./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 0f8a17c6 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 0.2.1-dev-0f8a17c [2021-11-17 03:27:10,276 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-17 03:27:10,278 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-17 03:27:10,333 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-17 03:27:10,338 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-17 03:27:10,339 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-17 03:27:10,340 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-17 03:27:10,343 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-17 03:27:10,345 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-17 03:27:10,345 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-17 03:27:10,346 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-17 03:27:10,347 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-17 03:27:10,348 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-17 03:27:10,350 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-17 03:27:10,351 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-17 03:27:10,352 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-17 03:27:10,354 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-17 03:27:10,357 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-17 03:27:10,358 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-17 03:27:10,361 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-17 03:27:10,364 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-17 03:27:10,366 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-17 03:27:10,367 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-17 03:27:10,367 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-17 03:27:10,369 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-17 03:27:10,371 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-17 03:27:10,371 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-17 03:27:10,372 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-17 03:27:10,372 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-17 03:27:10,373 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-17 03:27:10,373 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-17 03:27:10,374 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-17 03:27:10,375 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-17 03:27:10,375 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-17 03:27:10,376 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-17 03:27:10,377 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-17 03:27:10,377 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-17 03:27:10,378 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-17 03:27:10,378 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-17 03:27:10,378 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-17 03:27:10,379 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-17 03:27:10,379 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-17 03:27:10,402 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-17 03:27:10,406 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-17 03:27:10,419 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-17 03:27:10,419 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-17 03:27:10,420 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-17 03:27:10,420 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-17 03:27:10,421 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-17 03:27:10,421 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-17 03:27:10,421 INFO L138 SettingsManager]: * Use SBE=true [2021-11-17 03:27:10,421 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-17 03:27:10,421 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-17 03:27:10,421 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-17 03:27:10,422 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-17 03:27:10,422 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-17 03:27:10,422 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-17 03:27:10,422 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-17 03:27:10,422 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-17 03:27:10,422 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-17 03:27:10,422 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-17 03:27:10,423 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-17 03:27:10,423 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-17 03:27:10,423 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 03:27:10,423 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-17 03:27:10,423 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-17 03:27:10,423 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-17 03:27:10,424 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-17 03:27:10,424 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-17 03:27:10,424 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-17 03:27:10,424 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-17 03:27:10,424 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-17 03:27:10,424 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-17 03:27:10,424 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d57db9f03a5170fd6970a4ac4989029ee35a0e85ad6a1c5337395bb7ff185d1b [2021-11-17 03:27:10,622 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-17 03:27:10,645 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-17 03:27:10,647 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-17 03:27:10,648 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-17 03:27:10,648 INFO L275 PluginConnector]: CDTParser initialized [2021-11-17 03:27:10,649 INFO L432 ainManager$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 [2021-11-17 03:27:10,692 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/506f0119b/4f9e20702db04e8dab0c66c26ad053ba/FLAG6ecd38280 [2021-11-17 03:27:11,373 INFO L306 CDTParser]: Found 1 translation units. [2021-11-17 03:27:11,374 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 [2021-11-17 03:27:11,427 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/506f0119b/4f9e20702db04e8dab0c66c26ad053ba/FLAG6ecd38280 [2021-11-17 03:27:11,927 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/506f0119b/4f9e20702db04e8dab0c66c26ad053ba [2021-11-17 03:27:11,930 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-17 03:27:11,931 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-17 03:27:11,933 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-17 03:27:11,933 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-17 03:27:11,936 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-17 03:27:11,936 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:27:11" (1/1) ... [2021-11-17 03:27:11,937 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d070e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:27:11, skipping insertion in model container [2021-11-17 03:27:11,938 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:27:11" (1/1) ... [2021-11-17 03:27:11,942 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-17 03:27:12,070 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-17 03:27:14,255 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] [2021-11-17 03:27:14,392 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 03:27:14,412 INFO L203 MainTranslator]: Completed pre-run [2021-11-17 03:27:14,960 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] [2021-11-17 03:27:14,975 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 03:27:15,083 INFO L208 MainTranslator]: Completed translation [2021-11-17 03:27:15,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:27:15 WrapperNode [2021-11-17 03:27:15,084 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-17 03:27:15,085 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-17 03:27:15,086 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-17 03:27:15,086 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-17 03:27:15,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:27:15" (1/1) ... [2021-11-17 03:27:15,185 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:27:15" (1/1) ... [2021-11-17 03:27:15,362 INFO L137 Inliner]: procedures = 483, calls = 2853, calls flagged for inlining = 237, calls inlined = 184, statements flattened = 6896 [2021-11-17 03:27:15,362 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-17 03:27:15,363 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-17 03:27:15,363 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-17 03:27:15,363 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-17 03:27:15,369 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:27:15" (1/1) ... [2021-11-17 03:27:15,369 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:27:15" (1/1) ... [2021-11-17 03:27:15,409 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:27:15" (1/1) ... [2021-11-17 03:27:15,409 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:27:15" (1/1) ... [2021-11-17 03:27:15,503 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:27:15" (1/1) ... [2021-11-17 03:27:15,524 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:27:15" (1/1) ... [2021-11-17 03:27:15,551 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:27:15" (1/1) ... [2021-11-17 03:27:15,580 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-17 03:27:15,581 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-17 03:27:15,582 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-17 03:27:15,582 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-17 03:27:15,583 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:27:15" (1/1) ... [2021-11-17 03:27:15,588 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 03:27:15,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 03:27:15,606 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) [2021-11-17 03:27:15,671 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 [2021-11-17 03:27:15,700 INFO L130 BoogieDeclarations]: Found specification of procedure ib_wc_status_msg [2021-11-17 03:27:15,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_wc_status_msg [2021-11-17 03:27:15,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-17 03:27:15,701 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-17 03:27:15,701 INFO L130 BoogieDeclarations]: Found specification of procedure isert_setup_id [2021-11-17 03:27:15,701 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_setup_id [2021-11-17 03:27:15,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-17 03:27:15,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-17 03:27:15,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_isert_conn [2021-11-17 03:27:15,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_isert_conn [2021-11-17 03:27:15,701 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2021-11-17 03:27:15,701 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2021-11-17 03:27:15,701 INFO L130 BoogieDeclarations]: Found specification of procedure dump_stack [2021-11-17 03:27:15,701 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_stack [2021-11-17 03:27:15,701 INFO L130 BoogieDeclarations]: Found specification of procedure iscsit_stop_dataout_timer [2021-11-17 03:27:15,702 INFO L138 BoogieDeclarations]: Found implementation of procedure iscsit_stop_dataout_timer [2021-11-17 03:27:15,702 INFO L130 BoogieDeclarations]: Found specification of procedure rdma_destroy_id [2021-11-17 03:27:15,702 INFO L138 BoogieDeclarations]: Found implementation of procedure rdma_destroy_id [2021-11-17 03:27:15,702 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2021-11-17 03:27:15,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2021-11-17 03:27:15,702 INFO L130 BoogieDeclarations]: Found specification of procedure isert_cq_work [2021-11-17 03:27:15,702 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_cq_work [2021-11-17 03:27:15,702 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-17 03:27:15,702 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-17 03:27:15,702 INFO L130 BoogieDeclarations]: Found specification of procedure ib_post_recv [2021-11-17 03:27:15,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_post_recv [2021-11-17 03:27:15,702 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_sync_single_for_device [2021-11-17 03:27:15,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_sync_single_for_device [2021-11-17 03:27:15,702 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-17 03:27:15,702 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-17 03:27:15,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_isert_conn [2021-11-17 03:27:15,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_isert_conn [2021-11-17 03:27:15,702 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_unmap_single [2021-11-17 03:27:15,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_unmap_single [2021-11-17 03:27:15,703 INFO L130 BoogieDeclarations]: Found specification of procedure isert_init_send_wr [2021-11-17 03:27:15,703 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_init_send_wr [2021-11-17 03:27:15,703 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_np_accept_mutex_of_isert_np [2021-11-17 03:27:15,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_np_accept_mutex_of_isert_np [2021-11-17 03:27:15,703 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-17 03:27:15,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-17 03:27:15,703 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-17 03:27:15,703 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-17 03:27:15,703 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_np_accept_mutex_of_isert_np [2021-11-17 03:27:15,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_np_accept_mutex_of_isert_np [2021-11-17 03:27:15,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-17 03:27:15,703 INFO L130 BoogieDeclarations]: Found specification of procedure ib_sg_dma_address [2021-11-17 03:27:15,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_sg_dma_address [2021-11-17 03:27:15,703 INFO L130 BoogieDeclarations]: Found specification of procedure isert_wait_conn [2021-11-17 03:27:15,703 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_wait_conn [2021-11-17 03:27:15,703 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u64~0~X~int~X~int~TO~VOID [2021-11-17 03:27:15,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u64~0~X~int~X~int~TO~VOID [2021-11-17 03:27:15,704 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-11-17 03:27:15,704 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-11-17 03:27:15,704 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2021-11-17 03:27:15,704 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2021-11-17 03:27:15,715 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_map_single [2021-11-17 03:27:15,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_map_single [2021-11-17 03:27:15,715 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-17 03:27:15,715 INFO L130 BoogieDeclarations]: Found specification of procedure isert_conn_terminate [2021-11-17 03:27:15,715 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_conn_terminate [2021-11-17 03:27:15,715 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-17 03:27:15,715 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-17 03:27:15,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-17 03:27:15,715 INFO L130 BoogieDeclarations]: Found specification of procedure isert_prot_cmd [2021-11-17 03:27:15,715 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_prot_cmd [2021-11-17 03:27:15,716 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-17 03:27:15,716 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-17 03:27:15,716 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-17 03:27:15,716 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_interruptible [2021-11-17 03:27:15,716 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_interruptible [2021-11-17 03:27:15,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-17 03:27:15,716 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-17 03:27:15,716 INFO L130 BoogieDeclarations]: Found specification of procedure isert_release_work [2021-11-17 03:27:15,716 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_release_work [2021-11-17 03:27:15,716 INFO L130 BoogieDeclarations]: Found specification of procedure isert_free_np [2021-11-17 03:27:15,716 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_free_np [2021-11-17 03:27:15,716 INFO L130 BoogieDeclarations]: Found specification of procedure isert_comp_put [2021-11-17 03:27:15,716 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_comp_put [2021-11-17 03:27:15,716 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-11-17 03:27:15,716 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-11-17 03:27:15,716 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-11-17 03:27:15,716 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-11-17 03:27:15,716 INFO L130 BoogieDeclarations]: Found specification of procedure sg_next [2021-11-17 03:27:15,717 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_next [2021-11-17 03:27:15,717 INFO L130 BoogieDeclarations]: Found specification of procedure sg_copy_from_buffer [2021-11-17 03:27:15,717 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_copy_from_buffer [2021-11-17 03:27:15,717 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-11-17 03:27:15,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-11-17 03:27:15,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-17 03:27:15,717 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2021-11-17 03:27:15,717 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2021-11-17 03:27:15,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-17 03:27:15,717 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2021-11-17 03:27:15,717 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2021-11-17 03:27:15,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-17 03:27:15,717 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-17 03:27:15,717 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-17 03:27:15,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-17 03:27:15,717 INFO L130 BoogieDeclarations]: Found specification of procedure isert_completion_put [2021-11-17 03:27:15,717 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_completion_put [2021-11-17 03:27:15,717 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-17 03:27:15,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-17 03:27:15,718 INFO L130 BoogieDeclarations]: Found specification of procedure isert_unmap_data_buf [2021-11-17 03:27:15,718 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_unmap_data_buf [2021-11-17 03:27:15,718 INFO L130 BoogieDeclarations]: Found specification of procedure isert_inv_rkey [2021-11-17 03:27:15,718 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_inv_rkey [2021-11-17 03:27:15,718 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-17 03:27:15,718 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-17 03:27:15,718 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_sync_single_for_cpu [2021-11-17 03:27:15,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_sync_single_for_cpu [2021-11-17 03:27:15,718 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-17 03:27:15,718 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-17 03:27:15,718 INFO L130 BoogieDeclarations]: Found specification of procedure isert_allocate_cmd [2021-11-17 03:27:15,718 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_allocate_cmd [2021-11-17 03:27:15,718 INFO L130 BoogieDeclarations]: Found specification of procedure isert_do_control_comp [2021-11-17 03:27:15,718 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_do_control_comp [2021-11-17 03:27:15,718 INFO L130 BoogieDeclarations]: Found specification of procedure isert_put_conn [2021-11-17 03:27:15,718 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_put_conn [2021-11-17 03:27:15,718 INFO L130 BoogieDeclarations]: Found specification of procedure isert_connect_release [2021-11-17 03:27:15,718 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_connect_release [2021-11-17 03:27:15,718 INFO L130 BoogieDeclarations]: Found specification of procedure isert_free_comps [2021-11-17 03:27:15,719 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_free_comps [2021-11-17 03:27:15,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-17 03:27:15,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-17 03:27:15,719 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2021-11-17 03:27:15,719 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2021-11-17 03:27:15,719 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-17 03:27:15,719 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-17 03:27:15,719 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-11-17 03:27:15,719 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-11-17 03:27:15,719 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-11-17 03:27:15,719 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-11-17 03:27:15,719 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-17 03:27:15,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-17 03:27:15,719 INFO L130 BoogieDeclarations]: Found specification of procedure isert_device_put [2021-11-17 03:27:15,719 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_device_put [2021-11-17 03:27:15,719 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-17 03:27:15,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-17 03:27:15,719 INFO L130 BoogieDeclarations]: Found specification of procedure isert_map_data_buf [2021-11-17 03:27:15,720 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_map_data_buf [2021-11-17 03:27:15,720 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-17 03:27:15,720 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-17 03:27:15,720 INFO L130 BoogieDeclarations]: Found specification of procedure isert_free_conn [2021-11-17 03:27:15,720 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_free_conn [2021-11-17 03:27:15,720 INFO L130 BoogieDeclarations]: Found specification of procedure ib_post_send [2021-11-17 03:27:15,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_post_send [2021-11-17 03:27:15,720 INFO L130 BoogieDeclarations]: Found specification of procedure isert_init_tx_hdrs [2021-11-17 03:27:15,720 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_init_tx_hdrs [2021-11-17 03:27:15,720 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2021-11-17 03:27:15,720 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2021-11-17 03:27:15,720 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-17 03:27:15,720 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-17 03:27:15,720 INFO L130 BoogieDeclarations]: Found specification of procedure ib_free_fast_reg_page_list [2021-11-17 03:27:15,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_free_fast_reg_page_list [2021-11-17 03:27:15,720 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2021-11-17 03:27:15,720 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2021-11-17 03:27:15,720 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-17 03:27:15,720 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-17 03:27:15,720 INFO L130 BoogieDeclarations]: Found specification of procedure isert_aborted_task [2021-11-17 03:27:15,720 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_aborted_task [2021-11-17 03:27:15,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-17 03:27:15,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-17 03:27:15,721 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2021-11-17 03:27:15,721 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2021-11-17 03:27:15,721 INFO L130 BoogieDeclarations]: Found specification of procedure isert_put_response [2021-11-17 03:27:15,721 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_put_response [2021-11-17 03:27:15,721 INFO L130 BoogieDeclarations]: Found specification of procedure isert_wait4flush [2021-11-17 03:27:15,721 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_wait4flush [2021-11-17 03:27:15,721 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-17 03:27:15,721 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-17 03:27:15,721 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-17 03:27:15,721 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-17 03:27:15,721 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-11-17 03:27:15,721 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-11-17 03:27:15,721 INFO L130 BoogieDeclarations]: Found specification of procedure isert_free_login_buf [2021-11-17 03:27:15,721 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_free_login_buf [2021-11-17 03:27:15,721 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-11-17 03:27:15,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-11-17 03:27:15,721 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-11-17 03:27:15,721 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-11-17 03:27:15,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-17 03:27:15,722 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-17 03:27:15,722 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-17 03:27:15,722 INFO L130 BoogieDeclarations]: Found specification of procedure iscsit_priv_cmd [2021-11-17 03:27:15,722 INFO L138 BoogieDeclarations]: Found implementation of procedure iscsit_priv_cmd [2021-11-17 03:27:15,722 INFO L130 BoogieDeclarations]: Found specification of procedure isert_put_nopin [2021-11-17 03:27:15,722 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_put_nopin [2021-11-17 03:27:15,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-17 03:27:15,722 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2021-11-17 03:27:15,722 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2021-11-17 03:27:15,722 INFO L130 BoogieDeclarations]: Found specification of procedure isert_reg_rdma [2021-11-17 03:27:15,722 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_reg_rdma [2021-11-17 03:27:15,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-17 03:27:15,722 INFO L130 BoogieDeclarations]: Found specification of procedure isert_post_recv [2021-11-17 03:27:15,722 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_post_recv [2021-11-17 03:27:15,722 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-11-17 03:27:15,722 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-11-17 03:27:15,722 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-17 03:27:15,722 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-17 03:27:15,722 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2021-11-17 03:27:15,722 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2021-11-17 03:27:15,723 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-11-17 03:27:15,723 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-11-17 03:27:15,723 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-11-17 03:27:15,723 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-11-17 03:27:15,723 INFO L130 BoogieDeclarations]: Found specification of procedure isert_rdma_post_recvl [2021-11-17 03:27:15,723 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_rdma_post_recvl [2021-11-17 03:27:15,723 INFO L130 BoogieDeclarations]: Found specification of procedure isert_conn_free_fastreg_pool [2021-11-17 03:27:15,723 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_conn_free_fastreg_pool [2021-11-17 03:27:15,723 INFO L130 BoogieDeclarations]: Found specification of procedure transport_send_check_condition_and_sense [2021-11-17 03:27:15,723 INFO L138 BoogieDeclarations]: Found implementation of procedure transport_send_check_condition_and_sense [2021-11-17 03:27:15,723 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-17 03:27:15,723 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-17 03:27:15,723 INFO L130 BoogieDeclarations]: Found specification of procedure isert_reg_sig_mr [2021-11-17 03:27:15,723 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_reg_sig_mr [2021-11-17 03:27:15,723 INFO L130 BoogieDeclarations]: Found specification of procedure transport_generic_free_cmd [2021-11-17 03:27:15,723 INFO L138 BoogieDeclarations]: Found implementation of procedure transport_generic_free_cmd [2021-11-17 03:27:15,723 INFO L130 BoogieDeclarations]: Found specification of procedure isert_unmap_tx_desc [2021-11-17 03:27:15,723 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_unmap_tx_desc [2021-11-17 03:27:15,723 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-17 03:27:15,723 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-17 03:27:15,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_device_list_mutex [2021-11-17 03:27:15,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_device_list_mutex [2021-11-17 03:27:15,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_device_list_mutex [2021-11-17 03:27:15,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_device_list_mutex [2021-11-17 03:27:15,724 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_weight [2021-11-17 03:27:15,724 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_weight [2021-11-17 03:27:15,724 INFO L130 BoogieDeclarations]: Found specification of procedure isert_handle_prot_cmd [2021-11-17 03:27:15,724 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_handle_prot_cmd [2021-11-17 03:27:15,724 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dereg_mr [2021-11-17 03:27:15,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dereg_mr [2021-11-17 03:27:15,724 INFO L130 BoogieDeclarations]: Found specification of procedure ib_req_notify_cq [2021-11-17 03:27:15,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_req_notify_cq [2021-11-17 03:27:15,724 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-17 03:27:15,724 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-17 03:27:15,724 INFO L130 BoogieDeclarations]: Found specification of procedure isert_check_pi_status [2021-11-17 03:27:15,724 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_check_pi_status [2021-11-17 03:27:15,724 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2021-11-17 03:27:15,724 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2021-11-17 03:27:15,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-17 03:27:15,724 INFO L130 BoogieDeclarations]: Found specification of procedure isert_create_send_desc [2021-11-17 03:27:15,724 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_create_send_desc [2021-11-17 03:27:15,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-17 03:27:15,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-17 03:27:15,725 INFO L130 BoogieDeclarations]: Found specification of procedure ib_sg_dma_len [2021-11-17 03:27:15,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_sg_dma_len [2021-11-17 03:27:15,725 INFO L130 BoogieDeclarations]: Found specification of procedure isert_fast_reg_mr [2021-11-17 03:27:15,725 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_fast_reg_mr [2021-11-17 03:27:15,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-11-17 03:27:15,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-11-17 03:27:15,725 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2021-11-17 03:27:15,725 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2021-11-17 03:27:15,725 INFO L130 BoogieDeclarations]: Found specification of procedure isert_post_response [2021-11-17 03:27:15,725 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_post_response [2021-11-17 03:27:15,725 INFO L130 BoogieDeclarations]: Found specification of procedure ib_alloc_fast_reg_mr [2021-11-17 03:27:15,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_alloc_fast_reg_mr [2021-11-17 03:27:15,725 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-11-17 03:27:15,725 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-11-17 03:27:15,725 INFO L130 BoogieDeclarations]: Found specification of procedure isert_rx_login_req [2021-11-17 03:27:15,725 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_rx_login_req [2021-11-17 03:27:15,725 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2021-11-17 03:27:15,726 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2021-11-17 03:27:15,726 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_mapping_error [2021-11-17 03:27:15,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_mapping_error [2021-11-17 03:27:15,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-17 03:27:15,726 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-17 03:27:15,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-17 03:27:15,726 INFO L130 BoogieDeclarations]: Found specification of procedure target_put_sess_cmd [2021-11-17 03:27:15,726 INFO L138 BoogieDeclarations]: Found implementation of procedure target_put_sess_cmd [2021-11-17 03:27:15,726 INFO L130 BoogieDeclarations]: Found specification of procedure isert_set_dif_domain [2021-11-17 03:27:15,726 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_set_dif_domain [2021-11-17 03:27:15,726 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2021-11-17 03:27:15,726 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2021-11-17 03:27:15,726 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dealloc_pd [2021-11-17 03:27:15,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dealloc_pd [2021-11-17 03:27:15,726 INFO L130 BoogieDeclarations]: Found specification of procedure ib_alloc_fast_reg_page_list [2021-11-17 03:27:15,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_alloc_fast_reg_page_list [2021-11-17 03:27:15,726 INFO L130 BoogieDeclarations]: Found specification of procedure iscsit_build_rsp_pdu [2021-11-17 03:27:15,726 INFO L138 BoogieDeclarations]: Found implementation of procedure iscsit_build_rsp_pdu [2021-11-17 03:27:16,528 INFO L236 CfgBuilder]: Building ICFG [2021-11-17 03:27:16,533 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-17 03:27:16,720 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-17 03:27:23,804 INFO L277 CfgBuilder]: Performing block encoding [2021-11-17 03:27:23,821 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-17 03:27:23,822 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-17 03:27:23,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 03:27:23 BoogieIcfgContainer [2021-11-17 03:27:23,824 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-17 03:27:23,826 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-17 03:27:23,826 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-17 03:27:23,828 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-17 03:27:23,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 03:27:11" (1/3) ... [2021-11-17 03:27:23,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ffc3293 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:27:23, skipping insertion in model container [2021-11-17 03:27:23,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:27:15" (2/3) ... [2021-11-17 03:27:23,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ffc3293 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:27:23, skipping insertion in model container [2021-11-17 03:27:23,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 03:27:23" (3/3) ... [2021-11-17 03:27:23,831 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 [2021-11-17 03:27:23,834 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-17 03:27:23,834 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-17 03:27:23,874 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-17 03:27:23,881 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 [2021-11-17 03:27:23,881 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-17 03:27:23,927 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) [2021-11-17 03:27:23,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-17 03:27:23,940 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:27:23,940 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] [2021-11-17 03:27:23,940 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:27:23,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:27:23,944 INFO L85 PathProgramCache]: Analyzing trace with hash 287510443, now seen corresponding path program 1 times [2021-11-17 03:27:23,949 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:27:23,950 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358143233] [2021-11-17 03:27:23,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:27:23,951 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:27:24,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:27:24,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:27:24,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:27:24,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:27:24,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:27:24,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:27:24,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:27:24,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-17 03:27:24,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:27:24,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:27:24,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:27:24,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-11-17 03:27:24,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:27:24,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:27:24,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:27:24,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-11-17 03:27:24,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:27:24,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:27:24,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:27:24,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-17 03:27:24,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:27:24,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:27:24,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:27:24,632 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-11-17 03:27:24,633 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:27:24,633 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358143233] [2021-11-17 03:27:24,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358143233] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:27:24,634 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:27:24,634 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 03:27:24,635 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65731100] [2021-11-17 03:27:24,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:27:24,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 03:27:24,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:27:24,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 03:27:24,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 03:27:24,664 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) [2021-11-17 03:27:26,701 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:27:29,156 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:27:32,918 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:27:35,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:27:35,918 INFO L93 Difference]: Finished difference Result 5414 states and 8111 transitions. [2021-11-17 03:27:35,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 03:27:35,920 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 [2021-11-17 03:27:35,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:27:35,952 INFO L225 Difference]: With dead ends: 5414 [2021-11-17 03:27:35,952 INFO L226 Difference]: Without dead ends: 3072 [2021-11-17 03:27:35,967 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 [2021-11-17 03:27:35,970 INFO L933 BasicCegarLoop]: 2949 mSDtfsCounter, 6770 mSDsluCounter, 1592 mSDsCounter, 0 mSdLazyCounter, 1601 mSolverCounterSat, 3790 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7107 SdHoareTripleChecker+Valid, 4541 SdHoareTripleChecker+Invalid, 5394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3790 IncrementalHoareTripleChecker+Valid, 1601 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2021-11-17 03:27:35,970 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7107 Valid, 4541 Invalid, 5394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3790 Valid, 1601 Invalid, 3 Unknown, 0 Unchecked, 10.9s Time] [2021-11-17 03:27:35,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3072 states. [2021-11-17 03:27:36,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3072 to 2314. [2021-11-17 03:27:36,152 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) [2021-11-17 03:27:36,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2314 states to 2314 states and 3252 transitions. [2021-11-17 03:27:36,168 INFO L78 Accepts]: Start accepts. Automaton has 2314 states and 3252 transitions. Word has length 82 [2021-11-17 03:27:36,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:27:36,170 INFO L470 AbstractCegarLoop]: Abstraction has 2314 states and 3252 transitions. [2021-11-17 03:27:36,170 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) [2021-11-17 03:27:36,170 INFO L276 IsEmpty]: Start isEmpty. Operand 2314 states and 3252 transitions. [2021-11-17 03:27:36,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-17 03:27:36,174 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:27:36,175 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] [2021-11-17 03:27:36,175 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-17 03:27:36,175 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:27:36,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:27:36,176 INFO L85 PathProgramCache]: Analyzing trace with hash 321914562, now seen corresponding path program 1 times [2021-11-17 03:27:36,176 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:27:36,176 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144604997] [2021-11-17 03:27:36,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:27:36,176 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:27:36,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:27:36,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:27:36,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:27:36,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:27:36,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:27:36,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:27:36,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:27:36,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-17 03:27:36,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:27:36,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:27:36,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:27:36,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-11-17 03:27:36,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:27:36,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:27:36,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:27:36,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-11-17 03:27:36,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:27:36,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:27:36,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:27:36,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-17 03:27:36,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:27:36,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:27:36,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:27:36,438 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-11-17 03:27:36,438 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:27:36,438 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144604997] [2021-11-17 03:27:36,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144604997] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:27:36,439 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:27:36,439 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 03:27:36,439 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528233344] [2021-11-17 03:27:36,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:27:36,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 03:27:36,440 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:27:36,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 03:27:36,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 03:27:36,441 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) [2021-11-17 03:27:39,533 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:27:41,860 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:27:43,893 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:27:50,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:27:50,542 INFO L93 Difference]: Finished difference Result 3072 states and 4573 transitions. [2021-11-17 03:27:50,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 03:27:50,542 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 [2021-11-17 03:27:50,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:27:50,559 INFO L225 Difference]: With dead ends: 3072 [2021-11-17 03:27:50,559 INFO L226 Difference]: Without dead ends: 3069 [2021-11-17 03:27:50,562 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 [2021-11-17 03:27:50,563 INFO L933 BasicCegarLoop]: 2909 mSDtfsCounter, 5397 mSDsluCounter, 3829 mSDsCounter, 0 mSdLazyCounter, 3114 mSolverCounterSat, 2688 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5739 SdHoareTripleChecker+Valid, 6738 SdHoareTripleChecker+Invalid, 5805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2688 IncrementalHoareTripleChecker+Valid, 3114 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time [2021-11-17 03:27:50,565 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5739 Valid, 6738 Invalid, 5805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2688 Valid, 3114 Invalid, 3 Unknown, 0 Unchecked, 13.9s Time] [2021-11-17 03:27:50,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3069 states. [2021-11-17 03:27:50,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3069 to 2313. [2021-11-17 03:27:50,663 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) [2021-11-17 03:27:50,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2313 states to 2313 states and 3250 transitions. [2021-11-17 03:27:50,673 INFO L78 Accepts]: Start accepts. Automaton has 2313 states and 3250 transitions. Word has length 83 [2021-11-17 03:27:50,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:27:50,673 INFO L470 AbstractCegarLoop]: Abstraction has 2313 states and 3250 transitions. [2021-11-17 03:27:50,674 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) [2021-11-17 03:27:50,674 INFO L276 IsEmpty]: Start isEmpty. Operand 2313 states and 3250 transitions. [2021-11-17 03:27:50,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-17 03:27:50,675 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:27:50,675 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] [2021-11-17 03:27:50,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-17 03:27:50,676 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:27:50,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:27:50,676 INFO L85 PathProgramCache]: Analyzing trace with hash 1388447118, now seen corresponding path program 1 times [2021-11-17 03:27:50,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:27:50,676 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518826657] [2021-11-17 03:27:50,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:27:50,677 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:27:50,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:27:50,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:27:50,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:27:50,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:27:50,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:27:50,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:27:50,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:27:50,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-17 03:27:50,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:27:50,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:27:50,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:27:50,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-11-17 03:27:50,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:27:50,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:27:50,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:27:51,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-11-17 03:27:51,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:27:51,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:27:51,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:27:51,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-17 03:27:51,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:27:51,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:27:51,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:27:51,067 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-11-17 03:27:51,067 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:27:51,068 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518826657] [2021-11-17 03:27:51,068 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518826657] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:27:51,068 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:27:51,068 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 03:27:51,068 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698377583] [2021-11-17 03:27:51,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:27:51,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 03:27:51,070 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:27:51,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 03:27:51,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 03:27:51,070 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) [2021-11-17 03:27:53,089 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:27:55,420 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:28:01,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:28:01,100 INFO L93 Difference]: Finished difference Result 3071 states and 4571 transitions. [2021-11-17 03:28:01,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 03:28:01,101 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 [2021-11-17 03:28:01,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:28:01,112 INFO L225 Difference]: With dead ends: 3071 [2021-11-17 03:28:01,113 INFO L226 Difference]: Without dead ends: 3068 [2021-11-17 03:28:01,114 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 [2021-11-17 03:28:01,117 INFO L933 BasicCegarLoop]: 2900 mSDtfsCounter, 5779 mSDsluCounter, 2632 mSDsCounter, 0 mSdLazyCounter, 2324 mSolverCounterSat, 2856 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6120 SdHoareTripleChecker+Valid, 5532 SdHoareTripleChecker+Invalid, 5182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2856 IncrementalHoareTripleChecker+Valid, 2324 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2021-11-17 03:28:01,118 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6120 Valid, 5532 Invalid, 5182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2856 Valid, 2324 Invalid, 2 Unknown, 0 Unchecked, 9.8s Time] [2021-11-17 03:28:01,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3068 states. [2021-11-17 03:28:01,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3068 to 2312. [2021-11-17 03:28:01,184 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) [2021-11-17 03:28:01,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2312 states to 2312 states and 3248 transitions. [2021-11-17 03:28:01,191 INFO L78 Accepts]: Start accepts. Automaton has 2312 states and 3248 transitions. Word has length 84 [2021-11-17 03:28:01,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:28:01,192 INFO L470 AbstractCegarLoop]: Abstraction has 2312 states and 3248 transitions. [2021-11-17 03:28:01,192 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) [2021-11-17 03:28:01,192 INFO L276 IsEmpty]: Start isEmpty. Operand 2312 states and 3248 transitions. [2021-11-17 03:28:01,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-17 03:28:01,194 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:28:01,194 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] [2021-11-17 03:28:01,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-17 03:28:01,195 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:28:01,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:28:01,196 INFO L85 PathProgramCache]: Analyzing trace with hash 1031885892, now seen corresponding path program 1 times [2021-11-17 03:28:01,196 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:28:01,196 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563111068] [2021-11-17 03:28:01,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:28:01,197 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:28:01,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:28:01,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:28:01,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:28:01,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:28:01,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:28:01,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:28:01,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:28:01,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-17 03:28:01,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:28:01,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:28:01,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:28:01,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-11-17 03:28:01,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:28:01,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:28:01,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:28:01,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-11-17 03:28:01,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:28:01,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:28:01,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:28:01,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-17 03:28:01,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:28:01,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:28:01,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:28:01,395 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-11-17 03:28:01,395 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:28:01,395 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563111068] [2021-11-17 03:28:01,395 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563111068] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:28:01,396 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:28:01,396 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 03:28:01,396 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630813295] [2021-11-17 03:28:01,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:28:01,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 03:28:01,397 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:28:01,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 03:28:01,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 03:28:01,398 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) [2021-11-17 03:28:05,610 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:28:09,104 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:28:14,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:28:14,936 INFO L93 Difference]: Finished difference Result 7923 states and 11566 transitions. [2021-11-17 03:28:14,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 03:28:14,937 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), 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) Word has length 86 [2021-11-17 03:28:14,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:28:14,958 INFO L225 Difference]: With dead ends: 7923 [2021-11-17 03:28:14,959 INFO L226 Difference]: Without dead ends: 5632 [2021-11-17 03:28:14,967 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-17 03:28:14,969 INFO L933 BasicCegarLoop]: 3287 mSDtfsCounter, 9370 mSDsluCounter, 4057 mSDsCounter, 0 mSdLazyCounter, 3372 mSolverCounterSat, 6180 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9681 SdHoareTripleChecker+Valid, 7344 SdHoareTripleChecker+Invalid, 9554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6180 IncrementalHoareTripleChecker+Valid, 3372 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2021-11-17 03:28:14,970 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9681 Valid, 7344 Invalid, 9554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6180 Valid, 3372 Invalid, 2 Unknown, 0 Unchecked, 13.1s Time] [2021-11-17 03:28:14,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5632 states. [2021-11-17 03:28:15,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5632 to 4126. [2021-11-17 03:28:15,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4126 states, 2862 states have (on average 1.3095737246680643) internal successors, (3748), 2950 states have internal predecessors, (3748), 1002 states have call successors, (1002), 262 states have call predecessors, (1002), 261 states have return successors, (994), 971 states have call predecessors, (994), 994 states have call successors, (994) [2021-11-17 03:28:15,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4126 states to 4126 states and 5744 transitions. [2021-11-17 03:28:15,112 INFO L78 Accepts]: Start accepts. Automaton has 4126 states and 5744 transitions. Word has length 86 [2021-11-17 03:28:15,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:28:15,113 INFO L470 AbstractCegarLoop]: Abstraction has 4126 states and 5744 transitions. [2021-11-17 03:28:15,113 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), 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) [2021-11-17 03:28:15,113 INFO L276 IsEmpty]: Start isEmpty. Operand 4126 states and 5744 transitions. [2021-11-17 03:28:15,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-17 03:28:15,115 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:28:15,115 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, 1] [2021-11-17 03:28:15,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-17 03:28:15,116 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:28:15,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:28:15,116 INFO L85 PathProgramCache]: Analyzing trace with hash 91222853, now seen corresponding path program 1 times [2021-11-17 03:28:15,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:28:15,116 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933196394] [2021-11-17 03:28:15,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:28:15,117 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:28:15,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:28:15,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:28:15,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:28:15,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:28:15,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:28:15,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:28:15,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:28:15,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-17 03:28:15,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:28:15,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:28:15,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:28:15,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-11-17 03:28:15,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:28:15,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:28:15,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:28:15,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-11-17 03:28:15,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:28:15,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:28:15,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:28:15,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-17 03:28:15,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:28:15,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:28:15,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:28:15,354 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-11-17 03:28:15,354 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:28:15,354 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933196394] [2021-11-17 03:28:15,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933196394] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:28:15,355 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:28:15,355 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 03:28:15,355 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558364122] [2021-11-17 03:28:15,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:28:15,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 03:28:15,357 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:28:15,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 03:28:15,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 03:28:15,357 INFO L87 Difference]: Start difference. First operand 4126 states and 5744 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 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) [2021-11-17 03:28:17,388 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:28:19,448 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:28:24,024 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:28:26,059 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:28:31,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:28:31,367 INFO L93 Difference]: Finished difference Result 5614 states and 8322 transitions. [2021-11-17 03:28:31,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 03:28:31,368 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 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 85 [2021-11-17 03:28:31,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:28:31,414 INFO L225 Difference]: With dead ends: 5614 [2021-11-17 03:28:31,427 INFO L226 Difference]: Without dead ends: 5611 [2021-11-17 03:28:31,430 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 [2021-11-17 03:28:31,430 INFO L933 BasicCegarLoop]: 2892 mSDtfsCounter, 5389 mSDsluCounter, 2752 mSDsCounter, 0 mSdLazyCounter, 2319 mSolverCounterSat, 2692 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5728 SdHoareTripleChecker+Valid, 5644 SdHoareTripleChecker+Invalid, 5015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2692 IncrementalHoareTripleChecker+Valid, 2319 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time [2021-11-17 03:28:31,430 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5728 Valid, 5644 Invalid, 5015 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2692 Valid, 2319 Invalid, 4 Unknown, 0 Unchecked, 15.7s Time] [2021-11-17 03:28:31,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5611 states. [2021-11-17 03:28:31,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5611 to 4125. [2021-11-17 03:28:31,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4125 states, 2862 states have (on average 1.3092243186582808) internal successors, (3747), 2949 states have internal predecessors, (3747), 1001 states have call successors, (1001), 262 states have call predecessors, (1001), 261 states have return successors, (994), 971 states have call predecessors, (994), 994 states have call successors, (994) [2021-11-17 03:28:31,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4125 states to 4125 states and 5742 transitions. [2021-11-17 03:28:31,699 INFO L78 Accepts]: Start accepts. Automaton has 4125 states and 5742 transitions. Word has length 85 [2021-11-17 03:28:31,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:28:31,700 INFO L470 AbstractCegarLoop]: Abstraction has 4125 states and 5742 transitions. [2021-11-17 03:28:31,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 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) [2021-11-17 03:28:31,701 INFO L276 IsEmpty]: Start isEmpty. Operand 4125 states and 5742 transitions. [2021-11-17 03:28:31,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-17 03:28:31,704 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:28:31,705 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] [2021-11-17 03:28:31,705 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-17 03:28:31,705 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:28:31,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:28:31,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1468018831, now seen corresponding path program 1 times [2021-11-17 03:28:31,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:28:31,706 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020918403] [2021-11-17 03:28:31,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:28:31,706 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:28:31,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:28:31,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:28:31,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:28:31,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:28:31,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:28:31,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:28:31,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:28:31,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-17 03:28:31,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:28:31,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:28:31,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:28:31,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-11-17 03:28:31,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:28:31,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:28:31,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:28:31,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-11-17 03:28:31,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:28:31,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:28:31,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:28:31,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-17 03:28:31,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:28:31,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:28:31,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:28:31,954 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-11-17 03:28:31,954 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:28:31,954 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020918403] [2021-11-17 03:28:31,954 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020918403] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:28:31,954 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:28:31,955 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 03:28:31,955 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732948511] [2021-11-17 03:28:31,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:28:31,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 03:28:31,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:28:31,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 03:28:31,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 03:28:31,956 INFO L87 Difference]: Start difference. First operand 4125 states and 5742 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 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) [2021-11-17 03:28:35,514 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:28:38,586 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:28:43,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:28:43,280 INFO L93 Difference]: Finished difference Result 5633 states and 8333 transitions. [2021-11-17 03:28:43,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 03:28:43,280 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 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 86 [2021-11-17 03:28:43,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:28:43,314 INFO L225 Difference]: With dead ends: 5633 [2021-11-17 03:28:43,314 INFO L226 Difference]: Without dead ends: 5629 [2021-11-17 03:28:43,316 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-17 03:28:43,317 INFO L933 BasicCegarLoop]: 2894 mSDtfsCounter, 5337 mSDsluCounter, 2781 mSDsCounter, 0 mSdLazyCounter, 2354 mSolverCounterSat, 2693 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5655 SdHoareTripleChecker+Valid, 5675 SdHoareTripleChecker+Invalid, 5049 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2693 IncrementalHoareTripleChecker+Valid, 2354 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2021-11-17 03:28:43,318 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5655 Valid, 5675 Invalid, 5049 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2693 Valid, 2354 Invalid, 2 Unknown, 0 Unchecked, 11.0s Time] [2021-11-17 03:28:43,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5629 states. [2021-11-17 03:28:43,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5629 to 4141. [2021-11-17 03:28:43,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4141 states, 2874 states have (on average 1.3068893528183716) internal successors, (3756), 2959 states have internal predecessors, (3756), 999 states have call successors, (999), 268 states have call predecessors, (999), 267 states have return successors, (994), 971 states have call predecessors, (994), 994 states have call successors, (994) [2021-11-17 03:28:43,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4141 states to 4141 states and 5749 transitions. [2021-11-17 03:28:43,471 INFO L78 Accepts]: Start accepts. Automaton has 4141 states and 5749 transitions. Word has length 86 [2021-11-17 03:28:43,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:28:43,471 INFO L470 AbstractCegarLoop]: Abstraction has 4141 states and 5749 transitions. [2021-11-17 03:28:43,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 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) [2021-11-17 03:28:43,472 INFO L276 IsEmpty]: Start isEmpty. Operand 4141 states and 5749 transitions. [2021-11-17 03:28:43,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-17 03:28:43,473 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:28:43,473 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, 1] [2021-11-17 03:28:43,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-17 03:28:43,474 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:28:43,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:28:43,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1735101384, now seen corresponding path program 1 times [2021-11-17 03:28:43,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:28:43,474 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350582108] [2021-11-17 03:28:43,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:28:43,475 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:28:43,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:28:43,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:28:43,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:28:43,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:28:43,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:28:43,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:28:43,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:28:43,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-17 03:28:43,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:28:43,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:28:43,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:28:43,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-11-17 03:28:43,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:28:43,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:28:43,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:28:43,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-11-17 03:28:43,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:28:43,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:28:43,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:28:43,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-17 03:28:43,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:28:43,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:28:43,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:28:43,732 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-11-17 03:28:43,732 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:28:43,732 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350582108] [2021-11-17 03:28:43,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350582108] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:28:43,733 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:28:43,733 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 03:28:43,733 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631937968] [2021-11-17 03:28:43,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:28:43,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 03:28:43,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:28:43,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 03:28:43,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 03:28:43,734 INFO L87 Difference]: Start difference. First operand 4141 states and 5749 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 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) [2021-11-17 03:28:45,755 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:28:47,668 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:28:49,733 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:28:54,379 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:28:56,418 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:29:03,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:29:03,781 INFO L93 Difference]: Finished difference Result 6160 states and 9006 transitions. [2021-11-17 03:29:03,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 03:29:03,781 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 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 87 [2021-11-17 03:29:03,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:29:03,822 INFO L225 Difference]: With dead ends: 6160 [2021-11-17 03:29:03,823 INFO L226 Difference]: Without dead ends: 6140 [2021-11-17 03:29:03,830 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-17 03:29:03,831 INFO L933 BasicCegarLoop]: 2957 mSDtfsCounter, 5535 mSDsluCounter, 3994 mSDsCounter, 0 mSdLazyCounter, 3483 mSolverCounterSat, 2793 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5881 SdHoareTripleChecker+Valid, 6951 SdHoareTripleChecker+Invalid, 6280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2793 IncrementalHoareTripleChecker+Valid, 3483 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.7s IncrementalHoareTripleChecker+Time [2021-11-17 03:29:03,831 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5881 Valid, 6951 Invalid, 6280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2793 Valid, 3483 Invalid, 4 Unknown, 0 Unchecked, 19.7s Time] [2021-11-17 03:29:03,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6140 states. [2021-11-17 03:29:04,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6140 to 4551. [2021-11-17 03:29:04,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4551 states, 3145 states have (on average 1.2960254372019078) internal successors, (4076), 3235 states have internal predecessors, (4076), 1084 states have call successors, (1084), 322 states have call predecessors, (1084), 321 states have return successors, (1079), 1057 states have call predecessors, (1079), 1079 states have call successors, (1079) [2021-11-17 03:29:04,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4551 states to 4551 states and 6239 transitions. [2021-11-17 03:29:04,102 INFO L78 Accepts]: Start accepts. Automaton has 4551 states and 6239 transitions. Word has length 87 [2021-11-17 03:29:04,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:29:04,102 INFO L470 AbstractCegarLoop]: Abstraction has 4551 states and 6239 transitions. [2021-11-17 03:29:04,103 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 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) [2021-11-17 03:29:04,103 INFO L276 IsEmpty]: Start isEmpty. Operand 4551 states and 6239 transitions. [2021-11-17 03:29:04,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-17 03:29:04,104 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:29:04,105 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 03:29:04,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-17 03:29:04,105 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:29:04,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:29:04,106 INFO L85 PathProgramCache]: Analyzing trace with hash 2006590099, now seen corresponding path program 1 times [2021-11-17 03:29:04,106 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:29:04,106 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431321571] [2021-11-17 03:29:04,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:29:04,106 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:29:04,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:29:04,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:29:04,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:29:04,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:29:04,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:29:04,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:29:04,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:29:04,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-17 03:29:04,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:29:04,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:29:04,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:29:04,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-11-17 03:29:04,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:29:04,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:29:04,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:29:04,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-11-17 03:29:04,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:29:04,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:29:04,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:29:04,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-17 03:29:04,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:29:04,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:29:04,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:29:04,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 03:29:04,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:29:04,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-17 03:29:04,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:29:04,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-11-17 03:29:04,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:29:04,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-17 03:29:04,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:29:04,384 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-11-17 03:29:04,384 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:29:04,384 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431321571] [2021-11-17 03:29:04,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431321571] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:29:04,384 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:29:04,384 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 03:29:04,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986599802] [2021-11-17 03:29:04,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:29:04,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 03:29:04,385 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:29:04,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 03:29:04,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-17 03:29:04,386 INFO L87 Difference]: Start difference. First operand 4551 states and 6239 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (15), 7 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-17 03:29:06,141 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:29:13,159 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:29:19,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:29:19,129 INFO L93 Difference]: Finished difference Result 6765 states and 10048 transitions. [2021-11-17 03:29:19,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-17 03:29:19,130 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (15), 7 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 106 [2021-11-17 03:29:19,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:29:19,165 INFO L225 Difference]: With dead ends: 6765 [2021-11-17 03:29:19,165 INFO L226 Difference]: Without dead ends: 6744 [2021-11-17 03:29:19,174 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2021-11-17 03:29:19,175 INFO L933 BasicCegarLoop]: 2706 mSDtfsCounter, 5574 mSDsluCounter, 2841 mSDsCounter, 0 mSdLazyCounter, 5233 mSolverCounterSat, 4555 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5854 SdHoareTripleChecker+Valid, 5547 SdHoareTripleChecker+Invalid, 9789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4555 IncrementalHoareTripleChecker+Valid, 5233 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.3s IncrementalHoareTripleChecker+Time [2021-11-17 03:29:19,176 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5854 Valid, 5547 Invalid, 9789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4555 Valid, 5233 Invalid, 1 Unknown, 0 Unchecked, 14.3s Time] [2021-11-17 03:29:19,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6744 states. [2021-11-17 03:29:19,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6744 to 4532. [2021-11-17 03:29:19,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4532 states, 3137 states have (on average 1.2955052598023589) internal successors, (4064), 3224 states have internal predecessors, (4064), 1073 states have call successors, (1073), 322 states have call predecessors, (1073), 321 states have return successors, (1071), 1049 states have call predecessors, (1071), 1071 states have call successors, (1071) [2021-11-17 03:29:19,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4532 states to 4532 states and 6208 transitions. [2021-11-17 03:29:19,449 INFO L78 Accepts]: Start accepts. Automaton has 4532 states and 6208 transitions. Word has length 106 [2021-11-17 03:29:19,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:29:19,449 INFO L470 AbstractCegarLoop]: Abstraction has 4532 states and 6208 transitions. [2021-11-17 03:29:19,450 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (15), 7 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-17 03:29:19,450 INFO L276 IsEmpty]: Start isEmpty. Operand 4532 states and 6208 transitions. [2021-11-17 03:29:19,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-11-17 03:29:19,458 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:29:19,458 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-11-17 03:29:19,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-17 03:29:19,459 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:29:19,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:29:19,459 INFO L85 PathProgramCache]: Analyzing trace with hash 241238199, now seen corresponding path program 1 times [2021-11-17 03:29:19,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:29:19,459 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140342515] [2021-11-17 03:29:19,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:29:19,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:29:19,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:29:19,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:29:19,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:29:19,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:29:19,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:29:19,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:29:19,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:29:19,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-17 03:29:19,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:29:19,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:29:19,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:29:19,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-11-17 03:29:19,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:29:19,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:29:19,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:29:19,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-11-17 03:29:19,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:29:19,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:29:19,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:29:19,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-17 03:29:19,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:29:19,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:29:19,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:29:19,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-11-17 03:29:19,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:29:19,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-11-17 03:29:19,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:29:19,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-17 03:29:19,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:29:19,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-11-17 03:29:19,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:29:19,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-17 03:29:19,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:29:19,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-11-17 03:29:19,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:29:19,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 03:29:19,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:29:19,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 03:29:19,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:29:19,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-17 03:29:19,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:29:19,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-11-17 03:29:19,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:29:19,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-17 03:29:19,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:29:19,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-17 03:29:19,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:29:19,868 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-11-17 03:29:19,868 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:29:19,868 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140342515] [2021-11-17 03:29:19,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140342515] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:29:19,868 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:29:19,868 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-17 03:29:19,869 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939990564] [2021-11-17 03:29:19,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:29:19,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 03:29:19,870 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:29:19,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 03:29:19,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-17 03:29:19,871 INFO L87 Difference]: Start difference. First operand 4532 states and 6208 transitions. Second operand has 8 states, 8 states have (on average 10.875) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (28), 8 states have call predecessors, (28), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-17 03:29:21,568 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:29:23,620 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:29:25,678 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:29:27,735 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:29:33,856 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:29:41,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:29:41,513 INFO L93 Difference]: Finished difference Result 6805 states and 10077 transitions. [2021-11-17 03:29:41,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-17 03:29:41,514 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (28), 8 states have call predecessors, (28), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 167 [2021-11-17 03:29:41,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:29:41,547 INFO L225 Difference]: With dead ends: 6805 [2021-11-17 03:29:41,548 INFO L226 Difference]: Without dead ends: 6802 [2021-11-17 03:29:41,553 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2021-11-17 03:29:41,554 INFO L933 BasicCegarLoop]: 2742 mSDtfsCounter, 8214 mSDsluCounter, 2241 mSDsCounter, 0 mSdLazyCounter, 6810 mSolverCounterSat, 6803 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8327 SdHoareTripleChecker+Valid, 4983 SdHoareTripleChecker+Invalid, 13617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6803 IncrementalHoareTripleChecker+Valid, 6810 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.0s IncrementalHoareTripleChecker+Time [2021-11-17 03:29:41,554 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8327 Valid, 4983 Invalid, 13617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6803 Valid, 6810 Invalid, 4 Unknown, 0 Unchecked, 21.0s Time] [2021-11-17 03:29:41,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6802 states. [2021-11-17 03:29:41,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6802 to 4531. [2021-11-17 03:29:41,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4531 states, 3137 states have (on average 1.2948677080012752) internal successors, (4062), 3223 states have internal predecessors, (4062), 1072 states have call successors, (1072), 322 states have call predecessors, (1072), 321 states have return successors, (1071), 1049 states have call predecessors, (1071), 1071 states have call successors, (1071) [2021-11-17 03:29:41,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4531 states to 4531 states and 6205 transitions. [2021-11-17 03:29:41,777 INFO L78 Accepts]: Start accepts. Automaton has 4531 states and 6205 transitions. Word has length 167 [2021-11-17 03:29:41,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:29:41,777 INFO L470 AbstractCegarLoop]: Abstraction has 4531 states and 6205 transitions. [2021-11-17 03:29:41,777 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (28), 8 states have call predecessors, (28), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-17 03:29:41,778 INFO L276 IsEmpty]: Start isEmpty. Operand 4531 states and 6205 transitions. [2021-11-17 03:29:41,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2021-11-17 03:29:41,793 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:29:41,794 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-11-17 03:29:41,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-17 03:29:41,794 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:29:41,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:29:41,795 INFO L85 PathProgramCache]: Analyzing trace with hash 475005978, now seen corresponding path program 1 times [2021-11-17 03:29:41,795 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:29:41,795 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622163622] [2021-11-17 03:29:41,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:29:41,795 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:29:41,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:29:42,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:29:42,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:29:42,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:29:42,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:29:42,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:29:42,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:29:42,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-17 03:29:42,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:29:42,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:29:42,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:29:42,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-11-17 03:29:42,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:29:42,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:29:42,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:29:42,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-11-17 03:29:42,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:29:42,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:29:42,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:29:42,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-17 03:29:42,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:29:42,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:29:42,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:29:42,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 03:29:42,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:29:42,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-17 03:29:42,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:29:42,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 03:29:42,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:29:42,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-17 03:29:42,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:29:42,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 03:29:42,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:29:42,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-11-17 03:29:42,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:29:42,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 03:29:42,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:29:42,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-11-17 03:29:42,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:29:42,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-11-17 03:29:42,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:29:42,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-11-17 03:29:42,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:29:42,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 03:29:42,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:29:42,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-17 03:29:42,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:29:42,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2021-11-17 03:29:42,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:29:42,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 03:29:42,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:29:42,525 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-11-17 03:29:42,525 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:29:42,525 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622163622] [2021-11-17 03:29:42,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622163622] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 03:29:42,526 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1658079105] [2021-11-17 03:29:42,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:29:42,526 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 03:29:42,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 03:29:42,528 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 03:29:42,566 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-17 03:29:43,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:29:43,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 3104 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-17 03:29:43,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 03:29:43,772 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2021-11-17 03:29:43,772 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 03:29:43,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1658079105] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:29:43,772 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-17 03:29:43,772 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [13] total 14 [2021-11-17 03:29:43,773 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369493510] [2021-11-17 03:29:43,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:29:43,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-17 03:29:43,773 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:29:43,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-17 03:29:43,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2021-11-17 03:29:43,774 INFO L87 Difference]: Start difference. First operand 4531 states and 6205 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-17 03:29:45,222 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:29:45,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:29:45,401 INFO L93 Difference]: Finished difference Result 4531 states and 6205 transitions. [2021-11-17 03:29:45,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-17 03:29:45,401 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 190 [2021-11-17 03:29:45,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:29:45,403 INFO L225 Difference]: With dead ends: 4531 [2021-11-17 03:29:45,403 INFO L226 Difference]: Without dead ends: 0 [2021-11-17 03:29:45,430 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2021-11-17 03:29:45,435 INFO L933 BasicCegarLoop]: 3200 mSDtfsCounter, 68 mSDsluCounter, 3120 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 6320 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-17 03:29:45,438 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 6320 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-17 03:29:45,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-17 03:29:45,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-17 03:29:45,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-11-17 03:29:45,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-17 03:29:45,440 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 190 [2021-11-17 03:29:45,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:29:45,441 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-17 03:29:45,441 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-17 03:29:45,441 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-17 03:29:45,441 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-17 03:29:45,445 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-17 03:29:45,487 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-17 03:29:45,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-17 03:29:45,667 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-17 03:29:56,864 WARN L227 SmtUtils]: Spent 11.18s on a formula simplification. DAG size of input: 67 DAG size of output: 64 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 03:30:07,322 WARN L227 SmtUtils]: Spent 10.46s on a formula simplification. DAG size of input: 71 DAG size of output: 68 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 03:30:17,460 WARN L227 SmtUtils]: Spent 10.14s on a formula simplification. DAG size of input: 71 DAG size of output: 68 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 03:30:28,005 WARN L227 SmtUtils]: Spent 10.54s on a formula simplification. DAG size of input: 71 DAG size of output: 68 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 03:30:38,571 WARN L227 SmtUtils]: Spent 10.56s on a formula simplification. DAG size of input: 71 DAG size of output: 68 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 03:30:48,868 WARN L227 SmtUtils]: Spent 10.30s on a formula simplification. DAG size of input: 71 DAG size of output: 68 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 03:30:59,127 WARN L227 SmtUtils]: Spent 10.26s on a formula simplification. DAG size of input: 71 DAG size of output: 68 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 03:31:09,805 WARN L227 SmtUtils]: Spent 10.68s on a formula simplification. DAG size of input: 67 DAG size of output: 64 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 03:31:20,325 WARN L227 SmtUtils]: Spent 10.51s on a formula simplification. DAG size of input: 71 DAG size of output: 68 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 03:31:31,507 WARN L227 SmtUtils]: Spent 11.18s on a formula simplification. DAG size of input: 67 DAG size of output: 64 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 03:31:41,729 WARN L227 SmtUtils]: Spent 10.22s on a formula simplification. DAG size of input: 71 DAG size of output: 68 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 03:31:52,703 WARN L227 SmtUtils]: Spent 10.97s on a formula simplification. DAG size of input: 67 DAG size of output: 64 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 03:32:03,603 WARN L227 SmtUtils]: Spent 10.90s on a formula simplification. DAG size of input: 67 DAG size of output: 64 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 03:32:14,710 WARN L227 SmtUtils]: Spent 11.11s on a formula simplification. DAG size of input: 67 DAG size of output: 64 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 03:32:25,714 WARN L227 SmtUtils]: Spent 11.00s on a formula simplification. DAG size of input: 67 DAG size of output: 64 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 03:32:36,689 WARN L227 SmtUtils]: Spent 10.97s on a formula simplification. DAG size of input: 67 DAG size of output: 64 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 03:32:46,903 WARN L227 SmtUtils]: Spent 10.21s on a formula simplification. DAG size of input: 71 DAG size of output: 68 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 03:32:57,540 WARN L227 SmtUtils]: Spent 10.64s on a formula simplification. DAG size of input: 67 DAG size of output: 64 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 03:33:05,567 WARN L227 SmtUtils]: Spent 6.03s on a formula simplification. DAG size of input: 70 DAG size of output: 67 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 03:33:11,502 WARN L227 SmtUtils]: Spent 5.93s on a formula simplification. DAG size of input: 66 DAG size of output: 63 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 03:33:17,248 WARN L227 SmtUtils]: Spent 5.75s on a formula simplification. DAG size of input: 70 DAG size of output: 67 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 03:33:23,429 WARN L227 SmtUtils]: Spent 6.18s on a formula simplification. DAG size of input: 66 DAG size of output: 63 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 03:33:41,040 WARN L227 SmtUtils]: Spent 10.85s on a formula simplification. DAG size of input: 67 DAG size of output: 64 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 03:33:51,492 WARN L227 SmtUtils]: Spent 10.45s on a formula simplification. DAG size of input: 71 DAG size of output: 68 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 03:34:01,986 WARN L227 SmtUtils]: Spent 10.49s on a formula simplification. DAG size of input: 71 DAG size of output: 68 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 03:34:12,531 WARN L227 SmtUtils]: Spent 10.54s on a formula simplification. DAG size of input: 71 DAG size of output: 68 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 03:34:23,139 WARN L227 SmtUtils]: Spent 10.61s on a formula simplification. DAG size of input: 71 DAG size of output: 68 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 03:34:33,753 WARN L227 SmtUtils]: Spent 10.61s on a formula simplification. DAG size of input: 71 DAG size of output: 68 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 03:34:43,935 WARN L227 SmtUtils]: Spent 10.18s on a formula simplification. DAG size of input: 71 DAG size of output: 68 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 03:34:54,872 WARN L227 SmtUtils]: Spent 10.94s on a formula simplification. DAG size of input: 67 DAG size of output: 64 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 03:35:05,621 WARN L227 SmtUtils]: Spent 10.75s on a formula simplification. DAG size of input: 71 DAG size of output: 68 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 03:35:16,733 WARN L227 SmtUtils]: Spent 11.10s on a formula simplification. DAG size of input: 67 DAG size of output: 64 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 03:35:27,196 WARN L227 SmtUtils]: Spent 10.46s on a formula simplification. DAG size of input: 71 DAG size of output: 68 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 03:35:37,877 WARN L227 SmtUtils]: Spent 10.68s on a formula simplification. DAG size of input: 67 DAG size of output: 64 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 03:35:48,919 WARN L227 SmtUtils]: Spent 11.04s on a formula simplification. DAG size of input: 67 DAG size of output: 64 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 03:35:59,884 WARN L227 SmtUtils]: Spent 10.96s on a formula simplification. DAG size of input: 67 DAG size of output: 64 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 03:36:10,841 WARN L227 SmtUtils]: Spent 10.96s on a formula simplification. DAG size of input: 67 DAG size of output: 64 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 03:36:21,831 WARN L227 SmtUtils]: Spent 10.99s on a formula simplification. DAG size of input: 67 DAG size of output: 64 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 03:36:32,364 WARN L227 SmtUtils]: Spent 10.53s on a formula simplification. DAG size of input: 71 DAG size of output: 68 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 03:36:43,371 WARN L227 SmtUtils]: Spent 11.01s on a formula simplification. DAG size of input: 67 DAG size of output: 64 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 03:37:03,001 WARN L227 SmtUtils]: Spent 10.89s on a formula simplification. DAG size of input: 67 DAG size of output: 64 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 03:37:13,585 WARN L227 SmtUtils]: Spent 10.58s on a formula simplification. DAG size of input: 71 DAG size of output: 68 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 03:37:24,349 WARN L227 SmtUtils]: Spent 10.76s on a formula simplification. DAG size of input: 71 DAG size of output: 68 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 03:37:34,514 WARN L227 SmtUtils]: Spent 10.16s on a formula simplification. DAG size of input: 71 DAG size of output: 68 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 03:37:45,122 WARN L227 SmtUtils]: Spent 10.61s on a formula simplification. DAG size of input: 71 DAG size of output: 68 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 03:37:55,571 WARN L227 SmtUtils]: Spent 10.45s on a formula simplification. DAG size of input: 71 DAG size of output: 68 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 03:38:06,240 WARN L227 SmtUtils]: Spent 10.67s on a formula simplification. DAG size of input: 71 DAG size of output: 68 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 03:38:17,258 WARN L227 SmtUtils]: Spent 11.02s on a formula simplification. DAG size of input: 67 DAG size of output: 64 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 03:38:27,833 WARN L227 SmtUtils]: Spent 10.57s on a formula simplification. DAG size of input: 71 DAG size of output: 68 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 03:38:39,191 WARN L227 SmtUtils]: Spent 11.36s on a formula simplification. DAG size of input: 67 DAG size of output: 64 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 03:38:49,713 WARN L227 SmtUtils]: Spent 10.52s on a formula simplification. DAG size of input: 71 DAG size of output: 68 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 03:39:00,628 WARN L227 SmtUtils]: Spent 10.91s on a formula simplification. DAG size of input: 67 DAG size of output: 64 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 03:39:11,306 WARN L227 SmtUtils]: Spent 10.68s on a formula simplification. DAG size of input: 67 DAG size of output: 64 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 03:39:22,039 WARN L227 SmtUtils]: Spent 10.73s on a formula simplification. DAG size of input: 67 DAG size of output: 64 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 03:39:32,688 WARN L227 SmtUtils]: Spent 10.65s on a formula simplification. DAG size of input: 67 DAG size of output: 64 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 03:39:43,462 WARN L227 SmtUtils]: Spent 10.77s on a formula simplification. DAG size of input: 67 DAG size of output: 64 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 03:39:53,979 WARN L227 SmtUtils]: Spent 10.52s on a formula simplification. DAG size of input: 71 DAG size of output: 68 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 03:40:05,085 WARN L227 SmtUtils]: Spent 11.11s on a formula simplification. DAG size of input: 67 DAG size of output: 64 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 03:40:16,657 WARN L227 SmtUtils]: Spent 10.73s on a formula simplification. DAG size of input: 67 DAG size of output: 64 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 03:40:27,254 WARN L227 SmtUtils]: Spent 10.60s on a formula simplification. DAG size of input: 71 DAG size of output: 68 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 03:40:37,802 WARN L227 SmtUtils]: Spent 10.55s on a formula simplification. DAG size of input: 71 DAG size of output: 68 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 03:40:48,453 WARN L227 SmtUtils]: Spent 10.65s on a formula simplification. DAG size of input: 71 DAG size of output: 68 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 03:40:59,129 WARN L227 SmtUtils]: Spent 10.67s on a formula simplification. DAG size of input: 71 DAG size of output: 68 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 03:41:09,496 WARN L227 SmtUtils]: Spent 10.37s on a formula simplification. DAG size of input: 71 DAG size of output: 68 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 03:41:19,867 WARN L227 SmtUtils]: Spent 10.37s on a formula simplification. DAG size of input: 71 DAG size of output: 68 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 03:41:30,805 WARN L227 SmtUtils]: Spent 10.94s on a formula simplification. DAG size of input: 67 DAG size of output: 64 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) Killed by 15