./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b2e9a6-9382-4f89-904d-e73d1d6c5e3a/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b2e9a6-9382-4f89-904d-e73d1d6c5e3a/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b2e9a6-9382-4f89-904d-e73d1d6c5e3a/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b2e9a6-9382-4f89-904d-e73d1d6c5e3a/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b2e9a6-9382-4f89-904d-e73d1d6c5e3a/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b2e9a6-9382-4f89-904d-e73d1d6c5e3a/bin/uautomizer-vX5HgA9Q3a --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 0271a94e9583537c53cc956cc665cf103175977e84d74a6d4144b032ac11f321 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 17:27:53,405 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 17:27:53,407 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 17:27:53,428 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 17:27:53,429 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 17:27:53,430 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 17:27:53,431 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 17:27:53,433 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 17:27:53,435 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 17:27:53,436 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 17:27:53,437 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 17:27:53,439 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 17:27:53,439 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 17:27:53,440 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 17:27:53,442 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 17:27:53,443 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 17:27:53,444 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 17:27:53,445 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 17:27:53,447 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 17:27:53,449 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 17:27:53,450 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 17:27:53,460 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 17:27:53,461 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 17:27:53,462 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 17:27:53,466 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 17:27:53,466 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 17:27:53,467 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 17:27:53,468 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 17:27:53,468 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 17:27:53,469 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 17:27:53,470 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 17:27:53,471 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 17:27:53,472 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 17:27:53,473 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 17:27:53,483 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 17:27:53,484 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 17:27:53,484 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 17:27:53,485 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 17:27:53,485 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 17:27:53,486 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 17:27:53,487 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 17:27:53,490 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b2e9a6-9382-4f89-904d-e73d1d6c5e3a/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-21 17:27:53,529 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 17:27:53,529 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 17:27:53,529 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 17:27:53,530 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 17:27:53,541 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 17:27:53,541 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 17:27:53,542 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 17:27:53,542 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 17:27:53,542 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 17:27:53,542 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 17:27:53,543 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 17:27:53,544 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 17:27:53,544 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 17:27:53,544 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 17:27:53,544 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 17:27:53,545 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 17:27:53,545 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 17:27:53,545 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 17:27:53,545 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 17:27:53,546 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 17:27:53,546 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 17:27:53,546 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:27:53,546 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 17:27:53,547 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 17:27:53,547 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 17:27:53,547 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 17:27:53,548 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 17:27:53,548 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 17:27:53,548 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 17:27:53,548 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 17:27:53,548 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_f6b2e9a6-9382-4f89-904d-e73d1d6c5e3a/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b2e9a6-9382-4f89-904d-e73d1d6c5e3a/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0271a94e9583537c53cc956cc665cf103175977e84d74a6d4144b032ac11f321 [2022-11-21 17:27:53,822 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 17:27:53,851 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 17:27:53,855 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 17:27:53,857 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 17:27:53,858 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 17:27:53,860 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b2e9a6-9382-4f89-904d-e73d1d6c5e3a/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i [2022-11-21 17:27:57,042 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 17:27:57,781 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 17:27:57,782 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b2e9a6-9382-4f89-904d-e73d1d6c5e3a/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i [2022-11-21 17:27:57,858 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b2e9a6-9382-4f89-904d-e73d1d6c5e3a/bin/uautomizer-vX5HgA9Q3a/data/86243a4c6/c4ec971f60284f4ea164f3c5c88a1795/FLAG9cf1bb6c0 [2022-11-21 17:27:57,877 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b2e9a6-9382-4f89-904d-e73d1d6c5e3a/bin/uautomizer-vX5HgA9Q3a/data/86243a4c6/c4ec971f60284f4ea164f3c5c88a1795 [2022-11-21 17:27:57,881 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 17:27:57,883 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 17:27:57,889 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 17:27:57,889 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 17:27:57,893 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 17:27:57,894 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:27:57" (1/1) ... [2022-11-21 17:27:57,895 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22e35e0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:27:57, skipping insertion in model container [2022-11-21 17:27:57,895 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:27:57" (1/1) ... [2022-11-21 17:27:57,903 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 17:27:58,042 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 17:27:58,784 WARN L1259 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6098] [2022-11-21 17:27:58,785 WARN L1259 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [6099-6100] [2022-11-21 17:27:59,428 WARN L237 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_f6b2e9a6-9382-4f89-904d-e73d1d6c5e3a/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i[187542,187555] [2022-11-21 17:28:00,906 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:28:00,960 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 17:28:01,089 WARN L1259 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6098] [2022-11-21 17:28:01,089 WARN L1259 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [6099-6100] [2022-11-21 17:28:01,108 WARN L237 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_f6b2e9a6-9382-4f89-904d-e73d1d6c5e3a/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i[187542,187555] [2022-11-21 17:28:01,579 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:28:01,737 INFO L208 MainTranslator]: Completed translation [2022-11-21 17:28:01,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:28:01 WrapperNode [2022-11-21 17:28:01,738 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 17:28:01,741 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 17:28:01,741 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 17:28:01,741 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 17:28:01,750 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:28:01" (1/1) ... [2022-11-21 17:28:01,864 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:28:01" (1/1) ... [2022-11-21 17:28:02,115 INFO L138 Inliner]: procedures = 286, calls = 2906, calls flagged for inlining = 145, calls inlined = 128, statements flattened = 5532 [2022-11-21 17:28:02,116 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 17:28:02,117 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 17:28:02,117 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 17:28:02,117 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 17:28:02,127 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:28:01" (1/1) ... [2022-11-21 17:28:02,127 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:28:01" (1/1) ... [2022-11-21 17:28:02,193 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:28:01" (1/1) ... [2022-11-21 17:28:02,193 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:28:01" (1/1) ... [2022-11-21 17:28:02,313 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:28:01" (1/1) ... [2022-11-21 17:28:02,333 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:28:01" (1/1) ... [2022-11-21 17:28:02,369 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:28:01" (1/1) ... [2022-11-21 17:28:02,391 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:28:01" (1/1) ... [2022-11-21 17:28:02,427 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 17:28:02,430 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 17:28:02,430 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 17:28:02,431 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 17:28:02,431 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:28:01" (1/1) ... [2022-11-21 17:28:02,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:28:02,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b2e9a6-9382-4f89-904d-e73d1d6c5e3a/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:28:02,464 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b2e9a6-9382-4f89-904d-e73d1d6c5e3a/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 17:28:02,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b2e9a6-9382-4f89-904d-e73d1d6c5e3a/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 17:28:02,510 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2022-11-21 17:28:02,511 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2022-11-21 17:28:02,511 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-21 17:28:02,511 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2022-11-21 17:28:02,512 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2022-11-21 17:28:02,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-21 17:28:02,513 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-21 17:28:02,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-21 17:28:02,513 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-21 17:28:02,513 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-21 17:28:02,513 INFO L130 BoogieDeclarations]: Found specification of procedure send_to_lecd [2022-11-21 17:28:02,514 INFO L138 BoogieDeclarations]: Found implementation of procedure send_to_lecd [2022-11-21 17:28:02,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-21 17:28:02,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-21 17:28:02,514 INFO L130 BoogieDeclarations]: Found specification of procedure __lec_arp_check_expire [2022-11-21 17:28:02,514 INFO L138 BoogieDeclarations]: Found implementation of procedure __lec_arp_check_expire [2022-11-21 17:28:02,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-21 17:28:02,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-21 17:28:02,515 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-21 17:28:02,515 INFO L130 BoogieDeclarations]: Found specification of procedure lec_seq_stop [2022-11-21 17:28:02,516 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_seq_stop [2022-11-21 17:28:02,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-21 17:28:02,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-21 17:28:02,517 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_sub [2022-11-21 17:28:02,517 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_sub [2022-11-21 17:28:02,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-21 17:28:02,517 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-21 17:28:02,517 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-21 17:28:02,518 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-21 17:28:02,519 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-21 17:28:02,519 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-21 17:28:02,519 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-11-21 17:28:02,520 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-11-21 17:28:02,520 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_find [2022-11-21 17:28:02,521 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_find [2022-11-21 17:28:02,521 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-21 17:28:02,521 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-21 17:28:02,521 INFO L130 BoogieDeclarations]: Found specification of procedure sk_atm [2022-11-21 17:28:02,521 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_atm [2022-11-21 17:28:02,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2022-11-21 17:28:02,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2022-11-21 17:28:02,522 INFO L130 BoogieDeclarations]: Found specification of procedure atm_may_send [2022-11-21 17:28:02,522 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_may_send [2022-11-21 17:28:02,522 INFO L130 BoogieDeclarations]: Found specification of procedure lec_seq_open [2022-11-21 17:28:02,523 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_seq_open [2022-11-21 17:28:02,523 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-21 17:28:02,523 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-21 17:28:02,523 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-21 17:28:02,523 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-21 17:28:02,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 17:28:02,524 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-21 17:28:02,524 INFO L130 BoogieDeclarations]: Found specification of procedure lec_tx_timeout [2022-11-21 17:28:02,524 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_tx_timeout [2022-11-21 17:28:02,525 INFO L130 BoogieDeclarations]: Found specification of procedure hlist_empty [2022-11-21 17:28:02,525 INFO L138 BoogieDeclarations]: Found implementation of procedure hlist_empty [2022-11-21 17:28:02,525 INFO L130 BoogieDeclarations]: Found specification of procedure lec_flush_complete [2022-11-21 17:28:02,525 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_flush_complete [2022-11-21 17:28:02,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-21 17:28:02,526 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-21 17:28:02,526 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-21 17:28:02,526 INFO L130 BoogieDeclarations]: Found specification of procedure lec_send [2022-11-21 17:28:02,526 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_send [2022-11-21 17:28:02,526 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2022-11-21 17:28:02,527 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-21 17:28:02,527 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-21 17:28:02,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 17:28:02,527 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add [2022-11-21 17:28:02,527 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add [2022-11-21 17:28:02,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-21 17:28:02,528 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-11-21 17:28:02,528 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-11-21 17:28:02,528 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-21 17:28:02,528 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-21 17:28:02,528 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-21 17:28:02,528 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-21 17:28:02,529 INFO L130 BoogieDeclarations]: Found specification of procedure lec_tbl_walk [2022-11-21 17:28:02,529 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_tbl_walk [2022-11-21 17:28:02,529 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-21 17:28:02,529 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-21 17:28:02,530 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-21 17:28:02,530 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-21 17:28:02,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-21 17:28:02,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-21 17:28:02,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-21 17:28:02,531 INFO L130 BoogieDeclarations]: Found specification of procedure atm_force_charge [2022-11-21 17:28:02,532 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_force_charge [2022-11-21 17:28:02,532 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-21 17:28:02,532 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-21 17:28:02,532 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_check_expire [2022-11-21 17:28:02,532 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_check_expire [2022-11-21 17:28:02,533 INFO L130 BoogieDeclarations]: Found specification of procedure atm_return [2022-11-21 17:28:02,533 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_return [2022-11-21 17:28:02,533 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-21 17:28:02,533 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-21 17:28:02,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-21 17:28:02,533 INFO L130 BoogieDeclarations]: Found specification of procedure dev_put [2022-11-21 17:28:02,533 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_put [2022-11-21 17:28:02,534 INFO L130 BoogieDeclarations]: Found specification of procedure lec_get_idx [2022-11-21 17:28:02,534 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_get_idx [2022-11-21 17:28:02,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 17:28:02,534 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_add [2022-11-21 17:28:02,534 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_add [2022-11-21 17:28:02,534 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-21 17:28:02,535 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-21 17:28:02,535 INFO L130 BoogieDeclarations]: Found specification of procedure hlist_add_head [2022-11-21 17:28:02,535 INFO L138 BoogieDeclarations]: Found implementation of procedure hlist_add_head [2022-11-21 17:28:02,536 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-11-21 17:28:02,536 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-11-21 17:28:02,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-21 17:28:02,536 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-21 17:28:02,536 INFO L130 BoogieDeclarations]: Found specification of procedure lec_change_mtu [2022-11-21 17:28:02,536 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_change_mtu [2022-11-21 17:28:02,536 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_copy [2022-11-21 17:28:02,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_copy [2022-11-21 17:28:02,538 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-21 17:28:02,541 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-21 17:28:02,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-21 17:28:02,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-21 17:28:02,542 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_1 [2022-11-21 17:28:02,543 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_1 [2022-11-21 17:28:02,544 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-21 17:28:02,545 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-21 17:28:02,545 INFO L130 BoogieDeclarations]: Found specification of procedure lec_seq_show [2022-11-21 17:28:02,546 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_seq_show [2022-11-21 17:28:02,552 INFO L130 BoogieDeclarations]: Found specification of procedure vcc_release_async [2022-11-21 17:28:02,552 INFO L138 BoogieDeclarations]: Found implementation of procedure vcc_release_async [2022-11-21 17:28:02,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 17:28:02,553 INFO L130 BoogieDeclarations]: Found specification of procedure hlist_del [2022-11-21 17:28:02,553 INFO L138 BoogieDeclarations]: Found implementation of procedure hlist_del [2022-11-21 17:28:02,553 INFO L130 BoogieDeclarations]: Found specification of procedure seq_release_private [2022-11-21 17:28:02,553 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_release_private [2022-11-21 17:28:02,554 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-21 17:28:02,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-21 17:28:02,554 INFO L130 BoogieDeclarations]: Found specification of procedure lec_set_multicast_list [2022-11-21 17:28:02,554 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_set_multicast_list [2022-11-21 17:28:02,555 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_put [2022-11-21 17:28:02,555 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_put [2022-11-21 17:28:02,555 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_hold [2022-11-21 17:28:02,555 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_hold [2022-11-21 17:28:02,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-21 17:28:02,555 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2022-11-21 17:28:02,555 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2022-11-21 17:28:02,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 17:28:02,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-21 17:28:02,556 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-21 17:28:02,556 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_equal [2022-11-21 17:28:02,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_equal [2022-11-21 17:28:02,556 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-21 17:28:02,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-21 17:28:02,557 INFO L130 BoogieDeclarations]: Found specification of procedure lec_atm_send [2022-11-21 17:28:02,557 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_atm_send [2022-11-21 17:28:02,557 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2022-11-21 17:28:02,557 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2022-11-21 17:28:02,557 INFO L130 BoogieDeclarations]: Found specification of procedure kmemdup [2022-11-21 17:28:02,557 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemdup [2022-11-21 17:28:02,557 INFO L130 BoogieDeclarations]: Found specification of procedure lec_atm_close [2022-11-21 17:28:02,558 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_atm_close [2022-11-21 17:28:02,558 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-21 17:28:02,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-21 17:28:02,559 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2022-11-21 17:28:02,559 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2022-11-21 17:28:02,559 INFO L130 BoogieDeclarations]: Found specification of procedure make_entry [2022-11-21 17:28:02,559 INFO L138 BoogieDeclarations]: Found implementation of procedure make_entry [2022-11-21 17:28:02,559 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-21 17:28:02,560 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-21 17:28:02,560 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_remove [2022-11-21 17:28:02,560 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_remove [2022-11-21 17:28:02,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 17:28:02,561 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_update [2022-11-21 17:28:02,561 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_update [2022-11-21 17:28:02,561 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_clear_vccs [2022-11-21 17:28:02,561 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_clear_vccs [2022-11-21 17:28:02,561 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_to_linear_data [2022-11-21 17:28:02,561 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_to_linear_data [2022-11-21 17:28:02,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 17:28:02,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 17:28:03,485 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 17:28:03,488 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 17:28:03,854 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-21 17:28:12,067 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-21 17:28:14,935 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##30: assume !(0 != (lec_addr_delete_~____ptr___0~4#1.base + lec_addr_delete_~____ptr___0~4#1.offset) % 18446744073709551616);lec_addr_delete_~tmp___2~14#1.base, lec_addr_delete_~tmp___2~14#1.offset := 0, 0;lec_addr_delete_~entry~10#1.base, lec_addr_delete_~entry~10#1.offset := lec_addr_delete_~tmp___2~14#1.base, lec_addr_delete_~tmp___2~14#1.offset; [2022-11-21 17:28:14,936 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##29: assume 0 != (lec_addr_delete_~____ptr___0~4#1.base + lec_addr_delete_~____ptr___0~4#1.offset) % 18446744073709551616;lec_addr_delete_~__mptr___0~5#1.base, lec_addr_delete_~__mptr___0~5#1.offset := lec_addr_delete_~____ptr___0~4#1.base, lec_addr_delete_~____ptr___0~4#1.offset;lec_addr_delete_~tmp___2~14#1.base, lec_addr_delete_~tmp___2~14#1.offset := lec_addr_delete_~__mptr___0~5#1.base, lec_addr_delete_~__mptr___0~5#1.offset; [2022-11-21 17:28:22,012 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 17:28:22,040 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 17:28:22,040 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-21 17:28:22,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:28:22 BoogieIcfgContainer [2022-11-21 17:28:22,046 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 17:28:22,048 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 17:28:22,049 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 17:28:22,052 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 17:28:22,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 05:27:57" (1/3) ... [2022-11-21 17:28:22,054 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3195ebb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:28:22, skipping insertion in model container [2022-11-21 17:28:22,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:28:01" (2/3) ... [2022-11-21 17:28:22,055 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3195ebb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:28:22, skipping insertion in model container [2022-11-21 17:28:22,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:28:22" (3/3) ... [2022-11-21 17:28:22,057 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i [2022-11-21 17:28:22,076 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 17:28:22,076 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 17:28:22,180 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 17:28:22,187 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@524722f7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 17:28:22,187 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 17:28:22,197 INFO L276 IsEmpty]: Start isEmpty. Operand has 1663 states, 1223 states have (on average 1.3892068683565004) internal successors, (1699), 1263 states have internal predecessors, (1699), 361 states have call successors, (361), 78 states have call predecessors, (361), 77 states have return successors, (352), 342 states have call predecessors, (352), 352 states have call successors, (352) [2022-11-21 17:28:22,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-21 17:28:22,230 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:28:22,231 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:28:22,232 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:28:22,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:28:22,239 INFO L85 PathProgramCache]: Analyzing trace with hash 404360666, now seen corresponding path program 1 times [2022-11-21 17:28:22,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:28:22,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89541066] [2022-11-21 17:28:22,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:28:22,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:28:22,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:23,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 17:28:23,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:23,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 17:28:23,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:23,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 17:28:23,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:23,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-21 17:28:23,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:23,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-21 17:28:23,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:23,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 17:28:23,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:23,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-21 17:28:23,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:23,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-21 17:28:23,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:23,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-21 17:28:23,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:23,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-21 17:28:23,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:23,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-21 17:28:23,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:23,282 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-21 17:28:23,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:28:23,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89541066] [2022-11-21 17:28:23,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89541066] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:28:23,284 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:28:23,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 17:28:23,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149814054] [2022-11-21 17:28:23,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:28:23,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 17:28:23,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:28:23,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 17:28:23,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 17:28:23,326 INFO L87 Difference]: Start difference. First operand has 1663 states, 1223 states have (on average 1.3892068683565004) internal successors, (1699), 1263 states have internal predecessors, (1699), 361 states have call successors, (361), 78 states have call predecessors, (361), 77 states have return successors, (352), 342 states have call predecessors, (352), 352 states have call successors, (352) Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 17:28:25,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:28:29,987 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:28:40,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:28:40,923 INFO L93 Difference]: Finished difference Result 4978 states and 7463 transitions. [2022-11-21 17:28:40,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 17:28:40,932 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 86 [2022-11-21 17:28:40,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:28:40,975 INFO L225 Difference]: With dead ends: 4978 [2022-11-21 17:28:40,976 INFO L226 Difference]: Without dead ends: 3265 [2022-11-21 17:28:40,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 17:28:41,004 INFO L413 NwaCegarLoop]: 2353 mSDtfsCounter, 2761 mSDsluCounter, 2991 mSDsCounter, 0 mSdLazyCounter, 1872 mSolverCounterSat, 757 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3016 SdHoareTripleChecker+Valid, 5344 SdHoareTripleChecker+Invalid, 2631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 757 IncrementalHoareTripleChecker+Valid, 1872 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.0s IncrementalHoareTripleChecker+Time [2022-11-21 17:28:41,007 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3016 Valid, 5344 Invalid, 2631 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [757 Valid, 1872 Invalid, 2 Unknown, 0 Unchecked, 17.0s Time] [2022-11-21 17:28:41,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3265 states. [2022-11-21 17:28:41,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3265 to 3154. [2022-11-21 17:28:41,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3154 states, 2334 states have (on average 1.386032562125107) internal successors, (3235), 2392 states have internal predecessors, (3235), 669 states have call successors, (669), 151 states have call predecessors, (669), 150 states have return successors, (668), 648 states have call predecessors, (668), 668 states have call successors, (668) [2022-11-21 17:28:41,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3154 states to 3154 states and 4572 transitions. [2022-11-21 17:28:41,330 INFO L78 Accepts]: Start accepts. Automaton has 3154 states and 4572 transitions. Word has length 86 [2022-11-21 17:28:41,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:28:41,332 INFO L495 AbstractCegarLoop]: Abstraction has 3154 states and 4572 transitions. [2022-11-21 17:28:41,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 17:28:41,334 INFO L276 IsEmpty]: Start isEmpty. Operand 3154 states and 4572 transitions. [2022-11-21 17:28:41,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-21 17:28:41,345 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:28:41,345 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:28:41,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 17:28:41,346 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:28:41,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:28:41,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1192602966, now seen corresponding path program 1 times [2022-11-21 17:28:41,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:28:41,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488808781] [2022-11-21 17:28:41,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:28:41,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:28:41,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:42,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 17:28:42,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:42,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 17:28:42,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:42,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 17:28:42,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:42,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-21 17:28:42,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:42,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-21 17:28:42,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:42,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 17:28:42,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:42,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-21 17:28:42,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:42,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-21 17:28:42,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:42,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-21 17:28:42,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:42,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-21 17:28:42,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:42,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-21 17:28:42,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:42,278 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-21 17:28:42,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:28:42,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488808781] [2022-11-21 17:28:42,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488808781] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:28:42,279 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:28:42,280 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 17:28:42,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894970931] [2022-11-21 17:28:42,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:28:42,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 17:28:42,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:28:42,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 17:28:42,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:28:42,282 INFO L87 Difference]: Start difference. First operand 3154 states and 4572 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 17:28:44,910 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:28:51,343 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:29:12,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:29:12,677 INFO L93 Difference]: Finished difference Result 16030 states and 24329 transitions. [2022-11-21 17:29:12,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 17:29:12,682 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 98 [2022-11-21 17:29:12,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:29:12,779 INFO L225 Difference]: With dead ends: 16030 [2022-11-21 17:29:12,780 INFO L226 Difference]: Without dead ends: 12900 [2022-11-21 17:29:12,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-11-21 17:29:12,808 INFO L413 NwaCegarLoop]: 3209 mSDtfsCounter, 10399 mSDsluCounter, 5938 mSDsCounter, 0 mSdLazyCounter, 4684 mSolverCounterSat, 3021 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11091 SdHoareTripleChecker+Valid, 9147 SdHoareTripleChecker+Invalid, 7707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3021 IncrementalHoareTripleChecker+Valid, 4684 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.3s IncrementalHoareTripleChecker+Time [2022-11-21 17:29:12,808 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11091 Valid, 9147 Invalid, 7707 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3021 Valid, 4684 Invalid, 2 Unknown, 0 Unchecked, 29.3s Time] [2022-11-21 17:29:12,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12900 states. [2022-11-21 17:29:13,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12900 to 12494. [2022-11-21 17:29:13,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12494 states, 9247 states have (on average 1.385638585487185) internal successors, (12813), 9481 states have internal predecessors, (12813), 2637 states have call successors, (2637), 598 states have call predecessors, (2637), 609 states have return successors, (3090), 2566 states have call predecessors, (3090), 2636 states have call successors, (3090) [2022-11-21 17:29:13,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12494 states to 12494 states and 18540 transitions. [2022-11-21 17:29:13,601 INFO L78 Accepts]: Start accepts. Automaton has 12494 states and 18540 transitions. Word has length 98 [2022-11-21 17:29:13,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:29:13,603 INFO L495 AbstractCegarLoop]: Abstraction has 12494 states and 18540 transitions. [2022-11-21 17:29:13,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 17:29:13,605 INFO L276 IsEmpty]: Start isEmpty. Operand 12494 states and 18540 transitions. [2022-11-21 17:29:13,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-21 17:29:13,609 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:29:13,610 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:29:13,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 17:29:13,611 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:29:13,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:29:13,611 INFO L85 PathProgramCache]: Analyzing trace with hash 988486694, now seen corresponding path program 1 times [2022-11-21 17:29:13,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:29:13,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216734364] [2022-11-21 17:29:13,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:29:13,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:29:13,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:14,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 17:29:14,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:14,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 17:29:14,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:14,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 17:29:14,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:14,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-21 17:29:14,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:14,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-21 17:29:14,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:14,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 17:29:14,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:14,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-21 17:29:14,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:14,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-21 17:29:14,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:14,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-21 17:29:14,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:14,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-21 17:29:14,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:14,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-21 17:29:14,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:14,412 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-21 17:29:14,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:29:14,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216734364] [2022-11-21 17:29:14,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216734364] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:29:14,413 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:29:14,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 17:29:14,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267695121] [2022-11-21 17:29:14,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:29:14,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 17:29:14,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:29:14,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 17:29:14,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:29:14,415 INFO L87 Difference]: Start difference. First operand 12494 states and 18540 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 17:29:17,102 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:29:25,156 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:29:28,733 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:29:53,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:29:53,555 INFO L93 Difference]: Finished difference Result 63828 states and 101663 transitions. [2022-11-21 17:29:53,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 17:29:53,556 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 97 [2022-11-21 17:29:53,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:29:53,966 INFO L225 Difference]: With dead ends: 63828 [2022-11-21 17:29:53,967 INFO L226 Difference]: Without dead ends: 51358 [2022-11-21 17:29:54,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-11-21 17:29:54,112 INFO L413 NwaCegarLoop]: 3158 mSDtfsCounter, 7117 mSDsluCounter, 10367 mSDsCounter, 0 mSdLazyCounter, 6875 mSolverCounterSat, 1047 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7811 SdHoareTripleChecker+Valid, 13525 SdHoareTripleChecker+Invalid, 7925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1047 IncrementalHoareTripleChecker+Valid, 6875 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.9s IncrementalHoareTripleChecker+Time [2022-11-21 17:29:54,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7811 Valid, 13525 Invalid, 7925 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1047 Valid, 6875 Invalid, 3 Unknown, 0 Unchecked, 36.9s Time] [2022-11-21 17:29:54,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51358 states. [2022-11-21 17:29:57,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51358 to 49826. [2022-11-21 17:29:57,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49826 states, 36885 states have (on average 1.3841127829741087) internal successors, (51053), 37805 states have internal predecessors, (51053), 10491 states have call successors, (10491), 2386 states have call predecessors, (10491), 2449 states have return successors, (15530), 10242 states have call predecessors, (15530), 10490 states have call successors, (15530) [2022-11-21 17:29:57,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49826 states to 49826 states and 77074 transitions. [2022-11-21 17:29:57,961 INFO L78 Accepts]: Start accepts. Automaton has 49826 states and 77074 transitions. Word has length 97 [2022-11-21 17:29:57,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:29:57,962 INFO L495 AbstractCegarLoop]: Abstraction has 49826 states and 77074 transitions. [2022-11-21 17:29:57,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 17:29:57,962 INFO L276 IsEmpty]: Start isEmpty. Operand 49826 states and 77074 transitions. [2022-11-21 17:29:57,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-11-21 17:29:57,965 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:29:57,965 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:29:57,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 17:29:57,968 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:29:57,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:29:57,968 INFO L85 PathProgramCache]: Analyzing trace with hash 624952606, now seen corresponding path program 1 times [2022-11-21 17:29:57,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:29:57,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957250976] [2022-11-21 17:29:57,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:29:57,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:29:58,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:58,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 17:29:58,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:58,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 17:29:58,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:58,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 17:29:58,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:58,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-21 17:29:58,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:58,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-21 17:29:58,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:58,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 17:29:58,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:58,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-21 17:29:58,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:58,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-21 17:29:58,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:58,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-21 17:29:58,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:58,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-21 17:29:58,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:58,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-21 17:29:58,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:58,859 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-21 17:29:58,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:29:58,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957250976] [2022-11-21 17:29:58,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957250976] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:29:58,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:29:58,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 17:29:58,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493434902] [2022-11-21 17:29:58,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:29:58,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 17:29:58,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:29:58,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 17:29:58,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:29:58,863 INFO L87 Difference]: Start difference. First operand 49826 states and 77074 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 17:30:01,653 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:30:08,103 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:30:10,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:30:15,045 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:30:41,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:30:41,873 INFO L93 Difference]: Finished difference Result 254644 states and 447223 transitions. [2022-11-21 17:30:41,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 17:30:41,874 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 96 [2022-11-21 17:30:41,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:30:44,232 INFO L225 Difference]: With dead ends: 254644 [2022-11-21 17:30:44,232 INFO L226 Difference]: Without dead ends: 204842 [2022-11-21 17:30:45,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-11-21 17:30:45,281 INFO L413 NwaCegarLoop]: 3211 mSDtfsCounter, 10391 mSDsluCounter, 5947 mSDsCounter, 0 mSdLazyCounter, 4655 mSolverCounterSat, 3063 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11089 SdHoareTripleChecker+Valid, 9158 SdHoareTripleChecker+Invalid, 7720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3063 IncrementalHoareTripleChecker+Valid, 4655 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.4s IncrementalHoareTripleChecker+Time [2022-11-21 17:30:45,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11089 Valid, 9158 Invalid, 7720 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3063 Valid, 4655 Invalid, 2 Unknown, 0 Unchecked, 33.4s Time] [2022-11-21 17:30:45,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204842 states. [2022-11-21 17:30:57,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204842 to 198750. [2022-11-21 17:30:57,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198750 states, 147245 states have (on average 1.3826819246833508) internal successors, (203593), 150721 states have internal predecessors, (203593), 41771 states have call successors, (41771), 9506 states have call predecessors, (41771), 9733 states have return successors, (89356), 40786 states have call predecessors, (89356), 41770 states have call successors, (89356) [2022-11-21 17:31:00,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198750 states to 198750 states and 334720 transitions. [2022-11-21 17:31:00,689 INFO L78 Accepts]: Start accepts. Automaton has 198750 states and 334720 transitions. Word has length 96 [2022-11-21 17:31:00,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:31:00,690 INFO L495 AbstractCegarLoop]: Abstraction has 198750 states and 334720 transitions. [2022-11-21 17:31:00,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 17:31:00,691 INFO L276 IsEmpty]: Start isEmpty. Operand 198750 states and 334720 transitions. [2022-11-21 17:31:00,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-21 17:31:00,695 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:31:00,695 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:31:00,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 17:31:00,696 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:31:00,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:31:00,697 INFO L85 PathProgramCache]: Analyzing trace with hash 749734238, now seen corresponding path program 1 times [2022-11-21 17:31:00,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:31:00,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367791175] [2022-11-21 17:31:00,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:31:00,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:31:00,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:01,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 17:31:01,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:01,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 17:31:01,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:01,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 17:31:01,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:01,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-21 17:31:01,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:01,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-21 17:31:01,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:01,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 17:31:01,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:01,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-21 17:31:01,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:01,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-21 17:31:01,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:01,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-21 17:31:01,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:01,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-21 17:31:01,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:01,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-21 17:31:01,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:01,707 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-21 17:31:01,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:31:01,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367791175] [2022-11-21 17:31:01,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367791175] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:31:01,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:31:01,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 17:31:01,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097284511] [2022-11-21 17:31:01,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:31:01,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 17:31:01,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:31:01,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 17:31:01,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:31:01,711 INFO L87 Difference]: Start difference. First operand 198750 states and 334720 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 17:31:04,398 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:31:08,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:31:19,170 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:31:21,653 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:31:26,110 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []