./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--crypto--qat--qat_common--intel_qat.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b688708d-a4db-4aa5-8634-07112cb56436/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b688708d-a4db-4aa5-8634-07112cb56436/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b688708d-a4db-4aa5-8634-07112cb56436/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b688708d-a4db-4aa5-8634-07112cb56436/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--crypto--qat--qat_common--intel_qat.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b688708d-a4db-4aa5-8634-07112cb56436/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b688708d-a4db-4aa5-8634-07112cb56436/bin/uautomizer-DrprNOufMa --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 cc81a0fdf5a8fc47bd520d0ffd4783aee7bab8a9ab782dc4fa625b3bc33bce33 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 23:51:27,466 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 23:51:27,468 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 23:51:27,498 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 23:51:27,499 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 23:51:27,500 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 23:51:27,502 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 23:51:27,504 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 23:51:27,506 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 23:51:27,507 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 23:51:27,508 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 23:51:27,510 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 23:51:27,510 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 23:51:27,511 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 23:51:27,513 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 23:51:27,514 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 23:51:27,515 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 23:51:27,516 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 23:51:27,519 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 23:51:27,521 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 23:51:27,522 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 23:51:27,523 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 23:51:27,525 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 23:51:27,526 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 23:51:27,529 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 23:51:27,529 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 23:51:27,530 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 23:51:27,531 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 23:51:27,531 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 23:51:27,533 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 23:51:27,533 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 23:51:27,534 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 23:51:27,534 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 23:51:27,535 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 23:51:27,536 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 23:51:27,536 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 23:51:27,537 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 23:51:27,537 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 23:51:27,538 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 23:51:27,538 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 23:51:27,539 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 23:51:27,540 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b688708d-a4db-4aa5-8634-07112cb56436/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-06 23:51:27,557 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 23:51:27,558 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 23:51:27,558 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 23:51:27,558 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 23:51:27,558 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 23:51:27,559 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 23:51:27,559 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 23:51:27,559 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 23:51:27,559 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 23:51:27,560 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 23:51:27,560 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 23:51:27,560 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 23:51:27,560 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 23:51:27,560 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 23:51:27,560 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 23:51:27,560 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 23:51:27,560 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 23:51:27,560 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 23:51:27,561 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 23:51:27,561 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 23:51:27,561 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 23:51:27,561 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 23:51:27,561 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 23:51:27,561 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 23:51:27,561 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 23:51:27,562 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 23:51:27,562 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 23:51:27,562 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 23:51:27,562 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 23:51:27,562 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 23:51:27,562 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 23:51:27,562 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b688708d-a4db-4aa5-8634-07112cb56436/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b688708d-a4db-4aa5-8634-07112cb56436/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cc81a0fdf5a8fc47bd520d0ffd4783aee7bab8a9ab782dc4fa625b3bc33bce33 [2021-12-06 23:51:27,764 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 23:51:27,783 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 23:51:27,785 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 23:51:27,786 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 23:51:27,786 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 23:51:27,787 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b688708d-a4db-4aa5-8634-07112cb56436/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--crypto--qat--qat_common--intel_qat.ko-entry_point.cil.out.i [2021-12-06 23:51:27,831 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b688708d-a4db-4aa5-8634-07112cb56436/bin/uautomizer-DrprNOufMa/data/ca8a2db77/330d15c47e364bbb9a1c89c42393d764/FLAG80635844a [2021-12-06 23:51:28,601 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 23:51:28,601 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b688708d-a4db-4aa5-8634-07112cb56436/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--crypto--qat--qat_common--intel_qat.ko-entry_point.cil.out.i [2021-12-06 23:51:28,639 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b688708d-a4db-4aa5-8634-07112cb56436/bin/uautomizer-DrprNOufMa/data/ca8a2db77/330d15c47e364bbb9a1c89c42393d764/FLAG80635844a [2021-12-06 23:51:28,857 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b688708d-a4db-4aa5-8634-07112cb56436/bin/uautomizer-DrprNOufMa/data/ca8a2db77/330d15c47e364bbb9a1c89c42393d764 [2021-12-06 23:51:28,859 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 23:51:28,860 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 23:51:28,861 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 23:51:28,861 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 23:51:28,864 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 23:51:28,864 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 11:51:28" (1/1) ... [2021-12-06 23:51:28,865 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@424f329d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:51:28, skipping insertion in model container [2021-12-06 23:51:28,865 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 11:51:28" (1/1) ... [2021-12-06 23:51:28,870 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 23:51:28,983 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 23:51:32,406 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b688708d-a4db-4aa5-8634-07112cb56436/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--crypto--qat--qat_common--intel_qat.ko-entry_point.cil.out.i[494254,494267] [2021-12-06 23:51:32,460 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 23:51:32,522 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 23:51:33,060 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b688708d-a4db-4aa5-8634-07112cb56436/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--crypto--qat--qat_common--intel_qat.ko-entry_point.cil.out.i[494254,494267] [2021-12-06 23:51:33,065 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 23:51:33,233 INFO L208 MainTranslator]: Completed translation [2021-12-06 23:51:33,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:51:33 WrapperNode [2021-12-06 23:51:33,233 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 23:51:33,234 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 23:51:33,235 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 23:51:33,235 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 23:51:33,242 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:51:33" (1/1) ... [2021-12-06 23:51:33,331 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:51:33" (1/1) ... [2021-12-06 23:51:33,586 INFO L137 Inliner]: procedures = 589, calls = 5722, calls flagged for inlining = 265, calls inlined = 231, statements flattened = 11434 [2021-12-06 23:51:33,587 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 23:51:33,587 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 23:51:33,587 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 23:51:33,587 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 23:51:33,595 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:51:33" (1/1) ... [2021-12-06 23:51:33,595 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:51:33" (1/1) ... [2021-12-06 23:51:33,645 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:51:33" (1/1) ... [2021-12-06 23:51:33,645 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:51:33" (1/1) ... [2021-12-06 23:51:33,848 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:51:33" (1/1) ... [2021-12-06 23:51:33,893 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:51:33" (1/1) ... [2021-12-06 23:51:33,956 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:51:33" (1/1) ... [2021-12-06 23:51:34,006 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 23:51:34,006 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 23:51:34,006 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 23:51:34,006 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 23:51:34,007 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:51:33" (1/1) ... [2021-12-06 23:51:34,013 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 23:51:34,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b688708d-a4db-4aa5-8634-07112cb56436/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 23:51:34,035 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b688708d-a4db-4aa5-8634-07112cb56436/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 23:51:34,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b688708d-a4db-4aa5-8634-07112cb56436/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 23:51:34,070 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-12-06 23:51:34,070 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-12-06 23:51:34,070 INFO L130 BoogieDeclarations]: Found specification of procedure qat_hal_wr_ae_csr [2021-12-06 23:51:34,070 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_hal_wr_ae_csr [2021-12-06 23:51:34,070 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-12-06 23:51:34,070 INFO L130 BoogieDeclarations]: Found specification of procedure seq_puts [2021-12-06 23:51:34,070 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_puts [2021-12-06 23:51:34,070 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-06 23:51:34,070 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-06 23:51:34,071 INFO L130 BoogieDeclarations]: Found specification of procedure adf_error_detected [2021-12-06 23:51:34,071 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_error_detected [2021-12-06 23:51:34,071 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2021-12-06 23:51:34,071 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2021-12-06 23:51:34,071 INFO L130 BoogieDeclarations]: Found specification of procedure adf_cfg_section_add [2021-12-06 23:51:34,071 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_cfg_section_add [2021-12-06 23:51:34,071 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-06 23:51:34,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-06 23:51:34,071 INFO L130 BoogieDeclarations]: Found specification of procedure crypto_shash_tfm [2021-12-06 23:51:34,071 INFO L138 BoogieDeclarations]: Found implementation of procedure crypto_shash_tfm [2021-12-06 23:51:34,071 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2021-12-06 23:51:34,071 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2021-12-06 23:51:34,071 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-06 23:51:34,071 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-06 23:51:34,071 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-06 23:51:34,072 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-06 23:51:34,072 INFO L130 BoogieDeclarations]: Found specification of procedure qat_hal_disable_ctx [2021-12-06 23:51:34,072 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_hal_disable_ctx [2021-12-06 23:51:34,072 INFO L130 BoogieDeclarations]: Found specification of procedure qat_hal_get_reg_addr [2021-12-06 23:51:34,072 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_hal_get_reg_addr [2021-12-06 23:51:34,072 INFO L130 BoogieDeclarations]: Found specification of procedure __crypto_aead_cast [2021-12-06 23:51:34,072 INFO L138 BoogieDeclarations]: Found implementation of procedure __crypto_aead_cast [2021-12-06 23:51:34,072 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-12-06 23:51:34,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-12-06 23:51:34,072 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-06 23:51:34,072 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-06 23:51:34,072 INFO L130 BoogieDeclarations]: Found specification of procedure crypto_aead_tfm [2021-12-06 23:51:34,072 INFO L138 BoogieDeclarations]: Found implementation of procedure crypto_aead_tfm [2021-12-06 23:51:34,072 INFO L130 BoogieDeclarations]: Found specification of procedure crypto_tfm_ctx [2021-12-06 23:51:34,073 INFO L138 BoogieDeclarations]: Found implementation of procedure crypto_tfm_ctx [2021-12-06 23:51:34,073 INFO L130 BoogieDeclarations]: Found specification of procedure qat_hal_put_wakeup_event [2021-12-06 23:51:34,073 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_hal_put_wakeup_event [2021-12-06 23:51:34,073 INFO L130 BoogieDeclarations]: Found specification of procedure qat_crypto_shutdown [2021-12-06 23:51:34,073 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_crypto_shutdown [2021-12-06 23:51:34,073 INFO L130 BoogieDeclarations]: Found specification of procedure qat_hal_rd_rel_reg [2021-12-06 23:51:34,073 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_hal_rd_rel_reg [2021-12-06 23:51:34,073 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-06 23:51:34,073 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-06 23:51:34,073 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-12-06 23:51:34,073 INFO L130 BoogieDeclarations]: Found specification of procedure qat_hal_rd_ae_csr [2021-12-06 23:51:34,073 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_hal_rd_ae_csr [2021-12-06 23:51:34,073 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-06 23:51:34,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-06 23:51:34,073 INFO L130 BoogieDeclarations]: Found specification of procedure adf_devmgr_pci_to_accel_dev [2021-12-06 23:51:34,074 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_devmgr_pci_to_accel_dev [2021-12-06 23:51:34,074 INFO L130 BoogieDeclarations]: Found specification of procedure adf_cleanup_etr_data [2021-12-06 23:51:34,074 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_cleanup_etr_data [2021-12-06 23:51:34,074 INFO L130 BoogieDeclarations]: Found specification of procedure qat_hal_clr_reset [2021-12-06 23:51:34,074 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_hal_clr_reset [2021-12-06 23:51:34,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 23:51:34,074 INFO L130 BoogieDeclarations]: Found specification of procedure qat_hal_set_uword_ecc [2021-12-06 23:51:34,074 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_hal_set_uword_ecc [2021-12-06 23:51:34,074 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2021-12-06 23:51:34,074 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2021-12-06 23:51:34,074 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2021-12-06 23:51:34,074 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2021-12-06 23:51:34,074 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2021-12-06 23:51:34,074 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2021-12-06 23:51:34,074 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-12-06 23:51:34,075 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-12-06 23:51:34,075 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_dir [2021-12-06 23:51:34,075 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_dir [2021-12-06 23:51:34,075 INFO L130 BoogieDeclarations]: Found specification of procedure qat_hal_wr_uwords [2021-12-06 23:51:34,075 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_hal_wr_uwords [2021-12-06 23:51:34,075 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-06 23:51:34,075 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-06 23:51:34,075 INFO L130 BoogieDeclarations]: Found specification of procedure adf_devmgr_get_head [2021-12-06 23:51:34,075 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_devmgr_get_head [2021-12-06 23:51:34,075 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2021-12-06 23:51:34,075 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2021-12-06 23:51:34,075 INFO L130 BoogieDeclarations]: Found specification of procedure adf_cfg_del_all [2021-12-06 23:51:34,075 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_cfg_del_all [2021-12-06 23:51:34,075 INFO L130 BoogieDeclarations]: Found specification of procedure aead_request_ctx [2021-12-06 23:51:34,075 INFO L138 BoogieDeclarations]: Found implementation of procedure aead_request_ctx [2021-12-06 23:51:34,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-06 23:51:34,076 INFO L130 BoogieDeclarations]: Found specification of procedure adf_dev_init [2021-12-06 23:51:34,076 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_dev_init [2021-12-06 23:51:34,076 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-06 23:51:34,076 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-06 23:51:34,076 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-06 23:51:34,076 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-06 23:51:34,076 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2021-12-06 23:51:34,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2021-12-06 23:51:34,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-06 23:51:34,076 INFO L130 BoogieDeclarations]: Found specification of procedure adf_service_unregister [2021-12-06 23:51:34,076 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_service_unregister [2021-12-06 23:51:34,076 INFO L130 BoogieDeclarations]: Found specification of procedure seq_open [2021-12-06 23:51:34,076 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_open [2021-12-06 23:51:34,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 23:51:34,076 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-06 23:51:34,077 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-06 23:51:34,077 INFO L130 BoogieDeclarations]: Found specification of procedure crypto_ablkcipher_reqtfm [2021-12-06 23:51:34,077 INFO L138 BoogieDeclarations]: Found implementation of procedure crypto_ablkcipher_reqtfm [2021-12-06 23:51:34,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-06 23:51:34,077 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-06 23:51:34,077 INFO L130 BoogieDeclarations]: Found specification of procedure adf_bank_open [2021-12-06 23:51:34,077 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_bank_open [2021-12-06 23:51:34,077 INFO L130 BoogieDeclarations]: Found specification of procedure qat_crypto_free_instances [2021-12-06 23:51:34,077 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_crypto_free_instances [2021-12-06 23:51:34,077 INFO L130 BoogieDeclarations]: Found specification of procedure qat_alg_free_bufl [2021-12-06 23:51:34,077 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_alg_free_bufl [2021-12-06 23:51:34,077 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_destroy [2021-12-06 23:51:34,077 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_destroy [2021-12-06 23:51:34,077 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-12-06 23:51:34,077 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-12-06 23:51:34,078 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-12-06 23:51:34,078 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-12-06 23:51:34,078 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc_node [2021-12-06 23:51:34,078 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc_node [2021-12-06 23:51:34,078 INFO L130 BoogieDeclarations]: Found specification of procedure sg_next [2021-12-06 23:51:34,078 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_next [2021-12-06 23:51:34,078 INFO L130 BoogieDeclarations]: Found specification of procedure qat_alg_aead_init [2021-12-06 23:51:34,078 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_alg_aead_init [2021-12-06 23:51:34,078 INFO L130 BoogieDeclarations]: Found specification of procedure qat_uclo_find_chunk [2021-12-06 23:51:34,078 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_uclo_find_chunk [2021-12-06 23:51:34,078 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-06 23:51:34,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-06 23:51:34,078 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-06 23:51:34,078 INFO L130 BoogieDeclarations]: Found specification of procedure qat_uclo_init_reg [2021-12-06 23:51:34,078 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_uclo_init_reg [2021-12-06 23:51:34,079 INFO L130 BoogieDeclarations]: Found specification of procedure adf_ring_stop [2021-12-06 23:51:34,079 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_ring_stop [2021-12-06 23:51:34,079 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-12-06 23:51:34,079 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-12-06 23:51:34,079 INFO L130 BoogieDeclarations]: Found specification of procedure seq_lseek [2021-12-06 23:51:34,079 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_lseek [2021-12-06 23:51:34,079 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-12-06 23:51:34,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-12-06 23:51:34,079 INFO L130 BoogieDeclarations]: Found specification of procedure qat_hal_exec_micro_inst [2021-12-06 23:51:34,079 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_hal_exec_micro_inst [2021-12-06 23:51:34,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 23:51:34,079 INFO L130 BoogieDeclarations]: Found specification of procedure adf_exit_aer [2021-12-06 23:51:34,079 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_exit_aer [2021-12-06 23:51:34,079 INFO L130 BoogieDeclarations]: Found specification of procedure qat_hal_get_uwords [2021-12-06 23:51:34,079 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_hal_get_uwords [2021-12-06 23:51:34,079 INFO L130 BoogieDeclarations]: Found specification of procedure adf_create_ring [2021-12-06 23:51:34,079 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_create_ring [2021-12-06 23:51:34,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-06 23:51:34,080 INFO L130 BoogieDeclarations]: Found specification of procedure adf_cleanup_ring [2021-12-06 23:51:34,080 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_cleanup_ring [2021-12-06 23:51:34,080 INFO L130 BoogieDeclarations]: Found specification of procedure adf_modulo [2021-12-06 23:51:34,080 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_modulo [2021-12-06 23:51:34,080 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-06 23:51:34,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-06 23:51:34,080 INFO L130 BoogieDeclarations]: Found specification of procedure qat_uclo_create_batch_init_list [2021-12-06 23:51:34,080 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_uclo_create_batch_init_list [2021-12-06 23:51:34,080 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-06 23:51:34,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-06 23:51:34,080 INFO L130 BoogieDeclarations]: Found specification of procedure qat_hal_convert_abs_to_rel [2021-12-06 23:51:34,080 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_hal_convert_abs_to_rel [2021-12-06 23:51:34,080 INFO L130 BoogieDeclarations]: Found specification of procedure adf_send_message [2021-12-06 23:51:34,080 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_send_message [2021-12-06 23:51:34,080 INFO L130 BoogieDeclarations]: Found specification of procedure qat_hal_init_rd_xfer [2021-12-06 23:51:34,080 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_hal_init_rd_xfer [2021-12-06 23:51:34,081 INFO L130 BoogieDeclarations]: Found specification of procedure adf_chr_drv_destroy [2021-12-06 23:51:34,081 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_chr_drv_destroy [2021-12-06 23:51:34,081 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2021-12-06 23:51:34,081 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2021-12-06 23:51:34,081 INFO L130 BoogieDeclarations]: Found specification of procedure qat_hal_put_sig_event [2021-12-06 23:51:34,081 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_hal_put_sig_event [2021-12-06 23:51:34,081 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-06 23:51:34,081 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-06 23:51:34,081 INFO L130 BoogieDeclarations]: Found specification of procedure adf_dev_stop [2021-12-06 23:51:34,081 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_dev_stop [2021-12-06 23:51:34,081 INFO L130 BoogieDeclarations]: Found specification of procedure qat_crypto_event_handler [2021-12-06 23:51:34,081 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_crypto_event_handler [2021-12-06 23:51:34,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 23:51:34,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 23:51:34,081 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2021-12-06 23:51:34,081 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2021-12-06 23:51:34,081 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-06 23:51:34,082 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-06 23:51:34,082 INFO L130 BoogieDeclarations]: Found specification of procedure qat_hal_parity_64bit [2021-12-06 23:51:34,082 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_hal_parity_64bit [2021-12-06 23:51:34,082 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-06 23:51:34,082 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-06 23:51:34,082 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_del [2021-12-06 23:51:34,082 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_del [2021-12-06 23:51:34,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-06 23:51:34,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-06 23:51:34,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-06 23:51:34,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-06 23:51:34,082 INFO L130 BoogieDeclarations]: Found specification of procedure qat_crypto_init [2021-12-06 23:51:34,082 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_crypto_init [2021-12-06 23:51:34,082 INFO L130 BoogieDeclarations]: Found specification of procedure adf_cfg_add_key_value_param [2021-12-06 23:51:34,082 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_cfg_add_key_value_param [2021-12-06 23:51:34,082 INFO L130 BoogieDeclarations]: Found specification of procedure qat_hal_wr_indr_csr [2021-12-06 23:51:34,082 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_hal_wr_indr_csr [2021-12-06 23:51:34,083 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_sub_return [2021-12-06 23:51:34,083 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_sub_return [2021-12-06 23:51:34,083 INFO L130 BoogieDeclarations]: Found specification of procedure qat_crypto_put_instance [2021-12-06 23:51:34,083 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_crypto_put_instance [2021-12-06 23:51:34,083 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2021-12-06 23:51:34,083 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2021-12-06 23:51:34,083 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2021-12-06 23:51:34,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2021-12-06 23:51:34,083 INFO L130 BoogieDeclarations]: Found specification of procedure qat_hal_put_rel_wr_xfer [2021-12-06 23:51:34,083 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_hal_put_rel_wr_xfer [2021-12-06 23:51:34,083 INFO L130 BoogieDeclarations]: Found specification of procedure adf_unreserve_ring [2021-12-06 23:51:34,083 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_unreserve_ring [2021-12-06 23:51:34,083 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-06 23:51:34,083 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-06 23:51:34,083 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_hweight32 [2021-12-06 23:51:34,083 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_hweight32 [2021-12-06 23:51:34,083 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-06 23:51:34,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-06 23:51:34,084 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_6 [2021-12-06 23:51:34,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_6 [2021-12-06 23:51:34,084 INFO L130 BoogieDeclarations]: Found specification of procedure adf_ctl_ioctl [2021-12-06 23:51:34,084 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_ctl_ioctl [2021-12-06 23:51:34,084 INFO L130 BoogieDeclarations]: Found specification of procedure adf_cfg_section_del_all [2021-12-06 23:51:34,084 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_cfg_section_del_all [2021-12-06 23:51:34,084 INFO L130 BoogieDeclarations]: Found specification of procedure qat_dev_cfg_show [2021-12-06 23:51:34,084 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_dev_cfg_show [2021-12-06 23:51:34,084 INFO L130 BoogieDeclarations]: Found specification of procedure qat_uclo_fetch_initmem_ae [2021-12-06 23:51:34,084 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_uclo_fetch_initmem_ae [2021-12-06 23:51:34,084 INFO L130 BoogieDeclarations]: Found specification of procedure qat_hal_enable_ctx [2021-12-06 23:51:34,084 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_hal_enable_ctx [2021-12-06 23:51:34,084 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-12-06 23:51:34,084 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-12-06 23:51:34,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-06 23:51:34,085 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-06 23:51:34,085 INFO L130 BoogieDeclarations]: Found specification of procedure adf_bank_show [2021-12-06 23:51:34,085 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_bank_show [2021-12-06 23:51:34,085 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2021-12-06 23:51:34,085 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2021-12-06 23:51:34,085 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-06 23:51:34,085 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-06 23:51:34,085 INFO L130 BoogieDeclarations]: Found specification of procedure adf_cfg_sec_find [2021-12-06 23:51:34,085 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_cfg_sec_find [2021-12-06 23:51:34,085 INFO L130 BoogieDeclarations]: Found specification of procedure adf_ring_show [2021-12-06 23:51:34,085 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_ring_show [2021-12-06 23:51:34,085 INFO L130 BoogieDeclarations]: Found specification of procedure qat_hal_deinit [2021-12-06 23:51:34,085 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_hal_deinit [2021-12-06 23:51:34,085 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-12-06 23:51:34,085 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-12-06 23:51:34,085 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_node [2021-12-06 23:51:34,085 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_node [2021-12-06 23:51:34,085 INFO L130 BoogieDeclarations]: Found specification of procedure adf_ctl_alloc_resources [2021-12-06 23:51:34,086 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_ctl_alloc_resources [2021-12-06 23:51:34,086 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-12-06 23:51:34,086 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-12-06 23:51:34,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 23:51:34,086 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-06 23:51:34,086 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-06 23:51:34,086 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-06 23:51:34,086 INFO L130 BoogieDeclarations]: Found specification of procedure adf_devmgr_get_dev_by_id [2021-12-06 23:51:34,086 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_devmgr_get_dev_by_id [2021-12-06 23:51:34,086 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2021-12-06 23:51:34,086 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2021-12-06 23:51:34,086 INFO L130 BoogieDeclarations]: Found specification of procedure qat_hal_set_ae_lm_mode [2021-12-06 23:51:34,086 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_hal_set_ae_lm_mode [2021-12-06 23:51:34,086 INFO L130 BoogieDeclarations]: Found specification of procedure qat_dev_cfg_open [2021-12-06 23:51:34,086 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_dev_cfg_open [2021-12-06 23:51:34,086 INFO L130 BoogieDeclarations]: Found specification of procedure adf_ae_fw_release [2021-12-06 23:51:34,086 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_ae_fw_release [2021-12-06 23:51:34,087 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2021-12-06 23:51:34,087 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2021-12-06 23:51:34,087 INFO L130 BoogieDeclarations]: Found specification of procedure ablkcipher_request_ctx [2021-12-06 23:51:34,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ablkcipher_request_ctx [2021-12-06 23:51:34,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-06 23:51:34,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_seq_operations_3 [2021-12-06 23:51:34,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_seq_operations_3 [2021-12-06 23:51:34,087 INFO L130 BoogieDeclarations]: Found specification of procedure adf_init_etr_data [2021-12-06 23:51:34,087 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_init_etr_data [2021-12-06 23:51:34,087 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev_region [2021-12-06 23:51:34,087 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev_region [2021-12-06 23:51:34,087 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-06 23:51:34,087 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-06 23:51:34,087 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-12-06 23:51:34,087 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-12-06 23:51:34,087 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2021-12-06 23:51:34,087 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2021-12-06 23:51:34,088 INFO L130 BoogieDeclarations]: Found specification of procedure adf_dev_restarted_notify [2021-12-06 23:51:34,088 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_dev_restarted_notify [2021-12-06 23:51:34,088 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-06 23:51:34,088 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-06 23:51:34,088 INFO L130 BoogieDeclarations]: Found specification of procedure adf_dev_shutdown [2021-12-06 23:51:34,088 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_dev_shutdown [2021-12-06 23:51:34,088 INFO L130 BoogieDeclarations]: Found specification of procedure adf_ring_open [2021-12-06 23:51:34,088 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_ring_open [2021-12-06 23:51:34,088 INFO L130 BoogieDeclarations]: Found specification of procedure adf_remove_ring [2021-12-06 23:51:34,088 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_remove_ring [2021-12-06 23:51:34,088 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_array [2021-12-06 23:51:34,088 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_array [2021-12-06 23:51:34,088 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-12-06 23:51:34,088 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-12-06 23:51:34,088 INFO L130 BoogieDeclarations]: Found specification of procedure crypto_aead_reqtfm [2021-12-06 23:51:34,088 INFO L138 BoogieDeclarations]: Found implementation of procedure crypto_aead_reqtfm [2021-12-06 23:51:34,088 INFO L130 BoogieDeclarations]: Found specification of procedure qat_alg_sgl_to_bufl [2021-12-06 23:51:34,088 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_alg_sgl_to_bufl [2021-12-06 23:51:34,089 INFO L130 BoogieDeclarations]: Found specification of procedure qat_crypto_create_instances [2021-12-06 23:51:34,089 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_crypto_create_instances [2021-12-06 23:51:34,089 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-06 23:51:34,089 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-06 23:51:34,089 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-06 23:51:34,089 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-06 23:51:34,089 INFO L130 BoogieDeclarations]: Found specification of procedure adf_cfg_get_param_value [2021-12-06 23:51:34,089 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_cfg_get_param_value [2021-12-06 23:51:34,089 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_file [2021-12-06 23:51:34,089 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_file [2021-12-06 23:51:34,089 INFO L130 BoogieDeclarations]: Found specification of procedure adf_resume [2021-12-06 23:51:34,089 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_resume [2021-12-06 23:51:34,089 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2021-12-06 23:51:34,089 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2021-12-06 23:51:34,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 23:51:34,089 INFO L130 BoogieDeclarations]: Found specification of procedure seq_release [2021-12-06 23:51:34,089 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_release [2021-12-06 23:51:34,089 INFO L130 BoogieDeclarations]: Found specification of procedure qat_hal_rd_indr_csr [2021-12-06 23:51:34,090 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_hal_rd_indr_csr [2021-12-06 23:51:34,090 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-06 23:51:34,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-06 23:51:34,090 INFO L130 BoogieDeclarations]: Found specification of procedure qat_dev_cfg_stop [2021-12-06 23:51:34,090 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_dev_cfg_stop [2021-12-06 23:51:34,090 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~~uint32_t~0 [2021-12-06 23:51:34,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~~uint32_t~0 [2021-12-06 23:51:34,090 INFO L130 BoogieDeclarations]: Found specification of procedure adf_get_cfg_int [2021-12-06 23:51:34,090 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_get_cfg_int [2021-12-06 23:51:34,090 INFO L130 BoogieDeclarations]: Found specification of procedure adf_bank_stop [2021-12-06 23:51:34,090 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_bank_stop [2021-12-06 23:51:34,090 INFO L130 BoogieDeclarations]: Found specification of procedure adf_device_reset_worker [2021-12-06 23:51:34,090 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_device_reset_worker [2021-12-06 23:51:34,090 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-06 23:51:34,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-06 23:51:34,090 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-12-06 23:51:34,090 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-12-06 23:51:34,090 INFO L130 BoogieDeclarations]: Found specification of procedure adf_dev_restarting_notify [2021-12-06 23:51:34,091 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_dev_restarting_notify [2021-12-06 23:51:34,091 INFO L130 BoogieDeclarations]: Found specification of procedure adf_dev_started [2021-12-06 23:51:34,091 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_dev_started [2021-12-06 23:51:34,091 INFO L130 BoogieDeclarations]: Found specification of procedure sg_nents [2021-12-06 23:51:34,091 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_nents [2021-12-06 23:51:34,091 INFO L130 BoogieDeclarations]: Found specification of procedure qat_alg_aead_enc_internal [2021-12-06 23:51:34,091 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_alg_aead_enc_internal [2021-12-06 23:51:34,091 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2021-12-06 23:51:34,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2021-12-06 23:51:34,091 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-12-06 23:51:34,091 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-12-06 23:51:34,091 INFO L130 BoogieDeclarations]: Found specification of procedure adf_slot_reset [2021-12-06 23:51:34,091 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_slot_reset [2021-12-06 23:51:34,091 INFO L130 BoogieDeclarations]: Found specification of procedure qat_uclo_cleanup_batch_init_list [2021-12-06 23:51:34,091 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_uclo_cleanup_batch_init_list [2021-12-06 23:51:34,091 INFO L130 BoogieDeclarations]: Found specification of procedure __readl [2021-12-06 23:51:34,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __readl [2021-12-06 23:51:34,091 INFO L130 BoogieDeclarations]: Found specification of procedure qat_hal_wait_cycles [2021-12-06 23:51:34,092 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_hal_wait_cycles [2021-12-06 23:51:34,092 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2021-12-06 23:51:34,092 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2021-12-06 23:51:34,092 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2021-12-06 23:51:34,092 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2021-12-06 23:51:34,092 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoul [2021-12-06 23:51:34,092 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoul [2021-12-06 23:51:34,092 INFO L130 BoogieDeclarations]: Found specification of procedure __writel [2021-12-06 23:51:34,092 INFO L138 BoogieDeclarations]: Found implementation of procedure __writel [2021-12-06 23:51:34,092 INFO L130 BoogieDeclarations]: Found specification of procedure qat_algs_exit [2021-12-06 23:51:34,092 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_algs_exit [2021-12-06 23:51:34,092 INFO L130 BoogieDeclarations]: Found specification of procedure crypto_aead_crt [2021-12-06 23:51:34,092 INFO L138 BoogieDeclarations]: Found implementation of procedure crypto_aead_crt [2021-12-06 23:51:34,092 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-06 23:51:34,092 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-06 23:51:34,092 INFO L130 BoogieDeclarations]: Found specification of procedure adf_service_register [2021-12-06 23:51:34,092 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_service_register [2021-12-06 23:51:34,093 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2021-12-06 23:51:34,093 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2021-12-06 23:51:34,093 INFO L130 BoogieDeclarations]: Found specification of procedure adf_dev_start [2021-12-06 23:51:34,093 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_dev_start [2021-12-06 23:51:34,093 INFO L130 BoogieDeclarations]: Found specification of procedure sg_virt [2021-12-06 23:51:34,093 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_virt [2021-12-06 23:51:34,093 INFO L130 BoogieDeclarations]: Found specification of procedure crypto_ablkcipher_tfm [2021-12-06 23:51:34,093 INFO L138 BoogieDeclarations]: Found implementation of procedure crypto_ablkcipher_tfm [2021-12-06 23:51:34,093 INFO L130 BoogieDeclarations]: Found specification of procedure adf_verify_ring_size [2021-12-06 23:51:34,093 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_verify_ring_size [2021-12-06 23:51:34,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 23:51:34,093 INFO L130 BoogieDeclarations]: Found specification of procedure qat_hal_wr_rel_reg [2021-12-06 23:51:34,093 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_hal_wr_rel_reg [2021-12-06 23:51:34,093 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-12-06 23:51:34,093 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtouint [2021-12-06 23:51:34,093 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtouint [2021-12-06 23:51:34,884 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 23:51:34,887 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 23:51:34,947 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-06 23:59:53,525 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 23:59:53,550 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 23:59:53,550 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-06 23:59:53,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 11:59:53 BoogieIcfgContainer [2021-12-06 23:59:53,555 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 23:59:53,556 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 23:59:53,556 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 23:59:53,559 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 23:59:53,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 11:51:28" (1/3) ... [2021-12-06 23:59:53,560 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@467e8087 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 11:59:53, skipping insertion in model container [2021-12-06 23:59:53,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:51:33" (2/3) ... [2021-12-06 23:59:53,560 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@467e8087 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 11:59:53, skipping insertion in model container [2021-12-06 23:59:53,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 11:59:53" (3/3) ... [2021-12-06 23:59:53,562 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--crypto--qat--qat_common--intel_qat.ko-entry_point.cil.out.i [2021-12-06 23:59:53,567 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 23:59:53,567 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 23:59:53,619 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 23:59:53,625 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 23:59:53,625 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 23:59:53,690 INFO L276 IsEmpty]: Start isEmpty. Operand has 3653 states, 2562 states have (on average 1.3302107728337236) internal successors, (3408), 2618 states have internal predecessors, (3408), 906 states have call successors, (906), 184 states have call predecessors, (906), 183 states have return successors, (896), 891 states have call predecessors, (896), 896 states have call successors, (896) [2021-12-06 23:59:53,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-12-06 23:59:53,702 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:59:53,702 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:59:53,703 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:59:53,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:59:53,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1262535097, now seen corresponding path program 1 times [2021-12-06 23:59:53,713 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:59:53,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986520810] [2021-12-06 23:59:53,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:53,714 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:59:54,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:54,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 23:59:54,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:54,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:59:54,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:54,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 23:59:54,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:54,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:59:54,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:54,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 23:59:54,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:54,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:59:54,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:54,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-06 23:59:54,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:54,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:59:54,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:54,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-06 23:59:54,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:54,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-06 23:59:54,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:54,851 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-12-06 23:59:54,851 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:59:54,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986520810] [2021-12-06 23:59:54,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986520810] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:59:54,852 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:59:54,852 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 23:59:54,854 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130160413] [2021-12-06 23:59:54,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:59:54,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 23:59:54,857 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:59:54,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 23:59:54,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 23:59:54,886 INFO L87 Difference]: Start difference. First operand has 3653 states, 2562 states have (on average 1.3302107728337236) internal successors, (3408), 2618 states have internal predecessors, (3408), 906 states have call successors, (906), 184 states have call predecessors, (906), 183 states have return successors, (896), 891 states have call predecessors, (896), 896 states have call successors, (896) Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-06 23:59:56,996 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:00:11,162 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:00:13,197 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:00:18,502 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:00:20,533 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:00:26,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:00:26,965 INFO L93 Difference]: Finished difference Result 8428 states and 12541 transitions. [2021-12-07 00:00:26,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 00:00:26,967 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 82 [2021-12-07 00:00:26,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:00:27,018 INFO L225 Difference]: With dead ends: 8428 [2021-12-07 00:00:27,019 INFO L226 Difference]: Without dead ends: 4754 [2021-12-07 00:00:27,049 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-07 00:00:27,052 INFO L933 BasicCegarLoop]: 5358 mSDtfsCounter, 2574 mSDsluCounter, 11185 mSDsCounter, 0 mSdLazyCounter, 4579 mSolverCounterSat, 1312 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2882 SdHoareTripleChecker+Valid, 16543 SdHoareTripleChecker+Invalid, 5896 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1312 IncrementalHoareTripleChecker+Valid, 4579 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.4s IncrementalHoareTripleChecker+Time [2021-12-07 00:00:27,053 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2882 Valid, 16543 Invalid, 5896 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1312 Valid, 4579 Invalid, 5 Unknown, 0 Unchecked, 31.4s Time] [2021-12-07 00:00:27,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4754 states. [2021-12-07 00:00:27,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4754 to 3632. [2021-12-07 00:00:27,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3632 states, 2553 states have (on average 1.3235409322365843) internal successors, (3379), 2596 states have internal predecessors, (3379), 896 states have call successors, (896), 183 states have call predecessors, (896), 182 states have return successors, (894), 889 states have call predecessors, (894), 894 states have call successors, (894) [2021-12-07 00:00:27,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3632 states to 3632 states and 5169 transitions. [2021-12-07 00:00:27,301 INFO L78 Accepts]: Start accepts. Automaton has 3632 states and 5169 transitions. Word has length 82 [2021-12-07 00:00:27,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:00:27,302 INFO L470 AbstractCegarLoop]: Abstraction has 3632 states and 5169 transitions. [2021-12-07 00:00:27,302 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-07 00:00:27,302 INFO L276 IsEmpty]: Start isEmpty. Operand 3632 states and 5169 transitions. [2021-12-07 00:00:27,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-12-07 00:00:27,308 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:00:27,309 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] [2021-12-07 00:00:27,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-07 00:00:27,309 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:00:27,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:00:27,309 INFO L85 PathProgramCache]: Analyzing trace with hash 2046307819, now seen corresponding path program 1 times [2021-12-07 00:00:27,310 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:00:27,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950367142] [2021-12-07 00:00:27,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:00:27,310 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:00:27,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:27,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-07 00:00:27,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:27,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:00:27,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:27,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-07 00:00:28,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:28,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:00:28,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:28,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-07 00:00:28,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:28,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:00:28,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:28,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-07 00:00:28,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:28,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:00:28,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:28,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-07 00:00:28,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:28,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-07 00:00:28,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:28,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-07 00:00:28,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:28,093 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-12-07 00:00:28,093 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:00:28,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950367142] [2021-12-07 00:00:28,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950367142] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:00:28,094 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:00:28,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 00:00:28,094 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096098623] [2021-12-07 00:00:28,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:00:28,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 00:00:28,096 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:00:28,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 00:00:28,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-07 00:00:28,096 INFO L87 Difference]: Start difference. First operand 3632 states and 5169 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-07 00:00:30,202 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:00:38,774 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:00:40,815 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:00:53,048 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:00:55,081 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:01:08,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:01:08,055 INFO L93 Difference]: Finished difference Result 12469 states and 18366 transitions. [2021-12-07 00:01:08,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 00:01:08,056 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (9), 3 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 91 [2021-12-07 00:01:08,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:01:08,120 INFO L225 Difference]: With dead ends: 12469 [2021-12-07 00:01:08,121 INFO L226 Difference]: Without dead ends: 8840 [2021-12-07 00:01:08,141 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:01:08,143 INFO L933 BasicCegarLoop]: 6939 mSDtfsCounter, 8058 mSDsluCounter, 7382 mSDsCounter, 0 mSdLazyCounter, 4644 mSolverCounterSat, 3063 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8798 SdHoareTripleChecker+Valid, 14321 SdHoareTripleChecker+Invalid, 7712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3063 IncrementalHoareTripleChecker+Valid, 4644 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:01:08,143 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8798 Valid, 14321 Invalid, 7712 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3063 Valid, 4644 Invalid, 5 Unknown, 0 Unchecked, 39.0s Time] [2021-12-07 00:01:08,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8840 states. [2021-12-07 00:01:08,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8840 to 7818. [2021-12-07 00:01:08,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7818 states, 5533 states have (on average 1.3298391469365625) internal successors, (7358), 5639 states have internal predecessors, (7358), 1893 states have call successors, (1893), 362 states have call predecessors, (1893), 391 states have return successors, (2116), 1903 states have call predecessors, (2116), 1891 states have call successors, (2116) [2021-12-07 00:01:08,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7818 states to 7818 states and 11367 transitions. [2021-12-07 00:01:08,461 INFO L78 Accepts]: Start accepts. Automaton has 7818 states and 11367 transitions. Word has length 91 [2021-12-07 00:01:08,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:01:08,462 INFO L470 AbstractCegarLoop]: Abstraction has 7818 states and 11367 transitions. [2021-12-07 00:01:08,462 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-07 00:01:08,462 INFO L276 IsEmpty]: Start isEmpty. Operand 7818 states and 11367 transitions. [2021-12-07 00:01:08,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-12-07 00:01:08,468 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:01:08,468 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:01:08,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-07 00:01:08,468 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:01:08,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:01:08,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1284926578, now seen corresponding path program 1 times [2021-12-07 00:01:08,469 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:01:08,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787944931] [2021-12-07 00:01:08,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:01:08,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:01:08,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:01:09,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-07 00:01:09,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:01:09,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:01:09,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:01:09,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-07 00:01:09,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:01:09,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:01:09,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:01:09,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-07 00:01:09,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:01:09,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:01:09,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:01:09,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-07 00:01:09,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:01:09,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:01:09,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:01:09,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-07 00:01:09,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:01:09,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:01:09,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:01:09,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-07 00:01:09,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:01:09,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-07 00:01:09,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:01:09,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-07 00:01:09,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:01:09,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-07 00:01:09,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:01:09,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:01:09,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:01:09,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-07 00:01:09,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:01:09,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:01:09,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:01:09,218 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2021-12-07 00:01:09,219 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:01:09,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787944931] [2021-12-07 00:01:09,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787944931] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:01:09,219 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:01:09,219 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-07 00:01:09,219 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516554102] [2021-12-07 00:01:09,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:01:09,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 00:01:09,220 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:01:09,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 00:01:09,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:01:09,220 INFO L87 Difference]: Start difference. First operand 7818 states and 11367 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-07 00:01:11,321 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:01:13,578 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:01:15,865 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:01:47,594 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:01:49,639 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:02:05,400 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:02:07,440 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:02:23,197 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:02:40,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:02:40,757 INFO L93 Difference]: Finished difference Result 25258 states and 37194 transitions. [2021-12-07 00:02:40,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 00:02:40,758 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 150 [2021-12-07 00:02:40,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:02:40,859 INFO L225 Difference]: With dead ends: 25258 [2021-12-07 00:02:40,859 INFO L226 Difference]: Without dead ends: 17440 [2021-12-07 00:02:40,895 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:02:40,896 INFO L933 BasicCegarLoop]: 7303 mSDtfsCounter, 10175 mSDsluCounter, 2214 mSDsCounter, 0 mSdLazyCounter, 12524 mSolverCounterSat, 7011 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 81.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10889 SdHoareTripleChecker+Valid, 9517 SdHoareTripleChecker+Invalid, 19542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 7011 IncrementalHoareTripleChecker+Valid, 12524 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 89.9s IncrementalHoareTripleChecker+Time [2021-12-07 00:02:40,896 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10889 Valid, 9517 Invalid, 19542 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [7011 Valid, 12524 Invalid, 7 Unknown, 0 Unchecked, 89.9s Time] [2021-12-07 00:02:40,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17440 states. [2021-12-07 00:02:41,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17440 to 15409. [2021-12-07 00:02:41,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15409 states, 10911 states have (on average 1.330767115754743) internal successors, (14520), 11116 states have internal predecessors, (14520), 3722 states have call successors, (3722), 718 states have call predecessors, (3722), 775 states have return successors, (4170), 3743 states have call predecessors, (4170), 3720 states have call successors, (4170) [2021-12-07 00:02:41,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15409 states to 15409 states and 22412 transitions. [2021-12-07 00:02:41,534 INFO L78 Accepts]: Start accepts. Automaton has 15409 states and 22412 transitions. Word has length 150 [2021-12-07 00:02:41,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:02:41,534 INFO L470 AbstractCegarLoop]: Abstraction has 15409 states and 22412 transitions. [2021-12-07 00:02:41,535 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-07 00:02:41,535 INFO L276 IsEmpty]: Start isEmpty. Operand 15409 states and 22412 transitions. [2021-12-07 00:02:41,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2021-12-07 00:02:41,545 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:02:41,545 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:02:41,545 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-07 00:02:41,546 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:02:41,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:02:41,547 INFO L85 PathProgramCache]: Analyzing trace with hash 573249386, now seen corresponding path program 1 times [2021-12-07 00:02:41,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:02:41,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817480187] [2021-12-07 00:02:41,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:02:41,548 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:02:41,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:02:42,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-07 00:02:42,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:02:42,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:02:42,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:02:42,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-07 00:02:42,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:02:42,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:02:42,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:02:42,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-07 00:02:42,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:02:42,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:02:42,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:02:42,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-07 00:02:42,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:02:42,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:02:42,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:02:42,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-07 00:02:42,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:02:42,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-07 00:02:42,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:02:42,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-07 00:02:42,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:02:42,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:02:42,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:02:42,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:02:42,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:02:42,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-07 00:02:42,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:02:42,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-07 00:02:42,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:02:42,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-07 00:02:42,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:02:42,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:02:42,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:02:42,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-07 00:02:42,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:02:42,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:02:42,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:02:42,322 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2021-12-07 00:02:42,322 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:02:42,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817480187] [2021-12-07 00:02:42,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817480187] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:02:42,323 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:02:42,323 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-07 00:02:42,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911997965] [2021-12-07 00:02:42,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:02:42,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 00:02:42,323 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:02:42,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 00:02:42,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:02:42,324 INFO L87 Difference]: Start difference. First operand 15409 states and 22412 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-07 00:02:44,441 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:03:04,937 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:03:06,971 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:03:11,981 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:03:14,006 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:03:20,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:03:20,905 INFO L93 Difference]: Finished difference Result 33977 states and 50144 transitions. [2021-12-07 00:03:20,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 00:03:20,907 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 176 [2021-12-07 00:03:20,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:03:20,988 INFO L225 Difference]: With dead ends: 33977 [2021-12-07 00:03:20,988 INFO L226 Difference]: Without dead ends: 18580 [2021-12-07 00:03:21,045 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-07 00:03:21,046 INFO L933 BasicCegarLoop]: 5099 mSDtfsCounter, 2461 mSDsluCounter, 10848 mSDsCounter, 0 mSdLazyCounter, 4555 mSolverCounterSat, 1295 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2770 SdHoareTripleChecker+Valid, 15947 SdHoareTripleChecker+Invalid, 5855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1295 IncrementalHoareTripleChecker+Valid, 4555 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.6s IncrementalHoareTripleChecker+Time [2021-12-07 00:03:21,046 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2770 Valid, 15947 Invalid, 5855 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1295 Valid, 4555 Invalid, 5 Unknown, 0 Unchecked, 37.6s Time] [2021-12-07 00:03:21,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18580 states. [2021-12-07 00:03:21,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18580 to 15413. [2021-12-07 00:03:21,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15413 states, 10915 states have (on average 1.3306459001374256) internal successors, (14524), 11120 states have internal predecessors, (14524), 3722 states have call successors, (3722), 718 states have call predecessors, (3722), 775 states have return successors, (4170), 3743 states have call predecessors, (4170), 3720 states have call successors, (4170) [2021-12-07 00:03:21,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15413 states to 15413 states and 22416 transitions. [2021-12-07 00:03:21,624 INFO L78 Accepts]: Start accepts. Automaton has 15413 states and 22416 transitions. Word has length 176 [2021-12-07 00:03:21,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:03:21,625 INFO L470 AbstractCegarLoop]: Abstraction has 15413 states and 22416 transitions. [2021-12-07 00:03:21,625 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-07 00:03:21,625 INFO L276 IsEmpty]: Start isEmpty. Operand 15413 states and 22416 transitions. [2021-12-07 00:03:21,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-12-07 00:03:21,635 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:03:21,636 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:03:21,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-07 00:03:21,636 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:03:21,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:03:21,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1638214362, now seen corresponding path program 1 times [2021-12-07 00:03:21,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:03:21,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293477534] [2021-12-07 00:03:21,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:03:21,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:03:21,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:03:22,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-07 00:03:22,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:03:22,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:03:22,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:03:22,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-07 00:03:22,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:03:22,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:03:22,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:03:22,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-07 00:03:22,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:03:22,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:03:22,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:03:22,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-07 00:03:22,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:03:22,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:03:22,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:03:22,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-07 00:03:22,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:03:22,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:03:22,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:03:22,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:03:22,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:03:22,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:03:22,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:03:22,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-07 00:03:22,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:03:22,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:03:22,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:03:22,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-07 00:03:22,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:03:22,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-07 00:03:22,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:03:22,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:03:22,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:03:22,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-07 00:03:22,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:03:22,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-07 00:03:22,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:03:22,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-07 00:03:22,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:03:22,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-07 00:03:22,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:03:22,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-07 00:03:22,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:03:22,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:03:22,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:03:22,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-07 00:03:22,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:03:22,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:03:22,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:03:22,671 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-12-07 00:03:22,671 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:03:22,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293477534] [2021-12-07 00:03:22,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293477534] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 00:03:22,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1730654236] [2021-12-07 00:03:22,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:03:22,672 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:03:22,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b688708d-a4db-4aa5-8634-07112cb56436/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:03:22,673 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b688708d-a4db-4aa5-8634-07112cb56436/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 00:03:22,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b688708d-a4db-4aa5-8634-07112cb56436/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-07 00:03:23,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:03:24,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 7412 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-07 00:03:24,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:03:24,266 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-12-07 00:03:24,267 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 00:03:24,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1730654236] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:03:24,267 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-07 00:03:24,267 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 8 [2021-12-07 00:03:24,268 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337070139] [2021-12-07 00:03:24,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:03:24,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 00:03:24,269 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:03:24,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 00:03:24,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-12-07 00:03:24,269 INFO L87 Difference]: Start difference. First operand 15413 states and 22416 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-07 00:03:24,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:03:24,736 INFO L93 Difference]: Finished difference Result 30818 states and 45499 transitions. [2021-12-07 00:03:24,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 00:03:24,737 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (31), 2 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 191 [2021-12-07 00:03:24,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:03:24,790 INFO L225 Difference]: With dead ends: 30818 [2021-12-07 00:03:24,790 INFO L226 Difference]: Without dead ends: 15417 [2021-12-07 00:03:24,842 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-12-07 00:03:24,842 INFO L933 BasicCegarLoop]: 5164 mSDtfsCounter, 0 mSDsluCounter, 5157 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10321 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:03:24,843 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 10321 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:03:24,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15417 states. [2021-12-07 00:03:25,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15417 to 15413. [2021-12-07 00:03:25,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15413 states, 10915 states have (on average 1.3295464956481906) internal successors, (14512), 11120 states have internal predecessors, (14512), 3722 states have call successors, (3722), 718 states have call predecessors, (3722), 775 states have return successors, (4170), 3743 states have call predecessors, (4170), 3720 states have call successors, (4170) [2021-12-07 00:03:25,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15413 states to 15413 states and 22404 transitions. [2021-12-07 00:03:25,327 INFO L78 Accepts]: Start accepts. Automaton has 15413 states and 22404 transitions. Word has length 191 [2021-12-07 00:03:25,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:03:25,328 INFO L470 AbstractCegarLoop]: Abstraction has 15413 states and 22404 transitions. [2021-12-07 00:03:25,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-07 00:03:25,328 INFO L276 IsEmpty]: Start isEmpty. Operand 15413 states and 22404 transitions. [2021-12-07 00:03:25,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2021-12-07 00:03:25,337 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:03:25,337 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:03:25,380 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b688708d-a4db-4aa5-8634-07112cb56436/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-07 00:03:25,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b688708d-a4db-4aa5-8634-07112cb56436/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:03:25,538 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:03:25,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:03:25,538 INFO L85 PathProgramCache]: Analyzing trace with hash 257060138, now seen corresponding path program 1 times [2021-12-07 00:03:25,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:03:25,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421391039] [2021-12-07 00:03:25,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:03:25,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:03:25,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:03:26,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-07 00:03:26,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:03:26,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:03:26,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:03:26,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-07 00:03:26,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:03:26,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:03:26,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:03:26,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-07 00:03:26,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:03:26,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:03:26,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:03:26,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-07 00:03:26,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:03:26,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:03:26,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:03:26,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-07 00:03:26,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:03:26,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:03:26,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:03:26,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:03:26,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:03:26,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:03:26,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:03:26,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-07 00:03:26,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:03:26,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:03:26,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:03:26,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-07 00:03:26,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:03:26,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-07 00:03:26,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:03:26,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:03:26,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:03:26,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-07 00:03:26,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:03:26,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-07 00:03:26,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:03:26,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:03:26,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:03:26,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 00:03:26,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:03:26,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:03:26,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:03:26,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-07 00:03:26,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:03:26,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-07 00:03:26,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:03:26,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:03:26,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:03:26,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-07 00:03:26,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:03:26,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:03:26,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:03:26,326 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2021-12-07 00:03:26,326 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:03:26,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421391039] [2021-12-07 00:03:26,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421391039] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:03:26,326 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:03:26,327 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 00:03:26,327 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713957516] [2021-12-07 00:03:26,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:03:26,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 00:03:26,327 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:03:26,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 00:03:26,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-07 00:03:26,328 INFO L87 Difference]: Start difference. First operand 15413 states and 22404 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-07 00:03:28,433 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:03:30,704 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:03:57,765 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:03:59,800 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:04:15,102 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:04:17,140 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:04:43,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:04:43,749 INFO L93 Difference]: Finished difference Result 48802 states and 73733 transitions. [2021-12-07 00:04:43,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 00:04:43,750 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 203 [2021-12-07 00:04:43,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:04:43,877 INFO L225 Difference]: With dead ends: 48802 [2021-12-07 00:04:43,877 INFO L226 Difference]: Without dead ends: 33401 [2021-12-07 00:04:43,929 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:04:43,930 INFO L933 BasicCegarLoop]: 5916 mSDtfsCounter, 12685 mSDsluCounter, 10187 mSDsCounter, 0 mSdLazyCounter, 9120 mSolverCounterSat, 7319 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 68.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13666 SdHoareTripleChecker+Valid, 16103 SdHoareTripleChecker+Invalid, 16445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 7319 IncrementalHoareTripleChecker+Valid, 9120 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 75.2s IncrementalHoareTripleChecker+Time [2021-12-07 00:04:43,930 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13666 Valid, 16103 Invalid, 16445 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [7319 Valid, 9120 Invalid, 6 Unknown, 0 Unchecked, 75.2s Time] [2021-12-07 00:04:43,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33401 states. [2021-12-07 00:04:44,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33401 to 25846. [2021-12-07 00:04:44,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25846 states, 18522 states have (on average 1.336950653277184) internal successors, (24763), 18826 states have internal predecessors, (24763), 6011 states have call successors, (6011), 1130 states have call predecessors, (6011), 1312 states have return successors, (7480), 6145 states have call predecessors, (7480), 6009 states have call successors, (7480) [2021-12-07 00:04:44,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25846 states to 25846 states and 38254 transitions. [2021-12-07 00:04:44,941 INFO L78 Accepts]: Start accepts. Automaton has 25846 states and 38254 transitions. Word has length 203 [2021-12-07 00:04:44,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:04:44,941 INFO L470 AbstractCegarLoop]: Abstraction has 25846 states and 38254 transitions. [2021-12-07 00:04:44,942 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-07 00:04:44,942 INFO L276 IsEmpty]: Start isEmpty. Operand 25846 states and 38254 transitions. [2021-12-07 00:04:44,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2021-12-07 00:04:44,949 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:04:44,949 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:04:44,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-07 00:04:44,949 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:04:44,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:04:44,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1496450679, now seen corresponding path program 1 times [2021-12-07 00:04:44,949 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:04:44,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016149268] [2021-12-07 00:04:44,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:04:44,950 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:04:45,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:04:45,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-07 00:04:45,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:04:45,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:04:45,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:04:45,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-07 00:04:45,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:04:45,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:04:45,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:04:45,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-07 00:04:45,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:04:45,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:04:45,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:04:45,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-07 00:04:45,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:04:45,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:04:45,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:04:45,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-07 00:04:45,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:04:45,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-07 00:04:45,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:04:45,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-07 00:04:45,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:04:45,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-07 00:04:45,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:04:45,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-07 00:04:45,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:04:45,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:04:45,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:04:45,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-07 00:04:45,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:04:45,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-07 00:04:45,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:04:45,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-07 00:04:45,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:04:45,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-07 00:04:45,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:04:45,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:04:45,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:04:45,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-07 00:04:45,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:04:45,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:04:45,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:04:45,755 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-12-07 00:04:45,756 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:04:45,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016149268] [2021-12-07 00:04:45,756 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016149268] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:04:45,756 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:04:45,756 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-07 00:04:45,756 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234733533] [2021-12-07 00:04:45,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:04:45,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 00:04:45,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:04:45,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 00:04:45,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:04:45,757 INFO L87 Difference]: Start difference. First operand 25846 states and 38254 transitions. Second operand has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 4 states have internal predecessors, (120), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-07 00:04:47,850 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:04:50,112 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:04:52,369 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:04:54,594 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []