./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 fcb8e130 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-dev-fcb8e13 [2021-11-23 00:13:43,412 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 00:13:43,414 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 00:13:43,438 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 00:13:43,439 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 00:13:43,440 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 00:13:43,441 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 00:13:43,452 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 00:13:43,453 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 00:13:43,454 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 00:13:43,455 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 00:13:43,456 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 00:13:43,456 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 00:13:43,457 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 00:13:43,457 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 00:13:43,458 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 00:13:43,459 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 00:13:43,459 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 00:13:43,460 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 00:13:43,461 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 00:13:43,462 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 00:13:43,463 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 00:13:43,464 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 00:13:43,464 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 00:13:43,471 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 00:13:43,471 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 00:13:43,472 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 00:13:43,472 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 00:13:43,473 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 00:13:43,473 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 00:13:43,474 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 00:13:43,474 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 00:13:43,475 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 00:13:43,475 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 00:13:43,476 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 00:13:43,476 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 00:13:43,477 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 00:13:43,477 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 00:13:43,477 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 00:13:43,478 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 00:13:43,478 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 00:13:43,479 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-23 00:13:43,494 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 00:13:43,494 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 00:13:43,494 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 00:13:43,495 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 00:13:43,496 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 00:13:43,496 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 00:13:43,496 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 00:13:43,496 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 00:13:43,496 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 00:13:43,496 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 00:13:43,497 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 00:13:43,497 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 00:13:43,497 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 00:13:43,497 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 00:13:43,497 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 00:13:43,497 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 00:13:43,497 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 00:13:43,498 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 00:13:43,498 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 00:13:43,498 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 00:13:43,498 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 00:13:43,498 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 00:13:43,498 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 00:13:43,498 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 00:13:43,499 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 00:13:43,499 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 00:13:43,499 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 00:13:43,499 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 00:13:43,499 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 00:13:43,499 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9be531e7af87cba73be4f8246e93f3d32963d00e421fc44d0f45559eac1d9e7a [2021-11-23 00:13:43,704 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 00:13:43,724 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 00:13:43,726 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 00:13:43,727 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 00:13:43,728 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 00:13:43,729 INFO L432 ainManager$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 [2021-11-23 00:13:43,809 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ad1819df/956d900188534016bdc46116ecc940f8/FLAGc672c3895 [2021-11-23 00:13:44,512 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 00:13:44,513 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 [2021-11-23 00:13:44,565 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ad1819df/956d900188534016bdc46116ecc940f8/FLAGc672c3895 [2021-11-23 00:13:44,757 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ad1819df/956d900188534016bdc46116ecc940f8 [2021-11-23 00:13:44,760 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 00:13:44,762 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 00:13:44,763 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 00:13:44,763 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 00:13:44,769 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 00:13:44,769 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:13:44" (1/1) ... [2021-11-23 00:13:44,770 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c211d18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:13:44, skipping insertion in model container [2021-11-23 00:13:44,770 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:13:44" (1/1) ... [2021-11-23 00:13:44,776 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 00:13:44,894 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 00:13:46,600 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--infiniband--core--ib_uverbs.ko-entry_point.cil.out.i[354644,354657] [2021-11-23 00:13:46,654 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:13:46,711 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 00:13:47,071 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--infiniband--core--ib_uverbs.ko-entry_point.cil.out.i[354644,354657] [2021-11-23 00:13:47,079 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:13:47,178 INFO L208 MainTranslator]: Completed translation [2021-11-23 00:13:47,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:13:47 WrapperNode [2021-11-23 00:13:47,178 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 00:13:47,181 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 00:13:47,181 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 00:13:47,181 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 00:13:47,187 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:13:47" (1/1) ... [2021-11-23 00:13:47,289 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:13:47" (1/1) ... [2021-11-23 00:13:48,169 INFO L137 Inliner]: procedures = 371, calls = 4454, calls flagged for inlining = 1047, calls inlined = 4542, statements flattened = 47780 [2021-11-23 00:13:48,169 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 00:13:48,170 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 00:13:48,170 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 00:13:48,170 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 00:13:48,177 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:13:47" (1/1) ... [2021-11-23 00:13:48,177 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:13:47" (1/1) ... [2021-11-23 00:13:48,458 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:13:47" (1/1) ... [2021-11-23 00:13:48,459 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:13:47" (1/1) ... [2021-11-23 00:13:49,134 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:13:47" (1/1) ... [2021-11-23 00:13:49,267 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:13:47" (1/1) ... [2021-11-23 00:13:49,332 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:13:47" (1/1) ... [2021-11-23 00:13:49,513 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 00:13:49,514 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 00:13:49,514 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 00:13:49,515 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 00:13:49,515 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:13:47" (1/1) ... [2021-11-23 00:13:49,521 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 00:13:49,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 00:13:49,541 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) [2021-11-23 00:13:49,558 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 [2021-11-23 00:13:49,569 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-11-23 00:13:49,569 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-11-23 00:13:49,569 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 00:13:49,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 00:13:49,569 INFO L130 BoogieDeclarations]: Found specification of procedure ib_uverbs_release_file [2021-11-23 00:13:49,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_uverbs_release_file [2021-11-23 00:13:49,570 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2021-11-23 00:13:49,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2021-11-23 00:13:49,570 INFO L130 BoogieDeclarations]: Found specification of procedure ib_uverbs_modify_srq [2021-11-23 00:13:49,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_uverbs_modify_srq [2021-11-23 00:13:49,570 INFO L130 BoogieDeclarations]: Found specification of procedure ib_uverbs_ex_query_device [2021-11-23 00:13:49,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_uverbs_ex_query_device [2021-11-23 00:13:49,570 INFO L130 BoogieDeclarations]: Found specification of procedure ib_uverbs_mmap [2021-11-23 00:13:49,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_uverbs_mmap [2021-11-23 00:13:49,571 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 00:13:49,571 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-23 00:13:49,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 00:13:49,571 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-11-23 00:13:49,571 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2021-11-23 00:13:49,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2021-11-23 00:13:49,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 00:13:49,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 00:13:49,572 INFO L130 BoogieDeclarations]: Found specification of procedure ib_uverbs_write [2021-11-23 00:13:49,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_uverbs_write [2021-11-23 00:13:49,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 00:13:49,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 00:13:49,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 00:13:49,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 00:13:49,572 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-11-23 00:13:49,572 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-11-23 00:13:49,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 00:13:49,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 00:13:49,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 00:13:49,573 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-23 00:13:49,573 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 00:13:49,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 00:13:49,573 INFO L130 BoogieDeclarations]: Found specification of procedure ib_uverbs_remove_one [2021-11-23 00:13:49,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_uverbs_remove_one [2021-11-23 00:13:49,573 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~TO~int [2021-11-23 00:13:49,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~TO~int [2021-11-23 00:13:49,574 INFO L130 BoogieDeclarations]: Found specification of procedure ib_uverbs_add_one [2021-11-23 00:13:49,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_uverbs_add_one [2021-11-23 00:13:49,574 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-23 00:13:49,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-23 00:13:49,574 INFO L130 BoogieDeclarations]: Found specification of procedure ib_uverbs_modify_qp [2021-11-23 00:13:49,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_uverbs_modify_qp [2021-11-23 00:13:49,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 00:13:49,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 00:13:49,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 00:13:50,860 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 00:13:50,862 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 00:14:30,583 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 00:14:30,617 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 00:14:30,618 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 00:14:30,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:14:30 BoogieIcfgContainer [2021-11-23 00:14:30,627 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 00:14:30,629 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 00:14:30,629 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 00:14:30,631 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 00:14:30,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 12:13:44" (1/3) ... [2021-11-23 00:14:30,632 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76e18cc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:14:30, skipping insertion in model container [2021-11-23 00:14:30,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:13:47" (2/3) ... [2021-11-23 00:14:30,633 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76e18cc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:14:30, skipping insertion in model container [2021-11-23 00:14:30,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:14:30" (3/3) ... [2021-11-23 00:14:30,634 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--infiniband--core--ib_uverbs.ko-entry_point.cil.out.i [2021-11-23 00:14:30,642 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 00:14:30,643 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-11-23 00:14:30,709 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 00:14:30,721 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 [2021-11-23 00:14:30,722 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-23 00:14:30,821 INFO L276 IsEmpty]: Start isEmpty. Operand has 8777 states, 8588 states have (on average 1.3390777829529577) internal successors, (11500), 8596 states have internal predecessors, (11500), 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) [2021-11-23 00:14:30,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-23 00:14:30,837 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 00:14:30,837 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] [2021-11-23 00:14:30,838 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)] === [2021-11-23 00:14:30,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:14:30,842 INFO L85 PathProgramCache]: Analyzing trace with hash -492352781, now seen corresponding path program 1 times [2021-11-23 00:14:30,847 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 00:14:30,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644332863] [2021-11-23 00:14:30,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 00:14:30,848 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:14:31,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:14:31,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:14:31,373 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 00:14:31,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644332863] [2021-11-23 00:14:31,374 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644332863] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 00:14:31,375 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 00:14:31,375 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 00:14:31,376 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987545728] [2021-11-23 00:14:31,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 00:14:31,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 00:14:31,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 00:14:31,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 00:14:31,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 00:14:31,422 INFO L87 Difference]: Start difference. First operand has 8777 states, 8588 states have (on average 1.3390777829529577) internal successors, (11500), 8596 states have internal predecessors, (11500), 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 62.0) internal successors, (124), 2 states have internal predecessors, (124), 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) [2021-11-23 00:14:31,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 00:14:31,687 INFO L93 Difference]: Finished difference Result 17545 states and 23830 transitions. [2021-11-23 00:14:31,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 00:14:31,689 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 62.0) internal successors, (124), 2 states have internal predecessors, (124), 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 124 [2021-11-23 00:14:31,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 00:14:31,730 INFO L225 Difference]: With dead ends: 17545 [2021-11-23 00:14:31,730 INFO L226 Difference]: Without dead ends: 8759 [2021-11-23 00:14:31,766 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 00:14:31,769 INFO L933 BasicCegarLoop]: 11644 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11644 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 00:14:31,770 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 11644 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 00:14:31,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8759 states. [2021-11-23 00:14:31,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8759 to 8759. [2021-11-23 00:14:31,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8759 states, 8571 states have (on average 1.3167658382919145) internal successors, (11286), 8578 states have internal predecessors, (11286), 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) [2021-11-23 00:14:32,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8759 states to 8759 states and 11622 transitions. [2021-11-23 00:14:32,019 INFO L78 Accepts]: Start accepts. Automaton has 8759 states and 11622 transitions. Word has length 124 [2021-11-23 00:14:32,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 00:14:32,020 INFO L470 AbstractCegarLoop]: Abstraction has 8759 states and 11622 transitions. [2021-11-23 00:14:32,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 62.0) internal successors, (124), 2 states have internal predecessors, (124), 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) [2021-11-23 00:14:32,020 INFO L276 IsEmpty]: Start isEmpty. Operand 8759 states and 11622 transitions. [2021-11-23 00:14:32,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-23 00:14:32,023 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 00:14:32,023 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] [2021-11-23 00:14:32,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 00:14:32,024 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)] === [2021-11-23 00:14:32,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:14:32,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1283320847, now seen corresponding path program 1 times [2021-11-23 00:14:32,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 00:14:32,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106165994] [2021-11-23 00:14:32,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 00:14:32,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:14:32,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:14:32,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:14:32,444 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 00:14:32,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106165994] [2021-11-23 00:14:32,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106165994] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 00:14:32,448 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 00:14:32,448 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 00:14:32,449 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357888925] [2021-11-23 00:14:32,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 00:14:32,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 00:14:32,450 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 00:14:32,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 00:14:32,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 00:14:32,460 INFO L87 Difference]: Start difference. First operand 8759 states and 11622 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 2 states have internal predecessors, (124), 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) [2021-11-23 00:14:32,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 00:14:32,855 INFO L93 Difference]: Finished difference Result 26063 states and 34803 transitions. [2021-11-23 00:14:32,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 00:14:32,856 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 2 states have internal predecessors, (124), 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 124 [2021-11-23 00:14:32,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 00:14:32,924 INFO L225 Difference]: With dead ends: 26063 [2021-11-23 00:14:32,925 INFO L226 Difference]: Without dead ends: 17392 [2021-11-23 00:14:32,953 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 00:14:32,954 INFO L933 BasicCegarLoop]: 11784 mSDtfsCounter, 11487 mSDsluCounter, 11495 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11487 SdHoareTripleChecker+Valid, 23279 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 00:14:32,955 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11487 Valid, 23279 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 00:14:32,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17392 states. [2021-11-23 00:14:33,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17392 to 17384. [2021-11-23 00:14:33,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17384 states, 17013 states have (on average 1.3181096808323047) internal successors, (22425), 17023 states have internal predecessors, (22425), 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) [2021-11-23 00:14:33,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17384 states to 17384 states and 23101 transitions. [2021-11-23 00:14:33,365 INFO L78 Accepts]: Start accepts. Automaton has 17384 states and 23101 transitions. Word has length 124 [2021-11-23 00:14:33,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 00:14:33,367 INFO L470 AbstractCegarLoop]: Abstraction has 17384 states and 23101 transitions. [2021-11-23 00:14:33,367 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 2 states have internal predecessors, (124), 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) [2021-11-23 00:14:33,367 INFO L276 IsEmpty]: Start isEmpty. Operand 17384 states and 23101 transitions. [2021-11-23 00:14:33,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-11-23 00:14:33,372 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 00:14:33,372 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 00:14:33,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 00:14:33,372 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)] === [2021-11-23 00:14:33,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:14:33,373 INFO L85 PathProgramCache]: Analyzing trace with hash 698013350, now seen corresponding path program 1 times [2021-11-23 00:14:33,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 00:14:33,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181958610] [2021-11-23 00:14:33,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 00:14:33,374 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:14:33,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:14:33,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:14:33,684 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 00:14:33,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181958610] [2021-11-23 00:14:33,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181958610] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 00:14:33,684 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 00:14:33,684 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 00:14:33,684 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073339152] [2021-11-23 00:14:33,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 00:14:33,686 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 00:14:33,686 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 00:14:33,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 00:14:33,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 00:14:33,687 INFO L87 Difference]: Start difference. First operand 17384 states and 23101 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) [2021-11-23 00:14:34,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 00:14:34,471 INFO L93 Difference]: Finished difference Result 51589 states and 69298 transitions. [2021-11-23 00:14:34,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 00:14:34,472 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 [2021-11-23 00:14:34,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 00:14:34,596 INFO L225 Difference]: With dead ends: 51589 [2021-11-23 00:14:34,596 INFO L226 Difference]: Without dead ends: 34309 [2021-11-23 00:14:34,658 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 00:14:34,663 INFO L933 BasicCegarLoop]: 12062 mSDtfsCounter, 11565 mSDsluCounter, 11640 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11565 SdHoareTripleChecker+Valid, 23702 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 00:14:34,666 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11565 Valid, 23702 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 00:14:34,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34309 states. [2021-11-23 00:14:35,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34309 to 34252. [2021-11-23 00:14:35,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34252 states, 33523 states have (on average 1.319929600572741) internal successors, (44248), 33537 states have internal predecessors, (44248), 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) [2021-11-23 00:14:35,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34252 states to 34252 states and 46256 transitions. [2021-11-23 00:14:35,584 INFO L78 Accepts]: Start accepts. Automaton has 34252 states and 46256 transitions. Word has length 134 [2021-11-23 00:14:35,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 00:14:35,585 INFO L470 AbstractCegarLoop]: Abstraction has 34252 states and 46256 transitions. [2021-11-23 00:14:35,585 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) [2021-11-23 00:14:35,586 INFO L276 IsEmpty]: Start isEmpty. Operand 34252 states and 46256 transitions. [2021-11-23 00:14:35,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-11-23 00:14:35,588 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 00:14:35,588 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] [2021-11-23 00:14:35,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 00:14:35,589 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)] === [2021-11-23 00:14:35,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:14:35,589 INFO L85 PathProgramCache]: Analyzing trace with hash -74110657, now seen corresponding path program 1 times [2021-11-23 00:14:35,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 00:14:35,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985569758] [2021-11-23 00:14:35,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 00:14:35,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:14:35,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:14:35,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:14:35,847 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 00:14:35,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985569758] [2021-11-23 00:14:35,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985569758] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 00:14:35,847 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 00:14:35,848 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 00:14:35,848 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592881679] [2021-11-23 00:14:35,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 00:14:35,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 00:14:35,849 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 00:14:35,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 00:14:35,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 00:14:35,850 INFO L87 Difference]: Start difference. First operand 34252 states and 46256 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 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) [2021-11-23 00:14:36,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 00:14:36,862 INFO L93 Difference]: Finished difference Result 67968 states and 91805 transitions. [2021-11-23 00:14:36,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 00:14:36,863 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 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 138 [2021-11-23 00:14:36,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 00:14:36,992 INFO L225 Difference]: With dead ends: 67968 [2021-11-23 00:14:36,993 INFO L226 Difference]: Without dead ends: 33820 [2021-11-23 00:14:37,091 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 00:14:37,097 INFO L933 BasicCegarLoop]: 11474 mSDtfsCounter, 11469 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11469 SdHoareTripleChecker+Valid, 11474 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 00:14:37,098 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11469 Valid, 11474 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 00:14:37,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33820 states. [2021-11-23 00:14:38,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33820 to 33820. [2021-11-23 00:14:38,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33820 states, 33099 states have (on average 1.3195564820689447) internal successors, (43676), 33113 states have internal predecessors, (43676), 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) [2021-11-23 00:14:38,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33820 states to 33820 states and 45660 transitions. [2021-11-23 00:14:38,358 INFO L78 Accepts]: Start accepts. Automaton has 33820 states and 45660 transitions. Word has length 138 [2021-11-23 00:14:38,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 00:14:38,359 INFO L470 AbstractCegarLoop]: Abstraction has 33820 states and 45660 transitions. [2021-11-23 00:14:38,359 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 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) [2021-11-23 00:14:38,360 INFO L276 IsEmpty]: Start isEmpty. Operand 33820 states and 45660 transitions. [2021-11-23 00:14:38,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-11-23 00:14:38,362 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 00:14:38,363 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] [2021-11-23 00:14:38,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 00:14:38,366 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)] === [2021-11-23 00:14:38,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:14:38,367 INFO L85 PathProgramCache]: Analyzing trace with hash 739140649, now seen corresponding path program 1 times [2021-11-23 00:14:38,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 00:14:38,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004119735] [2021-11-23 00:14:38,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 00:14:38,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:14:38,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:14:38,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:14:38,667 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 00:14:38,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004119735] [2021-11-23 00:14:38,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004119735] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 00:14:38,668 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 00:14:38,668 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 00:14:38,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955760635] [2021-11-23 00:14:38,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 00:14:38,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 00:14:38,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 00:14:38,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 00:14:38,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 00:14:38,669 INFO L87 Difference]: Start difference. First operand 33820 states and 45660 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) [2021-11-23 00:14:39,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 00:14:39,690 INFO L93 Difference]: Finished difference Result 65518 states and 88625 transitions. [2021-11-23 00:14:39,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 00:14:39,690 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 [2021-11-23 00:14:39,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 00:14:39,798 INFO L225 Difference]: With dead ends: 65518 [2021-11-23 00:14:39,798 INFO L226 Difference]: Without dead ends: 31802 [2021-11-23 00:14:39,862 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 00:14:39,863 INFO L933 BasicCegarLoop]: 10844 mSDtfsCounter, 10834 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10834 SdHoareTripleChecker+Valid, 10844 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 00:14:39,863 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10834 Valid, 10844 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 00:14:39,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31802 states. [2021-11-23 00:14:40,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31802 to 31802. [2021-11-23 00:14:40,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31802 states, 31155 states have (on average 1.325629914941422) internal successors, (41300), 31167 states have internal predecessors, (41300), 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) [2021-11-23 00:14:40,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31802 states to 31802 states and 43076 transitions. [2021-11-23 00:14:40,640 INFO L78 Accepts]: Start accepts. Automaton has 31802 states and 43076 transitions. Word has length 142 [2021-11-23 00:14:40,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 00:14:40,641 INFO L470 AbstractCegarLoop]: Abstraction has 31802 states and 43076 transitions. [2021-11-23 00:14:40,641 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) [2021-11-23 00:14:40,641 INFO L276 IsEmpty]: Start isEmpty. Operand 31802 states and 43076 transitions. [2021-11-23 00:14:40,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-11-23 00:14:40,642 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 00:14:40,643 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] [2021-11-23 00:14:40,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 00:14:40,643 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)] === [2021-11-23 00:14:40,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:14:40,644 INFO L85 PathProgramCache]: Analyzing trace with hash 294008894, now seen corresponding path program 1 times [2021-11-23 00:14:40,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 00:14:40,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274546207] [2021-11-23 00:14:40,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 00:14:40,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:14:40,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:14:41,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:14:41,073 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 00:14:41,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274546207] [2021-11-23 00:14:41,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274546207] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 00:14:41,073 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 00:14:41,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 00:14:41,074 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285433102] [2021-11-23 00:14:41,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 00:14:41,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 00:14:41,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 00:14:41,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 00:14:41,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 00:14:41,075 INFO L87 Difference]: Start difference. First operand 31802 states and 43076 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) [2021-11-23 00:14:42,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 00:14:42,491 INFO L93 Difference]: Finished difference Result 95138 states and 128906 transitions. [2021-11-23 00:14:42,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 00:14:42,492 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 [2021-11-23 00:14:42,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 00:14:42,730 INFO L225 Difference]: With dead ends: 95138 [2021-11-23 00:14:42,730 INFO L226 Difference]: Without dead ends: 63440 [2021-11-23 00:14:42,840 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 00:14:42,842 INFO L933 BasicCegarLoop]: 21450 mSDtfsCounter, 10813 mSDsluCounter, 10721 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10813 SdHoareTripleChecker+Valid, 32171 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 00:14:42,842 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10813 Valid, 32171 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 00:14:43,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63440 states. [2021-11-23 00:14:44,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63440 to 63416. [2021-11-23 00:14:44,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63416 states, 62133 states have (on average 1.3260425216873482) internal successors, (82391), 62155 states have internal predecessors, (82391), 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) [2021-11-23 00:14:44,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63416 states to 63416 states and 85919 transitions. [2021-11-23 00:14:44,853 INFO L78 Accepts]: Start accepts. Automaton has 63416 states and 85919 transitions. Word has length 148 [2021-11-23 00:14:44,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 00:14:44,854 INFO L470 AbstractCegarLoop]: Abstraction has 63416 states and 85919 transitions. [2021-11-23 00:14:44,854 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) [2021-11-23 00:14:44,854 INFO L276 IsEmpty]: Start isEmpty. Operand 63416 states and 85919 transitions. [2021-11-23 00:14:44,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-11-23 00:14:44,856 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 00:14:44,856 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] [2021-11-23 00:14:44,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 00:14:44,856 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)] === [2021-11-23 00:14:44,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:14:44,857 INFO L85 PathProgramCache]: Analyzing trace with hash 206936321, now seen corresponding path program 1 times [2021-11-23 00:14:44,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 00:14:44,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803911952] [2021-11-23 00:14:44,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 00:14:44,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:14:45,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:14:45,126 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:14:45,127 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 00:14:45,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803911952] [2021-11-23 00:14:45,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803911952] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 00:14:45,127 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 00:14:45,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 00:14:45,127 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993550188] [2021-11-23 00:14:45,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 00:14:45,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 00:14:45,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 00:14:45,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 00:14:45,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 00:14:45,129 INFO L87 Difference]: Start difference. First operand 63416 states and 85919 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 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) [2021-11-23 00:14:47,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 00:14:47,213 INFO L93 Difference]: Finished difference Result 158390 states and 214632 transitions. [2021-11-23 00:14:47,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 00:14:47,214 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 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 171 [2021-11-23 00:14:47,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 00:14:47,500 INFO L225 Difference]: With dead ends: 158390 [2021-11-23 00:14:47,500 INFO L226 Difference]: Without dead ends: 95078 [2021-11-23 00:14:47,675 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 00:14:47,675 INFO L933 BasicCegarLoop]: 21410 mSDtfsCounter, 10707 mSDsluCounter, 10827 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10707 SdHoareTripleChecker+Valid, 32237 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 00:14:47,676 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10707 Valid, 32237 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 00:14:47,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95078 states. [2021-11-23 00:14:49,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95078 to 95054. [2021-11-23 00:14:49,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95054 states, 93135 states have (on average 1.326182423363934) internal successors, (123514), 93167 states have internal predecessors, (123514), 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) [2021-11-23 00:14:50,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95054 states to 95054 states and 128794 transitions. [2021-11-23 00:14:50,239 INFO L78 Accepts]: Start accepts. Automaton has 95054 states and 128794 transitions. Word has length 171 [2021-11-23 00:14:50,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 00:14:50,239 INFO L470 AbstractCegarLoop]: Abstraction has 95054 states and 128794 transitions. [2021-11-23 00:14:50,240 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 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) [2021-11-23 00:14:50,240 INFO L276 IsEmpty]: Start isEmpty. Operand 95054 states and 128794 transitions. [2021-11-23 00:14:50,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2021-11-23 00:14:50,243 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 00:14:50,244 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, 1, 1, 1, 1] [2021-11-23 00:14:50,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 00:14:50,244 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)] === [2021-11-23 00:14:50,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:14:50,245 INFO L85 PathProgramCache]: Analyzing trace with hash -220481892, now seen corresponding path program 1 times [2021-11-23 00:14:50,245 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 00:14:50,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016197095] [2021-11-23 00:14:50,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 00:14:50,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:14:50,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:14:51,147 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-23 00:14:51,147 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 00:14:51,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016197095] [2021-11-23 00:14:51,147 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016197095] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 00:14:51,147 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 00:14:51,147 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-23 00:14:51,148 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471788220] [2021-11-23 00:14:51,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 00:14:51,148 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-23 00:14:51,148 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 00:14:51,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-23 00:14:51,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-23 00:14:51,148 INFO L87 Difference]: Start difference. First operand 95054 states and 128794 transitions. Second operand has 7 states, 6 states have (on average 28.666666666666668) internal successors, (172), 5 states have internal predecessors, (172), 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) [2021-11-23 00:14:56,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 00:14:56,281 INFO L93 Difference]: Finished difference Result 189728 states and 261939 transitions. [2021-11-23 00:14:56,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 00:14:56,281 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 28.666666666666668) internal successors, (172), 5 states have internal predecessors, (172), 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 183 [2021-11-23 00:14:56,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 00:14:56,669 INFO L225 Difference]: With dead ends: 189728 [2021-11-23 00:14:56,669 INFO L226 Difference]: Without dead ends: 94778 [2021-11-23 00:14:56,972 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-23 00:14:56,973 INFO L933 BasicCegarLoop]: 10829 mSDtfsCounter, 32 mSDsluCounter, 54010 mSDsCounter, 0 mSdLazyCounter, 954 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 64839 SdHoareTripleChecker+Invalid, 971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-23 00:14:56,973 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 64839 Invalid, 971 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [17 Valid, 954 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-11-23 00:14:57,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94778 states. [2021-11-23 00:14:59,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94778 to 94724. [2021-11-23 00:14:59,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94724 states, 92787 states have (on average 1.3266298080550076) internal successors, (123094), 92825 states have internal predecessors, (123094), 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) [2021-11-23 00:15:00,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94724 states to 94724 states and 129650 transitions. [2021-11-23 00:15:00,045 INFO L78 Accepts]: Start accepts. Automaton has 94724 states and 129650 transitions. Word has length 183 [2021-11-23 00:15:00,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 00:15:00,046 INFO L470 AbstractCegarLoop]: Abstraction has 94724 states and 129650 transitions. [2021-11-23 00:15:00,046 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 28.666666666666668) internal successors, (172), 5 states have internal predecessors, (172), 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) [2021-11-23 00:15:00,046 INFO L276 IsEmpty]: Start isEmpty. Operand 94724 states and 129650 transitions. [2021-11-23 00:15:00,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2021-11-23 00:15:00,050 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 00:15:00,051 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, 1, 1, 1, 1, 1, 1] [2021-11-23 00:15:00,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-23 00:15:00,051 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)] === [2021-11-23 00:15:00,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:15:00,052 INFO L85 PathProgramCache]: Analyzing trace with hash -333606494, now seen corresponding path program 1 times [2021-11-23 00:15:00,052 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 00:15:00,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623399948] [2021-11-23 00:15:00,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 00:15:00,052 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:15:00,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:15:00,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-23 00:15:00,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:15:00,516 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-23 00:15:00,516 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 00:15:00,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623399948] [2021-11-23 00:15:00,517 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623399948] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 00:15:00,517 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 00:15:00,517 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 00:15:00,517 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534870920] [2021-11-23 00:15:00,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 00:15:00,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 00:15:00,518 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 00:15:00,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 00:15:00,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 00:15:00,519 INFO L87 Difference]: Start difference. First operand 94724 states and 129650 transitions. Second operand has 4 states, 4 states have (on average 50.75) internal successors, (203), 3 states have internal predecessors, (203), 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) [2021-11-23 00:15:10,464 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:15:12,698 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:15:16,440 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:15:20,293 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:15:22,331 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:15:24,975 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:15:27,766 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:15:31,083 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:15:33,486 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:15:39,603 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:15:43,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 00:15:43,540 INFO L93 Difference]: Finished difference Result 236360 states and 326651 transitions. [2021-11-23 00:15:43,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 00:15:43,541 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 50.75) internal successors, (203), 3 states have internal predecessors, (203), 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) Word has length 215 [2021-11-23 00:15:43,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 00:15:43,988 INFO L225 Difference]: With dead ends: 236360 [2021-11-23 00:15:43,988 INFO L226 Difference]: Without dead ends: 141740 [2021-11-23 00:15:44,200 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 00:15:44,201 INFO L933 BasicCegarLoop]: 11742 mSDtfsCounter, 10729 mSDsluCounter, 19758 mSDsCounter, 0 mSdLazyCounter, 3108 mSolverCounterSat, 367 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10729 SdHoareTripleChecker+Valid, 31500 SdHoareTripleChecker+Invalid, 3483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 367 IncrementalHoareTripleChecker+Valid, 3108 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.7s IncrementalHoareTripleChecker+Time [2021-11-23 00:15:44,201 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10729 Valid, 31500 Invalid, 3483 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [367 Valid, 3108 Invalid, 8 Unknown, 0 Unchecked, 39.7s Time] [2021-11-23 00:15:44,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141740 states. [2021-11-23 00:15:47,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141740 to 141344. [2021-11-23 00:15:48,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141344 states, 138419 states have (on average 1.3273105570767019) internal successors, (183725), 138517 states have internal predecessors, (183725), 2604 states have call successors, (2604), 264 states have call predecessors, (2604), 318 states have return successors, (9496), 2580 states have call predecessors, (9496), 2604 states have call successors, (9496) [2021-11-23 00:15:48,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141344 states to 141344 states and 195825 transitions. [2021-11-23 00:15:48,829 INFO L78 Accepts]: Start accepts. Automaton has 141344 states and 195825 transitions. Word has length 215 [2021-11-23 00:15:48,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 00:15:48,829 INFO L470 AbstractCegarLoop]: Abstraction has 141344 states and 195825 transitions. [2021-11-23 00:15:48,829 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.75) internal successors, (203), 3 states have internal predecessors, (203), 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) [2021-11-23 00:15:48,829 INFO L276 IsEmpty]: Start isEmpty. Operand 141344 states and 195825 transitions. [2021-11-23 00:15:48,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2021-11-23 00:15:48,833 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 00:15:48,833 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 00:15:48,833 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-23 00:15:48,834 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ib_uverbs_release_fileErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-23 00:15:48,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:15:48,834 INFO L85 PathProgramCache]: Analyzing trace with hash 194550799, now seen corresponding path program 1 times [2021-11-23 00:15:48,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 00:15:48,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038939496] [2021-11-23 00:15:48,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 00:15:48,835 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:15:48,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:15:49,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-23 00:15:49,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:15:49,148 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-23 00:15:49,149 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 00:15:49,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038939496] [2021-11-23 00:15:49,149 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038939496] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 00:15:49,149 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 00:15:49,149 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 00:15:49,149 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338748292] [2021-11-23 00:15:49,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 00:15:49,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 00:15:49,150 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 00:15:49,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 00:15:49,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 00:15:49,151 INFO L87 Difference]: Start difference. First operand 141344 states and 195825 transitions. Second operand has 4 states, 4 states have (on average 52.0) internal successors, (208), 3 states have internal predecessors, (208), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 00:15:56,981 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:15:59,304 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:16:02,630 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:16:07,230 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:16:09,838 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:16:12,454 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:16:15,173 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:16:18,236 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:16:23,354 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:16:24,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 00:16:24,865 INFO L93 Difference]: Finished difference Result 282839 states and 392650 transitions. [2021-11-23 00:16:24,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 00:16:24,865 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 52.0) internal successors, (208), 3 states have internal predecessors, (208), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 217 [2021-11-23 00:16:24,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 00:16:25,296 INFO L225 Difference]: With dead ends: 282839 [2021-11-23 00:16:25,296 INFO L226 Difference]: Without dead ends: 141599 [2021-11-23 00:16:25,577 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 00:16:25,577 INFO L933 BasicCegarLoop]: 10905 mSDtfsCounter, 100 mSDsluCounter, 19387 mSDsCounter, 0 mSdLazyCounter, 2353 mSolverCounterSat, 159 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 30292 SdHoareTripleChecker+Invalid, 2521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 2353 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.2s IncrementalHoareTripleChecker+Time [2021-11-23 00:16:25,578 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 30292 Invalid, 2521 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [159 Valid, 2353 Invalid, 9 Unknown, 0 Unchecked, 32.2s Time] [2021-11-23 00:16:25,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141599 states. [2021-11-23 00:16:29,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141599 to 141344. [2021-11-23 00:16:29,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141344 states, 138419 states have (on average 1.327180517125539) internal successors, (183707), 138517 states have internal predecessors, (183707), 2604 states have call successors, (2604), 264 states have call predecessors, (2604), 318 states have return successors, (9496), 2580 states have call predecessors, (9496), 2604 states have call successors, (9496) [2021-11-23 00:16:30,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141344 states to 141344 states and 195807 transitions. [2021-11-23 00:16:30,245 INFO L78 Accepts]: Start accepts. Automaton has 141344 states and 195807 transitions. Word has length 217 [2021-11-23 00:16:30,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 00:16:30,247 INFO L470 AbstractCegarLoop]: Abstraction has 141344 states and 195807 transitions. [2021-11-23 00:16:30,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.0) internal successors, (208), 3 states have internal predecessors, (208), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 00:16:30,247 INFO L276 IsEmpty]: Start isEmpty. Operand 141344 states and 195807 transitions. [2021-11-23 00:16:30,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2021-11-23 00:16:30,251 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 00:16:30,251 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 00:16:30,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-23 00:16:30,251 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ib_uverbs_release_fileErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-23 00:16:30,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:16:30,252 INFO L85 PathProgramCache]: Analyzing trace with hash 504087156, now seen corresponding path program 1 times [2021-11-23 00:16:30,252 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 00:16:30,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477215393] [2021-11-23 00:16:30,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 00:16:30,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:16:30,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:16:30,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-23 00:16:30,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:16:30,814 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-23 00:16:30,814 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 00:16:30,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477215393] [2021-11-23 00:16:30,814 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477215393] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 00:16:30,814 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 00:16:30,814 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-23 00:16:30,814 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130911873] [2021-11-23 00:16:30,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 00:16:30,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 00:16:30,815 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 00:16:30,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 00:16:30,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-23 00:16:30,816 INFO L87 Difference]: Start difference. First operand 141344 states and 195807 transitions. Second operand has 8 states, 8 states have (on average 26.375) internal successors, (211), 7 states have internal predecessors, (211), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 00:16:33,345 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:16:40,200 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:16:42,385 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:16:46,341 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:16:49,374 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:16:51,414 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:16:54,048 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:16:56,950 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:16:59,134 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:17:01,584 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:17:06,968 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:17:09,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 00:17:09,333 INFO L93 Difference]: Finished difference Result 282959 states and 398376 transitions. [2021-11-23 00:17:09,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 00:17:09,333 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 26.375) internal successors, (211), 7 states have internal predecessors, (211), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 219 [2021-11-23 00:17:09,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 00:17:09,932 INFO L225 Difference]: With dead ends: 282959 [2021-11-23 00:17:09,933 INFO L226 Difference]: Without dead ends: 141719 [2021-11-23 00:17:10,644 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-11-23 00:17:10,644 INFO L933 BasicCegarLoop]: 10912 mSDtfsCounter, 120 mSDsluCounter, 63036 mSDsCounter, 0 mSdLazyCounter, 2622 mSolverCounterSat, 154 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 73948 SdHoareTripleChecker+Invalid, 2784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 2622 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.1s IncrementalHoareTripleChecker+Time [2021-11-23 00:17:10,644 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 73948 Invalid, 2784 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [154 Valid, 2622 Invalid, 8 Unknown, 0 Unchecked, 34.1s Time] [2021-11-23 00:17:10,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141719 states. [2021-11-23 00:17:14,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141719 to 141458. [2021-11-23 00:17:15,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141458 states, 138521 states have (on average 1.326939597606139) internal successors, (183809), 138631 states have internal predecessors, (183809), 2604 states have call successors, (2604), 264 states have call predecessors, (2604), 330 states have return successors, (9512), 2580 states have call predecessors, (9512), 2604 states have call successors, (9512) [2021-11-23 00:17:15,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141458 states to 141458 states and 195925 transitions. [2021-11-23 00:17:15,615 INFO L78 Accepts]: Start accepts. Automaton has 141458 states and 195925 transitions. Word has length 219 [2021-11-23 00:17:15,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 00:17:15,616 INFO L470 AbstractCegarLoop]: Abstraction has 141458 states and 195925 transitions. [2021-11-23 00:17:15,616 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 26.375) internal successors, (211), 7 states have internal predecessors, (211), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 00:17:15,616 INFO L276 IsEmpty]: Start isEmpty. Operand 141458 states and 195925 transitions. [2021-11-23 00:17:15,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2021-11-23 00:17:15,620 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 00:17:15,620 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 00:17:15,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-23 00:17:15,620 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ib_uverbs_release_fileErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-23 00:17:15,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:17:15,621 INFO L85 PathProgramCache]: Analyzing trace with hash 456410332, now seen corresponding path program 1 times [2021-11-23 00:17:15,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 00:17:15,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565614385] [2021-11-23 00:17:15,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 00:17:15,621 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:17:16,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:17:16,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-23 00:17:16,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:17:16,636 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-23 00:17:16,636 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 00:17:16,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565614385] [2021-11-23 00:17:16,636 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565614385] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 00:17:16,637 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 00:17:16,637 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 00:17:16,637 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703049573] [2021-11-23 00:17:16,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 00:17:16,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 00:17:16,638 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 00:17:16,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 00:17:16,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 00:17:16,638 INFO L87 Difference]: Start difference. First operand 141458 states and 195925 transitions. Second operand has 4 states, 4 states have (on average 54.0) internal successors, (216), 3 states have internal predecessors, (216), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 00:17:20,275 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:17:29,031 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:17:31,296 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:17:35,261 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:17:37,496 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:17:39,517 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:17:41,557 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:17:43,826 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:17:46,675 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:17:48,735 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:17:50,689 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:17:53,895 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:17:59,424 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 00:18:01,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 00:18:01,318 INFO L93 Difference]: Finished difference Result 283099 states and 392898 transitions. [2021-11-23 00:18:01,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 00:18:01,319 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 54.0) internal successors, (216), 3 states have internal predecessors, (216), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 225 [2021-11-23 00:18:01,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 00:18:01,938 INFO L225 Difference]: With dead ends: 283099 [2021-11-23 00:18:01,939 INFO L226 Difference]: Without dead ends: 141713 [2021-11-23 00:18:02,305 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 00:18:02,306 INFO L933 BasicCegarLoop]: 10901 mSDtfsCounter, 100 mSDsluCounter, 19365 mSDsCounter, 0 mSdLazyCounter, 2376 mSolverCounterSat, 165 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 30266 SdHoareTripleChecker+Invalid, 2548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 2376 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.6s IncrementalHoareTripleChecker+Time [2021-11-23 00:18:02,309 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 30266 Invalid, 2548 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [165 Valid, 2376 Invalid, 7 Unknown, 0 Unchecked, 40.6s Time] [2021-11-23 00:18:02,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141713 states. [2021-11-23 00:18:06,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141713 to 141464. [2021-11-23 00:18:06,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141464 states, 138527 states have (on average 1.3269254369184347) internal successors, (183815), 138637 states have internal predecessors, (183815), 2604 states have call successors, (2604), 264 states have call predecessors, (2604), 330 states have return successors, (9512), 2580 states have call predecessors, (9512), 2604 states have call successors, (9512)