./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-32_7a-drivers--infiniband--ulp--isert--ib_isert.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e19ca921 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--infiniband--ulp--isert--ib_isert.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash d57db9f03a5170fd6970a4ac4989029ee35a0e85ad6a1c5337395bb7ff185d1b --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 14:59:23,900 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 14:59:23,902 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 14:59:23,954 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 14:59:23,955 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 14:59:23,958 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 14:59:23,960 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 14:59:23,963 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 14:59:23,965 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 14:59:23,970 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 14:59:23,971 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 14:59:23,973 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 14:59:23,973 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 14:59:23,975 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 14:59:23,977 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 14:59:23,978 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 14:59:23,979 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 14:59:23,980 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 14:59:23,983 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 14:59:23,989 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 14:59:23,991 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 14:59:23,992 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 14:59:23,993 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 14:59:23,994 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 14:59:24,000 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 14:59:24,000 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 14:59:24,000 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 14:59:24,002 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 14:59:24,003 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 14:59:24,003 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 14:59:24,004 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 14:59:24,005 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 14:59:24,006 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 14:59:24,008 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 14:59:24,009 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 14:59:24,010 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 14:59:24,010 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 14:59:24,010 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 14:59:24,011 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 14:59:24,011 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 14:59:24,012 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 14:59:24,013 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-22 14:59:24,054 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 14:59:24,056 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 14:59:24,057 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 14:59:24,057 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 14:59:24,058 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 14:59:24,058 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 14:59:24,059 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 14:59:24,059 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 14:59:24,059 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 14:59:24,059 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 14:59:24,060 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 14:59:24,061 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 14:59:24,061 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 14:59:24,061 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 14:59:24,061 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 14:59:24,061 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 14:59:24,061 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 14:59:24,062 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 14:59:24,062 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 14:59:24,062 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 14:59:24,062 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 14:59:24,062 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 14:59:24,063 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 14:59:24,063 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 14:59:24,063 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 14:59:24,063 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 14:59:24,063 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 14:59:24,064 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 14:59:24,064 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 14:59:24,064 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 14:59:24,064 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 14:59:24,064 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d57db9f03a5170fd6970a4ac4989029ee35a0e85ad6a1c5337395bb7ff185d1b [2021-12-22 14:59:24,331 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 14:59:24,355 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 14:59:24,357 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 14:59:24,358 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 14:59:24,371 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 14:59:24,373 INFO L432 ainManager$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-32_7a-drivers--infiniband--ulp--isert--ib_isert.ko-entry_point.cil.out.i [2021-12-22 14:59:24,433 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef3638935/e8bfaa282be24487931c7f3042de9dcd/FLAG21347d927 [2021-12-22 14:59:25,292 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 14:59:25,293 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--infiniband--ulp--isert--ib_isert.ko-entry_point.cil.out.i [2021-12-22 14:59:25,354 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef3638935/e8bfaa282be24487931c7f3042de9dcd/FLAG21347d927 [2021-12-22 14:59:25,764 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef3638935/e8bfaa282be24487931c7f3042de9dcd [2021-12-22 14:59:25,768 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 14:59:25,770 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 14:59:25,773 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 14:59:25,773 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 14:59:25,776 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 14:59:25,776 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:59:25" (1/1) ... [2021-12-22 14:59:25,777 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40100ee6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:59:25, skipping insertion in model container [2021-12-22 14:59:25,777 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:59:25" (1/1) ... [2021-12-22 14:59:25,782 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 14:59:25,941 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 14:59:29,081 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--infiniband--ulp--isert--ib_isert.ko-entry_point.cil.out.i[477998,478011] [2021-12-22 14:59:29,446 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 14:59:29,483 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 14:59:30,206 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--infiniband--ulp--isert--ib_isert.ko-entry_point.cil.out.i[477998,478011] [2021-12-22 14:59:30,222 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 14:59:30,341 INFO L208 MainTranslator]: Completed translation [2021-12-22 14:59:30,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:59:30 WrapperNode [2021-12-22 14:59:30,344 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 14:59:30,345 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 14:59:30,346 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 14:59:30,346 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 14:59:30,352 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:59:30" (1/1) ... [2021-12-22 14:59:30,443 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:59:30" (1/1) ... [2021-12-22 14:59:30,659 INFO L137 Inliner]: procedures = 483, calls = 2853, calls flagged for inlining = 237, calls inlined = 184, statements flattened = 6899 [2021-12-22 14:59:30,660 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 14:59:30,661 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 14:59:30,661 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 14:59:30,661 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 14:59:30,669 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:59:30" (1/1) ... [2021-12-22 14:59:30,670 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:59:30" (1/1) ... [2021-12-22 14:59:30,717 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:59:30" (1/1) ... [2021-12-22 14:59:30,717 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:59:30" (1/1) ... [2021-12-22 14:59:30,861 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:59:30" (1/1) ... [2021-12-22 14:59:30,877 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:59:30" (1/1) ... [2021-12-22 14:59:30,912 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:59:30" (1/1) ... [2021-12-22 14:59:30,945 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 14:59:30,946 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 14:59:30,946 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 14:59:30,946 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 14:59:30,947 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:59:30" (1/1) ... [2021-12-22 14:59:30,953 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 14:59:30,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:59:30,988 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-22 14:59:31,032 INFO L130 BoogieDeclarations]: Found specification of procedure ib_wc_status_msg [2021-12-22 14:59:31,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_wc_status_msg [2021-12-22 14:59:31,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-22 14:59:31,033 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-22 14:59:31,033 INFO L130 BoogieDeclarations]: Found specification of procedure isert_setup_id [2021-12-22 14:59:31,033 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_setup_id [2021-12-22 14:59:31,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-22 14:59:31,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-22 14:59:31,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_isert_conn [2021-12-22 14:59:31,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_isert_conn [2021-12-22 14:59:31,034 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2021-12-22 14:59:31,034 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2021-12-22 14:59:31,034 INFO L130 BoogieDeclarations]: Found specification of procedure dump_stack [2021-12-22 14:59:31,034 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_stack [2021-12-22 14:59:31,034 INFO L130 BoogieDeclarations]: Found specification of procedure iscsit_stop_dataout_timer [2021-12-22 14:59:31,034 INFO L138 BoogieDeclarations]: Found implementation of procedure iscsit_stop_dataout_timer [2021-12-22 14:59:31,034 INFO L130 BoogieDeclarations]: Found specification of procedure rdma_destroy_id [2021-12-22 14:59:31,034 INFO L138 BoogieDeclarations]: Found implementation of procedure rdma_destroy_id [2021-12-22 14:59:31,035 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2021-12-22 14:59:31,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2021-12-22 14:59:31,035 INFO L130 BoogieDeclarations]: Found specification of procedure isert_cq_work [2021-12-22 14:59:31,035 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_cq_work [2021-12-22 14:59:31,035 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-22 14:59:31,035 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-22 14:59:31,035 INFO L130 BoogieDeclarations]: Found specification of procedure ib_post_recv [2021-12-22 14:59:31,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_post_recv [2021-12-22 14:59:31,036 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_sync_single_for_device [2021-12-22 14:59:31,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_sync_single_for_device [2021-12-22 14:59:31,036 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-22 14:59:31,036 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-22 14:59:31,036 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_isert_conn [2021-12-22 14:59:31,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_isert_conn [2021-12-22 14:59:31,036 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_unmap_single [2021-12-22 14:59:31,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_unmap_single [2021-12-22 14:59:31,036 INFO L130 BoogieDeclarations]: Found specification of procedure isert_init_send_wr [2021-12-22 14:59:31,037 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_init_send_wr [2021-12-22 14:59:31,037 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_np_accept_mutex_of_isert_np [2021-12-22 14:59:31,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_np_accept_mutex_of_isert_np [2021-12-22 14:59:31,037 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-22 14:59:31,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-22 14:59:31,037 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-22 14:59:31,037 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-22 14:59:31,038 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_np_accept_mutex_of_isert_np [2021-12-22 14:59:31,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_np_accept_mutex_of_isert_np [2021-12-22 14:59:31,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 14:59:31,038 INFO L130 BoogieDeclarations]: Found specification of procedure ib_sg_dma_address [2021-12-22 14:59:31,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_sg_dma_address [2021-12-22 14:59:31,038 INFO L130 BoogieDeclarations]: Found specification of procedure isert_wait_conn [2021-12-22 14:59:31,038 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_wait_conn [2021-12-22 14:59:31,039 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u64~0~X~int~X~int~TO~VOID [2021-12-22 14:59:31,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u64~0~X~int~X~int~TO~VOID [2021-12-22 14:59:31,039 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-12-22 14:59:31,039 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-12-22 14:59:31,039 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2021-12-22 14:59:31,039 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2021-12-22 14:59:31,040 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_map_single [2021-12-22 14:59:31,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_map_single [2021-12-22 14:59:31,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-22 14:59:31,041 INFO L130 BoogieDeclarations]: Found specification of procedure isert_conn_terminate [2021-12-22 14:59:31,041 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_conn_terminate [2021-12-22 14:59:31,041 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-22 14:59:31,041 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-22 14:59:31,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-22 14:59:31,042 INFO L130 BoogieDeclarations]: Found specification of procedure isert_prot_cmd [2021-12-22 14:59:31,042 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_prot_cmd [2021-12-22 14:59:31,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-22 14:59:31,042 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-22 14:59:31,042 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-22 14:59:31,043 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_interruptible [2021-12-22 14:59:31,043 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_interruptible [2021-12-22 14:59:31,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-22 14:59:31,043 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-22 14:59:31,043 INFO L130 BoogieDeclarations]: Found specification of procedure isert_release_work [2021-12-22 14:59:31,044 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_release_work [2021-12-22 14:59:31,044 INFO L130 BoogieDeclarations]: Found specification of procedure isert_free_np [2021-12-22 14:59:31,044 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_free_np [2021-12-22 14:59:31,044 INFO L130 BoogieDeclarations]: Found specification of procedure isert_comp_put [2021-12-22 14:59:31,044 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_comp_put [2021-12-22 14:59:31,044 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-12-22 14:59:31,044 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-12-22 14:59:31,044 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-12-22 14:59:31,044 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-12-22 14:59:31,045 INFO L130 BoogieDeclarations]: Found specification of procedure sg_next [2021-12-22 14:59:31,045 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_next [2021-12-22 14:59:31,045 INFO L130 BoogieDeclarations]: Found specification of procedure sg_copy_from_buffer [2021-12-22 14:59:31,045 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_copy_from_buffer [2021-12-22 14:59:31,045 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-22 14:59:31,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-22 14:59:31,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-22 14:59:31,045 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2021-12-22 14:59:31,046 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2021-12-22 14:59:31,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 14:59:31,046 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2021-12-22 14:59:31,046 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2021-12-22 14:59:31,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-22 14:59:31,047 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-22 14:59:31,047 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-22 14:59:31,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-22 14:59:31,047 INFO L130 BoogieDeclarations]: Found specification of procedure isert_completion_put [2021-12-22 14:59:31,047 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_completion_put [2021-12-22 14:59:31,048 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-12-22 14:59:31,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-12-22 14:59:31,048 INFO L130 BoogieDeclarations]: Found specification of procedure isert_unmap_data_buf [2021-12-22 14:59:31,048 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_unmap_data_buf [2021-12-22 14:59:31,048 INFO L130 BoogieDeclarations]: Found specification of procedure isert_inv_rkey [2021-12-22 14:59:31,049 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_inv_rkey [2021-12-22 14:59:31,049 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-12-22 14:59:31,049 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-12-22 14:59:31,026 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-22 14:59:31,049 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_sync_single_for_cpu [2021-12-22 14:59:31,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_sync_single_for_cpu [2021-12-22 14:59:31,050 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-22 14:59:31,050 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-22 14:59:31,050 INFO L130 BoogieDeclarations]: Found specification of procedure isert_allocate_cmd [2021-12-22 14:59:31,050 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_allocate_cmd [2021-12-22 14:59:31,050 INFO L130 BoogieDeclarations]: Found specification of procedure isert_do_control_comp [2021-12-22 14:59:31,050 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_do_control_comp [2021-12-22 14:59:31,050 INFO L130 BoogieDeclarations]: Found specification of procedure isert_put_conn [2021-12-22 14:59:31,051 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_put_conn [2021-12-22 14:59:31,051 INFO L130 BoogieDeclarations]: Found specification of procedure isert_connect_release [2021-12-22 14:59:31,053 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_connect_release [2021-12-22 14:59:31,053 INFO L130 BoogieDeclarations]: Found specification of procedure isert_free_comps [2021-12-22 14:59:31,053 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_free_comps [2021-12-22 14:59:31,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 14:59:31,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 14:59:31,054 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2021-12-22 14:59:31,055 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2021-12-22 14:59:31,055 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-22 14:59:31,055 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-22 14:59:31,058 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-12-22 14:59:31,059 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-12-22 14:59:31,059 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-12-22 14:59:31,059 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-12-22 14:59:31,059 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-22 14:59:31,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-22 14:59:31,059 INFO L130 BoogieDeclarations]: Found specification of procedure isert_device_put [2021-12-22 14:59:31,059 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_device_put [2021-12-22 14:59:31,059 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-22 14:59:31,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-22 14:59:31,060 INFO L130 BoogieDeclarations]: Found specification of procedure isert_map_data_buf [2021-12-22 14:59:31,060 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_map_data_buf [2021-12-22 14:59:31,060 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-22 14:59:31,060 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-22 14:59:31,060 INFO L130 BoogieDeclarations]: Found specification of procedure isert_free_conn [2021-12-22 14:59:31,060 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_free_conn [2021-12-22 14:59:31,060 INFO L130 BoogieDeclarations]: Found specification of procedure ib_post_send [2021-12-22 14:59:31,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_post_send [2021-12-22 14:59:31,060 INFO L130 BoogieDeclarations]: Found specification of procedure isert_init_tx_hdrs [2021-12-22 14:59:31,060 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_init_tx_hdrs [2021-12-22 14:59:31,060 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2021-12-22 14:59:31,061 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2021-12-22 14:59:31,061 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-12-22 14:59:31,061 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-12-22 14:59:31,061 INFO L130 BoogieDeclarations]: Found specification of procedure ib_free_fast_reg_page_list [2021-12-22 14:59:31,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_free_fast_reg_page_list [2021-12-22 14:59:31,061 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2021-12-22 14:59:31,061 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2021-12-22 14:59:31,061 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-22 14:59:31,061 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-22 14:59:31,061 INFO L130 BoogieDeclarations]: Found specification of procedure isert_aborted_task [2021-12-22 14:59:31,062 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_aborted_task [2021-12-22 14:59:31,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-22 14:59:31,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-22 14:59:31,062 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2021-12-22 14:59:31,062 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2021-12-22 14:59:31,062 INFO L130 BoogieDeclarations]: Found specification of procedure isert_put_response [2021-12-22 14:59:31,062 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_put_response [2021-12-22 14:59:31,062 INFO L130 BoogieDeclarations]: Found specification of procedure isert_wait4flush [2021-12-22 14:59:31,062 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_wait4flush [2021-12-22 14:59:31,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-22 14:59:31,063 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-22 14:59:31,063 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-22 14:59:31,063 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-22 14:59:31,063 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-22 14:59:31,063 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-22 14:59:31,063 INFO L130 BoogieDeclarations]: Found specification of procedure isert_free_login_buf [2021-12-22 14:59:31,063 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_free_login_buf [2021-12-22 14:59:31,063 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-12-22 14:59:31,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-12-22 14:59:31,063 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-12-22 14:59:31,064 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-12-22 14:59:31,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-22 14:59:31,064 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-22 14:59:31,064 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-22 14:59:31,064 INFO L130 BoogieDeclarations]: Found specification of procedure iscsit_priv_cmd [2021-12-22 14:59:31,064 INFO L138 BoogieDeclarations]: Found implementation of procedure iscsit_priv_cmd [2021-12-22 14:59:31,064 INFO L130 BoogieDeclarations]: Found specification of procedure isert_put_nopin [2021-12-22 14:59:31,064 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_put_nopin [2021-12-22 14:59:31,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-22 14:59:31,064 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2021-12-22 14:59:31,065 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2021-12-22 14:59:31,065 INFO L130 BoogieDeclarations]: Found specification of procedure isert_reg_rdma [2021-12-22 14:59:31,065 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_reg_rdma [2021-12-22 14:59:31,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-22 14:59:31,066 INFO L130 BoogieDeclarations]: Found specification of procedure isert_post_recv [2021-12-22 14:59:31,066 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_post_recv [2021-12-22 14:59:31,066 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-12-22 14:59:31,066 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-12-22 14:59:31,066 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-22 14:59:31,066 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-22 14:59:31,066 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2021-12-22 14:59:31,067 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2021-12-22 14:59:31,067 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-12-22 14:59:31,067 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-12-22 14:59:31,067 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-22 14:59:31,067 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-22 14:59:31,067 INFO L130 BoogieDeclarations]: Found specification of procedure isert_rdma_post_recvl [2021-12-22 14:59:31,067 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_rdma_post_recvl [2021-12-22 14:59:31,068 INFO L130 BoogieDeclarations]: Found specification of procedure isert_conn_free_fastreg_pool [2021-12-22 14:59:31,068 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_conn_free_fastreg_pool [2021-12-22 14:59:31,068 INFO L130 BoogieDeclarations]: Found specification of procedure transport_send_check_condition_and_sense [2021-12-22 14:59:31,068 INFO L138 BoogieDeclarations]: Found implementation of procedure transport_send_check_condition_and_sense [2021-12-22 14:59:31,068 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-12-22 14:59:31,068 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-12-22 14:59:31,068 INFO L130 BoogieDeclarations]: Found specification of procedure isert_reg_sig_mr [2021-12-22 14:59:31,068 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_reg_sig_mr [2021-12-22 14:59:31,068 INFO L130 BoogieDeclarations]: Found specification of procedure transport_generic_free_cmd [2021-12-22 14:59:31,068 INFO L138 BoogieDeclarations]: Found implementation of procedure transport_generic_free_cmd [2021-12-22 14:59:31,068 INFO L130 BoogieDeclarations]: Found specification of procedure isert_unmap_tx_desc [2021-12-22 14:59:31,069 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_unmap_tx_desc [2021-12-22 14:59:31,069 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-12-22 14:59:31,069 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-12-22 14:59:31,069 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_device_list_mutex [2021-12-22 14:59:31,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_device_list_mutex [2021-12-22 14:59:31,069 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_device_list_mutex [2021-12-22 14:59:31,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_device_list_mutex [2021-12-22 14:59:31,069 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_weight [2021-12-22 14:59:31,069 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_weight [2021-12-22 14:59:31,069 INFO L130 BoogieDeclarations]: Found specification of procedure isert_handle_prot_cmd [2021-12-22 14:59:31,070 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_handle_prot_cmd [2021-12-22 14:59:31,070 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dereg_mr [2021-12-22 14:59:31,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dereg_mr [2021-12-22 14:59:31,070 INFO L130 BoogieDeclarations]: Found specification of procedure ib_req_notify_cq [2021-12-22 14:59:31,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_req_notify_cq [2021-12-22 14:59:31,070 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-22 14:59:31,070 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-22 14:59:31,070 INFO L130 BoogieDeclarations]: Found specification of procedure isert_check_pi_status [2021-12-22 14:59:31,070 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_check_pi_status [2021-12-22 14:59:31,070 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2021-12-22 14:59:31,071 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2021-12-22 14:59:31,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 14:59:31,071 INFO L130 BoogieDeclarations]: Found specification of procedure isert_create_send_desc [2021-12-22 14:59:31,071 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_create_send_desc [2021-12-22 14:59:31,071 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-22 14:59:31,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-22 14:59:31,071 INFO L130 BoogieDeclarations]: Found specification of procedure ib_sg_dma_len [2021-12-22 14:59:31,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_sg_dma_len [2021-12-22 14:59:31,074 INFO L130 BoogieDeclarations]: Found specification of procedure isert_fast_reg_mr [2021-12-22 14:59:31,074 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_fast_reg_mr [2021-12-22 14:59:31,074 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-22 14:59:31,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-22 14:59:31,074 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2021-12-22 14:59:31,074 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2021-12-22 14:59:31,075 INFO L130 BoogieDeclarations]: Found specification of procedure isert_post_response [2021-12-22 14:59:31,075 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_post_response [2021-12-22 14:59:31,075 INFO L130 BoogieDeclarations]: Found specification of procedure ib_alloc_fast_reg_mr [2021-12-22 14:59:31,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_alloc_fast_reg_mr [2021-12-22 14:59:31,076 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-12-22 14:59:31,076 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-12-22 14:59:31,076 INFO L130 BoogieDeclarations]: Found specification of procedure isert_rx_login_req [2021-12-22 14:59:31,076 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_rx_login_req [2021-12-22 14:59:31,076 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2021-12-22 14:59:31,076 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2021-12-22 14:59:31,076 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_mapping_error [2021-12-22 14:59:31,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_mapping_error [2021-12-22 14:59:31,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 14:59:31,077 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-12-22 14:59:31,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-12-22 14:59:31,077 INFO L130 BoogieDeclarations]: Found specification of procedure target_put_sess_cmd [2021-12-22 14:59:31,077 INFO L138 BoogieDeclarations]: Found implementation of procedure target_put_sess_cmd [2021-12-22 14:59:31,077 INFO L130 BoogieDeclarations]: Found specification of procedure isert_set_dif_domain [2021-12-22 14:59:31,077 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_set_dif_domain [2021-12-22 14:59:31,077 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2021-12-22 14:59:31,077 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2021-12-22 14:59:31,077 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dealloc_pd [2021-12-22 14:59:31,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dealloc_pd [2021-12-22 14:59:31,077 INFO L130 BoogieDeclarations]: Found specification of procedure ib_alloc_fast_reg_page_list [2021-12-22 14:59:31,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_alloc_fast_reg_page_list [2021-12-22 14:59:31,078 INFO L130 BoogieDeclarations]: Found specification of procedure iscsit_build_rsp_pdu [2021-12-22 14:59:31,078 INFO L138 BoogieDeclarations]: Found implementation of procedure iscsit_build_rsp_pdu [2021-12-22 14:59:32,057 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 14:59:32,062 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 14:59:32,247 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-22 14:59:38,007 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 14:59:38,029 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 14:59:38,030 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-22 14:59:38,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:59:38 BoogieIcfgContainer [2021-12-22 14:59:38,034 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 14:59:38,035 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 14:59:38,035 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 14:59:38,038 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 14:59:38,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 02:59:25" (1/3) ... [2021-12-22 14:59:38,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a158b30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:59:38, skipping insertion in model container [2021-12-22 14:59:38,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:59:30" (2/3) ... [2021-12-22 14:59:38,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a158b30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:59:38, skipping insertion in model container [2021-12-22 14:59:38,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:59:38" (3/3) ... [2021-12-22 14:59:38,040 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--infiniband--ulp--isert--ib_isert.ko-entry_point.cil.out.i [2021-12-22 14:59:38,044 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 14:59:38,044 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-22 14:59:38,088 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 14:59:38,092 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-22 14:59:38,093 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-22 14:59:38,146 INFO L276 IsEmpty]: Start isEmpty. Operand has 2324 states, 1602 states have (on average 1.3258426966292134) internal successors, (2124), 1662 states have internal predecessors, (2124), 590 states have call successors, (590), 131 states have call predecessors, (590), 130 states have return successors, (584), 573 states have call predecessors, (584), 584 states have call successors, (584) [2021-12-22 14:59:38,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-12-22 14:59:38,164 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:59:38,164 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:59:38,165 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:59:38,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:59:38,169 INFO L85 PathProgramCache]: Analyzing trace with hash 287510443, now seen corresponding path program 1 times [2021-12-22 14:59:38,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:59:38,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686899478] [2021-12-22 14:59:38,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:59:38,178 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:59:38,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:59:38,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:59:38,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:59:38,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:59:38,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:59:38,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:59:38,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:59:38,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-22 14:59:38,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:59:38,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:59:38,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:59:38,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-22 14:59:38,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:59:38,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:59:38,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:59:38,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-22 14:59:38,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:59:38,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:59:38,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:59:38,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-22 14:59:38,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:59:38,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:59:38,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:59:38,933 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-12-22 14:59:38,933 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:59:38,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686899478] [2021-12-22 14:59:38,934 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686899478] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:59:38,935 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:59:38,935 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 14:59:38,936 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336828442] [2021-12-22 14:59:38,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:59:38,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 14:59:38,944 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:59:38,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 14:59:38,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-22 14:59:38,973 INFO L87 Difference]: Start difference. First operand has 2324 states, 1602 states have (on average 1.3258426966292134) internal successors, (2124), 1662 states have internal predecessors, (2124), 590 states have call successors, (590), 131 states have call predecessors, (590), 130 states have return successors, (584), 573 states have call predecessors, (584), 584 states have call successors, (584) Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-22 14:59:41,463 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:59:45,658 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:59:50,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:59:50,643 INFO L93 Difference]: Finished difference Result 5414 states and 8111 transitions. [2021-12-22 14:59:50,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-22 14:59:50,646 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 82 [2021-12-22 14:59:50,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:59:50,702 INFO L225 Difference]: With dead ends: 5414 [2021-12-22 14:59:50,702 INFO L226 Difference]: Without dead ends: 3072 [2021-12-22 14:59:50,730 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-22 14:59:50,734 INFO L933 BasicCegarLoop]: 2950 mSDtfsCounter, 6779 mSDsluCounter, 1595 mSDsCounter, 0 mSdLazyCounter, 1606 mSolverCounterSat, 3788 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7113 SdHoareTripleChecker+Valid, 4545 SdHoareTripleChecker+Invalid, 5396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3788 IncrementalHoareTripleChecker+Valid, 1606 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2021-12-22 14:59:50,735 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7113 Valid, 4545 Invalid, 5396 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3788 Valid, 1606 Invalid, 2 Unknown, 0 Unchecked, 11.1s Time] [2021-12-22 14:59:50,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3072 states. [2021-12-22 14:59:51,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3072 to 2314. [2021-12-22 14:59:51,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2314 states, 1597 states have (on average 1.313713212273012) internal successors, (2098), 1647 states have internal predecessors, (2098), 582 states have call successors, (582), 135 states have call predecessors, (582), 134 states have return successors, (572), 561 states have call predecessors, (572), 572 states have call successors, (572) [2021-12-22 14:59:51,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2314 states to 2314 states and 3252 transitions. [2021-12-22 14:59:51,073 INFO L78 Accepts]: Start accepts. Automaton has 2314 states and 3252 transitions. Word has length 82 [2021-12-22 14:59:51,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:59:51,074 INFO L470 AbstractCegarLoop]: Abstraction has 2314 states and 3252 transitions. [2021-12-22 14:59:51,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-22 14:59:51,074 INFO L276 IsEmpty]: Start isEmpty. Operand 2314 states and 3252 transitions. [2021-12-22 14:59:51,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-12-22 14:59:51,080 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:59:51,080 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:59:51,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 14:59:51,080 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:59:51,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:59:51,081 INFO L85 PathProgramCache]: Analyzing trace with hash 321914562, now seen corresponding path program 1 times [2021-12-22 14:59:51,081 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:59:51,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447381390] [2021-12-22 14:59:51,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:59:51,082 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:59:51,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:59:51,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:59:51,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:59:51,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:59:51,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:59:51,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:59:51,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:59:51,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-22 14:59:51,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:59:51,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:59:51,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:59:51,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-22 14:59:51,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:59:51,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:59:51,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:59:51,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-22 14:59:51,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:59:51,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:59:51,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:59:51,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-22 14:59:51,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:59:51,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:59:51,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:59:51,537 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-12-22 14:59:51,538 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:59:51,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447381390] [2021-12-22 14:59:51,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447381390] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:59:51,542 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:59:51,542 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 14:59:51,542 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13608184] [2021-12-22 14:59:51,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:59:51,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 14:59:51,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:59:51,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 14:59:51,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-22 14:59:51,545 INFO L87 Difference]: Start difference. First operand 2314 states and 3252 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-22 14:59:53,881 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:59:55,912 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:00:00,714 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:00:02,791 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:00:09,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:00:09,922 INFO L93 Difference]: Finished difference Result 3072 states and 4573 transitions. [2021-12-22 15:00:09,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 15:00:09,923 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 83 [2021-12-22 15:00:09,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:00:09,940 INFO L225 Difference]: With dead ends: 3072 [2021-12-22 15:00:09,941 INFO L226 Difference]: Without dead ends: 3069 [2021-12-22 15:00:09,944 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-12-22 15:00:09,946 INFO L933 BasicCegarLoop]: 2912 mSDtfsCounter, 5397 mSDsluCounter, 3841 mSDsCounter, 0 mSdLazyCounter, 3105 mSolverCounterSat, 2693 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5736 SdHoareTripleChecker+Valid, 6753 SdHoareTripleChecker+Invalid, 5802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2693 IncrementalHoareTripleChecker+Valid, 3105 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.0s IncrementalHoareTripleChecker+Time [2021-12-22 15:00:09,946 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5736 Valid, 6753 Invalid, 5802 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2693 Valid, 3105 Invalid, 4 Unknown, 0 Unchecked, 18.0s Time] [2021-12-22 15:00:09,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3069 states. [2021-12-22 15:00:10,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3069 to 2313. [2021-12-22 15:00:10,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2313 states, 1597 states have (on average 1.3130870381966186) internal successors, (2097), 1646 states have internal predecessors, (2097), 581 states have call successors, (581), 135 states have call predecessors, (581), 134 states have return successors, (572), 561 states have call predecessors, (572), 572 states have call successors, (572) [2021-12-22 15:00:10,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2313 states to 2313 states and 3250 transitions. [2021-12-22 15:00:10,109 INFO L78 Accepts]: Start accepts. Automaton has 2313 states and 3250 transitions. Word has length 83 [2021-12-22 15:00:10,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:00:10,112 INFO L470 AbstractCegarLoop]: Abstraction has 2313 states and 3250 transitions. [2021-12-22 15:00:10,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-22 15:00:10,112 INFO L276 IsEmpty]: Start isEmpty. Operand 2313 states and 3250 transitions. [2021-12-22 15:00:10,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-12-22 15:00:10,114 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:00:10,115 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:00:10,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-22 15:00:10,115 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:00:10,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:00:10,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1388447118, now seen corresponding path program 1 times [2021-12-22 15:00:10,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:00:10,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549268293] [2021-12-22 15:00:10,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:00:10,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:00:10,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:00:10,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:00:10,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:00:10,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:00:10,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:00:10,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:00:10,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:00:10,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-22 15:00:10,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:00:10,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:00:10,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:00:10,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-22 15:00:10,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:00:10,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:00:10,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:00:10,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-22 15:00:10,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:00:10,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:00:10,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:00:10,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-22 15:00:10,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:00:10,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:00:10,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:00:10,498 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-12-22 15:00:10,499 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:00:10,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549268293] [2021-12-22 15:00:10,499 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549268293] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:00:10,499 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:00:10,499 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 15:00:10,499 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054994117] [2021-12-22 15:00:10,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:00:10,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 15:00:10,501 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:00:10,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 15:00:10,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-22 15:00:10,502 INFO L87 Difference]: Start difference. First operand 2313 states and 3250 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-22 15:00:12,822 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:00:20,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:00:20,903 INFO L93 Difference]: Finished difference Result 3071 states and 4571 transitions. [2021-12-22 15:00:20,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 15:00:20,904 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 84 [2021-12-22 15:00:20,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:00:20,921 INFO L225 Difference]: With dead ends: 3071 [2021-12-22 15:00:20,921 INFO L226 Difference]: Without dead ends: 3068 [2021-12-22 15:00:20,925 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-12-22 15:00:20,929 INFO L933 BasicCegarLoop]: 2898 mSDtfsCounter, 5779 mSDsluCounter, 2636 mSDsCounter, 0 mSdLazyCounter, 2323 mSolverCounterSat, 2862 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6124 SdHoareTripleChecker+Valid, 5534 SdHoareTripleChecker+Invalid, 5186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2862 IncrementalHoareTripleChecker+Valid, 2323 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2021-12-22 15:00:20,930 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6124 Valid, 5534 Invalid, 5186 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2862 Valid, 2323 Invalid, 1 Unknown, 0 Unchecked, 10.0s Time] [2021-12-22 15:00:20,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3068 states. [2021-12-22 15:00:21,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3068 to 2312. [2021-12-22 15:00:21,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2312 states, 1597 states have (on average 1.3124608641202253) internal successors, (2096), 1645 states have internal predecessors, (2096), 580 states have call successors, (580), 135 states have call predecessors, (580), 134 states have return successors, (572), 561 states have call predecessors, (572), 572 states have call successors, (572) [2021-12-22 15:00:21,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2312 states to 2312 states and 3248 transitions. [2021-12-22 15:00:21,056 INFO L78 Accepts]: Start accepts. Automaton has 2312 states and 3248 transitions. Word has length 84 [2021-12-22 15:00:21,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:00:21,057 INFO L470 AbstractCegarLoop]: Abstraction has 2312 states and 3248 transitions. [2021-12-22 15:00:21,057 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-22 15:00:21,057 INFO L276 IsEmpty]: Start isEmpty. Operand 2312 states and 3248 transitions. [2021-12-22 15:00:21,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-12-22 15:00:21,059 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:00:21,059 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:00:21,060 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-22 15:00:21,060 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:00:21,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:00:21,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1031885892, now seen corresponding path program 1 times [2021-12-22 15:00:21,061 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:00:21,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128502972] [2021-12-22 15:00:21,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:00:21,061 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:00:21,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:00:21,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:00:21,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:00:21,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:00:21,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:00:21,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:00:21,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:00:21,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-22 15:00:21,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:00:21,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:00:21,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:00:21,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-22 15:00:21,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:00:21,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:00:21,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:00:21,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-22 15:00:21,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:00:21,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:00:21,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:00:21,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-22 15:00:21,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:00:21,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:00:21,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:00:21,364 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-12-22 15:00:21,364 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:00:21,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128502972] [2021-12-22 15:00:21,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128502972] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:00:21,365 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:00:21,365 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 15:00:21,365 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035660963] [2021-12-22 15:00:21,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:00:21,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 15:00:21,366 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:00:21,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 15:00:21,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-22 15:00:21,367 INFO L87 Difference]: Start difference. First operand 2312 states and 3248 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2021-12-22 15:00:24,987 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []