./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 4e7fbc69 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_8f89bd0c-9964-43a6-9402-2d86f6597774/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f89bd0c-9964-43a6-9402-2d86f6597774/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f89bd0c-9964-43a6-9402-2d86f6597774/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f89bd0c-9964-43a6-9402-2d86f6597774/bin/uautomizer-QkZJyEgLgS/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_8f89bd0c-9964-43a6-9402-2d86f6597774/bin/uautomizer-QkZJyEgLgS/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f89bd0c-9964-43a6-9402-2d86f6597774/bin/uautomizer-QkZJyEgLgS --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-4e7fbc6 [2022-11-23 03:47:09,764 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 03:47:09,766 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 03:47:09,806 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 03:47:09,807 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 03:47:09,811 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 03:47:09,814 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 03:47:09,818 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 03:47:09,821 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 03:47:09,824 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 03:47:09,826 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 03:47:09,829 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 03:47:09,830 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 03:47:09,835 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 03:47:09,837 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 03:47:09,839 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 03:47:09,841 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 03:47:09,842 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 03:47:09,844 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 03:47:09,851 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 03:47:09,853 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 03:47:09,855 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 03:47:09,857 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 03:47:09,858 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 03:47:09,869 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 03:47:09,870 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 03:47:09,870 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 03:47:09,872 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 03:47:09,873 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 03:47:09,874 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 03:47:09,875 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 03:47:09,876 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 03:47:09,878 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 03:47:09,880 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 03:47:09,882 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 03:47:09,882 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 03:47:09,883 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 03:47:09,883 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 03:47:09,883 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 03:47:09,885 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 03:47:09,886 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 03:47:09,887 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f89bd0c-9964-43a6-9402-2d86f6597774/bin/uautomizer-QkZJyEgLgS/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-23 03:47:09,930 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 03:47:09,930 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 03:47:09,933 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 03:47:09,934 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 03:47:09,935 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 03:47:09,935 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 03:47:09,936 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 03:47:09,936 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 03:47:09,936 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 03:47:09,936 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 03:47:09,938 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 03:47:09,938 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 03:47:09,938 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 03:47:09,938 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 03:47:09,938 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 03:47:09,939 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 03:47:09,939 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 03:47:09,939 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 03:47:09,939 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 03:47:09,939 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 03:47:09,940 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 03:47:09,940 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:47:09,940 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 03:47:09,941 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 03:47:09,941 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 03:47:09,941 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 03:47:09,941 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 03:47:09,942 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 03:47:09,942 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 03:47:09,942 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 03:47:09,943 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 03:47:09,943 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_8f89bd0c-9964-43a6-9402-2d86f6597774/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f89bd0c-9964-43a6-9402-2d86f6597774/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0271a94e9583537c53cc956cc665cf103175977e84d74a6d4144b032ac11f321 [2022-11-23 03:47:10,202 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 03:47:10,228 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 03:47:10,231 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 03:47:10,232 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 03:47:10,233 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 03:47:10,234 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f89bd0c-9964-43a6-9402-2d86f6597774/bin/uautomizer-QkZJyEgLgS/../../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 [2022-11-23 03:47:13,373 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 03:47:14,166 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 03:47:14,167 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f89bd0c-9964-43a6-9402-2d86f6597774/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 [2022-11-23 03:47:14,239 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f89bd0c-9964-43a6-9402-2d86f6597774/bin/uautomizer-QkZJyEgLgS/data/3c7d9bcc0/8f443b3e554d48019d553396c0c78279/FLAGfc00d848c [2022-11-23 03:47:14,260 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f89bd0c-9964-43a6-9402-2d86f6597774/bin/uautomizer-QkZJyEgLgS/data/3c7d9bcc0/8f443b3e554d48019d553396c0c78279 [2022-11-23 03:47:14,265 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 03:47:14,267 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 03:47:14,272 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 03:47:14,272 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 03:47:14,276 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 03:47:14,277 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:47:14" (1/1) ... [2022-11-23 03:47:14,278 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@491d26aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:47:14, skipping insertion in model container [2022-11-23 03:47:14,278 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:47:14" (1/1) ... [2022-11-23 03:47:14,286 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 03:47:14,460 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 03:47:15,198 WARN L1259 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6098] [2022-11-23 03:47:15,199 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] [2022-11-23 03:47:15,714 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_8f89bd0c-9964-43a6-9402-2d86f6597774/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] [2022-11-23 03:47:17,161 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:47:17,198 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 03:47:17,300 WARN L1259 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6098] [2022-11-23 03:47:17,302 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] [2022-11-23 03:47:17,326 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_8f89bd0c-9964-43a6-9402-2d86f6597774/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] [2022-11-23 03:47:17,771 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:47:17,892 INFO L208 MainTranslator]: Completed translation [2022-11-23 03:47:17,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:47:17 WrapperNode [2022-11-23 03:47:17,893 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 03:47:17,894 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 03:47:17,895 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 03:47:17,895 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 03:47:17,905 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:47:17" (1/1) ... [2022-11-23 03:47:18,036 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:47:17" (1/1) ... [2022-11-23 03:47:18,262 INFO L138 Inliner]: procedures = 286, calls = 2906, calls flagged for inlining = 145, calls inlined = 128, statements flattened = 5532 [2022-11-23 03:47:18,262 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 03:47:18,263 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 03:47:18,263 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 03:47:18,263 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 03:47:18,273 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:47:17" (1/1) ... [2022-11-23 03:47:18,274 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:47:17" (1/1) ... [2022-11-23 03:47:18,316 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:47:17" (1/1) ... [2022-11-23 03:47:18,327 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:47:17" (1/1) ... [2022-11-23 03:47:18,532 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:47:17" (1/1) ... [2022-11-23 03:47:18,552 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:47:17" (1/1) ... [2022-11-23 03:47:18,575 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:47:17" (1/1) ... [2022-11-23 03:47:18,589 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:47:17" (1/1) ... [2022-11-23 03:47:18,627 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 03:47:18,628 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 03:47:18,628 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 03:47:18,628 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 03:47:18,629 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:47:17" (1/1) ... [2022-11-23 03:47:18,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:47:18,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f89bd0c-9964-43a6-9402-2d86f6597774/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:47:18,660 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f89bd0c-9964-43a6-9402-2d86f6597774/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 03:47:18,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f89bd0c-9964-43a6-9402-2d86f6597774/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 03:47:18,778 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2022-11-23 03:47:18,778 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2022-11-23 03:47:18,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-23 03:47:18,779 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2022-11-23 03:47:18,779 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2022-11-23 03:47:18,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-23 03:47:18,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-23 03:47:18,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-23 03:47:18,780 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-23 03:47:18,780 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-23 03:47:18,780 INFO L130 BoogieDeclarations]: Found specification of procedure send_to_lecd [2022-11-23 03:47:18,780 INFO L138 BoogieDeclarations]: Found implementation of procedure send_to_lecd [2022-11-23 03:47:18,780 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-23 03:47:18,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-23 03:47:18,781 INFO L130 BoogieDeclarations]: Found specification of procedure __lec_arp_check_expire [2022-11-23 03:47:18,781 INFO L138 BoogieDeclarations]: Found implementation of procedure __lec_arp_check_expire [2022-11-23 03:47:18,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-23 03:47:18,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-23 03:47:18,781 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-23 03:47:18,781 INFO L130 BoogieDeclarations]: Found specification of procedure lec_seq_stop [2022-11-23 03:47:18,782 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_seq_stop [2022-11-23 03:47:18,782 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-23 03:47:18,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-23 03:47:18,782 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_sub [2022-11-23 03:47:18,782 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_sub [2022-11-23 03:47:18,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-23 03:47:18,783 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-23 03:47:18,783 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-23 03:47:18,784 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-23 03:47:18,784 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-23 03:47:18,785 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-23 03:47:18,785 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-11-23 03:47:18,786 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-11-23 03:47:18,786 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_find [2022-11-23 03:47:18,786 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_find [2022-11-23 03:47:18,786 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-23 03:47:18,786 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-23 03:47:18,787 INFO L130 BoogieDeclarations]: Found specification of procedure sk_atm [2022-11-23 03:47:18,787 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_atm [2022-11-23 03:47:18,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2022-11-23 03:47:18,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2022-11-23 03:47:18,788 INFO L130 BoogieDeclarations]: Found specification of procedure atm_may_send [2022-11-23 03:47:18,788 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_may_send [2022-11-23 03:47:18,788 INFO L130 BoogieDeclarations]: Found specification of procedure lec_seq_open [2022-11-23 03:47:18,788 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_seq_open [2022-11-23 03:47:18,788 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-23 03:47:18,788 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-23 03:47:18,789 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-23 03:47:18,789 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-23 03:47:18,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 03:47:18,789 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-23 03:47:18,789 INFO L130 BoogieDeclarations]: Found specification of procedure lec_tx_timeout [2022-11-23 03:47:18,790 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_tx_timeout [2022-11-23 03:47:18,791 INFO L130 BoogieDeclarations]: Found specification of procedure hlist_empty [2022-11-23 03:47:18,791 INFO L138 BoogieDeclarations]: Found implementation of procedure hlist_empty [2022-11-23 03:47:18,792 INFO L130 BoogieDeclarations]: Found specification of procedure lec_flush_complete [2022-11-23 03:47:18,792 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_flush_complete [2022-11-23 03:47:18,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 03:47:18,792 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-23 03:47:18,793 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-23 03:47:18,793 INFO L130 BoogieDeclarations]: Found specification of procedure lec_send [2022-11-23 03:47:18,793 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_send [2022-11-23 03:47:18,793 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2022-11-23 03:47:18,794 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-23 03:47:18,794 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-23 03:47:18,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 03:47:18,794 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add [2022-11-23 03:47:18,794 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add [2022-11-23 03:47:18,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-23 03:47:18,795 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-11-23 03:47:18,796 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-11-23 03:47:18,796 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-23 03:47:18,796 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-23 03:47:18,796 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-23 03:47:18,796 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-23 03:47:18,796 INFO L130 BoogieDeclarations]: Found specification of procedure lec_tbl_walk [2022-11-23 03:47:18,797 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_tbl_walk [2022-11-23 03:47:18,797 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-23 03:47:18,798 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-23 03:47:18,798 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-23 03:47:18,798 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-23 03:47:18,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-23 03:47:18,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-23 03:47:18,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-23 03:47:18,799 INFO L130 BoogieDeclarations]: Found specification of procedure atm_force_charge [2022-11-23 03:47:18,799 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_force_charge [2022-11-23 03:47:18,800 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-23 03:47:18,800 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-23 03:47:18,800 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_check_expire [2022-11-23 03:47:18,800 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_check_expire [2022-11-23 03:47:18,800 INFO L130 BoogieDeclarations]: Found specification of procedure atm_return [2022-11-23 03:47:18,800 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_return [2022-11-23 03:47:18,801 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-23 03:47:18,801 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-23 03:47:18,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-23 03:47:18,802 INFO L130 BoogieDeclarations]: Found specification of procedure dev_put [2022-11-23 03:47:18,802 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_put [2022-11-23 03:47:18,802 INFO L130 BoogieDeclarations]: Found specification of procedure lec_get_idx [2022-11-23 03:47:18,802 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_get_idx [2022-11-23 03:47:18,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 03:47:18,803 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_add [2022-11-23 03:47:18,803 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_add [2022-11-23 03:47:18,803 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-23 03:47:18,804 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-23 03:47:18,804 INFO L130 BoogieDeclarations]: Found specification of procedure hlist_add_head [2022-11-23 03:47:18,804 INFO L138 BoogieDeclarations]: Found implementation of procedure hlist_add_head [2022-11-23 03:47:18,804 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-11-23 03:47:18,804 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-11-23 03:47:18,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-23 03:47:18,805 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-23 03:47:18,805 INFO L130 BoogieDeclarations]: Found specification of procedure lec_change_mtu [2022-11-23 03:47:18,805 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_change_mtu [2022-11-23 03:47:18,806 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_copy [2022-11-23 03:47:18,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_copy [2022-11-23 03:47:18,809 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-23 03:47:18,810 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-23 03:47:18,810 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-23 03:47:18,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-23 03:47:18,812 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_1 [2022-11-23 03:47:18,812 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_1 [2022-11-23 03:47:18,813 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-23 03:47:18,813 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-23 03:47:18,813 INFO L130 BoogieDeclarations]: Found specification of procedure lec_seq_show [2022-11-23 03:47:18,819 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_seq_show [2022-11-23 03:47:18,820 INFO L130 BoogieDeclarations]: Found specification of procedure vcc_release_async [2022-11-23 03:47:18,820 INFO L138 BoogieDeclarations]: Found implementation of procedure vcc_release_async [2022-11-23 03:47:18,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 03:47:18,820 INFO L130 BoogieDeclarations]: Found specification of procedure hlist_del [2022-11-23 03:47:18,821 INFO L138 BoogieDeclarations]: Found implementation of procedure hlist_del [2022-11-23 03:47:18,821 INFO L130 BoogieDeclarations]: Found specification of procedure seq_release_private [2022-11-23 03:47:18,821 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_release_private [2022-11-23 03:47:18,821 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-23 03:47:18,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-23 03:47:18,821 INFO L130 BoogieDeclarations]: Found specification of procedure lec_set_multicast_list [2022-11-23 03:47:18,822 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_set_multicast_list [2022-11-23 03:47:18,822 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_put [2022-11-23 03:47:18,822 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_put [2022-11-23 03:47:18,822 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_hold [2022-11-23 03:47:18,822 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_hold [2022-11-23 03:47:18,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 03:47:18,822 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2022-11-23 03:47:18,823 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2022-11-23 03:47:18,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 03:47:18,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 03:47:18,823 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-23 03:47:18,823 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_equal [2022-11-23 03:47:18,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_equal [2022-11-23 03:47:18,823 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-23 03:47:18,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-23 03:47:18,824 INFO L130 BoogieDeclarations]: Found specification of procedure lec_atm_send [2022-11-23 03:47:18,824 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_atm_send [2022-11-23 03:47:18,824 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2022-11-23 03:47:18,824 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2022-11-23 03:47:18,824 INFO L130 BoogieDeclarations]: Found specification of procedure kmemdup [2022-11-23 03:47:18,824 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemdup [2022-11-23 03:47:18,825 INFO L130 BoogieDeclarations]: Found specification of procedure lec_atm_close [2022-11-23 03:47:18,825 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_atm_close [2022-11-23 03:47:18,825 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-23 03:47:18,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-23 03:47:18,825 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2022-11-23 03:47:18,825 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2022-11-23 03:47:18,825 INFO L130 BoogieDeclarations]: Found specification of procedure make_entry [2022-11-23 03:47:18,826 INFO L138 BoogieDeclarations]: Found implementation of procedure make_entry [2022-11-23 03:47:18,826 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-23 03:47:18,826 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-23 03:47:18,826 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_remove [2022-11-23 03:47:18,826 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_remove [2022-11-23 03:47:18,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 03:47:18,827 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_update [2022-11-23 03:47:18,827 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_update [2022-11-23 03:47:18,827 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_clear_vccs [2022-11-23 03:47:18,827 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_clear_vccs [2022-11-23 03:47:18,827 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_to_linear_data [2022-11-23 03:47:18,828 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_to_linear_data [2022-11-23 03:47:18,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 03:47:18,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 03:47:19,801 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 03:47:19,808 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 03:47:20,091 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-23 03:47:28,579 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-23 03:47:31,598 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; [2022-11-23 03:47:31,598 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; [2022-11-23 03:47:38,664 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 03:47:38,695 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 03:47:38,701 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 03:47:38,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:47:38 BoogieIcfgContainer [2022-11-23 03:47:38,708 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 03:47:38,715 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 03:47:38,715 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 03:47:38,719 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 03:47:38,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:47:14" (1/3) ... [2022-11-23 03:47:38,721 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@731193bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:47:38, skipping insertion in model container [2022-11-23 03:47:38,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:47:17" (2/3) ... [2022-11-23 03:47:38,723 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@731193bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:47:38, skipping insertion in model container [2022-11-23 03:47:38,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:47:38" (3/3) ... [2022-11-23 03:47:38,725 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 [2022-11-23 03:47:38,748 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 03:47:38,749 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 03:47:38,853 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 03:47:38,860 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;@77b0e54b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 03:47:38,861 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 03:47:38,872 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) [2022-11-23 03:47:38,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-23 03:47:38,891 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:47:38,892 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] [2022-11-23 03:47:38,892 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:47:38,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:47:38,898 INFO L85 PathProgramCache]: Analyzing trace with hash 404360666, now seen corresponding path program 1 times [2022-11-23 03:47:38,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:47:38,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262168014] [2022-11-23 03:47:38,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:47:38,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:47:39,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:47:39,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-23 03:47:39,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:47:39,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-23 03:47:39,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:47:39,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-23 03:47:39,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:47:39,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-23 03:47:39,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:47:39,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-23 03:47:39,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:47:39,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-23 03:47:39,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:47:39,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-23 03:47:39,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:47:39,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-23 03:47:39,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:47:39,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-23 03:47:39,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:47:39,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-23 03:47:39,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:47:39,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-23 03:47:39,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:47:39,967 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-23 03:47:39,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:47:39,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262168014] [2022-11-23 03:47:39,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262168014] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:47:39,969 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:47:39,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 03:47:39,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487087554] [2022-11-23 03:47:39,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:47:39,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 03:47:39,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:47:40,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 03:47:40,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 03:47:40,030 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) [2022-11-23 03:47:42,712 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 [] [2022-11-23 03:47:46,045 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 03:47:56,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:47:56,749 INFO L93 Difference]: Finished difference Result 4978 states and 7463 transitions. [2022-11-23 03:47:56,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 03:47:56,752 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 [2022-11-23 03:47:56,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:47:56,799 INFO L225 Difference]: With dead ends: 4978 [2022-11-23 03:47:56,800 INFO L226 Difference]: Without dead ends: 3265 [2022-11-23 03:47:56,817 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 [2022-11-23 03:47:56,821 INFO L413 NwaCegarLoop]: 2350 mSDtfsCounter, 2761 mSDsluCounter, 2986 mSDsCounter, 0 mSdLazyCounter, 1872 mSolverCounterSat, 757 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3017 SdHoareTripleChecker+Valid, 5336 SdHoareTripleChecker+Invalid, 2630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 757 IncrementalHoareTripleChecker+Valid, 1872 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:47:56,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3017 Valid, 5336 Invalid, 2630 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [757 Valid, 1872 Invalid, 1 Unknown, 0 Unchecked, 16.1s Time] [2022-11-23 03:47:56,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3265 states. [2022-11-23 03:47:57,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3265 to 3154. [2022-11-23 03:47:57,123 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) [2022-11-23 03:47:57,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3154 states to 3154 states and 4572 transitions. [2022-11-23 03:47:57,248 INFO L78 Accepts]: Start accepts. Automaton has 3154 states and 4572 transitions. Word has length 86 [2022-11-23 03:47:57,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:47:57,251 INFO L495 AbstractCegarLoop]: Abstraction has 3154 states and 4572 transitions. [2022-11-23 03:47:57,254 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) [2022-11-23 03:47:57,254 INFO L276 IsEmpty]: Start isEmpty. Operand 3154 states and 4572 transitions. [2022-11-23 03:47:57,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-23 03:47:57,268 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:47:57,268 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] [2022-11-23 03:47:57,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 03:47:57,269 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:47:57,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:47:57,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1192602966, now seen corresponding path program 1 times [2022-11-23 03:47:57,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:47:57,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011939624] [2022-11-23 03:47:57,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:47:57,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:47:57,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:47:58,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-23 03:47:58,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:47:58,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-23 03:47:58,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:47:58,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-23 03:47:58,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:47:58,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-23 03:47:58,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:47:58,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-23 03:47:58,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:47:58,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-23 03:47:58,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:47:58,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-23 03:47:58,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:47:58,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-23 03:47:58,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:47:58,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-23 03:47:58,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:47:58,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-23 03:47:58,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:47:58,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-23 03:47:58,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:47:58,508 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-23 03:47:58,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:47:58,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011939624] [2022-11-23 03:47:58,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011939624] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:47:58,509 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:47:58,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 03:47:58,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437159245] [2022-11-23 03:47:58,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:47:58,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 03:47:58,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:47:58,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 03:47:58,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-23 03:47:58,512 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) [2022-11-23 03:48:01,251 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 [] [2022-11-23 03:48:07,983 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 [] [2022-11-23 03:48:30,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:48:30,804 INFO L93 Difference]: Finished difference Result 16030 states and 24329 transitions. [2022-11-23 03:48:30,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 03:48:30,805 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 [2022-11-23 03:48:30,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:48:30,898 INFO L225 Difference]: With dead ends: 16030 [2022-11-23 03:48:30,898 INFO L226 Difference]: Without dead ends: 12900 [2022-11-23 03:48:30,925 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 [2022-11-23 03:48:30,927 INFO L413 NwaCegarLoop]: 3208 mSDtfsCounter, 10399 mSDsluCounter, 5936 mSDsCounter, 0 mSdLazyCounter, 4686 mSolverCounterSat, 3024 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11091 SdHoareTripleChecker+Valid, 9144 SdHoareTripleChecker+Invalid, 7712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3024 IncrementalHoareTripleChecker+Valid, 4686 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.2s IncrementalHoareTripleChecker+Time [2022-11-23 03:48:30,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11091 Valid, 9144 Invalid, 7712 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3024 Valid, 4686 Invalid, 2 Unknown, 0 Unchecked, 31.2s Time] [2022-11-23 03:48:30,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12900 states. [2022-11-23 03:48:31,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12900 to 12494. [2022-11-23 03:48:31,582 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) [2022-11-23 03:48:31,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12494 states to 12494 states and 18540 transitions. [2022-11-23 03:48:31,656 INFO L78 Accepts]: Start accepts. Automaton has 12494 states and 18540 transitions. Word has length 98 [2022-11-23 03:48:31,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:48:31,659 INFO L495 AbstractCegarLoop]: Abstraction has 12494 states and 18540 transitions. [2022-11-23 03:48:31,660 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) [2022-11-23 03:48:31,661 INFO L276 IsEmpty]: Start isEmpty. Operand 12494 states and 18540 transitions. [2022-11-23 03:48:31,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-23 03:48:31,667 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:48:31,667 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] [2022-11-23 03:48:31,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 03:48:31,668 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:48:31,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:48:31,668 INFO L85 PathProgramCache]: Analyzing trace with hash 988486694, now seen corresponding path program 1 times [2022-11-23 03:48:31,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:48:31,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658874443] [2022-11-23 03:48:31,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:48:31,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:48:31,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:48:32,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-23 03:48:32,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:48:32,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-23 03:48:32,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:48:32,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-23 03:48:32,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:48:32,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-23 03:48:32,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:48:32,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-23 03:48:32,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:48:32,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-23 03:48:32,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:48:32,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-23 03:48:32,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:48:32,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-23 03:48:32,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:48:32,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-23 03:48:32,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:48:32,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-23 03:48:32,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:48:32,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-23 03:48:32,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:48:32,555 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-23 03:48:32,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:48:32,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658874443] [2022-11-23 03:48:32,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658874443] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:48:32,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:48:32,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 03:48:32,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234473411] [2022-11-23 03:48:32,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:48:32,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 03:48:32,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:48:32,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 03:48:32,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-23 03:48:32,562 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) [2022-11-23 03:48:35,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 03:48:43,482 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 [] [2022-11-23 03:49:11,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:49:11,013 INFO L93 Difference]: Finished difference Result 63828 states and 101663 transitions. [2022-11-23 03:49:11,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 03:49:11,014 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 [2022-11-23 03:49:11,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:49:11,370 INFO L225 Difference]: With dead ends: 63828 [2022-11-23 03:49:11,370 INFO L226 Difference]: Without dead ends: 51358 [2022-11-23 03:49:11,503 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 [2022-11-23 03:49:11,509 INFO L413 NwaCegarLoop]: 3160 mSDtfsCounter, 7117 mSDsluCounter, 10375 mSDsCounter, 0 mSdLazyCounter, 6877 mSolverCounterSat, 1047 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7811 SdHoareTripleChecker+Valid, 13535 SdHoareTripleChecker+Invalid, 7926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1047 IncrementalHoareTripleChecker+Valid, 6877 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.3s IncrementalHoareTripleChecker+Time [2022-11-23 03:49:11,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7811 Valid, 13535 Invalid, 7926 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1047 Valid, 6877 Invalid, 2 Unknown, 0 Unchecked, 36.3s Time] [2022-11-23 03:49:11,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51358 states. [2022-11-23 03:49:14,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51358 to 49826. [2022-11-23 03:49:15,024 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) [2022-11-23 03:49:15,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49826 states to 49826 states and 77074 transitions. [2022-11-23 03:49:15,743 INFO L78 Accepts]: Start accepts. Automaton has 49826 states and 77074 transitions. Word has length 97 [2022-11-23 03:49:15,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:49:15,745 INFO L495 AbstractCegarLoop]: Abstraction has 49826 states and 77074 transitions. [2022-11-23 03:49:15,745 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) [2022-11-23 03:49:15,745 INFO L276 IsEmpty]: Start isEmpty. Operand 49826 states and 77074 transitions. [2022-11-23 03:49:15,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-11-23 03:49:15,753 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:49:15,753 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] [2022-11-23 03:49:15,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 03:49:15,754 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:49:15,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:49:15,754 INFO L85 PathProgramCache]: Analyzing trace with hash 624952606, now seen corresponding path program 1 times [2022-11-23 03:49:15,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:49:15,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014326029] [2022-11-23 03:49:15,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:49:15,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:49:15,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:49:16,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-23 03:49:16,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:49:16,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-23 03:49:16,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:49:16,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-23 03:49:16,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:49:16,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-23 03:49:16,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:49:16,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-23 03:49:16,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:49:16,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-23 03:49:16,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:49:16,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-23 03:49:16,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:49:16,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-23 03:49:16,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:49:16,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-23 03:49:16,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:49:16,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-23 03:49:16,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:49:16,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-23 03:49:16,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:49:16,758 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-23 03:49:16,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:49:16,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014326029] [2022-11-23 03:49:16,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014326029] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:49:16,760 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:49:16,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 03:49:16,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429175141] [2022-11-23 03:49:16,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:49:16,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 03:49:16,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:49:16,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 03:49:16,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-23 03:49:16,764 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) [2022-11-23 03:49:19,585 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 [] [2022-11-23 03:49:26,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 03:49:29,246 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 03:50:02,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:50:02,174 INFO L93 Difference]: Finished difference Result 254644 states and 447223 transitions. [2022-11-23 03:50:02,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 03:50:02,175 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 [2022-11-23 03:50:02,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:50:05,057 INFO L225 Difference]: With dead ends: 254644 [2022-11-23 03:50:05,057 INFO L226 Difference]: Without dead ends: 204842 [2022-11-23 03:50:05,994 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 [2022-11-23 03:50:05,995 INFO L413 NwaCegarLoop]: 3215 mSDtfsCounter, 10391 mSDsluCounter, 5951 mSDsCounter, 0 mSdLazyCounter, 4656 mSolverCounterSat, 3059 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11085 SdHoareTripleChecker+Valid, 9166 SdHoareTripleChecker+Invalid, 7718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3059 IncrementalHoareTripleChecker+Valid, 4656 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:50:05,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11085 Valid, 9166 Invalid, 7718 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3059 Valid, 4656 Invalid, 3 Unknown, 0 Unchecked, 35.0s Time] [2022-11-23 03:50:06,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204842 states. [2022-11-23 03:50:20,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204842 to 198750. [2022-11-23 03:50:20,471 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) [2022-11-23 03:50:23,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198750 states to 198750 states and 334720 transitions. [2022-11-23 03:50:23,130 INFO L78 Accepts]: Start accepts. Automaton has 198750 states and 334720 transitions. Word has length 96 [2022-11-23 03:50:23,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:50:23,130 INFO L495 AbstractCegarLoop]: Abstraction has 198750 states and 334720 transitions. [2022-11-23 03:50:23,131 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) [2022-11-23 03:50:23,131 INFO L276 IsEmpty]: Start isEmpty. Operand 198750 states and 334720 transitions. [2022-11-23 03:50:23,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-23 03:50:23,135 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:50:23,135 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] [2022-11-23 03:50:23,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 03:50:23,136 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:50:23,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:50:23,137 INFO L85 PathProgramCache]: Analyzing trace with hash 749734238, now seen corresponding path program 1 times [2022-11-23 03:50:23,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:50:23,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441293355] [2022-11-23 03:50:23,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:50:23,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:50:23,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:50:23,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-23 03:50:23,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:50:23,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-23 03:50:23,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:50:23,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-23 03:50:23,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:50:23,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-23 03:50:23,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:50:23,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-23 03:50:23,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:50:23,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-23 03:50:23,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:50:23,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-23 03:50:23,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:50:23,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-23 03:50:23,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:50:23,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-23 03:50:23,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:50:23,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-23 03:50:23,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:50:23,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-23 03:50:23,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:50:23,974 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-23 03:50:23,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:50:23,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441293355] [2022-11-23 03:50:23,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441293355] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:50:23,975 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:50:23,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 03:50:23,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124794457] [2022-11-23 03:50:23,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:50:23,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 03:50:23,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:50:23,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 03:50:23,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-23 03:50:23,978 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) [2022-11-23 03:50:26,786 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 03:50:30,607 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 03:50:41,894 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 03:50:44,416 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []