./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 173e3943 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--infiniband--core--ib_uverbs.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 9be531e7af87cba73be4f8246e93f3d32963d00e421fc44d0f45559eac1d9e7a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 15:43:32,032 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 15:43:32,060 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 15:43:32,078 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 15:43:32,078 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 15:43:32,079 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 15:43:32,080 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 15:43:32,081 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 15:43:32,082 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 15:43:32,083 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 15:43:32,083 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 15:43:32,084 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 15:43:32,084 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 15:43:32,085 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 15:43:32,086 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 15:43:32,087 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 15:43:32,087 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 15:43:32,088 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 15:43:32,089 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 15:43:32,091 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 15:43:32,092 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 15:43:32,093 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 15:43:32,093 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 15:43:32,094 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 15:43:32,096 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 15:43:32,096 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 15:43:32,096 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 15:43:32,097 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 15:43:32,097 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 15:43:32,098 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 15:43:32,098 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 15:43:32,099 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 15:43:32,099 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 15:43:32,100 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 15:43:32,100 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 15:43:32,100 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 15:43:32,101 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 15:43:32,101 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 15:43:32,101 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 15:43:32,102 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 15:43:32,102 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 15:43:32,103 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 15:43:32,116 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 15:43:32,120 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 15:43:32,120 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 15:43:32,121 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 15:43:32,122 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 15:43:32,122 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 15:43:32,122 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 15:43:32,122 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 15:43:32,122 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 15:43:32,122 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 15:43:32,123 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 15:43:32,123 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 15:43:32,123 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 15:43:32,123 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 15:43:32,124 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 15:43:32,124 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 15:43:32,124 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 15:43:32,124 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 15:43:32,124 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 15:43:32,124 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 15:43:32,124 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 15:43:32,125 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 15:43:32,125 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 15:43:32,125 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 15:43:32,125 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 15:43:32,125 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 15:43:32,125 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 15:43:32,125 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 15:43:32,126 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 15:43:32,126 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9be531e7af87cba73be4f8246e93f3d32963d00e421fc44d0f45559eac1d9e7a [2021-11-06 15:43:32,301 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 15:43:32,333 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 15:43:32,335 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 15:43:32,336 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 15:43:32,336 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 15:43:32,337 INFO L432 ainManager$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 [2021-11-06 15:43:32,388 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/108874789/f39fa411172c448eac3bc3326e64e1a0/FLAGcca3a97ab [2021-11-06 15:43:33,069 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 15:43:33,069 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 [2021-11-06 15:43:33,108 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/108874789/f39fa411172c448eac3bc3326e64e1a0/FLAGcca3a97ab [2021-11-06 15:43:33,187 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/108874789/f39fa411172c448eac3bc3326e64e1a0 [2021-11-06 15:43:33,189 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 15:43:33,190 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 15:43:33,191 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 15:43:33,191 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 15:43:33,197 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 15:43:33,198 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 03:43:33" (1/1) ... [2021-11-06 15:43:33,198 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46ca147b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:43:33, skipping insertion in model container [2021-11-06 15:43:33,199 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 03:43:33" (1/1) ... [2021-11-06 15:43:33,203 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 15:43:33,290 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 15:43:35,301 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] [2021-11-06 15:43:35,347 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 15:43:35,399 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 15:43:35,697 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] [2021-11-06 15:43:35,702 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 15:43:35,797 INFO L208 MainTranslator]: Completed translation [2021-11-06 15:43:35,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:43:35 WrapperNode [2021-11-06 15:43:35,797 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 15:43:35,799 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 15:43:35,799 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 15:43:35,799 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 15:43:35,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:43:35" (1/1) ... [2021-11-06 15:43:35,894 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:43:35" (1/1) ... [2021-11-06 15:43:36,929 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 15:43:36,931 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 15:43:36,931 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 15:43:36,931 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 15:43:36,957 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:43:35" (1/1) ... [2021-11-06 15:43:36,957 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:43:35" (1/1) ... [2021-11-06 15:43:37,160 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:43:35" (1/1) ... [2021-11-06 15:43:37,161 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:43:35" (1/1) ... [2021-11-06 15:43:37,897 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:43:35" (1/1) ... [2021-11-06 15:43:38,007 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:43:35" (1/1) ... [2021-11-06 15:43:38,068 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:43:35" (1/1) ... [2021-11-06 15:43:38,192 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 15:43:38,193 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 15:43:38,193 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 15:43:38,193 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 15:43:38,194 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:43:35" (1/1) ... [2021-11-06 15:43:38,199 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 15:43:38,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 15:43:38,214 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) [2021-11-06 15:43:38,231 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 [2021-11-06 15:43:38,248 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-11-06 15:43:38,248 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-11-06 15:43:38,249 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-06 15:43:38,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-06 15:43:38,249 INFO L130 BoogieDeclarations]: Found specification of procedure ib_uverbs_release_file [2021-11-06 15:43:38,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_uverbs_release_file [2021-11-06 15:43:38,249 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2021-11-06 15:43:38,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2021-11-06 15:43:38,249 INFO L130 BoogieDeclarations]: Found specification of procedure ib_uverbs_modify_srq [2021-11-06 15:43:38,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_uverbs_modify_srq [2021-11-06 15:43:38,250 INFO L130 BoogieDeclarations]: Found specification of procedure ib_uverbs_ex_query_device [2021-11-06 15:43:38,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_uverbs_ex_query_device [2021-11-06 15:43:38,250 INFO L130 BoogieDeclarations]: Found specification of procedure ib_uverbs_mmap [2021-11-06 15:43:38,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_uverbs_mmap [2021-11-06 15:43:38,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 15:43:38,250 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-06 15:43:38,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 15:43:38,250 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-11-06 15:43:38,250 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2021-11-06 15:43:38,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2021-11-06 15:43:38,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 15:43:38,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 15:43:38,251 INFO L130 BoogieDeclarations]: Found specification of procedure ib_uverbs_write [2021-11-06 15:43:38,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_uverbs_write [2021-11-06 15:43:38,251 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-06 15:43:38,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 15:43:38,251 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 15:43:38,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 15:43:38,252 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-11-06 15:43:38,252 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-11-06 15:43:38,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 15:43:38,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 15:43:38,252 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-06 15:43:38,252 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-06 15:43:38,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-06 15:43:38,252 INFO L130 BoogieDeclarations]: Found specification of procedure ib_uverbs_remove_one [2021-11-06 15:43:38,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_uverbs_remove_one [2021-11-06 15:43:38,253 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~TO~int [2021-11-06 15:43:38,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~TO~int [2021-11-06 15:43:38,253 INFO L130 BoogieDeclarations]: Found specification of procedure ib_uverbs_add_one [2021-11-06 15:43:38,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_uverbs_add_one [2021-11-06 15:43:38,253 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-06 15:43:38,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-06 15:43:38,253 INFO L130 BoogieDeclarations]: Found specification of procedure ib_uverbs_modify_qp [2021-11-06 15:43:38,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_uverbs_modify_qp [2021-11-06 15:43:38,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 15:43:38,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 15:43:38,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 15:44:20,937 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 15:44:20,938 INFO L299 CfgBuilder]: Removed 9079 assume(true) statements. [2021-11-06 15:44:20,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 03:44:20 BoogieIcfgContainer [2021-11-06 15:44:20,944 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 15:44:20,945 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 15:44:20,946 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 15:44:20,948 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 15:44:20,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 03:43:33" (1/3) ... [2021-11-06 15:44:20,949 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@662e1b0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 03:44:20, skipping insertion in model container [2021-11-06 15:44:20,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:43:35" (2/3) ... [2021-11-06 15:44:20,949 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@662e1b0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 03:44:20, skipping insertion in model container [2021-11-06 15:44:20,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 03:44:20" (3/3) ... [2021-11-06 15:44:20,950 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--infiniband--core--ib_uverbs.ko-entry_point.cil.out.i [2021-11-06 15:44:20,954 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 15:44:20,954 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-11-06 15:44:21,001 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 15:44:21,004 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 [2021-11-06 15:44:21,005 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-06 15:44:21,084 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) [2021-11-06 15:44:21,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-06 15:44:21,101 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:44:21,102 INFO L513 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] [2021-11-06 15:44:21,102 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)] === [2021-11-06 15:44:21,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:44:21,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1001547020, now seen corresponding path program 1 times [2021-11-06 15:44:21,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:44:21,111 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214869932] [2021-11-06 15:44:21,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:44:21,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:44:21,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:44:21,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 15:44:21,635 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:44:21,635 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214869932] [2021-11-06 15:44:21,635 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214869932] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 15:44:21,636 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 15:44:21,637 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 15:44:21,638 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215888089] [2021-11-06 15:44:21,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-06 15:44:21,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 15:44:21,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-06 15:44:21,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-06 15:44:21,666 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) [2021-11-06 15:44:21,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 15:44:21,895 INFO L93 Difference]: Finished difference Result 15666 states and 21951 transitions. [2021-11-06 15:44:21,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-06 15:44:21,896 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 [2021-11-06 15:44:21,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 15:44:21,943 INFO L225 Difference]: With dead ends: 15666 [2021-11-06 15:44:21,943 INFO L226 Difference]: Without dead ends: 7822 [2021-11-06 15:44:21,979 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-06 15:44:22,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7822 states. [2021-11-06 15:44:22,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7822 to 7822. [2021-11-06 15:44:22,190 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) [2021-11-06 15:44:22,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7822 states to 7822 states and 10685 transitions. [2021-11-06 15:44:22,216 INFO L78 Accepts]: Start accepts. Automaton has 7822 states and 10685 transitions. Word has length 123 [2021-11-06 15:44:22,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 15:44:22,217 INFO L470 AbstractCegarLoop]: Abstraction has 7822 states and 10685 transitions. [2021-11-06 15:44:22,217 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) [2021-11-06 15:44:22,217 INFO L276 IsEmpty]: Start isEmpty. Operand 7822 states and 10685 transitions. [2021-11-06 15:44:22,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-06 15:44:22,220 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:44:22,221 INFO L513 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] [2021-11-06 15:44:22,221 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 15:44:22,221 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)] === [2021-11-06 15:44:22,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:44:22,223 INFO L85 PathProgramCache]: Analyzing trace with hash -1568801746, now seen corresponding path program 1 times [2021-11-06 15:44:22,223 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:44:22,224 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623305373] [2021-11-06 15:44:22,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:44:22,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:44:22,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:44:22,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 15:44:22,643 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:44:22,644 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623305373] [2021-11-06 15:44:22,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623305373] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 15:44:22,645 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 15:44:22,645 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 15:44:22,646 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562443008] [2021-11-06 15:44:22,647 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 15:44:22,647 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 15:44:22,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 15:44:22,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 15:44:22,648 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) [2021-11-06 15:44:22,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 15:44:22,979 INFO L93 Difference]: Finished difference Result 23252 states and 31992 transitions. [2021-11-06 15:44:22,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 15:44:22,980 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 [2021-11-06 15:44:22,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 15:44:23,036 INFO L225 Difference]: With dead ends: 23252 [2021-11-06 15:44:23,037 INFO L226 Difference]: Without dead ends: 15520 [2021-11-06 15:44:23,069 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 15:44:23,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15520 states. [2021-11-06 15:44:23,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15520 to 15512. [2021-11-06 15:44:23,652 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) [2021-11-06 15:44:23,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15512 states to 15512 states and 21229 transitions. [2021-11-06 15:44:23,690 INFO L78 Accepts]: Start accepts. Automaton has 15512 states and 21229 transitions. Word has length 123 [2021-11-06 15:44:23,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 15:44:23,692 INFO L470 AbstractCegarLoop]: Abstraction has 15512 states and 21229 transitions. [2021-11-06 15:44:23,693 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) [2021-11-06 15:44:23,693 INFO L276 IsEmpty]: Start isEmpty. Operand 15512 states and 21229 transitions. [2021-11-06 15:44:23,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-11-06 15:44:23,699 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:44:23,699 INFO L513 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] [2021-11-06 15:44:23,700 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 15:44:23,700 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)] === [2021-11-06 15:44:23,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:44:23,700 INFO L85 PathProgramCache]: Analyzing trace with hash -1988831704, now seen corresponding path program 1 times [2021-11-06 15:44:23,700 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:44:23,701 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178555371] [2021-11-06 15:44:23,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:44:23,701 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:44:23,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:44:23,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 15:44:23,926 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:44:23,927 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178555371] [2021-11-06 15:44:23,927 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178555371] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 15:44:23,927 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 15:44:23,927 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 15:44:23,927 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426980147] [2021-11-06 15:44:23,928 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 15:44:23,928 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 15:44:23,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 15:44:23,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 15:44:23,929 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) [2021-11-06 15:44:24,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 15:44:24,438 INFO L93 Difference]: Finished difference Result 46025 states and 63734 transitions. [2021-11-06 15:44:24,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 15:44:24,438 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 [2021-11-06 15:44:24,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 15:44:24,526 INFO L225 Difference]: With dead ends: 46025 [2021-11-06 15:44:24,526 INFO L226 Difference]: Without dead ends: 30617 [2021-11-06 15:44:24,574 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 15:44:24,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30617 states. [2021-11-06 15:44:25,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30617 to 30570. [2021-11-06 15:44:25,423 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) [2021-11-06 15:44:25,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30570 states to 30570 states and 42574 transitions. [2021-11-06 15:44:25,519 INFO L78 Accepts]: Start accepts. Automaton has 30570 states and 42574 transitions. Word has length 134 [2021-11-06 15:44:25,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 15:44:25,520 INFO L470 AbstractCegarLoop]: Abstraction has 30570 states and 42574 transitions. [2021-11-06 15:44:25,520 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) [2021-11-06 15:44:25,521 INFO L276 IsEmpty]: Start isEmpty. Operand 30570 states and 42574 transitions. [2021-11-06 15:44:25,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-11-06 15:44:25,523 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:44:25,523 INFO L513 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] [2021-11-06 15:44:25,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 15:44:25,523 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)] === [2021-11-06 15:44:25,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:44:25,525 INFO L85 PathProgramCache]: Analyzing trace with hash -2091362701, now seen corresponding path program 1 times [2021-11-06 15:44:25,525 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:44:25,525 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931796120] [2021-11-06 15:44:25,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:44:25,525 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:44:25,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:44:25,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 15:44:25,846 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:44:25,846 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931796120] [2021-11-06 15:44:25,846 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931796120] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 15:44:25,846 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 15:44:25,846 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 15:44:25,849 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50180896] [2021-11-06 15:44:25,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 15:44:25,849 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 15:44:25,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 15:44:25,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 15:44:25,850 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) [2021-11-06 15:44:26,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 15:44:26,460 INFO L93 Difference]: Finished difference Result 60672 states and 84509 transitions. [2021-11-06 15:44:26,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 15:44:26,460 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 [2021-11-06 15:44:26,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 15:44:26,549 INFO L225 Difference]: With dead ends: 60672 [2021-11-06 15:44:26,549 INFO L226 Difference]: Without dead ends: 30206 [2021-11-06 15:44:26,625 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 15:44:26,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30206 states. [2021-11-06 15:44:27,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30206 to 30206. [2021-11-06 15:44:27,351 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) [2021-11-06 15:44:27,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30206 states to 30206 states and 42046 transitions. [2021-11-06 15:44:27,428 INFO L78 Accepts]: Start accepts. Automaton has 30206 states and 42046 transitions. Word has length 136 [2021-11-06 15:44:27,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 15:44:27,430 INFO L470 AbstractCegarLoop]: Abstraction has 30206 states and 42046 transitions. [2021-11-06 15:44:27,430 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) [2021-11-06 15:44:27,430 INFO L276 IsEmpty]: Start isEmpty. Operand 30206 states and 42046 transitions. [2021-11-06 15:44:27,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-11-06 15:44:27,432 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:44:27,432 INFO L513 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] [2021-11-06 15:44:27,433 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-06 15:44:27,433 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)] === [2021-11-06 15:44:27,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:44:27,433 INFO L85 PathProgramCache]: Analyzing trace with hash -995424755, now seen corresponding path program 1 times [2021-11-06 15:44:27,433 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:44:27,434 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328145621] [2021-11-06 15:44:27,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:44:27,434 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:44:27,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:44:27,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 15:44:27,774 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:44:27,774 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328145621] [2021-11-06 15:44:27,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328145621] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 15:44:27,774 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 15:44:27,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 15:44:27,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033962210] [2021-11-06 15:44:27,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 15:44:27,778 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 15:44:27,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 15:44:27,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 15:44:27,779 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) [2021-11-06 15:44:28,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 15:44:28,324 INFO L93 Difference]: Finished difference Result 58646 states and 81753 transitions. [2021-11-06 15:44:28,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 15:44:28,325 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 [2021-11-06 15:44:28,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 15:44:28,409 INFO L225 Difference]: With dead ends: 58646 [2021-11-06 15:44:28,409 INFO L226 Difference]: Without dead ends: 28544 [2021-11-06 15:44:28,476 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 15:44:28,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28544 states. [2021-11-06 15:44:29,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28544 to 28544. [2021-11-06 15:44:29,193 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) [2021-11-06 15:44:29,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28544 states to 28544 states and 39818 transitions. [2021-11-06 15:44:29,268 INFO L78 Accepts]: Start accepts. Automaton has 28544 states and 39818 transitions. Word has length 142 [2021-11-06 15:44:29,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 15:44:29,268 INFO L470 AbstractCegarLoop]: Abstraction has 28544 states and 39818 transitions. [2021-11-06 15:44:29,269 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) [2021-11-06 15:44:29,269 INFO L276 IsEmpty]: Start isEmpty. Operand 28544 states and 39818 transitions. [2021-11-06 15:44:29,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-11-06 15:44:29,270 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:44:29,270 INFO L513 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] [2021-11-06 15:44:29,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-06 15:44:29,271 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)] === [2021-11-06 15:44:29,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:44:29,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1609332516, now seen corresponding path program 1 times [2021-11-06 15:44:29,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:44:29,271 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765105065] [2021-11-06 15:44:29,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:44:29,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:44:29,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:44:29,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 15:44:29,462 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:44:29,462 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765105065] [2021-11-06 15:44:29,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765105065] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 15:44:29,462 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 15:44:29,462 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 15:44:29,462 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414882248] [2021-11-06 15:44:29,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 15:44:29,463 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 15:44:29,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 15:44:29,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 15:44:29,464 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) [2021-11-06 15:44:30,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 15:44:30,605 INFO L93 Difference]: Finished difference Result 85368 states and 119136 transitions. [2021-11-06 15:44:30,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 15:44:30,606 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 [2021-11-06 15:44:30,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 15:44:30,761 INFO L225 Difference]: With dead ends: 85368 [2021-11-06 15:44:30,761 INFO L226 Difference]: Without dead ends: 56928 [2021-11-06 15:44:30,823 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 15:44:30,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56928 states. [2021-11-06 15:44:32,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56928 to 56906. [2021-11-06 15:44:32,340 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) [2021-11-06 15:44:32,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56906 states to 56906 states and 79409 transitions. [2021-11-06 15:44:32,516 INFO L78 Accepts]: Start accepts. Automaton has 56906 states and 79409 transitions. Word has length 148 [2021-11-06 15:44:32,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 15:44:32,517 INFO L470 AbstractCegarLoop]: Abstraction has 56906 states and 79409 transitions. [2021-11-06 15:44:32,517 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) [2021-11-06 15:44:32,517 INFO L276 IsEmpty]: Start isEmpty. Operand 56906 states and 79409 transitions. [2021-11-06 15:44:32,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2021-11-06 15:44:32,519 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:44:32,519 INFO L513 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] [2021-11-06 15:44:32,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-06 15:44:32,519 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)] === [2021-11-06 15:44:32,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:44:32,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1173068197, now seen corresponding path program 1 times [2021-11-06 15:44:32,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:44:32,524 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592023228] [2021-11-06 15:44:32,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:44:32,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:44:32,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:44:32,978 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 15:44:32,979 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:44:32,979 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592023228] [2021-11-06 15:44:32,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592023228] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 15:44:32,979 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 15:44:32,979 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 15:44:32,979 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914980238] [2021-11-06 15:44:32,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 15:44:32,980 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 15:44:32,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 15:44:32,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 15:44:32,981 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) [2021-11-06 15:44:36,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 15:44:36,967 INFO L93 Difference]: Finished difference Result 142116 states and 198358 transitions. [2021-11-06 15:44:36,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 15:44:36,968 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 [2021-11-06 15:44:36,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 15:44:37,253 INFO L225 Difference]: With dead ends: 142116 [2021-11-06 15:44:37,254 INFO L226 Difference]: Without dead ends: 85314 [2021-11-06 15:44:37,536 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 15:44:37,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85314 states. [2021-11-06 15:44:39,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85314 to 85292. [2021-11-06 15:44:39,527 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) [2021-11-06 15:44:39,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85292 states to 85292 states and 119032 transitions. [2021-11-06 15:44:39,772 INFO L78 Accepts]: Start accepts. Automaton has 85292 states and 119032 transitions. Word has length 170 [2021-11-06 15:44:39,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 15:44:39,772 INFO L470 AbstractCegarLoop]: Abstraction has 85292 states and 119032 transitions. [2021-11-06 15:44:39,772 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) [2021-11-06 15:44:39,772 INFO L276 IsEmpty]: Start isEmpty. Operand 85292 states and 119032 transitions. [2021-11-06 15:44:39,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2021-11-06 15:44:39,774 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:44:39,774 INFO L513 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] [2021-11-06 15:44:39,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-06 15:44:39,775 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)] === [2021-11-06 15:44:39,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:44:39,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1143899565, now seen corresponding path program 1 times [2021-11-06 15:44:39,775 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:44:39,775 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178050169] [2021-11-06 15:44:39,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:44:39,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:44:39,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:44:40,535 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-06 15:44:40,535 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:44:40,535 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178050169] [2021-11-06 15:44:40,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178050169] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 15:44:40,535 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 15:44:40,535 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-06 15:44:40,536 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672362064] [2021-11-06 15:44:40,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-06 15:44:40,536 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 15:44:40,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-06 15:44:40,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-06 15:44:40,536 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) [2021-11-06 15:44:44,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 15:44:44,533 INFO L93 Difference]: Finished difference Result 170294 states and 242505 transitions. [2021-11-06 15:44:44,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-06 15:44:44,534 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 [2021-11-06 15:44:44,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 15:44:44,962 INFO L225 Difference]: With dead ends: 170294 [2021-11-06 15:44:44,962 INFO L226 Difference]: Without dead ends: 85106 [2021-11-06 15:44:45,199 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-06 15:44:45,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85106 states. [2021-11-06 15:44:47,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85106 to 85052. [2021-11-06 15:44:47,397 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) [2021-11-06 15:44:47,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85052 states to 85052 states and 119978 transitions. [2021-11-06 15:44:47,613 INFO L78 Accepts]: Start accepts. Automaton has 85052 states and 119978 transitions. Word has length 179 [2021-11-06 15:44:47,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 15:44:47,613 INFO L470 AbstractCegarLoop]: Abstraction has 85052 states and 119978 transitions. [2021-11-06 15:44:47,613 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) [2021-11-06 15:44:47,614 INFO L276 IsEmpty]: Start isEmpty. Operand 85052 states and 119978 transitions. [2021-11-06 15:44:47,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2021-11-06 15:44:47,618 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:44:47,618 INFO L513 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] [2021-11-06 15:44:47,618 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-06 15:44:47,618 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)] === [2021-11-06 15:44:47,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:44:47,619 INFO L85 PathProgramCache]: Analyzing trace with hash 59208050, now seen corresponding path program 1 times [2021-11-06 15:44:47,619 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:44:47,620 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624211713] [2021-11-06 15:44:47,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:44:47,621 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:44:47,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:44:48,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-11-06 15:44:48,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:44:48,203 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-06 15:44:48,204 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:44:48,204 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624211713] [2021-11-06 15:44:48,204 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624211713] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 15:44:48,204 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 15:44:48,204 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 15:44:48,205 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987718732] [2021-11-06 15:44:48,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 15:44:48,205 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 15:44:48,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 15:44:48,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 15:44:48,208 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) [2021-11-06 15:45:27,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 15:45:27,666 INFO L93 Difference]: Finished difference Result 212299 states and 302590 transitions. [2021-11-06 15:45:27,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 15:45:27,667 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 [2021-11-06 15:45:27,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 15:45:28,261 INFO L225 Difference]: With dead ends: 212299 [2021-11-06 15:45:28,261 INFO L226 Difference]: Without dead ends: 127351 [2021-11-06 15:45:28,398 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 15:45:28,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127351 states. [2021-11-06 15:45:31,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127351 to 126990. [2021-11-06 15:45:31,932 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) [2021-11-06 15:45:32,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126990 states to 126990 states and 181471 transitions. [2021-11-06 15:45:32,344 INFO L78 Accepts]: Start accepts. Automaton has 126990 states and 181471 transitions. Word has length 209 [2021-11-06 15:45:32,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 15:45:32,344 INFO L470 AbstractCegarLoop]: Abstraction has 126990 states and 181471 transitions. [2021-11-06 15:45:32,345 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) [2021-11-06 15:45:32,345 INFO L276 IsEmpty]: Start isEmpty. Operand 126990 states and 181471 transitions. [2021-11-06 15:45:32,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-11-06 15:45:32,372 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:45:32,373 INFO L513 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] [2021-11-06 15:45:32,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-06 15:45:32,373 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)] === [2021-11-06 15:45:32,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:45:32,374 INFO L85 PathProgramCache]: Analyzing trace with hash 594450779, now seen corresponding path program 1 times [2021-11-06 15:45:32,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:45:32,374 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499994402] [2021-11-06 15:45:32,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:45:32,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:45:32,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:45:32,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-11-06 15:45:32,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:45:32,909 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-06 15:45:32,909 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:45:32,910 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499994402] [2021-11-06 15:45:32,910 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499994402] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 15:45:32,910 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 15:45:32,910 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 15:45:32,910 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544995887] [2021-11-06 15:45:32,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 15:45:32,911 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 15:45:32,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 15:45:32,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 15:45:32,912 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)