021-11-05 17:40:02,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:40:02,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 17:40:02,879 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:40:02,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 17:40:02,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:40:02,881 INFO L87 Difference]: Start difference. First operand 7822 states and 10685 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 2 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:40:03,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:40:03,358 INFO L93 Difference]: Finished difference Result 23252 states and 31992 transitions. [2021-11-05 17:40:03,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 17:40:03,359 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 2 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 123 [2021-11-05 17:40:03,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:40:03,435 INFO L225 Difference]: With dead ends: 23252 [2021-11-05 17:40:03,435 INFO L226 Difference]: Without dead ends: 15520 [2021-11-05 17:40:03,472 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.11ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:40:03,473 INFO L933 BasicCegarLoop]: 10847 mSDtfsCounter, 10551 mSDsluCounter, 10558 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 49.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10551 SdHoareTripleChecker+Valid, 21405 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 44.00ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 55.82ms IncrementalHoareTripleChecker+Time [2021-11-05 17:40:03,474 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10551 Valid, 21405 Invalid, 27 Unknown, 0 Unchecked, 44.00ms Time], IncrementalHoareTripleChecker [4 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 55.82ms Time] [2021-11-05 17:40:03,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15520 states. [2021-11-05 17:40:03,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15520 to 15512. [2021-11-05 17:40:03,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15512 states, 15141 states have (on average 1.3574400634040025) internal successors, (20553), 15151 states have internal predecessors, (20553), 336 states have call successors, (336), 30 states have call predecessors, (336), 30 states have return successors, (340), 332 states have call predecessors, (340), 336 states have call successors, (340) [2021-11-05 17:40:03,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15512 states to 15512 states and 21229 transitions. [2021-11-05 17:40:03,929 INFO L78 Accepts]: Start accepts. Automaton has 15512 states and 21229 transitions. Word has length 123 [2021-11-05 17:40:03,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:40:03,930 INFO L470 AbstractCegarLoop]: Abstraction has 15512 states and 21229 transitions. [2021-11-05 17:40:03,931 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 2 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:40:03,931 INFO L276 IsEmpty]: Start isEmpty. Operand 15512 states and 21229 transitions. [2021-11-05 17:40:03,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-11-05 17:40:03,934 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:40:03,934 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:40:03,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 17:40:03,935 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ib_uverbs_release_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ib_uverbs_release_fileErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-05 17:40:03,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:40:03,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1988831704, now seen corresponding path program 1 times [2021-11-05 17:40:03,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:40:03,936 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926179597] [2021-11-05 17:40:03,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:40:03,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:40:04,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:40:04,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 17:40:04,237 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:40:04,237 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926179597] [2021-11-05 17:40:04,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926179597] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:40:04,237 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:40:04,238 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 17:40:04,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537695893] [2021-11-05 17:40:04,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:40:04,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 17:40:04,239 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:40:04,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 17:40:04,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:40:04,242 INFO L87 Difference]: Start difference. First operand 15512 states and 21229 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:40:05,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:40:05,120 INFO L93 Difference]: Finished difference Result 46025 states and 63734 transitions. [2021-11-05 17:40:05,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 17:40:05,121 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2021-11-05 17:40:05,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:40:05,273 INFO L225 Difference]: With dead ends: 46025 [2021-11-05 17:40:05,274 INFO L226 Difference]: Without dead ends: 30617 [2021-11-05 17:40:05,341 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.81ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:40:05,346 INFO L933 BasicCegarLoop]: 11108 mSDtfsCounter, 10652 mSDsluCounter, 10705 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 106.75ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10652 SdHoareTripleChecker+Valid, 21813 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 48.95ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 121.63ms IncrementalHoareTripleChecker+Time [2021-11-05 17:40:05,349 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10652 Valid, 21813 Invalid, 27 Unknown, 0 Unchecked, 48.95ms Time], IncrementalHoareTripleChecker [5 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 121.63ms Time] [2021-11-05 17:40:05,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30617 states. [2021-11-05 17:40:06,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30617 to 30570. [2021-11-05 17:40:06,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30570 states, 29841 states have (on average 1.3594048456821153) internal successors, (40566), 29855 states have internal predecessors, (40566), 664 states have call successors, (664), 60 states have call predecessors, (664), 60 states have return successors, (1344), 658 states have call predecessors, (1344), 664 states have call successors, (1344) [2021-11-05 17:40:06,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30570 states to 30570 states and 42574 transitions. [2021-11-05 17:40:06,567 INFO L78 Accepts]: Start accepts. Automaton has 30570 states and 42574 transitions. Word has length 134 [2021-11-05 17:40:06,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:40:06,567 INFO L470 AbstractCegarLoop]: Abstraction has 30570 states and 42574 transitions. [2021-11-05 17:40:06,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:40:06,568 INFO L276 IsEmpty]: Start isEmpty. Operand 30570 states and 42574 transitions. [2021-11-05 17:40:06,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-11-05 17:40:06,573 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:40:06,573 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:40:06,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 17:40:06,574 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ib_uverbs_release_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ib_uverbs_release_fileErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-05 17:40:06,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:40:06,575 INFO L85 PathProgramCache]: Analyzing trace with hash -2091362701, now seen corresponding path program 1 times [2021-11-05 17:40:06,575 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:40:06,575 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310146290] [2021-11-05 17:40:06,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:40:06,576 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:40:06,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:40:06,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 17:40:06,863 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:40:06,864 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310146290] [2021-11-05 17:40:06,864 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310146290] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:40:06,864 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:40:06,864 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 17:40:06,864 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290149363] [2021-11-05 17:40:06,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:40:06,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 17:40:06,865 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:40:06,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 17:40:06,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:40:06,866 INFO L87 Difference]: Start difference. First operand 30570 states and 42574 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:40:07,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:40:07,875 INFO L93 Difference]: Finished difference Result 60672 states and 84509 transitions. [2021-11-05 17:40:07,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 17:40:07,876 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 136 [2021-11-05 17:40:07,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:40:08,002 INFO L225 Difference]: With dead ends: 60672 [2021-11-05 17:40:08,003 INFO L226 Difference]: Without dead ends: 30206 [2021-11-05 17:40:08,109 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.98ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:40:08,111 INFO L933 BasicCegarLoop]: 10554 mSDtfsCounter, 10549 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 53.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10549 SdHoareTripleChecker+Valid, 10554 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.99ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 59.97ms IncrementalHoareTripleChecker+Time [2021-11-05 17:40:08,112 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10549 Valid, 10554 Invalid, 2 Unknown, 0 Unchecked, 20.99ms Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 59.97ms Time] [2021-11-05 17:40:08,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30206 states. [2021-11-05 17:40:09,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30206 to 30206. [2021-11-05 17:40:09,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30206 states, 29485 states have (on average 1.3587247753094793) internal successors, (40062), 29499 states have internal predecessors, (40062), 656 states have call successors, (656), 60 states have call predecessors, (656), 60 states have return successors, (1328), 650 states have call predecessors, (1328), 656 states have call successors, (1328) [2021-11-05 17:40:09,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30206 states to 30206 states and 42046 transitions. [2021-11-05 17:40:09,341 INFO L78 Accepts]: Start accepts. Automaton has 30206 states and 42046 transitions. Word has length 136 [2021-11-05 17:40:09,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:40:09,343 INFO L470 AbstractCegarLoop]: Abstraction has 30206 states and 42046 transitions. [2021-11-05 17:40:09,343 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:40:09,343 INFO L276 IsEmpty]: Start isEmpty. Operand 30206 states and 42046 transitions. [2021-11-05 17:40:09,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-11-05 17:40:09,346 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:40:09,346 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:40:09,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-05 17:40:09,347 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ib_uverbs_release_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ib_uverbs_release_fileErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-05 17:40:09,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:40:09,347 INFO L85 PathProgramCache]: Analyzing trace with hash -995424755, now seen corresponding path program 1 times [2021-11-05 17:40:09,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:40:09,350 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508398625] [2021-11-05 17:40:09,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:40:09,350 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:40:09,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:40:09,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 17:40:09,627 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:40:09,627 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508398625] [2021-11-05 17:40:09,628 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508398625] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:40:09,628 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:40:09,628 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 17:40:09,628 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099099802] [2021-11-05 17:40:09,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:40:09,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 17:40:09,629 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:40:09,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 17:40:09,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:40:09,630 INFO L87 Difference]: Start difference. First operand 30206 states and 42046 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:40:10,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:40:10,566 INFO L93 Difference]: Finished difference Result 58646 states and 81753 transitions. [2021-11-05 17:40:10,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 17:40:10,567 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 142 [2021-11-05 17:40:10,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:40:10,668 INFO L225 Difference]: With dead ends: 58646 [2021-11-05 17:40:10,669 INFO L226 Difference]: Without dead ends: 28544 [2021-11-05 17:40:10,748 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.86ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:40:10,749 INFO L933 BasicCegarLoop]: 10013 mSDtfsCounter, 10003 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 52.57ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10003 SdHoareTripleChecker+Valid, 10013 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.67ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 59.89ms IncrementalHoareTripleChecker+Time [2021-11-05 17:40:10,749 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10003 Valid, 10013 Invalid, 2 Unknown, 0 Unchecked, 17.67ms Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 59.89ms Time] [2021-11-05 17:40:10,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28544 states. [2021-11-05 17:40:11,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28544 to 28544. [2021-11-05 17:40:11,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28544 states, 27897 states have (on average 1.3636591748216653) internal successors, (38042), 27909 states have internal predecessors, (38042), 592 states have call successors, (592), 52 states have call predecessors, (592), 52 states have return successors, (1184), 586 states have call predecessors, (1184), 592 states have call successors, (1184) [2021-11-05 17:40:11,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28544 states to 28544 states and 39818 transitions. [2021-11-05 17:40:11,871 INFO L78 Accepts]: Start accepts. Automaton has 28544 states and 39818 transitions. Word has length 142 [2021-11-05 17:40:11,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:40:11,872 INFO L470 AbstractCegarLoop]: Abstraction has 28544 states and 39818 transitions. [2021-11-05 17:40:11,872 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:40:11,872 INFO L276 IsEmpty]: Start isEmpty. Operand 28544 states and 39818 transitions. [2021-11-05 17:40:11,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-11-05 17:40:11,874 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:40:11,874 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:40:11,874 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-05 17:40:11,875 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ib_uverbs_release_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ib_uverbs_release_fileErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-05 17:40:11,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:40:11,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1609332516, now seen corresponding path program 1 times [2021-11-05 17:40:11,876 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:40:11,878 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940363820] [2021-11-05 17:40:11,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:40:11,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:40:12,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:40:12,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 17:40:12,125 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:40:12,125 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940363820] [2021-11-05 17:40:12,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940363820] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:40:12,126 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:40:12,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 17:40:12,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571867805] [2021-11-05 17:40:12,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:40:12,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 17:40:12,127 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:40:12,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 17:40:12,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:40:12,128 INFO L87 Difference]: Start difference. First operand 28544 states and 39818 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:40:13,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:40:13,744 INFO L93 Difference]: Finished difference Result 85368 states and 119136 transitions. [2021-11-05 17:40:13,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 17:40:13,745 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 148 [2021-11-05 17:40:13,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:40:13,981 INFO L225 Difference]: With dead ends: 85368 [2021-11-05 17:40:13,981 INFO L226 Difference]: Without dead ends: 56928 [2021-11-05 17:40:14,072 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.66ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:40:14,074 INFO L933 BasicCegarLoop]: 19791 mSDtfsCounter, 9983 mSDsluCounter, 9890 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 63.54ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9983 SdHoareTripleChecker+Valid, 29681 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 38.86ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 71.02ms IncrementalHoareTripleChecker+Time [2021-11-05 17:40:14,074 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9983 Valid, 29681 Invalid, 11 Unknown, 0 Unchecked, 38.86ms Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 71.02ms Time] [2021-11-05 17:40:14,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56928 states. [2021-11-05 17:40:15,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56928 to 56906. [2021-11-05 17:40:15,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56906 states, 55623 states have (on average 1.364201858943243) internal successors, (75881), 55645 states have internal predecessors, (75881), 1176 states have call successors, (1176), 104 states have call predecessors, (1176), 104 states have return successors, (2352), 1164 states have call predecessors, (2352), 1176 states have call successors, (2352) [2021-11-05 17:40:16,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56906 states to 56906 states and 79409 transitions. [2021-11-05 17:40:16,432 INFO L78 Accepts]: Start accepts. Automaton has 56906 states and 79409 transitions. Word has length 148 [2021-11-05 17:40:16,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:40:16,433 INFO L470 AbstractCegarLoop]: Abstraction has 56906 states and 79409 transitions. [2021-11-05 17:40:16,433 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:40:16,433 INFO L276 IsEmpty]: Start isEmpty. Operand 56906 states and 79409 transitions. [2021-11-05 17:40:16,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2021-11-05 17:40:16,435 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:40:16,436 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:40:16,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-05 17:40:16,437 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ib_uverbs_release_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ib_uverbs_release_fileErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-05 17:40:16,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:40:16,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1173068197, now seen corresponding path program 1 times [2021-11-05 17:40:16,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:40:16,438 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903041678] [2021-11-05 17:40:16,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:40:16,438 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:40:16,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:40:16,745 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 17:40:16,745 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:40:16,745 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903041678] [2021-11-05 17:40:16,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903041678] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:40:16,746 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:40:16,746 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 17:40:16,746 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183468052] [2021-11-05 17:40:16,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:40:16,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 17:40:16,747 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:40:16,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 17:40:16,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:40:16,748 INFO L87 Difference]: Start difference. First operand 56906 states and 79409 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 1 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:40:18,806 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:40:20,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:40:20,988 INFO L93 Difference]: Finished difference Result 142116 states and 198358 transitions. [2021-11-05 17:40:20,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 17:40:20,991 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 1 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 170 [2021-11-05 17:40:20,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:40:21,327 INFO L225 Difference]: With dead ends: 142116 [2021-11-05 17:40:21,328 INFO L226 Difference]: Without dead ends: 85314 [2021-11-05 17:40:21,528 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.77ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:40:21,529 INFO L933 BasicCegarLoop]: 19768 mSDtfsCounter, 9877 mSDsluCounter, 9997 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2069.06ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9877 SdHoareTripleChecker+Valid, 29765 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 38.34ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2216.96ms IncrementalHoareTripleChecker+Time [2021-11-05 17:40:21,529 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9877 Valid, 29765 Invalid, 15 Unknown, 0 Unchecked, 38.34ms Time], IncrementalHoareTripleChecker [4 Valid, 10 Invalid, 1 Unknown, 0 Unchecked, 2216.96ms Time] [2021-11-05 17:40:21,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85314 states. [2021-11-05 17:40:23,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85314 to 85292. [2021-11-05 17:40:23,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85292 states, 83373 states have (on average 1.3643745577105297) internal successors, (113752), 83405 states have internal predecessors, (113752), 1760 states have call successors, (1760), 156 states have call predecessors, (1760), 156 states have return successors, (3520), 1742 states have call predecessors, (3520), 1760 states have call successors, (3520) [2021-11-05 17:40:24,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85292 states to 85292 states and 119032 transitions. [2021-11-05 17:40:24,060 INFO L78 Accepts]: Start accepts. Automaton has 85292 states and 119032 transitions. Word has length 170 [2021-11-05 17:40:24,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:40:24,060 INFO L470 AbstractCegarLoop]: Abstraction has 85292 states and 119032 transitions. [2021-11-05 17:40:24,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 1 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:40:24,061 INFO L276 IsEmpty]: Start isEmpty. Operand 85292 states and 119032 transitions. [2021-11-05 17:40:24,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2021-11-05 17:40:24,062 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:40:24,063 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:40:24,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-05 17:40:24,063 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ib_uverbs_release_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ib_uverbs_release_fileErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-05 17:40:24,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:40:24,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1143899565, now seen corresponding path program 1 times [2021-11-05 17:40:24,064 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:40:24,064 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121029160] [2021-11-05 17:40:24,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:40:24,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:40:24,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:40:25,014 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-05 17:40:25,014 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:40:25,014 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121029160] [2021-11-05 17:40:25,014 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121029160] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:40:25,014 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:40:25,015 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-05 17:40:25,015 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810199445] [2021-11-05 17:40:25,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:40:25,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-05 17:40:25,016 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:40:25,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-05 17:40:25,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-05 17:40:25,016 INFO L87 Difference]: Start difference. First operand 85292 states and 119032 transitions. Second operand has 7 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 4 states have call successors, (5), 5 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:40:29,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:40:29,097 INFO L93 Difference]: Finished difference Result 170294 states and 242505 transitions. [2021-11-05 17:40:29,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-05 17:40:29,098 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 4 states have call successors, (5), 5 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 179 [2021-11-05 17:40:29,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:40:29,529 INFO L225 Difference]: With dead ends: 170294 [2021-11-05 17:40:29,529 INFO L226 Difference]: Without dead ends: 85106 [2021-11-05 17:40:29,855 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 71.92ms TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-05 17:40:29,856 INFO L933 BasicCegarLoop]: 9998 mSDtfsCounter, 26 mSDsluCounter, 49857 mSDsCounter, 0 mSdLazyCounter, 954 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1126.82ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 59855 SdHoareTripleChecker+Invalid, 971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 58.68ms SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1257.39ms IncrementalHoareTripleChecker+Time [2021-11-05 17:40:29,856 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 59855 Invalid, 971 Unknown, 0 Unchecked, 58.68ms Time], IncrementalHoareTripleChecker [17 Valid, 954 Invalid, 0 Unknown, 0 Unchecked, 1257.39ms Time] [2021-11-05 17:40:29,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85106 states. [2021-11-05 17:40:32,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85106 to 85052. [2021-11-05 17:40:32,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85052 states, 83115 states have (on average 1.3646393551103893) internal successors, (113422), 83153 states have internal predecessors, (113422), 1754 states have call successors, (1754), 180 states have call predecessors, (1754), 180 states have return successors, (4802), 1730 states have call predecessors, (4802), 1754 states have call successors, (4802) [2021-11-05 17:40:32,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85052 states to 85052 states and 119978 transitions. [2021-11-05 17:40:32,654 INFO L78 Accepts]: Start accepts. Automaton has 85052 states and 119978 transitions. Word has length 179 [2021-11-05 17:40:32,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:40:32,655 INFO L470 AbstractCegarLoop]: Abstraction has 85052 states and 119978 transitions. [2021-11-05 17:40:32,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 4 states have call successors, (5), 5 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:40:32,655 INFO L276 IsEmpty]: Start isEmpty. Operand 85052 states and 119978 transitions. [2021-11-05 17:40:32,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2021-11-05 17:40:32,659 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:40:32,660 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:40:32,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-05 17:40:32,660 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ib_uverbs_release_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ib_uverbs_release_fileErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-05 17:40:32,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:40:32,661 INFO L85 PathProgramCache]: Analyzing trace with hash 59208050, now seen corresponding path program 1 times [2021-11-05 17:40:32,661 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:40:32,661 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320105588] [2021-11-05 17:40:32,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:40:32,662 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:40:32,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:40:32,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-11-05 17:40:32,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:40:32,999 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-05 17:40:33,000 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:40:33,000 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320105588] [2021-11-05 17:40:33,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320105588] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:40:33,000 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:40:33,001 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 17:40:33,001 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321911862] [2021-11-05 17:40:33,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:40:33,002 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 17:40:33,002 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:40:33,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 17:40:33,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 17:40:33,003 INFO L87 Difference]: Start difference. First operand 85052 states and 119978 transitions. Second operand has 4 states, 4 states have (on average 49.25) internal successors, (197), 3 states have internal predecessors, (197), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-05 17:40:35,059 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:40:37,182 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:40:39,887 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:40:47,100 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:40:49,329 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:40:52,385 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []