./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 5b36d44f Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--infiniband--core--ib_uverbs.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 9be531e7af87cba73be4f8246e93f3d32963d00e421fc44d0f45559eac1d9e7a --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 14:12:46,831 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 14:12:46,860 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 14:12:46,893 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 14:12:46,894 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 14:12:46,897 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 14:12:46,899 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 14:12:46,904 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 14:12:46,906 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 14:12:46,911 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 14:12:46,911 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 14:12:46,913 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 14:12:46,913 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 14:12:46,915 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 14:12:46,916 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 14:12:46,920 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 14:12:46,921 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 14:12:46,922 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 14:12:46,928 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 14:12:46,933 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 14:12:46,934 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 14:12:46,935 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 14:12:46,936 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 14:12:46,937 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 14:12:46,939 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 14:12:46,939 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 14:12:46,940 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 14:12:46,941 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 14:12:46,941 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 14:12:46,942 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 14:12:46,942 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 14:12:46,943 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 14:12:46,945 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 14:12:46,945 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 14:12:46,946 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 14:12:46,946 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 14:12:46,947 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 14:12:46,947 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 14:12:46,947 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 14:12:46,947 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 14:12:46,948 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 14:12:46,948 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 14:12:46,977 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 14:12:46,978 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 14:12:46,978 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 14:12:46,978 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 14:12:46,979 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 14:12:46,979 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 14:12:46,979 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 14:12:46,980 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 14:12:46,980 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 14:12:46,980 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 14:12:46,981 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 14:12:46,981 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 14:12:46,981 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 14:12:46,981 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 14:12:46,981 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 14:12:46,981 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 14:12:46,981 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 14:12:46,982 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 14:12:46,982 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 14:12:46,982 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 14:12:46,982 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 14:12:46,982 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 14:12:46,982 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 14:12:46,982 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 14:12:46,983 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 14:12:46,983 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 14:12:46,983 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 14:12:46,983 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 14:12:46,983 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 14:12:46,983 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9be531e7af87cba73be4f8246e93f3d32963d00e421fc44d0f45559eac1d9e7a [2021-11-07 14:12:47,170 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 14:12:47,189 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 14:12:47,190 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 14:12:47,191 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 14:12:47,205 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 14:12:47,207 INFO L432 ainManager$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 [2021-11-07 14:12:47,270 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4820d6d6/a267682067604a42a1078f9bfca7dfa0/FLAG2658b9545 [2021-11-07 14:12:47,898 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 14:12:47,898 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 [2021-11-07 14:12:47,935 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4820d6d6/a267682067604a42a1078f9bfca7dfa0/FLAG2658b9545 [2021-11-07 14:12:47,997 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4820d6d6/a267682067604a42a1078f9bfca7dfa0 [2021-11-07 14:12:47,999 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 14:12:48,000 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 14:12:48,001 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 14:12:48,001 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 14:12:48,004 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 14:12:48,004 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:12:47" (1/1) ... [2021-11-07 14:12:48,005 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58a51271 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:12:48, skipping insertion in model container [2021-11-07 14:12:48,005 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:12:47" (1/1) ... [2021-11-07 14:12:48,010 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 14:12:48,120 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 14:12:50,376 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--infiniband--core--ib_uverbs.ko-entry_point.cil.out.i[354644,354657] [2021-11-07 14:12:50,431 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 14:12:50,495 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 14:12:50,952 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--infiniband--core--ib_uverbs.ko-entry_point.cil.out.i[354644,354657] [2021-11-07 14:12:50,967 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 14:12:51,034 INFO L208 MainTranslator]: Completed translation [2021-11-07 14:12:51,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:12:51 WrapperNode [2021-11-07 14:12:51,035 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 14:12:51,036 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 14:12:51,036 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 14:12:51,036 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 14:12:51,042 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:12:51" (1/1) ... [2021-11-07 14:12:51,119 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:12:51" (1/1) ... [2021-11-07 14:12:52,150 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 14:12:52,152 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 14:12:52,152 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 14:12:52,152 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 14:12:52,158 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:12:51" (1/1) ... [2021-11-07 14:12:52,158 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:12:51" (1/1) ... [2021-11-07 14:12:52,410 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:12:51" (1/1) ... [2021-11-07 14:12:52,410 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:12:51" (1/1) ... [2021-11-07 14:12:53,010 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:12:51" (1/1) ... [2021-11-07 14:12:53,238 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:12:51" (1/1) ... [2021-11-07 14:12:53,324 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:12:51" (1/1) ... [2021-11-07 14:12:53,458 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 14:12:53,459 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 14:12:53,460 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 14:12:53,460 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 14:12:53,461 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:12:51" (1/1) ... [2021-11-07 14:12:53,466 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 14:12:53,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 14:12:53,484 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) [2021-11-07 14:12:53,519 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-11-07 14:12:53,520 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-11-07 14:12:53,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 14:12:53,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 14:12:53,520 INFO L130 BoogieDeclarations]: Found specification of procedure ib_uverbs_release_file [2021-11-07 14:12:53,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_uverbs_release_file [2021-11-07 14:12:53,521 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2021-11-07 14:12:53,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2021-11-07 14:12:53,521 INFO L130 BoogieDeclarations]: Found specification of procedure ib_uverbs_modify_srq [2021-11-07 14:12:53,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_uverbs_modify_srq [2021-11-07 14:12:53,521 INFO L130 BoogieDeclarations]: Found specification of procedure ib_uverbs_ex_query_device [2021-11-07 14:12:53,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_uverbs_ex_query_device [2021-11-07 14:12:53,521 INFO L130 BoogieDeclarations]: Found specification of procedure ib_uverbs_mmap [2021-11-07 14:12:53,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_uverbs_mmap [2021-11-07 14:12:53,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 14:12:53,522 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-07 14:12:53,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 14:12:53,522 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-11-07 14:12:53,522 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2021-11-07 14:12:53,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2021-11-07 14:12:53,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 14:12:53,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 14:12:53,522 INFO L130 BoogieDeclarations]: Found specification of procedure ib_uverbs_write [2021-11-07 14:12:53,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_uverbs_write [2021-11-07 14:12:53,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 14:12:53,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 14:12:53,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 14:12:53,523 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 [2021-11-07 14:12:53,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 14:12:53,524 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-11-07 14:12:53,524 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-11-07 14:12:53,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 14:12:53,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 14:12:53,524 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-07 14:12:53,524 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 14:12:53,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 14:12:53,524 INFO L130 BoogieDeclarations]: Found specification of procedure ib_uverbs_remove_one [2021-11-07 14:12:53,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_uverbs_remove_one [2021-11-07 14:12:53,525 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~TO~int [2021-11-07 14:12:53,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~TO~int [2021-11-07 14:12:53,525 INFO L130 BoogieDeclarations]: Found specification of procedure ib_uverbs_add_one [2021-11-07 14:12:53,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_uverbs_add_one [2021-11-07 14:12:53,525 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-07 14:12:53,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-07 14:12:53,525 INFO L130 BoogieDeclarations]: Found specification of procedure ib_uverbs_modify_qp [2021-11-07 14:12:53,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_uverbs_modify_qp [2021-11-07 14:12:53,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 14:12:53,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 14:12:53,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 14:13:34,615 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 14:13:34,616 INFO L299 CfgBuilder]: Removed 9079 assume(true) statements. [2021-11-07 14:13:34,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:13:34 BoogieIcfgContainer [2021-11-07 14:13:34,622 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 14:13:34,623 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 14:13:34,623 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 14:13:34,632 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 14:13:34,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:12:47" (1/3) ... [2021-11-07 14:13:34,633 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d6b7ea1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:13:34, skipping insertion in model container [2021-11-07 14:13:34,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:12:51" (2/3) ... [2021-11-07 14:13:34,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d6b7ea1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:13:34, skipping insertion in model container [2021-11-07 14:13:34,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:13:34" (3/3) ... [2021-11-07 14:13:34,635 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--infiniband--core--ib_uverbs.ko-entry_point.cil.out.i [2021-11-07 14:13:34,638 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 14:13:34,638 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-11-07 14:13:34,710 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 14:13:34,714 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 [2021-11-07 14:13:34,715 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-07 14:13:34,948 INFO L276 IsEmpty]: Start isEmpty. Operand has 7835 states, 7646 states have (on average 1.3808527334554015) internal successors, (10558), 7654 states have internal predecessors, (10558), 168 states have call successors, (168), 15 states have call predecessors, (168), 15 states have return successors, (168), 166 states have call predecessors, (168), 168 states have call successors, (168) [2021-11-07 14:13:34,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-07 14:13:34,967 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:13:34,967 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 14:13:34,968 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)] === [2021-11-07 14:13:34,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:13:34,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1001547020, now seen corresponding path program 1 times [2021-11-07 14:13:34,982 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:13:34,982 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794918267] [2021-11-07 14:13:34,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:13:34,983 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:13:35,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:13:35,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 14:13:35,507 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:13:35,507 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794918267] [2021-11-07 14:13:35,507 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794918267] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:13:35,508 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:13:35,509 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 14:13:35,510 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338475795] [2021-11-07 14:13:35,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:13:35,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 14:13:35,514 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:13:35,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 14:13:35,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 14:13:35,542 INFO L87 Difference]: Start difference. First operand has 7835 states, 7646 states have (on average 1.3808527334554015) internal successors, (10558), 7654 states have internal predecessors, (10558), 168 states have call successors, (168), 15 states have call predecessors, (168), 15 states have return successors, (168), 166 states have call predecessors, (168), 168 states have call successors, (168) Second operand has 2 states, 2 states have (on average 61.5) internal successors, (123), 2 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:13:35,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:13:35,765 INFO L93 Difference]: Finished difference Result 15666 states and 21951 transitions. [2021-11-07 14:13:35,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 14:13:35,767 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 61.5) internal successors, (123), 2 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 123 [2021-11-07 14:13:35,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:13:35,801 INFO L225 Difference]: With dead ends: 15666 [2021-11-07 14:13:35,801 INFO L226 Difference]: Without dead ends: 7822 [2021-11-07 14:13:35,842 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.02ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 14:13:35,845 INFO L933 BasicCegarLoop]: 10707 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10707 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 25.75ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-07 14:13:35,845 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 10707 Invalid, 0 Unknown, 0 Unchecked, 25.75ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-07 14:13:35,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7822 states. [2021-11-07 14:13:36,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7822 to 7822. [2021-11-07 14:13:36,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7822 states, 7634 states have (on average 1.355645795127063) internal successors, (10349), 7641 states have internal predecessors, (10349), 168 states have call successors, (168), 15 states have call predecessors, (168), 15 states have return successors, (168), 166 states have call predecessors, (168), 168 states have call successors, (168) [2021-11-07 14:13:36,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7822 states to 7822 states and 10685 transitions. [2021-11-07 14:13:36,082 INFO L78 Accepts]: Start accepts. Automaton has 7822 states and 10685 transitions. Word has length 123 [2021-11-07 14:13:36,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:13:36,082 INFO L470 AbstractCegarLoop]: Abstraction has 7822 states and 10685 transitions. [2021-11-07 14:13:36,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 61.5) internal successors, (123), 2 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:13:36,083 INFO L276 IsEmpty]: Start isEmpty. Operand 7822 states and 10685 transitions. [2021-11-07 14:13:36,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-07 14:13:36,086 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:13:36,086 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 14:13:36,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 14:13:36,087 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)] === [2021-11-07 14:13:36,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:13:36,088 INFO L85 PathProgramCache]: Analyzing trace with hash -1568801746, now seen corresponding path program 1 times [2021-11-07 14:13:36,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:13:36,088 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345688767] [2021-11-07 14:13:36,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:13:36,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:13:36,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:13:36,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 14:13:36,466 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:13:36,466 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345688767] [2021-11-07 14:13:36,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345688767] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:13:36,466 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:13:36,467 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 14:13:36,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052655023] [2021-11-07 14:13:36,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:13:36,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 14:13:36,472 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:13:36,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 14:13:36,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:13:36,474 INFO L87 Difference]: Start difference. First operand 7822 states and 10685 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 2 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:13:36,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:13:36,891 INFO L93 Difference]: Finished difference Result 23252 states and 31992 transitions. [2021-11-07 14:13:36,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 14:13:36,892 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 2 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 123 [2021-11-07 14:13:36,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:13:36,956 INFO L225 Difference]: With dead ends: 23252 [2021-11-07 14:13:36,957 INFO L226 Difference]: Without dead ends: 15520 [2021-11-07 14:13:36,987 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.44ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:13:36,991 INFO L933 BasicCegarLoop]: 10847 mSDtfsCounter, 10551 mSDsluCounter, 10558 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 61.50ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10551 SdHoareTripleChecker+Valid, 21405 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 37.50ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 68.38ms IncrementalHoareTripleChecker+Time [2021-11-07 14:13:36,992 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10551 Valid, 21405 Invalid, 27 Unknown, 0 Unchecked, 37.50ms Time], IncrementalHoareTripleChecker [4 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 68.38ms Time] [2021-11-07 14:13:37,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15520 states. [2021-11-07 14:13:37,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15520 to 15512. [2021-11-07 14:13:37,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15512 states, 15141 states have (on average 1.3574400634040025) internal successors, (20553), 15151 states have internal predecessors, (20553), 336 states have call successors, (336), 30 states have call predecessors, (336), 30 states have return successors, (340), 332 states have call predecessors, (340), 336 states have call successors, (340) [2021-11-07 14:13:37,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15512 states to 15512 states and 21229 transitions. [2021-11-07 14:13:37,379 INFO L78 Accepts]: Start accepts. Automaton has 15512 states and 21229 transitions. Word has length 123 [2021-11-07 14:13:37,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:13:37,381 INFO L470 AbstractCegarLoop]: Abstraction has 15512 states and 21229 transitions. [2021-11-07 14:13:37,382 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 2 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:13:37,382 INFO L276 IsEmpty]: Start isEmpty. Operand 15512 states and 21229 transitions. [2021-11-07 14:13:37,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-11-07 14:13:37,385 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:13:37,386 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] [2021-11-07 14:13:37,386 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 14:13:37,386 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)] === [2021-11-07 14:13:37,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:13:37,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1988831704, now seen corresponding path program 1 times [2021-11-07 14:13:37,387 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:13:37,387 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500909812] [2021-11-07 14:13:37,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:13:37,387 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:13:37,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:13:37,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 14:13:37,663 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:13:37,663 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500909812] [2021-11-07 14:13:37,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500909812] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:13:37,663 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:13:37,663 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 14:13:37,663 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957359198] [2021-11-07 14:13:37,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:13:37,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 14:13:37,665 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:13:37,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 14:13:37,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:13:37,666 INFO L87 Difference]: Start difference. First operand 15512 states and 21229 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:13:38,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:13:38,577 INFO L93 Difference]: Finished difference Result 46025 states and 63734 transitions. [2021-11-07 14:13:38,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 14:13:38,577 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 [2021-11-07 14:13:38,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:13:38,709 INFO L225 Difference]: With dead ends: 46025 [2021-11-07 14:13:38,710 INFO L226 Difference]: Without dead ends: 30617 [2021-11-07 14:13:38,756 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.09ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:13:38,758 INFO L933 BasicCegarLoop]: 11108 mSDtfsCounter, 10652 mSDsluCounter, 10705 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 99.09ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10652 SdHoareTripleChecker+Valid, 21813 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 37.27ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 116.18ms IncrementalHoareTripleChecker+Time [2021-11-07 14:13:38,760 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10652 Valid, 21813 Invalid, 27 Unknown, 0 Unchecked, 37.27ms Time], IncrementalHoareTripleChecker [5 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 116.18ms Time] [2021-11-07 14:13:38,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30617 states. [2021-11-07 14:13:39,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30617 to 30570. [2021-11-07 14:13:39,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30570 states, 29841 states have (on average 1.3594048456821153) internal successors, (40566), 29855 states have internal predecessors, (40566), 664 states have call successors, (664), 60 states have call predecessors, (664), 60 states have return successors, (1344), 658 states have call predecessors, (1344), 664 states have call successors, (1344) [2021-11-07 14:13:39,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30570 states to 30570 states and 42574 transitions. [2021-11-07 14:13:39,538 INFO L78 Accepts]: Start accepts. Automaton has 30570 states and 42574 transitions. Word has length 134 [2021-11-07 14:13:39,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:13:39,539 INFO L470 AbstractCegarLoop]: Abstraction has 30570 states and 42574 transitions. [2021-11-07 14:13:39,539 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) [2021-11-07 14:13:39,540 INFO L276 IsEmpty]: Start isEmpty. Operand 30570 states and 42574 transitions. [2021-11-07 14:13:39,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-11-07 14:13:39,542 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:13:39,542 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 14:13:39,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 14:13:39,543 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)] === [2021-11-07 14:13:39,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:13:39,544 INFO L85 PathProgramCache]: Analyzing trace with hash -2091362701, now seen corresponding path program 1 times [2021-11-07 14:13:39,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:13:39,544 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973601338] [2021-11-07 14:13:39,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:13:39,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:13:39,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:13:39,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 14:13:39,809 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:13:39,809 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973601338] [2021-11-07 14:13:39,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973601338] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:13:39,809 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:13:39,810 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 14:13:39,810 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491925961] [2021-11-07 14:13:39,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:13:39,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 14:13:39,811 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:13:39,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 14:13:39,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:13:39,811 INFO L87 Difference]: Start difference. First operand 30570 states and 42574 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:13:40,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:13:40,745 INFO L93 Difference]: Finished difference Result 60672 states and 84509 transitions. [2021-11-07 14:13:40,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 14:13:40,746 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 136 [2021-11-07 14:13:40,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:13:40,843 INFO L225 Difference]: With dead ends: 60672 [2021-11-07 14:13:40,843 INFO L226 Difference]: Without dead ends: 30206 [2021-11-07 14:13:40,912 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.25ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:13:40,914 INFO L933 BasicCegarLoop]: 10554 mSDtfsCounter, 10549 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10549 SdHoareTripleChecker+Valid, 10554 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.16ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.82ms IncrementalHoareTripleChecker+Time [2021-11-07 14:13:40,915 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10549 Valid, 10554 Invalid, 2 Unknown, 0 Unchecked, 17.16ms Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 47.82ms Time] [2021-11-07 14:13:40,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30206 states. [2021-11-07 14:13:41,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30206 to 30206. [2021-11-07 14:13:41,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30206 states, 29485 states have (on average 1.3587247753094793) internal successors, (40062), 29499 states have internal predecessors, (40062), 656 states have call successors, (656), 60 states have call predecessors, (656), 60 states have return successors, (1328), 650 states have call predecessors, (1328), 656 states have call successors, (1328) [2021-11-07 14:13:42,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30206 states to 30206 states and 42046 transitions. [2021-11-07 14:13:42,021 INFO L78 Accepts]: Start accepts. Automaton has 30206 states and 42046 transitions. Word has length 136 [2021-11-07 14:13:42,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:13:42,022 INFO L470 AbstractCegarLoop]: Abstraction has 30206 states and 42046 transitions. [2021-11-07 14:13:42,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:13:42,023 INFO L276 IsEmpty]: Start isEmpty. Operand 30206 states and 42046 transitions. [2021-11-07 14:13:42,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-11-07 14:13:42,026 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:13:42,026 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] [2021-11-07 14:13:42,026 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 14:13:42,026 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)] === [2021-11-07 14:13:42,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:13:42,027 INFO L85 PathProgramCache]: Analyzing trace with hash -995424755, now seen corresponding path program 1 times [2021-11-07 14:13:42,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:13:42,030 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433605205] [2021-11-07 14:13:42,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:13:42,030 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:13:42,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:13:42,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 14:13:42,302 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:13:42,302 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433605205] [2021-11-07 14:13:42,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433605205] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:13:42,303 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:13:42,303 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 14:13:42,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608788895] [2021-11-07 14:13:42,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:13:42,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 14:13:42,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:13:42,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 14:13:42,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:13:42,305 INFO L87 Difference]: Start difference. First operand 30206 states and 42046 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:13:42,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:13:42,943 INFO L93 Difference]: Finished difference Result 58646 states and 81753 transitions. [2021-11-07 14:13:42,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 14:13:42,944 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 [2021-11-07 14:13:42,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:13:43,056 INFO L225 Difference]: With dead ends: 58646 [2021-11-07 14:13:43,057 INFO L226 Difference]: Without dead ends: 28544 [2021-11-07 14:13:43,137 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.01ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:13:43,138 INFO L933 BasicCegarLoop]: 10013 mSDtfsCounter, 10003 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.83ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10003 SdHoareTripleChecker+Valid, 10013 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.61ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51.68ms IncrementalHoareTripleChecker+Time [2021-11-07 14:13:43,139 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10003 Valid, 10013 Invalid, 2 Unknown, 0 Unchecked, 12.61ms Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 51.68ms Time] [2021-11-07 14:13:43,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28544 states. [2021-11-07 14:13:44,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28544 to 28544. [2021-11-07 14:13:44,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28544 states, 27897 states have (on average 1.3636591748216653) internal successors, (38042), 27909 states have internal predecessors, (38042), 592 states have call successors, (592), 52 states have call predecessors, (592), 52 states have return successors, (1184), 586 states have call predecessors, (1184), 592 states have call successors, (1184) [2021-11-07 14:13:44,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28544 states to 28544 states and 39818 transitions. [2021-11-07 14:13:44,195 INFO L78 Accepts]: Start accepts. Automaton has 28544 states and 39818 transitions. Word has length 142 [2021-11-07 14:13:44,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:13:44,197 INFO L470 AbstractCegarLoop]: Abstraction has 28544 states and 39818 transitions. [2021-11-07 14:13:44,197 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) [2021-11-07 14:13:44,197 INFO L276 IsEmpty]: Start isEmpty. Operand 28544 states and 39818 transitions. [2021-11-07 14:13:44,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-11-07 14:13:44,198 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:13:44,198 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] [2021-11-07 14:13:44,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 14:13:44,199 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)] === [2021-11-07 14:13:44,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:13:44,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1609332516, now seen corresponding path program 1 times [2021-11-07 14:13:44,200 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:13:44,201 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542733537] [2021-11-07 14:13:44,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:13:44,202 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:13:44,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:13:44,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 14:13:44,543 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:13:44,543 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542733537] [2021-11-07 14:13:44,544 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542733537] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:13:44,544 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:13:44,544 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 14:13:44,544 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43389590] [2021-11-07 14:13:44,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:13:44,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 14:13:44,545 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:13:44,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 14:13:44,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:13:44,546 INFO L87 Difference]: Start difference. First operand 28544 states and 39818 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:13:45,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:13:45,525 INFO L93 Difference]: Finished difference Result 85368 states and 119136 transitions. [2021-11-07 14:13:45,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 14:13:45,526 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 [2021-11-07 14:13:45,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:13:45,714 INFO L225 Difference]: With dead ends: 85368 [2021-11-07 14:13:45,714 INFO L226 Difference]: Without dead ends: 56928 [2021-11-07 14:13:45,813 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.22ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:13:45,814 INFO L933 BasicCegarLoop]: 19791 mSDtfsCounter, 9983 mSDsluCounter, 9890 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 60.32ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9983 SdHoareTripleChecker+Valid, 29681 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 28.13ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 70.30ms IncrementalHoareTripleChecker+Time [2021-11-07 14:13:45,814 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9983 Valid, 29681 Invalid, 11 Unknown, 0 Unchecked, 28.13ms Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 70.30ms Time] [2021-11-07 14:13:45,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56928 states. [2021-11-07 14:13:47,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56928 to 56906. [2021-11-07 14:13:47,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56906 states, 55623 states have (on average 1.364201858943243) internal successors, (75881), 55645 states have internal predecessors, (75881), 1176 states have call successors, (1176), 104 states have call predecessors, (1176), 104 states have return successors, (2352), 1164 states have call predecessors, (2352), 1176 states have call successors, (2352) [2021-11-07 14:13:48,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56906 states to 56906 states and 79409 transitions. [2021-11-07 14:13:48,048 INFO L78 Accepts]: Start accepts. Automaton has 56906 states and 79409 transitions. Word has length 148 [2021-11-07 14:13:48,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:13:48,049 INFO L470 AbstractCegarLoop]: Abstraction has 56906 states and 79409 transitions. [2021-11-07 14:13:48,049 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) [2021-11-07 14:13:48,049 INFO L276 IsEmpty]: Start isEmpty. Operand 56906 states and 79409 transitions. [2021-11-07 14:13:48,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2021-11-07 14:13:48,051 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:13:48,052 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 14:13:48,052 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 14:13:48,052 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)] === [2021-11-07 14:13:48,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:13:48,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1173068197, now seen corresponding path program 1 times [2021-11-07 14:13:48,053 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:13:48,053 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761461939] [2021-11-07 14:13:48,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:13:48,053 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:13:48,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:13:48,277 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 14:13:48,278 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:13:48,278 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761461939] [2021-11-07 14:13:48,278 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761461939] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:13:48,278 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:13:48,278 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 14:13:48,278 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623874266] [2021-11-07 14:13:48,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:13:48,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 14:13:48,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:13:48,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 14:13:48,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:13:48,280 INFO L87 Difference]: Start difference. First operand 56906 states and 79409 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 1 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:13:50,328 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:13:52,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:13:52,617 INFO L93 Difference]: Finished difference Result 142116 states and 198358 transitions. [2021-11-07 14:13:52,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 14:13:52,617 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 1 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 170 [2021-11-07 14:13:52,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:13:52,918 INFO L225 Difference]: With dead ends: 142116 [2021-11-07 14:13:52,918 INFO L226 Difference]: Without dead ends: 85314 [2021-11-07 14:13:53,095 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.39ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:13:53,096 INFO L933 BasicCegarLoop]: 19768 mSDtfsCounter, 9877 mSDsluCounter, 9997 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2071.41ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9877 SdHoareTripleChecker+Valid, 29765 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 22.54ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2213.67ms IncrementalHoareTripleChecker+Time [2021-11-07 14:13:53,096 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9877 Valid, 29765 Invalid, 15 Unknown, 0 Unchecked, 22.54ms Time], IncrementalHoareTripleChecker [4 Valid, 10 Invalid, 1 Unknown, 0 Unchecked, 2213.67ms Time] [2021-11-07 14:13:53,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85314 states. [2021-11-07 14:13:55,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85314 to 85292. [2021-11-07 14:13:55,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85292 states, 83373 states have (on average 1.3643745577105297) internal successors, (113752), 83405 states have internal predecessors, (113752), 1760 states have call successors, (1760), 156 states have call predecessors, (1760), 156 states have return successors, (3520), 1742 states have call predecessors, (3520), 1760 states have call successors, (3520) [2021-11-07 14:13:55,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85292 states to 85292 states and 119032 transitions. [2021-11-07 14:13:55,403 INFO L78 Accepts]: Start accepts. Automaton has 85292 states and 119032 transitions. Word has length 170 [2021-11-07 14:13:55,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:13:55,403 INFO L470 AbstractCegarLoop]: Abstraction has 85292 states and 119032 transitions. [2021-11-07 14:13:55,404 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 1 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:13:55,404 INFO L276 IsEmpty]: Start isEmpty. Operand 85292 states and 119032 transitions. [2021-11-07 14:13:55,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2021-11-07 14:13:55,406 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:13:55,651 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 14:13:55,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-07 14:13:55,652 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)] === [2021-11-07 14:13:55,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:13:55,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1143899565, now seen corresponding path program 1 times [2021-11-07 14:13:55,652 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:13:55,652 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595839090] [2021-11-07 14:13:55,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:13:55,652 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:13:55,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:13:56,397 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-07 14:13:56,398 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:13:56,398 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595839090] [2021-11-07 14:13:56,398 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595839090] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:13:56,398 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:13:56,398 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-07 14:13:56,398 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860189142] [2021-11-07 14:13:56,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:13:56,398 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 14:13:56,398 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:13:56,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 14:13:56,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-07 14:13:56,399 INFO L87 Difference]: Start difference. First operand 85292 states and 119032 transitions. Second operand has 7 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 4 states have call successors, (5), 5 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:14:00,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:14:00,720 INFO L93 Difference]: Finished difference Result 170294 states and 242505 transitions. [2021-11-07 14:14:00,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 14:14:00,721 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 4 states have call successors, (5), 5 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 179 [2021-11-07 14:14:00,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:14:01,016 INFO L225 Difference]: With dead ends: 170294 [2021-11-07 14:14:01,016 INFO L226 Difference]: Without dead ends: 85106 [2021-11-07 14:14:01,434 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 95.30ms TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-07 14:14:01,434 INFO L933 BasicCegarLoop]: 9998 mSDtfsCounter, 26 mSDsluCounter, 49857 mSDsCounter, 0 mSdLazyCounter, 954 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1840.84ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 59855 SdHoareTripleChecker+Invalid, 971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 49.90ms SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1984.35ms IncrementalHoareTripleChecker+Time [2021-11-07 14:14:01,437 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 59855 Invalid, 971 Unknown, 0 Unchecked, 49.90ms Time], IncrementalHoareTripleChecker [17 Valid, 954 Invalid, 0 Unknown, 0 Unchecked, 1984.35ms Time] [2021-11-07 14:14:01,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85106 states. [2021-11-07 14:14:03,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85106 to 85052. [2021-11-07 14:14:03,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85052 states, 83115 states have (on average 1.3646393551103893) internal successors, (113422), 83153 states have internal predecessors, (113422), 1754 states have call successors, (1754), 180 states have call predecessors, (1754), 180 states have return successors, (4802), 1730 states have call predecessors, (4802), 1754 states have call successors, (4802) [2021-11-07 14:14:03,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85052 states to 85052 states and 119978 transitions. [2021-11-07 14:14:03,874 INFO L78 Accepts]: Start accepts. Automaton has 85052 states and 119978 transitions. Word has length 179 [2021-11-07 14:14:03,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:14:03,875 INFO L470 AbstractCegarLoop]: Abstraction has 85052 states and 119978 transitions. [2021-11-07 14:14:03,875 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 4 states have call successors, (5), 5 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:14:03,878 INFO L276 IsEmpty]: Start isEmpty. Operand 85052 states and 119978 transitions. [2021-11-07 14:14:03,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2021-11-07 14:14:03,882 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:14:03,882 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 14:14:03,882 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-07 14:14:03,882 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)] === [2021-11-07 14:14:03,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:14:03,883 INFO L85 PathProgramCache]: Analyzing trace with hash 59208050, now seen corresponding path program 1 times [2021-11-07 14:14:03,883 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:14:03,883 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828810755] [2021-11-07 14:14:03,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:14:03,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:14:04,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:14:04,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-11-07 14:14:04,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:14:04,253 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-07 14:14:04,253 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:14:04,253 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828810755] [2021-11-07 14:14:04,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828810755] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:14:04,254 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:14:04,254 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 14:14:04,254 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132327449] [2021-11-07 14:14:04,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:14:04,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 14:14:04,255 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:14:04,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 14:14:04,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 14:14:04,256 INFO L87 Difference]: Start difference. First operand 85052 states and 119978 transitions. Second operand has 4 states, 4 states have (on average 49.25) internal successors, (197), 3 states have internal predecessors, (197), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-07 14:14:06,507 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:14:07,855 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:14:16,600 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:14:18,924 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:14:21,820 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:14:26,799 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:14:29,431 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:14:34,343 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:14:39,778 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:14:43,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:14:43,390 INFO L93 Difference]: Finished difference Result 212299 states and 302590 transitions. [2021-11-07 14:14:43,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 14:14:43,391 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 49.25) internal successors, (197), 3 states have internal predecessors, (197), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 209 [2021-11-07 14:14:43,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:14:43,916 INFO L225 Difference]: With dead ends: 212299 [2021-11-07 14:14:43,916 INFO L226 Difference]: Without dead ends: 127351 [2021-11-07 14:14:44,308 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 92.51ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 14:14:44,309 INFO L933 BasicCegarLoop]: 10648 mSDtfsCounter, 9937 mSDsluCounter, 17851 mSDsCounter, 0 mSdLazyCounter, 3109 mSolverCounterSat, 368 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34561.27ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9937 SdHoareTripleChecker+Valid, 28499 SdHoareTripleChecker+Invalid, 3485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 94.46ms SdHoareTripleChecker+Time, 368 IncrementalHoareTripleChecker+Valid, 3109 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36393.92ms IncrementalHoareTripleChecker+Time [2021-11-07 14:14:44,309 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9937 Valid, 28499 Invalid, 3485 Unknown, 0 Unchecked, 94.46ms Time], IncrementalHoareTripleChecker [368 Valid, 3109 Invalid, 8 Unknown, 0 Unchecked, 36393.92ms Time] [2021-11-07 14:14:44,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127351 states. [2021-11-07 14:14:48,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127351 to 126990. [2021-11-07 14:14:48,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126990 states, 124065 states have (on average 1.3651795429815017) internal successors, (169371), 124163 states have internal predecessors, (169371), 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) [2021-11-07 14:14:48,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126990 states to 126990 states and 181471 transitions. [2021-11-07 14:14:49,005 INFO L78 Accepts]: Start accepts. Automaton has 126990 states and 181471 transitions. Word has length 209 [2021-11-07 14:14:49,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:14:49,006 INFO L470 AbstractCegarLoop]: Abstraction has 126990 states and 181471 transitions. [2021-11-07 14:14:49,006 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.25) internal successors, (197), 3 states have internal predecessors, (197), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-07 14:14:49,006 INFO L276 IsEmpty]: Start isEmpty. Operand 126990 states and 181471 transitions. [2021-11-07 14:14:49,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-11-07 14:14:49,011 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:14:49,011 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] [2021-11-07 14:14:49,011 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-07 14:14:49,011 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)] === [2021-11-07 14:14:49,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:14:49,012 INFO L85 PathProgramCache]: Analyzing trace with hash 594450779, now seen corresponding path program 1 times [2021-11-07 14:14:49,012 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:14:49,012 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243574774] [2021-11-07 14:14:49,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:14:49,012 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:14:49,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:14:49,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-11-07 14:14:49,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:14:49,353 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-07 14:14:49,354 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:14:49,354 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243574774] [2021-11-07 14:14:49,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243574774] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:14:49,354 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:14:49,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 14:14:49,354 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749694796] [2021-11-07 14:14:49,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:14:49,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 14:14:49,355 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:14:49,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 14:14:49,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 14:14:49,356 INFO L87 Difference]: Start difference. First operand 126990 states and 181471 transitions. Second operand has 4 states, 4 states have (on average 50.25) internal successors, (201), 3 states have internal predecessors, (201), 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) [2021-11-07 14:14:51,402 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:14:54,412 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:15:02,758 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:15:05,041 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:15:08,884 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:15:11,495 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:15:14,053 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:15:15,622 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:15:18,206 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:15:21,020 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:15:22,912 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:15:26,089 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:15:31,465 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:15:33,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:15:33,188 INFO L93 Difference]: Finished difference Result 254122 states and 363933 transitions. [2021-11-07 14:15:33,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 14:15:33,188 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 50.25) internal successors, (201), 3 states have internal predecessors, (201), 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 210 [2021-11-07 14:15:33,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:15:33,611 INFO L225 Difference]: With dead ends: 254122 [2021-11-07 14:15:33,612 INFO L226 Difference]: Without dead ends: 127236 [2021-11-07 14:15:33,879 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 62.62ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 14:15:33,879 INFO L933 BasicCegarLoop]: 10078 mSDtfsCounter, 96 mSDsluCounter, 17737 mSDsCounter, 0 mSdLazyCounter, 2353 mSolverCounterSat, 159 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38198.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 27815 SdHoareTripleChecker+Invalid, 2522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 70.31ms SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 2353 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40232.51ms IncrementalHoareTripleChecker+Time [2021-11-07 14:15:33,880 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 27815 Invalid, 2522 Unknown, 0 Unchecked, 70.31ms Time], IncrementalHoareTripleChecker [159 Valid, 2353 Invalid, 10 Unknown, 0 Unchecked, 40232.51ms Time] [2021-11-07 14:15:34,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127236 states. [2021-11-07 14:15:37,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127236 to 126990. [2021-11-07 14:15:37,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126990 states, 124065 states have (on average 1.3650344577439246) internal successors, (169353), 124163 states have internal predecessors, (169353), 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) [2021-11-07 14:15:38,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126990 states to 126990 states and 181453 transitions. [2021-11-07 14:15:38,125 INFO L78 Accepts]: Start accepts. Automaton has 126990 states and 181453 transitions. Word has length 210 [2021-11-07 14:15:38,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:15:38,126 INFO L470 AbstractCegarLoop]: Abstraction has 126990 states and 181453 transitions. [2021-11-07 14:15:38,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.25) internal successors, (201), 3 states have internal predecessors, (201), 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) [2021-11-07 14:15:38,126 INFO L276 IsEmpty]: Start isEmpty. Operand 126990 states and 181453 transitions. [2021-11-07 14:15:38,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2021-11-07 14:15:38,130 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:15:38,131 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] [2021-11-07 14:15:38,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-07 14:15:38,131 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)] === [2021-11-07 14:15:38,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:15:38,131 INFO L85 PathProgramCache]: Analyzing trace with hash -2081819978, now seen corresponding path program 1 times [2021-11-07 14:15:38,131 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:15:38,132 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661035505] [2021-11-07 14:15:38,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:15:38,132 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:15:38,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:15:38,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-11-07 14:15:38,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:15:38,698 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-07 14:15:38,698 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:15:38,698 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661035505] [2021-11-07 14:15:38,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661035505] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:15:38,698 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:15:38,698 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 14:15:38,698 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648828671] [2021-11-07 14:15:38,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:15:38,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 14:15:38,699 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:15:38,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 14:15:38,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-07 14:15:38,699 INFO L87 Difference]: Start difference. First operand 126990 states and 181453 transitions. Second operand has 8 states, 8 states have (on average 25.5) internal successors, (204), 7 states have internal predecessors, (204), 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) [2021-11-07 14:15:40,744 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:15:50,082 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:15:52,307 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:15:56,028 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:16:00,824 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:16:03,669 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:16:08,165 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:16:13,168 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:16:15,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:16:15,007 INFO L93 Difference]: Finished difference Result 254242 states and 369659 transitions. [2021-11-07 14:16:15,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 14:16:15,008 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 25.5) internal successors, (204), 7 states have internal predecessors, (204), 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 212 [2021-11-07 14:16:15,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:16:15,604 INFO L225 Difference]: With dead ends: 254242 [2021-11-07 14:16:15,604 INFO L226 Difference]: Without dead ends: 127356 [2021-11-07 14:16:15,974 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 209.06ms TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-11-07 14:16:15,975 INFO L933 BasicCegarLoop]: 10072 mSDtfsCounter, 116 mSDsluCounter, 58004 mSDsCounter, 0 mSdLazyCounter, 2621 mSolverCounterSat, 154 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30742.12ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 68076 SdHoareTripleChecker+Invalid, 2783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 83.91ms SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 2621 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32586.47ms IncrementalHoareTripleChecker+Time [2021-11-07 14:16:15,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 68076 Invalid, 2783 Unknown, 0 Unchecked, 83.91ms Time], IncrementalHoareTripleChecker [154 Valid, 2621 Invalid, 8 Unknown, 0 Unchecked, 32586.47ms Time] [2021-11-07 14:16:16,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127356 states. [2021-11-07 14:16:19,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127356 to 127104. [2021-11-07 14:16:19,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127104 states, 124167 states have (on average 1.3647345913165334) internal successors, (169455), 124277 states have internal predecessors, (169455), 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) [2021-11-07 14:16:20,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127104 states to 127104 states and 181571 transitions. [2021-11-07 14:16:20,220 INFO L78 Accepts]: Start accepts. Automaton has 127104 states and 181571 transitions. Word has length 212 [2021-11-07 14:16:20,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:16:20,221 INFO L470 AbstractCegarLoop]: Abstraction has 127104 states and 181571 transitions. [2021-11-07 14:16:20,221 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 25.5) internal successors, (204), 7 states have internal predecessors, (204), 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) [2021-11-07 14:16:20,221 INFO L276 IsEmpty]: Start isEmpty. Operand 127104 states and 181571 transitions. [2021-11-07 14:16:20,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2021-11-07 14:16:20,225 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:16:20,225 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] [2021-11-07 14:16:20,225 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-07 14:16:20,225 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)] === [2021-11-07 14:16:20,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:16:20,226 INFO L85 PathProgramCache]: Analyzing trace with hash 529402782, now seen corresponding path program 1 times [2021-11-07 14:16:20,226 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:16:20,226 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005444578] [2021-11-07 14:16:20,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:16:20,226 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:16:20,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:16:20,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-11-07 14:16:20,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:16:20,767 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-07 14:16:20,768 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:16:20,768 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005444578] [2021-11-07 14:16:20,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005444578] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:16:20,768 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:16:20,768 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 14:16:20,768 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689253826] [2021-11-07 14:16:20,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:16:20,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 14:16:20,769 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:16:20,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 14:16:20,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 14:16:20,770 INFO L87 Difference]: Start difference. First operand 127104 states and 181571 transitions. Second operand has 4 states, 4 states have (on average 52.25) internal successors, (209), 3 states have internal predecessors, (209), 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) [2021-11-07 14:16:22,819 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:16:33,323 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:16:35,547 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:16:38,754 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:16:42,427 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:16:45,323 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:16:47,825 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:16:52,126 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:16:57,110 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:16:58,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:16:58,704 INFO L93 Difference]: Finished difference Result 254382 states and 364181 transitions. [2021-11-07 14:16:58,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 14:16:58,712 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 52.25) internal successors, (209), 3 states have internal predecessors, (209), 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 218 [2021-11-07 14:16:58,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:16:59,356 INFO L225 Difference]: With dead ends: 254382 [2021-11-07 14:16:59,356 INFO L226 Difference]: Without dead ends: 127350 [2021-11-07 14:16:59,619 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 80.62ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 14:16:59,619 INFO L933 BasicCegarLoop]: 10073 mSDtfsCounter, 96 mSDsluCounter, 17713 mSDsCounter, 0 mSdLazyCounter, 2377 mSolverCounterSat, 165 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32921.61ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 27786 SdHoareTripleChecker+Invalid, 2549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 61.49ms SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 2377 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34846.84ms IncrementalHoareTripleChecker+Time [2021-11-07 14:16:59,620 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 27786 Invalid, 2549 Unknown, 0 Unchecked, 61.49ms Time], IncrementalHoareTripleChecker [165 Valid, 2377 Invalid, 7 Unknown, 0 Unchecked, 34846.84ms Time] [2021-11-07 14:16:59,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127350 states. [2021-11-07 14:17:03,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127350 to 127110. [2021-11-07 14:17:03,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127110 states, 124173 states have (on average 1.3647169674566935) internal successors, (169461), 124283 states have internal predecessors, (169461), 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) [2021-11-07 14:17:03,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127110 states to 127110 states and 181577 transitions. [2021-11-07 14:17:03,799 INFO L78 Accepts]: Start accepts. Automaton has 127110 states and 181577 transitions. Word has length 218 [2021-11-07 14:17:03,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:17:03,799 INFO L470 AbstractCegarLoop]: Abstraction has 127110 states and 181577 transitions. [2021-11-07 14:17:03,799 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.25) internal successors, (209), 3 states have internal predecessors, (209), 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) [2021-11-07 14:17:03,800 INFO L276 IsEmpty]: Start isEmpty. Operand 127110 states and 181577 transitions. [2021-11-07 14:17:03,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2021-11-07 14:17:03,803 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:17:03,804 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] [2021-11-07 14:17:03,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-07 14:17:03,804 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ib_uverbs_release_fileErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 14:17:03,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:17:03,804 INFO L85 PathProgramCache]: Analyzing trace with hash -579368062, now seen corresponding path program 1 times [2021-11-07 14:17:03,805 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:17:03,805 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12050246] [2021-11-07 14:17:03,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:17:03,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:17:04,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:17:04,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-07 14:17:04,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:17:04,561 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-07 14:17:04,562 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:17:04,562 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12050246] [2021-11-07 14:17:04,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12050246] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 14:17:04,562 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [71501718] [2021-11-07 14:17:04,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:17:04,563 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 14:17:04,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 14:17:04,564 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 14:17:04,567 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-07 14:17:06,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:17:06,063 INFO L263 TraceCheckSpWp]: Trace formula consists of 4674 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-07 14:17:06,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 14:17:06,546 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-07 14:17:06,546 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 14:17:06,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [71501718] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:17:06,546 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-07 14:17:06,547 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2021-11-07 14:17:06,547 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100087981] [2021-11-07 14:17:06,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:17:06,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 14:17:06,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:17:06,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 14:17:06,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-07 14:17:06,548 INFO L87 Difference]: Start difference. First operand 127110 states and 181577 transitions. Second operand has 5 states, 5 states have (on average 44.2) internal successors, (221), 5 states have internal predecessors, (221), 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) [2021-11-07 14:17:08,596 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []