./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-drivers--net--xen-netfront.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro --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 a900a56caf1252bf2b77371f0836914c913e44b231203ecd4eebd687a96fd0c2 --- 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-8393723 [2022-11-18 18:33:10,188 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 18:33:10,194 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 18:33:10,218 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 18:33:10,223 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 18:33:10,226 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 18:33:10,230 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 18:33:10,235 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 18:33:10,238 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 18:33:10,243 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 18:33:10,245 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 18:33:10,249 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 18:33:10,250 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 18:33:10,252 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 18:33:10,254 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 18:33:10,257 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 18:33:10,258 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 18:33:10,259 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 18:33:10,261 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 18:33:10,268 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 18:33:10,270 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 18:33:10,271 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 18:33:10,274 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 18:33:10,275 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 18:33:10,284 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 18:33:10,284 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 18:33:10,284 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 18:33:10,286 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 18:33:10,287 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 18:33:10,288 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 18:33:10,289 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 18:33:10,290 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 18:33:10,292 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 18:33:10,295 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 18:33:10,296 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 18:33:10,296 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 18:33:10,297 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 18:33:10,297 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 18:33:10,297 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 18:33:10,298 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 18:33:10,299 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 18:33:10,300 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-18 18:33:10,339 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 18:33:10,340 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 18:33:10,340 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 18:33:10,341 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 18:33:10,341 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 18:33:10,342 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 18:33:10,343 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 18:33:10,343 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 18:33:10,343 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 18:33:10,343 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 18:33:10,344 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 18:33:10,345 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 18:33:10,345 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 18:33:10,345 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 18:33:10,346 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 18:33:10,346 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 18:33:10,346 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 18:33:10,346 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 18:33:10,346 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 18:33:10,347 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 18:33:10,347 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 18:33:10,347 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:33:10,347 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 18:33:10,348 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 18:33:10,348 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 18:33:10,348 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 18:33:10,350 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 18:33:10,350 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 18:33:10,350 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 18:33:10,350 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 18:33:10,351 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a900a56caf1252bf2b77371f0836914c913e44b231203ecd4eebd687a96fd0c2 [2022-11-18 18:33:10,654 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 18:33:10,677 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 18:33:10,680 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 18:33:10,681 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 18:33:10,682 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 18:33:10,684 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i [2022-11-18 18:33:10,750 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/data/a72da9233/7bef31c6eb8649f1807aa1edb0fe4405/FLAG97ecd740f [2022-11-18 18:33:11,645 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 18:33:11,646 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i [2022-11-18 18:33:11,690 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/data/a72da9233/7bef31c6eb8649f1807aa1edb0fe4405/FLAG97ecd740f [2022-11-18 18:33:12,062 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/data/a72da9233/7bef31c6eb8649f1807aa1edb0fe4405 [2022-11-18 18:33:12,069 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 18:33:12,072 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 18:33:12,077 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 18:33:12,077 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 18:33:12,081 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 18:33:12,081 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:33:12" (1/1) ... [2022-11-18 18:33:12,083 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79688bc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:33:12, skipping insertion in model container [2022-11-18 18:33:12,083 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:33:12" (1/1) ... [2022-11-18 18:33:12,090 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 18:33:12,238 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:33:12,877 WARN L1258 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5986] [2022-11-18 18:33:12,878 WARN L1258 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5987-5988] [2022-11-18 18:33:13,476 WARN L234 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_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i[188410,188423] [2022-11-18 18:33:14,861 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:33:14,940 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 18:33:15,074 WARN L1258 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5986] [2022-11-18 18:33:15,074 WARN L1258 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5987-5988] [2022-11-18 18:33:15,094 WARN L234 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_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i[188410,188423] [2022-11-18 18:33:15,421 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:33:15,604 INFO L208 MainTranslator]: Completed translation [2022-11-18 18:33:15,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:33:15 WrapperNode [2022-11-18 18:33:15,605 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 18:33:15,606 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 18:33:15,606 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 18:33:15,607 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 18:33:15,614 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:33:15" (1/1) ... [2022-11-18 18:33:15,726 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:33:15" (1/1) ... [2022-11-18 18:33:15,932 INFO L138 Inliner]: procedures = 350, calls = 2000, calls flagged for inlining = 171, calls inlined = 139, statements flattened = 4678 [2022-11-18 18:33:15,933 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 18:33:15,934 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 18:33:15,934 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 18:33:15,934 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 18:33:15,944 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:33:15" (1/1) ... [2022-11-18 18:33:15,945 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:33:15" (1/1) ... [2022-11-18 18:33:15,989 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:33:15" (1/1) ... [2022-11-18 18:33:16,000 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:33:15" (1/1) ... [2022-11-18 18:33:16,137 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:33:15" (1/1) ... [2022-11-18 18:33:16,164 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:33:15" (1/1) ... [2022-11-18 18:33:16,199 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:33:15" (1/1) ... [2022-11-18 18:33:16,222 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:33:15" (1/1) ... [2022-11-18 18:33:16,255 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 18:33:16,257 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 18:33:16,258 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 18:33:16,258 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 18:33:16,259 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:33:15" (1/1) ... [2022-11-18 18:33:16,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:33:16,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:33:16,296 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 18:33:16,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 18:33:16,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-18 18:33:16,423 INFO L130 BoogieDeclarations]: Found specification of procedure get_page [2022-11-18 18:33:16,424 INFO L138 BoogieDeclarations]: Found implementation of procedure get_page [2022-11-18 18:33:16,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-18 18:33:16,424 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_release_tx_bufs [2022-11-18 18:33:16,424 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_release_tx_bufs [2022-11-18 18:33:16,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-18 18:33:16,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-18 18:33:16,425 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2022-11-18 18:33:16,425 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2022-11-18 18:33:16,425 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2022-11-18 18:33:16,425 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2022-11-18 18:33:16,425 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_change_mtu [2022-11-18 18:33:16,425 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_change_mtu [2022-11-18 18:33:16,426 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-11-18 18:33:16,426 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-11-18 18:33:16,426 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_write [2022-11-18 18:33:16,426 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_write [2022-11-18 18:33:16,426 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-18 18:33:16,426 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-18 18:33:16,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-18 18:33:16,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-18 18:33:16,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-18 18:33:16,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-18 18:33:16,427 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2022-11-18 18:33:16,427 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2022-11-18 18:33:16,427 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_update_begin [2022-11-18 18:33:16,428 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_update_begin [2022-11-18 18:33:16,428 INFO L130 BoogieDeclarations]: Found specification of procedure bind_evtchn_to_irqhandler [2022-11-18 18:33:16,428 INFO L138 BoogieDeclarations]: Found implementation of procedure bind_evtchn_to_irqhandler [2022-11-18 18:33:16,428 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_transaction_end [2022-11-18 18:33:16,428 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_transaction_end [2022-11-18 18:33:16,428 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_remove [2022-11-18 18:33:16,429 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_remove [2022-11-18 18:33:16,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-18 18:33:16,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-18 18:33:16,429 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-18 18:33:16,429 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-18 18:33:16,429 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-18 18:33:16,430 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-18 18:33:16,430 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_grant_ring [2022-11-18 18:33:16,430 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_grant_ring [2022-11-18 18:33:16,431 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-18 18:33:16,431 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-18 18:33:16,431 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-18 18:33:16,431 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-18 18:33:16,431 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_claim_grant_reference [2022-11-18 18:33:16,431 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_claim_grant_reference [2022-11-18 18:33:16,431 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-18 18:33:16,432 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-18 18:33:16,432 INFO L130 BoogieDeclarations]: Found specification of procedure netif_set_real_num_tx_queues [2022-11-18 18:33:16,432 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_set_real_num_tx_queues [2022-11-18 18:33:16,433 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_end_foreign_access [2022-11-18 18:33:16,434 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_end_foreign_access [2022-11-18 18:33:16,434 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_disconnect_backend [2022-11-18 18:33:16,435 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_disconnect_backend [2022-11-18 18:33:16,435 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_get_stats64 [2022-11-18 18:33:16,435 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_get_stats64 [2022-11-18 18:33:16,435 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-18 18:33:16,435 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-18 18:33:16,436 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_alloc_evtchn [2022-11-18 18:33:16,436 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_alloc_evtchn [2022-11-18 18:33:16,436 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-11-18 18:33:16,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-11-18 18:33:16,436 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_alloc_grant_references [2022-11-18 18:33:16,436 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_alloc_grant_references [2022-11-18 18:33:16,437 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 18:33:16,437 INFO L130 BoogieDeclarations]: Found specification of procedure netfront_tx_slot_available [2022-11-18 18:33:16,437 INFO L138 BoogieDeclarations]: Found implementation of procedure netfront_tx_slot_available [2022-11-18 18:33:16,437 INFO L130 BoogieDeclarations]: Found specification of procedure notify_remote_via_irq [2022-11-18 18:33:16,437 INFO L138 BoogieDeclarations]: Found implementation of procedure notify_remote_via_irq [2022-11-18 18:33:16,437 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_release_grant_reference [2022-11-18 18:33:16,438 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_release_grant_reference [2022-11-18 18:33:16,438 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-11-18 18:33:16,438 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-11-18 18:33:16,439 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_can_sg [2022-11-18 18:33:16,439 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_can_sg [2022-11-18 18:33:16,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-18 18:33:16,439 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-18 18:33:16,439 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-18 18:33:16,439 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-18 18:33:16,440 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-18 18:33:16,440 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-11-18 18:33:16,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-11-18 18:33:16,440 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2022-11-18 18:33:16,440 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_tail [2022-11-18 18:33:16,441 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_tail [2022-11-18 18:33:16,441 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_rxidx [2022-11-18 18:33:16,441 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_rxidx [2022-11-18 18:33:16,441 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-18 18:33:16,442 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-18 18:33:16,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 18:33:16,443 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2022-11-18 18:33:16,443 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2022-11-18 18:33:16,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-18 18:33:16,443 INFO L130 BoogieDeclarations]: Found specification of procedure write_queue_xenstore_keys [2022-11-18 18:33:16,443 INFO L138 BoogieDeclarations]: Found implementation of procedure write_queue_xenstore_keys [2022-11-18 18:33:16,443 INFO L130 BoogieDeclarations]: Found specification of procedure pfn_to_mfn [2022-11-18 18:33:16,444 INFO L138 BoogieDeclarations]: Found implementation of procedure pfn_to_mfn [2022-11-18 18:33:16,444 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-11-18 18:33:16,444 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-11-18 18:33:16,444 INFO L130 BoogieDeclarations]: Found specification of procedure add_id_to_freelist [2022-11-18 18:33:16,444 INFO L138 BoogieDeclarations]: Found implementation of procedure add_id_to_freelist [2022-11-18 18:33:16,444 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_alloc_rx_buffers [2022-11-18 18:33:16,444 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_alloc_rx_buffers [2022-11-18 18:33:16,445 INFO L130 BoogieDeclarations]: Found specification of procedure skb_entry_set_link [2022-11-18 18:33:16,445 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_entry_set_link [2022-11-18 18:33:16,446 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-18 18:33:16,446 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-18 18:33:16,446 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-18 18:33:16,446 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-18 18:33:16,446 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-11-18 18:33:16,446 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-11-18 18:33:16,447 INFO L130 BoogieDeclarations]: Found specification of procedure free_pages [2022-11-18 18:33:16,448 INFO L138 BoogieDeclarations]: Found implementation of procedure free_pages [2022-11-18 18:33:16,451 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_end_foreign_access_ref [2022-11-18 18:33:16,451 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_end_foreign_access_ref [2022-11-18 18:33:16,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-18 18:33:16,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-18 18:33:16,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-18 18:33:16,454 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-11-18 18:33:16,455 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-11-18 18:33:16,455 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_free_grant_references [2022-11-18 18:33:16,456 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_free_grant_references [2022-11-18 18:33:16,461 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2022-11-18 18:33:16,461 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2022-11-18 18:33:16,461 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-11-18 18:33:16,461 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-11-18 18:33:16,462 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-18 18:33:16,462 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-18 18:33:16,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-18 18:33:16,462 INFO L130 BoogieDeclarations]: Found specification of procedure unbind_from_irqhandler [2022-11-18 18:33:16,462 INFO L138 BoogieDeclarations]: Found implementation of procedure unbind_from_irqhandler [2022-11-18 18:33:16,462 INFO L130 BoogieDeclarations]: Found specification of procedure get_zeroed_page [2022-11-18 18:33:16,462 INFO L138 BoogieDeclarations]: Found implementation of procedure get_zeroed_page [2022-11-18 18:33:16,463 INFO L130 BoogieDeclarations]: Found specification of procedure netback_changed [2022-11-18 18:33:16,463 INFO L138 BoogieDeclarations]: Found implementation of procedure netback_changed [2022-11-18 18:33:16,463 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_poll_controller [2022-11-18 18:33:16,463 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_poll_controller [2022-11-18 18:33:16,463 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_insert [2022-11-18 18:33:16,463 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_insert [2022-11-18 18:33:16,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 18:33:16,464 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-18 18:33:16,464 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-18 18:33:16,464 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-18 18:33:16,464 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-18 18:33:16,464 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2022-11-18 18:33:16,464 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2022-11-18 18:33:16,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-18 18:33:16,465 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-18 18:33:16,465 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_select_queue [2022-11-18 18:33:16,465 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_select_queue [2022-11-18 18:33:16,465 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_end_access [2022-11-18 18:33:16,465 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_end_access [2022-11-18 18:33:16,465 INFO L130 BoogieDeclarations]: Found specification of procedure skb_get [2022-11-18 18:33:16,465 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_get [2022-11-18 18:33:16,465 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-18 18:33:16,466 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-18 18:33:16,466 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-18 18:33:16,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-18 18:33:16,466 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_get_rx_ref [2022-11-18 18:33:16,466 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_get_rx_ref [2022-11-18 18:33:16,466 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-18 18:33:16,466 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-18 18:33:16,467 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2022-11-18 18:33:16,467 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2022-11-18 18:33:16,467 INFO L130 BoogieDeclarations]: Found specification of procedure skb_add_rx_frag [2022-11-18 18:33:16,467 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_add_rx_frag [2022-11-18 18:33:16,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 18:33:16,467 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2022-11-18 18:33:16,467 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2022-11-18 18:33:16,468 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-11-18 18:33:16,468 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-11-18 18:33:16,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-18 18:33:16,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-18 18:33:16,468 INFO L130 BoogieDeclarations]: Found specification of procedure get_id_from_freelist [2022-11-18 18:33:16,468 INFO L138 BoogieDeclarations]: Found implementation of procedure get_id_from_freelist [2022-11-18 18:33:16,468 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2022-11-18 18:33:16,469 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2022-11-18 18:33:16,469 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_fix_features [2022-11-18 18:33:16,469 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_fix_features [2022-11-18 18:33:16,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 18:33:16,469 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-18 18:33:16,469 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-18 18:33:16,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 18:33:16,470 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-18 18:33:16,470 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-18 18:33:16,470 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_next [2022-11-18 18:33:16,470 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_next [2022-11-18 18:33:16,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 18:33:16,470 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2022-11-18 18:33:16,470 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2022-11-18 18:33:16,471 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-11-18 18:33:16,471 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-11-18 18:33:16,471 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-11-18 18:33:16,471 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-11-18 18:33:16,471 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-11-18 18:33:16,471 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-11-18 18:33:16,471 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2022-11-18 18:33:16,472 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2022-11-18 18:33:16,472 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2022-11-18 18:33:16,472 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2022-11-18 18:33:16,472 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-18 18:33:16,472 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-18 18:33:16,472 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2022-11-18 18:33:16,472 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2022-11-18 18:33:16,472 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_grant_foreign_access_ref [2022-11-18 18:33:16,473 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_grant_foreign_access_ref [2022-11-18 18:33:16,473 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-18 18:33:16,473 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-18 18:33:16,473 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_set_features [2022-11-18 18:33:16,473 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_set_features [2022-11-18 18:33:16,473 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-11-18 18:33:16,473 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-11-18 18:33:16,474 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-18 18:33:16,474 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-18 18:33:16,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 18:33:16,474 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-11-18 18:33:16,474 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-11-18 18:33:16,474 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2022-11-18 18:33:16,474 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2022-11-18 18:33:16,475 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_free_evtchn [2022-11-18 18:33:16,475 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_free_evtchn [2022-11-18 18:33:16,475 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_get_rx_skb [2022-11-18 18:33:16,475 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_get_rx_skb [2022-11-18 18:33:16,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 18:33:16,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 18:33:16,475 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_tx_buf_gc [2022-11-18 18:33:16,476 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_tx_buf_gc [2022-11-18 18:33:16,476 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-11-18 18:33:16,476 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-11-18 18:33:16,476 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-18 18:33:16,476 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-18 18:33:17,366 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 18:33:17,369 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 18:33:18,374 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-18 18:33:22,474 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 18:33:22,494 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 18:33:22,495 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 18:33:22,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:33:22 BoogieIcfgContainer [2022-11-18 18:33:22,499 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 18:33:22,501 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 18:33:22,501 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 18:33:22,504 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 18:33:22,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:33:12" (1/3) ... [2022-11-18 18:33:22,505 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56afd7bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:33:22, skipping insertion in model container [2022-11-18 18:33:22,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:33:15" (2/3) ... [2022-11-18 18:33:22,505 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56afd7bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:33:22, skipping insertion in model container [2022-11-18 18:33:22,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:33:22" (3/3) ... [2022-11-18 18:33:22,507 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i [2022-11-18 18:33:22,525 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 18:33:22,526 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 18:33:22,627 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 18:33:22,642 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;@77ba6ce4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 18:33:22,642 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 18:33:22,653 INFO L276 IsEmpty]: Start isEmpty. Operand has 1592 states, 1116 states have (on average 1.3046594982078854) internal successors, (1456), 1146 states have internal predecessors, (1456), 367 states have call successors, (367), 108 states have call predecessors, (367), 107 states have return successors, (362), 360 states have call predecessors, (362), 362 states have call successors, (362) [2022-11-18 18:33:22,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-11-18 18:33:22,700 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:33:22,701 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:33:22,702 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:33:22,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:33:22,712 INFO L85 PathProgramCache]: Analyzing trace with hash -1905505513, now seen corresponding path program 1 times [2022-11-18 18:33:22,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:33:22,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060503669] [2022-11-18 18:33:22,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:33:22,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:33:23,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:23,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:33:23,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:23,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 18:33:23,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:23,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 18:33:23,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:23,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 18:33:23,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:23,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-18 18:33:23,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:23,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 18:33:23,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:23,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 18:33:23,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:23,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-18 18:33:23,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:23,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 18:33:23,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:23,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-18 18:33:23,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:23,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-18 18:33:23,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:23,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 18:33:23,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:23,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-18 18:33:23,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:23,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-18 18:33:23,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:23,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-18 18:33:23,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:23,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-11-18 18:33:23,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:23,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-18 18:33:23,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:24,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:33:24,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:24,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-18 18:33:24,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:24,038 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2022-11-18 18:33:24,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:33:24,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060503669] [2022-11-18 18:33:24,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060503669] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:33:24,040 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:33:24,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 18:33:24,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203801213] [2022-11-18 18:33:24,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:33:24,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:33:24,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:33:24,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:33:24,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:33:24,085 INFO L87 Difference]: Start difference. First operand has 1592 states, 1116 states have (on average 1.3046594982078854) internal successors, (1456), 1146 states have internal predecessors, (1456), 367 states have call successors, (367), 108 states have call predecessors, (367), 107 states have return successors, (362), 360 states have call predecessors, (362), 362 states have call successors, (362) Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-18 18:33:33,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:33:33,415 INFO L93 Difference]: Finished difference Result 4612 states and 6476 transitions. [2022-11-18 18:33:33,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 18:33:33,418 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 153 [2022-11-18 18:33:33,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:33:33,472 INFO L225 Difference]: With dead ends: 4612 [2022-11-18 18:33:33,473 INFO L226 Difference]: Without dead ends: 2966 [2022-11-18 18:33:33,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-11-18 18:33:33,498 INFO L413 NwaCegarLoop]: 1700 mSDtfsCounter, 3188 mSDsluCounter, 3851 mSDsCounter, 0 mSdLazyCounter, 4067 mSolverCounterSat, 1823 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3428 SdHoareTripleChecker+Valid, 5551 SdHoareTripleChecker+Invalid, 5890 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1823 IncrementalHoareTripleChecker+Valid, 4067 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2022-11-18 18:33:33,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3428 Valid, 5551 Invalid, 5890 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1823 Valid, 4067 Invalid, 0 Unknown, 0 Unchecked, 8.6s Time] [2022-11-18 18:33:33,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2966 states. [2022-11-18 18:33:33,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2966 to 2526. [2022-11-18 18:33:33,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2526 states, 1775 states have (on average 1.2952112676056338) internal successors, (2299), 1812 states have internal predecessors, (2299), 573 states have call successors, (573), 178 states have call predecessors, (573), 177 states have return successors, (572), 569 states have call predecessors, (572), 572 states have call successors, (572) [2022-11-18 18:33:33,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2526 states to 2526 states and 3444 transitions. [2022-11-18 18:33:33,798 INFO L78 Accepts]: Start accepts. Automaton has 2526 states and 3444 transitions. Word has length 153 [2022-11-18 18:33:33,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:33:33,799 INFO L495 AbstractCegarLoop]: Abstraction has 2526 states and 3444 transitions. [2022-11-18 18:33:33,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-18 18:33:33,800 INFO L276 IsEmpty]: Start isEmpty. Operand 2526 states and 3444 transitions. [2022-11-18 18:33:33,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-11-18 18:33:33,817 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:33:33,818 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:33:33,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 18:33:33,818 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:33:33,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:33:33,819 INFO L85 PathProgramCache]: Analyzing trace with hash -581928602, now seen corresponding path program 1 times [2022-11-18 18:33:33,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:33:33,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851686458] [2022-11-18 18:33:33,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:33:33,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:33:34,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:34,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:33:34,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:34,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 18:33:34,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:34,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 18:33:34,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:34,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 18:33:34,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:34,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-18 18:33:34,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:34,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 18:33:34,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:34,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 18:33:34,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:34,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-18 18:33:34,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:34,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 18:33:34,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:34,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-18 18:33:34,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:34,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-18 18:33:34,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:34,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 18:33:34,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:34,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-18 18:33:34,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:34,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-18 18:33:34,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:34,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-18 18:33:34,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:34,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-18 18:33:34,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:34,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-18 18:33:34,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:34,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:33:34,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:34,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-18 18:33:34,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:34,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:33:34,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:34,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-11-18 18:33:34,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:34,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:33:34,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:34,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-11-18 18:33:34,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:34,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-11-18 18:33:34,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:34,578 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2022-11-18 18:33:34,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:33:34,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851686458] [2022-11-18 18:33:34,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851686458] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:33:34,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:33:34,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 18:33:34,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171037676] [2022-11-18 18:33:34,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:33:34,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:33:34,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:33:34,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:33:34,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:33:34,587 INFO L87 Difference]: Start difference. First operand 2526 states and 3444 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (26), 5 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-18 18:33:45,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:33:45,039 INFO L93 Difference]: Finished difference Result 6633 states and 9083 transitions. [2022-11-18 18:33:45,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 18:33:45,040 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (26), 5 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 162 [2022-11-18 18:33:45,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:33:45,067 INFO L225 Difference]: With dead ends: 6633 [2022-11-18 18:33:45,067 INFO L226 Difference]: Without dead ends: 4147 [2022-11-18 18:33:45,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2022-11-18 18:33:45,078 INFO L413 NwaCegarLoop]: 1381 mSDtfsCounter, 3943 mSDsluCounter, 3025 mSDsCounter, 0 mSdLazyCounter, 4849 mSolverCounterSat, 2602 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4168 SdHoareTripleChecker+Valid, 4406 SdHoareTripleChecker+Invalid, 7451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2602 IncrementalHoareTripleChecker+Valid, 4849 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2022-11-18 18:33:45,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4168 Valid, 4406 Invalid, 7451 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2602 Valid, 4849 Invalid, 0 Unknown, 0 Unchecked, 9.7s Time] [2022-11-18 18:33:45,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4147 states. [2022-11-18 18:33:45,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4147 to 3616. [2022-11-18 18:33:45,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3616 states, 2556 states have (on average 1.2902973395931143) internal successors, (3298), 2611 states have internal predecessors, (3298), 788 states have call successors, (788), 273 states have call predecessors, (788), 271 states have return successors, (787), 777 states have call predecessors, (787), 787 states have call successors, (787) [2022-11-18 18:33:45,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3616 states to 3616 states and 4873 transitions. [2022-11-18 18:33:45,349 INFO L78 Accepts]: Start accepts. Automaton has 3616 states and 4873 transitions. Word has length 162 [2022-11-18 18:33:45,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:33:45,350 INFO L495 AbstractCegarLoop]: Abstraction has 3616 states and 4873 transitions. [2022-11-18 18:33:45,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (26), 5 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-18 18:33:45,350 INFO L276 IsEmpty]: Start isEmpty. Operand 3616 states and 4873 transitions. [2022-11-18 18:33:45,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-11-18 18:33:45,359 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:33:45,359 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:33:45,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 18:33:45,360 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:33:45,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:33:45,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1047050133, now seen corresponding path program 1 times [2022-11-18 18:33:45,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:33:45,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963733117] [2022-11-18 18:33:45,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:33:45,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:33:45,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:45,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:33:45,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:45,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 18:33:45,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:45,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 18:33:45,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:45,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 18:33:45,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:45,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-18 18:33:45,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:45,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 18:33:45,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:45,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 18:33:45,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:45,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-18 18:33:45,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:45,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 18:33:45,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:45,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-18 18:33:45,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:45,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-18 18:33:45,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:45,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 18:33:45,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:45,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-18 18:33:45,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:45,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-18 18:33:45,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:45,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-18 18:33:45,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:45,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-18 18:33:45,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:45,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-18 18:33:45,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:45,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-11-18 18:33:45,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:46,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-18 18:33:46,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:46,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:33:46,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:46,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-18 18:33:46,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:46,039 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 18:33:46,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:33:46,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963733117] [2022-11-18 18:33:46,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963733117] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:33:46,040 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:33:46,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 18:33:46,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671845513] [2022-11-18 18:33:46,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:33:46,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 18:33:46,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:33:46,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 18:33:46,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-18 18:33:46,043 INFO L87 Difference]: Start difference. First operand 3616 states and 4873 transitions. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-18 18:33:53,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:33:53,190 INFO L93 Difference]: Finished difference Result 7836 states and 10697 transitions. [2022-11-18 18:33:53,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 18:33:53,191 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 180 [2022-11-18 18:33:53,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:33:53,214 INFO L225 Difference]: With dead ends: 7836 [2022-11-18 18:33:53,215 INFO L226 Difference]: Without dead ends: 4264 [2022-11-18 18:33:53,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-18 18:33:53,228 INFO L413 NwaCegarLoop]: 1513 mSDtfsCounter, 1076 mSDsluCounter, 5008 mSDsCounter, 0 mSdLazyCounter, 4299 mSolverCounterSat, 941 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1142 SdHoareTripleChecker+Valid, 6521 SdHoareTripleChecker+Invalid, 5240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 941 IncrementalHoareTripleChecker+Valid, 4299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-11-18 18:33:53,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1142 Valid, 6521 Invalid, 5240 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [941 Valid, 4299 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2022-11-18 18:33:53,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4264 states. [2022-11-18 18:33:53,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4264 to 3616. [2022-11-18 18:33:53,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3616 states, 2556 states have (on average 1.2871674491392802) internal successors, (3290), 2611 states have internal predecessors, (3290), 788 states have call successors, (788), 273 states have call predecessors, (788), 271 states have return successors, (787), 777 states have call predecessors, (787), 787 states have call successors, (787) [2022-11-18 18:33:53,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3616 states to 3616 states and 4865 transitions. [2022-11-18 18:33:53,442 INFO L78 Accepts]: Start accepts. Automaton has 3616 states and 4865 transitions. Word has length 180 [2022-11-18 18:33:53,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:33:53,443 INFO L495 AbstractCegarLoop]: Abstraction has 3616 states and 4865 transitions. [2022-11-18 18:33:53,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-18 18:33:53,443 INFO L276 IsEmpty]: Start isEmpty. Operand 3616 states and 4865 transitions. [2022-11-18 18:33:53,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-18 18:33:53,448 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:33:53,448 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:33:53,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 18:33:53,449 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:33:53,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:33:53,449 INFO L85 PathProgramCache]: Analyzing trace with hash -158163191, now seen corresponding path program 1 times [2022-11-18 18:33:53,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:33:53,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699401697] [2022-11-18 18:33:53,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:33:53,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:33:53,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:54,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:33:54,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:54,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 18:33:54,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:54,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 18:33:54,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:54,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 18:33:54,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:54,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-18 18:33:54,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:54,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 18:33:54,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:54,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 18:33:54,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:54,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-18 18:33:54,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:54,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 18:33:54,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:54,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-18 18:33:54,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:54,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-18 18:33:54,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:54,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 18:33:54,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:54,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-18 18:33:54,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:54,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-18 18:33:54,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:54,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-18 18:33:54,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:54,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-18 18:33:54,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:54,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-11-18 18:33:54,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:54,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-18 18:33:54,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:54,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-11-18 18:33:54,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:54,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:33:54,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:54,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-11-18 18:33:54,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:54,292 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2022-11-18 18:33:54,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:33:54,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699401697] [2022-11-18 18:33:54,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699401697] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:33:54,293 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:33:54,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 18:33:54,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574105430] [2022-11-18 18:33:54,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:33:54,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:33:54,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:33:54,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:33:54,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:33:54,295 INFO L87 Difference]: Start difference. First operand 3616 states and 4865 transitions. Second operand has 6 states, 6 states have (on average 16.5) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-18 18:34:03,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:34:03,799 INFO L93 Difference]: Finished difference Result 7337 states and 10110 transitions. [2022-11-18 18:34:03,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 18:34:03,800 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 185 [2022-11-18 18:34:03,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:34:03,838 INFO L225 Difference]: With dead ends: 7337 [2022-11-18 18:34:03,838 INFO L226 Difference]: Without dead ends: 7334 [2022-11-18 18:34:03,841 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-11-18 18:34:03,842 INFO L413 NwaCegarLoop]: 1758 mSDtfsCounter, 3266 mSDsluCounter, 3919 mSDsCounter, 0 mSdLazyCounter, 4285 mSolverCounterSat, 1836 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3500 SdHoareTripleChecker+Valid, 5677 SdHoareTripleChecker+Invalid, 6121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1836 IncrementalHoareTripleChecker+Valid, 4285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2022-11-18 18:34:03,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3500 Valid, 5677 Invalid, 6121 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1836 Valid, 4285 Invalid, 0 Unknown, 0 Unchecked, 8.9s Time] [2022-11-18 18:34:03,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7334 states. [2022-11-18 18:34:04,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7334 to 6245. [2022-11-18 18:34:04,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6245 states, 4479 states have (on average 1.2996204509935254) internal successors, (5821), 4581 states have internal predecessors, (5821), 1284 states have call successors, (1284), 480 states have call predecessors, (1284), 481 states have return successors, (1323), 1259 states have call predecessors, (1323), 1283 states have call successors, (1323) [2022-11-18 18:34:04,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6245 states to 6245 states and 8428 transitions. [2022-11-18 18:34:04,245 INFO L78 Accepts]: Start accepts. Automaton has 6245 states and 8428 transitions. Word has length 185 [2022-11-18 18:34:04,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:34:04,247 INFO L495 AbstractCegarLoop]: Abstraction has 6245 states and 8428 transitions. [2022-11-18 18:34:04,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-18 18:34:04,248 INFO L276 IsEmpty]: Start isEmpty. Operand 6245 states and 8428 transitions. [2022-11-18 18:34:04,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2022-11-18 18:34:04,260 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:34:04,261 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:34:04,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 18:34:04,261 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:34:04,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:34:04,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1265613920, now seen corresponding path program 1 times [2022-11-18 18:34:04,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:34:04,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387259801] [2022-11-18 18:34:04,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:34:04,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:34:04,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:04,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:34:04,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:04,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 18:34:05,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:05,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 18:34:05,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:05,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 18:34:05,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:05,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-18 18:34:05,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:05,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 18:34:05,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:05,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 18:34:05,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:05,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-18 18:34:05,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:05,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 18:34:05,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:05,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-18 18:34:05,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:05,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-18 18:34:05,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:05,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 18:34:05,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:05,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-18 18:34:05,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:05,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-18 18:34:05,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:05,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-18 18:34:05,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:05,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-18 18:34:05,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:05,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-18 18:34:05,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:05,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:34:05,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:05,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-18 18:34:05,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:05,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-18 18:34:05,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:05,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-11-18 18:34:05,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:05,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-11-18 18:34:05,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:05,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-11-18 18:34:05,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:05,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-11-18 18:34:05,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:05,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-11-18 18:34:05,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:05,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-11-18 18:34:05,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:05,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:34:05,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:05,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-11-18 18:34:05,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:05,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:34:05,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:05,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-11-18 18:34:05,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:05,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:34:05,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:05,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-11-18 18:34:05,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:05,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-11-18 18:34:05,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:05,311 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 305 trivial. 0 not checked. [2022-11-18 18:34:05,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:34:05,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387259801] [2022-11-18 18:34:05,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387259801] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:34:05,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [26004028] [2022-11-18 18:34:05,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:34:05,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:34:05,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:34:05,319 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:34:05,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 18:34:06,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:06,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 2911 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 18:34:06,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:34:06,581 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2022-11-18 18:34:06,582 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:34:06,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [26004028] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:34:06,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 18:34:06,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2022-11-18 18:34:06,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443327797] [2022-11-18 18:34:06,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:34:06,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:34:06,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:34:06,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:34:06,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-18 18:34:06,585 INFO L87 Difference]: Start difference. First operand 6245 states and 8428 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-11-18 18:34:07,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:34:07,240 INFO L93 Difference]: Finished difference Result 15117 states and 20424 transitions. [2022-11-18 18:34:07,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:34:07,241 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 254 [2022-11-18 18:34:07,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:34:07,284 INFO L225 Difference]: With dead ends: 15117 [2022-11-18 18:34:07,284 INFO L226 Difference]: Without dead ends: 8924 [2022-11-18 18:34:07,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 318 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-18 18:34:07,309 INFO L413 NwaCegarLoop]: 2427 mSDtfsCounter, 1563 mSDsluCounter, 1929 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1563 SdHoareTripleChecker+Valid, 4356 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 18:34:07,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1563 Valid, 4356 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 18:34:07,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8924 states. [2022-11-18 18:34:07,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8924 to 8879. [2022-11-18 18:34:07,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8879 states, 6458 states have (on average 1.3059770826881387) internal successors, (8434), 6600 states have internal predecessors, (8434), 1724 states have call successors, (1724), 694 states have call predecessors, (1724), 696 states have return successors, (1777), 1686 states have call predecessors, (1777), 1723 states have call successors, (1777) [2022-11-18 18:34:07,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8879 states to 8879 states and 11935 transitions. [2022-11-18 18:34:07,847 INFO L78 Accepts]: Start accepts. Automaton has 8879 states and 11935 transitions. Word has length 254 [2022-11-18 18:34:07,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:34:07,848 INFO L495 AbstractCegarLoop]: Abstraction has 8879 states and 11935 transitions. [2022-11-18 18:34:07,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-11-18 18:34:07,849 INFO L276 IsEmpty]: Start isEmpty. Operand 8879 states and 11935 transitions. [2022-11-18 18:34:07,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2022-11-18 18:34:07,866 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:34:07,932 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:34:07,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 18:34:08,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:34:08,134 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:34:08,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:34:08,135 INFO L85 PathProgramCache]: Analyzing trace with hash 400465289, now seen corresponding path program 1 times [2022-11-18 18:34:08,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:34:08,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765698389] [2022-11-18 18:34:08,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:34:08,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:34:08,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:08,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:34:08,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:08,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 18:34:08,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:08,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 18:34:08,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:08,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 18:34:08,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:08,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-18 18:34:08,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:08,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 18:34:08,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:08,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 18:34:08,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:08,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-18 18:34:08,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:08,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 18:34:08,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:08,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-18 18:34:08,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:08,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-18 18:34:08,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:08,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 18:34:08,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:08,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-18 18:34:08,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:08,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-18 18:34:08,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:08,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-18 18:34:08,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:08,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-18 18:34:08,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:08,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-18 18:34:08,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:08,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:34:08,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:08,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-18 18:34:08,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:08,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-18 18:34:08,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:08,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-11-18 18:34:08,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:08,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-11-18 18:34:08,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:08,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-11-18 18:34:08,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:08,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2022-11-18 18:34:08,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:08,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-11-18 18:34:08,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:08,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-11-18 18:34:08,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:08,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:34:08,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:08,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-11-18 18:34:08,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:08,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:34:08,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:08,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-11-18 18:34:08,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:08,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:34:08,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:08,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-11-18 18:34:08,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:08,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2022-11-18 18:34:08,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:08,965 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2022-11-18 18:34:08,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:34:08,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765698389] [2022-11-18 18:34:08,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765698389] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:34:08,966 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:34:08,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 18:34:08,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793191909] [2022-11-18 18:34:08,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:34:08,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 18:34:08,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:34:08,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 18:34:08,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-18 18:34:08,968 INFO L87 Difference]: Start difference. First operand 8879 states and 11935 transitions. Second operand has 7 states, 7 states have (on average 20.0) internal successors, (140), 3 states have internal predecessors, (140), 2 states have call successors, (35), 6 states have call predecessors, (35), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-18 18:34:16,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:34:16,784 INFO L93 Difference]: Finished difference Result 19425 states and 26448 transitions. [2022-11-18 18:34:16,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 18:34:16,785 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 3 states have internal predecessors, (140), 2 states have call successors, (35), 6 states have call predecessors, (35), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 273 [2022-11-18 18:34:16,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:34:16,828 INFO L225 Difference]: With dead ends: 19425 [2022-11-18 18:34:16,828 INFO L226 Difference]: Without dead ends: 10598 [2022-11-18 18:34:16,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2022-11-18 18:34:16,858 INFO L413 NwaCegarLoop]: 1273 mSDtfsCounter, 2045 mSDsluCounter, 3880 mSDsCounter, 0 mSdLazyCounter, 4438 mSolverCounterSat, 1533 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2178 SdHoareTripleChecker+Valid, 5153 SdHoareTripleChecker+Invalid, 5971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1533 IncrementalHoareTripleChecker+Valid, 4438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:34:16,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2178 Valid, 5153 Invalid, 5971 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1533 Valid, 4438 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2022-11-18 18:34:16,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10598 states. [2022-11-18 18:34:17,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10598 to 9013. [2022-11-18 18:34:17,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9013 states, 6561 states have (on average 1.3051364121322968) internal successors, (8563), 6706 states have internal predecessors, (8563), 1748 states have call successors, (1748), 694 states have call predecessors, (1748), 703 states have return successors, (1825), 1714 states have call predecessors, (1825), 1747 states have call successors, (1825) [2022-11-18 18:34:17,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9013 states to 9013 states and 12136 transitions. [2022-11-18 18:34:17,391 INFO L78 Accepts]: Start accepts. Automaton has 9013 states and 12136 transitions. Word has length 273 [2022-11-18 18:34:17,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:34:17,392 INFO L495 AbstractCegarLoop]: Abstraction has 9013 states and 12136 transitions. [2022-11-18 18:34:17,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 3 states have internal predecessors, (140), 2 states have call successors, (35), 6 states have call predecessors, (35), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-18 18:34:17,393 INFO L276 IsEmpty]: Start isEmpty. Operand 9013 states and 12136 transitions. [2022-11-18 18:34:17,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2022-11-18 18:34:17,411 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:34:17,411 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:34:17,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 18:34:17,412 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:34:17,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:34:17,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1234671279, now seen corresponding path program 1 times [2022-11-18 18:34:17,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:34:17,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516059289] [2022-11-18 18:34:17,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:34:17,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:34:17,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:18,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:34:18,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:18,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 18:34:18,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:18,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 18:34:18,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:18,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 18:34:18,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:18,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-18 18:34:18,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:18,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 18:34:18,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:18,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 18:34:18,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:18,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-18 18:34:18,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:18,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 18:34:18,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:18,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-18 18:34:18,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:18,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-18 18:34:18,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:18,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 18:34:18,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:18,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-18 18:34:18,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:18,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-18 18:34:18,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:18,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-18 18:34:18,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:18,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-18 18:34:18,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:18,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-18 18:34:18,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:18,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:34:18,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:18,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-18 18:34:18,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:18,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-18 18:34:18,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:18,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-11-18 18:34:18,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:18,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-11-18 18:34:18,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:18,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-11-18 18:34:18,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:18,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-11-18 18:34:18,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:18,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-11-18 18:34:18,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:18,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-11-18 18:34:18,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:18,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:34:18,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:18,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-11-18 18:34:18,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:18,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:34:18,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:18,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-11-18 18:34:18,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:18,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:34:18,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:18,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2022-11-18 18:34:18,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:18,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2022-11-18 18:34:18,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:18,328 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2022-11-18 18:34:18,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:34:18,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516059289] [2022-11-18 18:34:18,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516059289] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:34:18,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [637522052] [2022-11-18 18:34:18,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:34:18,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:34:18,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:34:18,331 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:34:18,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 18:34:19,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:19,524 INFO L263 TraceCheckSpWp]: Trace formula consists of 2989 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 18:34:19,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:34:19,601 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 17 proven. 1 refuted. 0 times theorem prover too weak. 307 trivial. 0 not checked. [2022-11-18 18:34:19,601 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:34:19,794 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2022-11-18 18:34:19,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [637522052] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:34:19,794 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:34:19,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2022-11-18 18:34:19,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564543905] [2022-11-18 18:34:19,795 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:34:19,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 18:34:19,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:34:19,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 18:34:19,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-11-18 18:34:19,797 INFO L87 Difference]: Start difference. First operand 9013 states and 12136 transitions. Second operand has 11 states, 11 states have (on average 16.181818181818183) internal successors, (178), 7 states have internal predecessors, (178), 2 states have call successors, (65), 6 states have call predecessors, (65), 2 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2022-11-18 18:34:31,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:34:31,883 INFO L93 Difference]: Finished difference Result 22125 states and 30771 transitions. [2022-11-18 18:34:31,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 18:34:31,883 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 16.181818181818183) internal successors, (178), 7 states have internal predecessors, (178), 2 states have call successors, (65), 6 states have call predecessors, (65), 2 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) Word has length 277 [2022-11-18 18:34:31,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:34:31,943 INFO L225 Difference]: With dead ends: 22125 [2022-11-18 18:34:31,944 INFO L226 Difference]: Without dead ends: 13164 [2022-11-18 18:34:31,977 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 630 GetRequests, 617 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2022-11-18 18:34:31,978 INFO L413 NwaCegarLoop]: 1819 mSDtfsCounter, 2588 mSDsluCounter, 8600 mSDsCounter, 0 mSdLazyCounter, 7912 mSolverCounterSat, 1759 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2893 SdHoareTripleChecker+Valid, 10419 SdHoareTripleChecker+Invalid, 9671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1759 IncrementalHoareTripleChecker+Valid, 7912 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:34:31,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2893 Valid, 10419 Invalid, 9671 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1759 Valid, 7912 Invalid, 0 Unknown, 0 Unchecked, 11.0s Time] [2022-11-18 18:34:31,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13164 states. [2022-11-18 18:34:32,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13164 to 9033. [2022-11-18 18:34:32,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9033 states, 6581 states have (on average 1.304816897128096) internal successors, (8587), 6726 states have internal predecessors, (8587), 1748 states have call successors, (1748), 694 states have call predecessors, (1748), 703 states have return successors, (1825), 1714 states have call predecessors, (1825), 1747 states have call successors, (1825) [2022-11-18 18:34:32,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9033 states to 9033 states and 12160 transitions. [2022-11-18 18:34:32,740 INFO L78 Accepts]: Start accepts. Automaton has 9033 states and 12160 transitions. Word has length 277 [2022-11-18 18:34:32,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:34:32,741 INFO L495 AbstractCegarLoop]: Abstraction has 9033 states and 12160 transitions. [2022-11-18 18:34:32,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 16.181818181818183) internal successors, (178), 7 states have internal predecessors, (178), 2 states have call successors, (65), 6 states have call predecessors, (65), 2 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2022-11-18 18:34:32,742 INFO L276 IsEmpty]: Start isEmpty. Operand 9033 states and 12160 transitions. [2022-11-18 18:34:32,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2022-11-18 18:34:32,760 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:34:32,760 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:34:32,780 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 18:34:32,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-18 18:34:32,973 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:34:32,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:34:32,974 INFO L85 PathProgramCache]: Analyzing trace with hash -114046788, now seen corresponding path program 1 times [2022-11-18 18:34:32,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:34:32,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763887045] [2022-11-18 18:34:32,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:34:32,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:34:33,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:35,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:34:35,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:35,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 18:34:35,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:35,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 18:34:35,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:35,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 18:34:35,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:35,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-18 18:34:35,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:35,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 18:34:35,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:35,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 18:34:35,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:35,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-18 18:34:35,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:35,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 18:34:35,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:35,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-18 18:34:35,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:35,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-18 18:34:35,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:35,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 18:34:35,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:35,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-18 18:34:35,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:35,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-18 18:34:35,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:35,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-18 18:34:35,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:35,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-18 18:34:35,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:35,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-18 18:34:35,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:36,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:34:36,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:36,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-18 18:34:36,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:36,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-18 18:34:36,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:36,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-11-18 18:34:36,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:36,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-11-18 18:34:36,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:36,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2022-11-18 18:34:36,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:36,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-11-18 18:34:36,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:36,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-11-18 18:34:36,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:36,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-11-18 18:34:36,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:36,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:34:36,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:36,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-11-18 18:34:36,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:36,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:34:36,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:36,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2022-11-18 18:34:36,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:36,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:34:36,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:36,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-11-18 18:34:36,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:36,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-11-18 18:34:36,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:36,309 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2022-11-18 18:34:36,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:34:36,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763887045] [2022-11-18 18:34:36,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763887045] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:34:36,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [813754778] [2022-11-18 18:34:36,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:34:36,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:34:36,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:34:36,311 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:34:36,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 18:34:37,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:37,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 2988 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-18 18:34:37,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:34:37,504 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 307 trivial. 0 not checked. [2022-11-18 18:34:37,504 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:34:37,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [813754778] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:34:37,504 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 18:34:37,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [16] total 19 [2022-11-18 18:34:37,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646405202] [2022-11-18 18:34:37,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:34:37,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 18:34:37,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:34:37,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 18:34:37,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=306, Unknown=0, NotChecked=0, Total=342 [2022-11-18 18:34:37,508 INFO L87 Difference]: Start difference. First operand 9033 states and 12160 transitions. Second operand has 5 states, 5 states have (on average 29.8) internal successors, (149), 5 states have internal predecessors, (149), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-18 18:34:38,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:34:38,414 INFO L93 Difference]: Finished difference Result 19192 states and 26083 transitions. [2022-11-18 18:34:38,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 18:34:38,415 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 5 states have internal predecessors, (149), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 278 [2022-11-18 18:34:38,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:34:38,450 INFO L225 Difference]: With dead ends: 19192 [2022-11-18 18:34:38,451 INFO L226 Difference]: Without dead ends: 10211 [2022-11-18 18:34:38,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 337 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=374, Unknown=0, NotChecked=0, Total=420 [2022-11-18 18:34:38,473 INFO L413 NwaCegarLoop]: 2557 mSDtfsCounter, 793 mSDsluCounter, 7019 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 812 SdHoareTripleChecker+Valid, 9576 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:34:38,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [812 Valid, 9576 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:34:38,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10211 states. [2022-11-18 18:34:39,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10211 to 9037. [2022-11-18 18:34:39,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9037 states, 6585 states have (on average 1.3046317388003037) internal successors, (8591), 6730 states have internal predecessors, (8591), 1748 states have call successors, (1748), 694 states have call predecessors, (1748), 703 states have return successors, (1825), 1714 states have call predecessors, (1825), 1747 states have call successors, (1825) [2022-11-18 18:34:39,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9037 states to 9037 states and 12164 transitions. [2022-11-18 18:34:39,071 INFO L78 Accepts]: Start accepts. Automaton has 9037 states and 12164 transitions. Word has length 278 [2022-11-18 18:34:39,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:34:39,072 INFO L495 AbstractCegarLoop]: Abstraction has 9037 states and 12164 transitions. [2022-11-18 18:34:39,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 5 states have internal predecessors, (149), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-18 18:34:39,072 INFO L276 IsEmpty]: Start isEmpty. Operand 9037 states and 12164 transitions. [2022-11-18 18:34:39,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2022-11-18 18:34:39,091 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:34:39,091 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:34:39,107 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 18:34:39,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:34:39,303 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:34:39,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:34:39,304 INFO L85 PathProgramCache]: Analyzing trace with hash 572260347, now seen corresponding path program 2 times [2022-11-18 18:34:39,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:34:39,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191765696] [2022-11-18 18:34:39,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:34:39,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:34:39,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:41,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:34:41,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:41,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 18:34:41,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:41,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 18:34:41,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:41,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 18:34:41,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:41,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-18 18:34:41,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:41,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 18:34:41,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:41,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 18:34:41,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:41,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-18 18:34:41,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:41,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 18:34:41,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:41,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-18 18:34:41,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:41,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-18 18:34:41,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:41,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 18:34:41,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:41,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-18 18:34:41,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:41,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-18 18:34:41,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:41,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-18 18:34:41,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:41,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-18 18:34:41,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:41,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-18 18:34:41,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:41,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:34:41,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:41,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-18 18:34:41,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:41,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-18 18:34:41,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:41,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-11-18 18:34:41,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:41,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2022-11-18 18:34:41,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:41,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-11-18 18:34:41,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:41,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2022-11-18 18:34:41,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:41,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2022-11-18 18:34:41,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:41,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-11-18 18:34:41,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:41,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:34:41,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:41,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-11-18 18:34:41,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:41,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:34:41,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:41,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-11-18 18:34:41,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:41,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:34:41,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:41,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2022-11-18 18:34:41,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:41,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2022-11-18 18:34:41,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:41,918 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2022-11-18 18:34:41,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:34:41,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191765696] [2022-11-18 18:34:41,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191765696] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:34:41,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [838601661] [2022-11-18 18:34:41,919 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 18:34:41,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:34:41,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:34:41,920 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:34:41,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 18:34:43,641 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 18:34:43,642 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:34:43,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 3043 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-18 18:34:43,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:34:43,724 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2022-11-18 18:34:43,724 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:34:43,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [838601661] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:34:43,725 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 18:34:43,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [16] total 18 [2022-11-18 18:34:43,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666445375] [2022-11-18 18:34:43,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:34:43,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 18:34:43,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:34:43,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:34:43,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-11-18 18:34:43,727 INFO L87 Difference]: Start difference. First operand 9037 states and 12164 transitions. Second operand has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-18 18:34:44,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:34:44,521 INFO L93 Difference]: Finished difference Result 18052 states and 24364 transitions. [2022-11-18 18:34:44,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 18:34:44,522 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 285 [2022-11-18 18:34:44,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:34:44,561 INFO L225 Difference]: With dead ends: 18052 [2022-11-18 18:34:44,561 INFO L226 Difference]: Without dead ends: 9044 [2022-11-18 18:34:44,589 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 343 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=304, Unknown=0, NotChecked=0, Total=342 [2022-11-18 18:34:44,592 INFO L413 NwaCegarLoop]: 2133 mSDtfsCounter, 2 mSDsluCounter, 4260 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 6393 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:34:44,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 6393 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:34:44,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9044 states. [2022-11-18 18:34:45,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9044 to 9044. [2022-11-18 18:34:45,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9044 states, 6592 states have (on average 1.3043082524271845) internal successors, (8598), 6737 states have internal predecessors, (8598), 1748 states have call successors, (1748), 694 states have call predecessors, (1748), 703 states have return successors, (1825), 1714 states have call predecessors, (1825), 1747 states have call successors, (1825) [2022-11-18 18:34:45,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9044 states to 9044 states and 12171 transitions. [2022-11-18 18:34:45,193 INFO L78 Accepts]: Start accepts. Automaton has 9044 states and 12171 transitions. Word has length 285 [2022-11-18 18:34:45,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:34:45,194 INFO L495 AbstractCegarLoop]: Abstraction has 9044 states and 12171 transitions. [2022-11-18 18:34:45,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-18 18:34:45,195 INFO L276 IsEmpty]: Start isEmpty. Operand 9044 states and 12171 transitions. [2022-11-18 18:34:45,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2022-11-18 18:34:45,214 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:34:45,215 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:34:45,232 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 18:34:45,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:34:45,428 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:34:45,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:34:45,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1108876325, now seen corresponding path program 1 times [2022-11-18 18:34:45,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:34:45,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852479209] [2022-11-18 18:34:45,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:34:45,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:34:45,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:47,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:34:47,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:47,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 18:34:47,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:47,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 18:34:47,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:47,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 18:34:47,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:47,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-18 18:34:47,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:47,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 18:34:47,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:47,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 18:34:47,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:47,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-18 18:34:47,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:47,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 18:34:47,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:47,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-18 18:34:47,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:47,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-18 18:34:47,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:47,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-18 18:34:47,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:47,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-18 18:34:47,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:47,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-18 18:34:47,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:47,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-18 18:34:47,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:47,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-18 18:34:47,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:47,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-18 18:34:47,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:47,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:34:47,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:47,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-11-18 18:34:47,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:47,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-11-18 18:34:47,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:47,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-11-18 18:34:47,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:47,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-11-18 18:34:47,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:47,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-11-18 18:34:47,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:47,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-11-18 18:34:47,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:47,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-11-18 18:34:47,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:47,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-11-18 18:34:47,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:47,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:34:47,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:47,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-11-18 18:34:47,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:47,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:34:47,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:47,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2022-11-18 18:34:47,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:47,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:34:47,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:47,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-11-18 18:34:47,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:47,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2022-11-18 18:34:47,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:47,982 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2022-11-18 18:34:47,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:34:47,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852479209] [2022-11-18 18:34:47,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852479209] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:34:47,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1246690941] [2022-11-18 18:34:47,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:34:47,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:34:47,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:34:47,985 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:34:47,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 18:34:49,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:49,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 3088 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-18 18:34:49,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:34:49,440 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 122 proven. 1 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2022-11-18 18:34:49,441 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:34:49,709 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2022-11-18 18:34:49,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1246690941] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:34:49,710 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:34:49,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 5, 5] total 22 [2022-11-18 18:34:49,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995945015] [2022-11-18 18:34:49,710 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:34:49,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-18 18:34:49,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:34:49,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-18 18:34:49,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2022-11-18 18:34:49,713 INFO L87 Difference]: Start difference. First operand 9044 states and 12171 transitions. Second operand has 22 states, 20 states have (on average 12.05) internal successors, (241), 15 states have internal predecessors, (241), 4 states have call successors, (79), 6 states have call predecessors, (79), 7 states have return successors, (64), 5 states have call predecessors, (64), 4 states have call successors, (64) [2022-11-18 18:35:11,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:35:11,132 INFO L93 Difference]: Finished difference Result 21960 states and 30601 transitions. [2022-11-18 18:35:11,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-18 18:35:11,133 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 12.05) internal successors, (241), 15 states have internal predecessors, (241), 4 states have call successors, (79), 6 states have call predecessors, (79), 7 states have return successors, (64), 5 states have call predecessors, (64), 4 states have call successors, (64) Word has length 288 [2022-11-18 18:35:11,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:35:11,195 INFO L225 Difference]: With dead ends: 21960 [2022-11-18 18:35:11,195 INFO L226 Difference]: Without dead ends: 12945 [2022-11-18 18:35:11,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 675 GetRequests, 634 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=260, Invalid=1546, Unknown=0, NotChecked=0, Total=1806 [2022-11-18 18:35:11,231 INFO L413 NwaCegarLoop]: 1985 mSDtfsCounter, 3945 mSDsluCounter, 24062 mSDsCounter, 0 mSdLazyCounter, 19471 mSolverCounterSat, 2474 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4074 SdHoareTripleChecker+Valid, 26047 SdHoareTripleChecker+Invalid, 21945 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2474 IncrementalHoareTripleChecker+Valid, 19471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.5s IncrementalHoareTripleChecker+Time [2022-11-18 18:35:11,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4074 Valid, 26047 Invalid, 21945 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2474 Valid, 19471 Invalid, 0 Unknown, 0 Unchecked, 19.5s Time] [2022-11-18 18:35:11,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12945 states. [2022-11-18 18:35:12,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12945 to 9083. [2022-11-18 18:35:12,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9083 states, 6624 states have (on average 1.3032910628019323) internal successors, (8633), 6769 states have internal predecessors, (8633), 1754 states have call successors, (1754), 695 states have call predecessors, (1754), 704 states have return successors, (1831), 1720 states have call predecessors, (1831), 1753 states have call successors, (1831) [2022-11-18 18:35:12,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9083 states to 9083 states and 12218 transitions. [2022-11-18 18:35:12,146 INFO L78 Accepts]: Start accepts. Automaton has 9083 states and 12218 transitions. Word has length 288 [2022-11-18 18:35:12,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:35:12,147 INFO L495 AbstractCegarLoop]: Abstraction has 9083 states and 12218 transitions. [2022-11-18 18:35:12,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 12.05) internal successors, (241), 15 states have internal predecessors, (241), 4 states have call successors, (79), 6 states have call predecessors, (79), 7 states have return successors, (64), 5 states have call predecessors, (64), 4 states have call successors, (64) [2022-11-18 18:35:12,147 INFO L276 IsEmpty]: Start isEmpty. Operand 9083 states and 12218 transitions. [2022-11-18 18:35:12,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2022-11-18 18:35:12,166 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:35:12,167 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:35:12,190 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-18 18:35:12,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-18 18:35:12,391 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:35:12,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:35:12,391 INFO L85 PathProgramCache]: Analyzing trace with hash -1825452050, now seen corresponding path program 1 times [2022-11-18 18:35:12,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:35:12,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898518110] [2022-11-18 18:35:12,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:35:12,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:35:12,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:12,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:35:12,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:12,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 18:35:12,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:12,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 18:35:12,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:12,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 18:35:12,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:12,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-18 18:35:12,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:12,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 18:35:12,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:12,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 18:35:12,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:12,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-18 18:35:12,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:12,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 18:35:12,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:12,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-18 18:35:12,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:12,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-18 18:35:12,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:13,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-18 18:35:13,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:13,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-18 18:35:13,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:13,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-18 18:35:13,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:13,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-18 18:35:13,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:13,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:35:13,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:13,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:35:13,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:13,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-18 18:35:13,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:13,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 18:35:13,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:13,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-18 18:35:13,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:13,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:35:13,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:13,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-18 18:35:13,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:13,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-18 18:35:13,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:13,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 18:35:13,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:13,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-18 18:35:13,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:13,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:35:13,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:13,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-18 18:35:13,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:13,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:35:13,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:13,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-18 18:35:13,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:13,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-11-18 18:35:13,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:13,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-11-18 18:35:13,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:13,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-11-18 18:35:13,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:13,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-11-18 18:35:13,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:13,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-11-18 18:35:13,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:13,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:35:13,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:13,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2022-11-18 18:35:13,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:13,343 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2022-11-18 18:35:13,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:35:13,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898518110] [2022-11-18 18:35:13,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898518110] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:35:13,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:35:13,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 18:35:13,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852570525] [2022-11-18 18:35:13,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:35:13,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-18 18:35:13,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:35:13,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-18 18:35:13,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-11-18 18:35:13,348 INFO L87 Difference]: Start difference. First operand 9083 states and 12218 transitions. Second operand has 9 states, 9 states have (on average 18.555555555555557) internal successors, (167), 4 states have internal predecessors, (167), 2 states have call successors, (38), 7 states have call predecessors, (38), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-11-18 18:35:23,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:35:23,800 INFO L93 Difference]: Finished difference Result 19741 states and 26951 transitions. [2022-11-18 18:35:23,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 18:35:23,801 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 18.555555555555557) internal successors, (167), 4 states have internal predecessors, (167), 2 states have call successors, (38), 7 states have call predecessors, (38), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 310 [2022-11-18 18:35:23,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:35:23,843 INFO L225 Difference]: With dead ends: 19741 [2022-11-18 18:35:23,843 INFO L226 Difference]: Without dead ends: 10720 [2022-11-18 18:35:23,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2022-11-18 18:35:23,870 INFO L413 NwaCegarLoop]: 1288 mSDtfsCounter, 1346 mSDsluCounter, 5673 mSDsCounter, 0 mSdLazyCounter, 6463 mSolverCounterSat, 570 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1519 SdHoareTripleChecker+Valid, 6961 SdHoareTripleChecker+Invalid, 7033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 570 IncrementalHoareTripleChecker+Valid, 6463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2022-11-18 18:35:23,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1519 Valid, 6961 Invalid, 7033 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [570 Valid, 6463 Invalid, 0 Unknown, 0 Unchecked, 9.2s Time] [2022-11-18 18:35:23,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10720 states. [2022-11-18 18:35:24,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10720 to 9101. [2022-11-18 18:35:24,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9101 states, 6642 states have (on average 1.3020174646190907) internal successors, (8648), 6787 states have internal predecessors, (8648), 1754 states have call successors, (1754), 695 states have call predecessors, (1754), 704 states have return successors, (1831), 1720 states have call predecessors, (1831), 1753 states have call successors, (1831) [2022-11-18 18:35:24,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9101 states to 9101 states and 12233 transitions. [2022-11-18 18:35:24,688 INFO L78 Accepts]: Start accepts. Automaton has 9101 states and 12233 transitions. Word has length 310 [2022-11-18 18:35:24,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:35:24,689 INFO L495 AbstractCegarLoop]: Abstraction has 9101 states and 12233 transitions. [2022-11-18 18:35:24,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 18.555555555555557) internal successors, (167), 4 states have internal predecessors, (167), 2 states have call successors, (38), 7 states have call predecessors, (38), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-11-18 18:35:24,690 INFO L276 IsEmpty]: Start isEmpty. Operand 9101 states and 12233 transitions. [2022-11-18 18:35:24,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2022-11-18 18:35:24,713 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:35:24,714 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:35:24,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 18:35:24,714 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:35:24,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:35:24,715 INFO L85 PathProgramCache]: Analyzing trace with hash 145817159, now seen corresponding path program 1 times [2022-11-18 18:35:24,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:35:24,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216291077] [2022-11-18 18:35:24,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:35:24,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:35:24,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:25,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:35:25,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:25,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 18:35:25,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:25,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 18:35:25,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:25,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 18:35:25,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:25,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-18 18:35:25,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:25,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 18:35:25,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:25,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 18:35:25,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:25,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-18 18:35:25,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:25,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 18:35:25,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:25,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-18 18:35:25,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:25,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-18 18:35:25,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:25,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-18 18:35:25,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:25,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-18 18:35:25,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:25,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-18 18:35:25,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:25,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-18 18:35:25,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:25,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:35:25,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:25,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:35:25,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:25,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-18 18:35:25,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:25,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 18:35:25,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:25,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-18 18:35:25,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:25,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:35:25,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:25,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-18 18:35:25,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:25,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-18 18:35:25,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:25,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 18:35:25,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:25,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-18 18:35:25,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:25,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:35:25,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:25,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-18 18:35:25,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:25,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:35:25,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:25,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-18 18:35:25,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:25,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-11-18 18:35:25,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:25,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2022-11-18 18:35:25,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:25,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2022-11-18 18:35:25,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:25,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2022-11-18 18:35:25,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:25,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-11-18 18:35:25,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:25,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:35:25,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:25,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2022-11-18 18:35:25,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:25,689 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 372 trivial. 0 not checked. [2022-11-18 18:35:25,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:35:25,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216291077] [2022-11-18 18:35:25,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216291077] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:35:25,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:35:25,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-18 18:35:25,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574442398] [2022-11-18 18:35:25,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:35:25,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 18:35:25,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:35:25,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 18:35:25,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-18 18:35:25,693 INFO L87 Difference]: Start difference. First operand 9101 states and 12233 transitions. Second operand has 8 states, 8 states have (on average 19.0) internal successors, (152), 3 states have internal predecessors, (152), 2 states have call successors, (34), 7 states have call predecessors, (34), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-18 18:35:35,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:35:35,347 INFO L93 Difference]: Finished difference Result 19774 states and 26957 transitions. [2022-11-18 18:35:35,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 18:35:35,348 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 19.0) internal successors, (152), 3 states have internal predecessors, (152), 2 states have call successors, (34), 7 states have call predecessors, (34), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 311 [2022-11-18 18:35:35,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:35:35,390 INFO L225 Difference]: With dead ends: 19774 [2022-11-18 18:35:35,390 INFO L226 Difference]: Without dead ends: 10735 [2022-11-18 18:35:35,416 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-18 18:35:35,417 INFO L413 NwaCegarLoop]: 1269 mSDtfsCounter, 1593 mSDsluCounter, 4268 mSDsCounter, 0 mSdLazyCounter, 5250 mSolverCounterSat, 738 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1715 SdHoareTripleChecker+Valid, 5537 SdHoareTripleChecker+Invalid, 5988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 738 IncrementalHoareTripleChecker+Valid, 5250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2022-11-18 18:35:35,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1715 Valid, 5537 Invalid, 5988 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [738 Valid, 5250 Invalid, 0 Unknown, 0 Unchecked, 8.5s Time] [2022-11-18 18:35:35,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10735 states. [2022-11-18 18:35:36,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10735 to 9161. [2022-11-18 18:35:36,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9161 states, 6702 states have (on average 1.2993136377200836) internal successors, (8708), 6847 states have internal predecessors, (8708), 1754 states have call successors, (1754), 695 states have call predecessors, (1754), 704 states have return successors, (1831), 1720 states have call predecessors, (1831), 1753 states have call successors, (1831) [2022-11-18 18:35:36,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9161 states to 9161 states and 12293 transitions. [2022-11-18 18:35:36,241 INFO L78 Accepts]: Start accepts. Automaton has 9161 states and 12293 transitions. Word has length 311 [2022-11-18 18:35:36,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:35:36,242 INFO L495 AbstractCegarLoop]: Abstraction has 9161 states and 12293 transitions. [2022-11-18 18:35:36,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 19.0) internal successors, (152), 3 states have internal predecessors, (152), 2 states have call successors, (34), 7 states have call predecessors, (34), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-18 18:35:36,243 INFO L276 IsEmpty]: Start isEmpty. Operand 9161 states and 12293 transitions. [2022-11-18 18:35:36,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2022-11-18 18:35:36,264 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:35:36,265 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:35:36,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 18:35:36,265 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:35:36,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:35:36,266 INFO L85 PathProgramCache]: Analyzing trace with hash -2018293981, now seen corresponding path program 1 times [2022-11-18 18:35:36,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:35:36,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901555431] [2022-11-18 18:35:36,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:35:36,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:35:36,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:36,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:35:36,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:36,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 18:35:36,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:36,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 18:35:36,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:36,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 18:35:36,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:36,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-18 18:35:36,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:36,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 18:35:36,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:36,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 18:35:36,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:36,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-18 18:35:36,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:36,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 18:35:36,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:36,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-18 18:35:36,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:36,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-18 18:35:36,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:36,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-18 18:35:36,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:36,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-18 18:35:36,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:36,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-18 18:35:36,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:36,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-18 18:35:36,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:36,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:35:36,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:36,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:35:36,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:36,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-18 18:35:36,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:36,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 18:35:36,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:36,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-18 18:35:36,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:36,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:35:36,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:36,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-18 18:35:36,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:36,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-18 18:35:36,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:36,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 18:35:36,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:36,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-18 18:35:36,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:36,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:35:36,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:36,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-18 18:35:36,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:36,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:35:36,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:36,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-18 18:35:36,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:36,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-11-18 18:35:36,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:36,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-11-18 18:35:36,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:36,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-11-18 18:35:36,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:36,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-11-18 18:35:36,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:36,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2022-11-18 18:35:36,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:36,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:35:36,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:36,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-11-18 18:35:36,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:36,954 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2022-11-18 18:35:36,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:35:36,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901555431] [2022-11-18 18:35:36,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901555431] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:35:36,955 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:35:36,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-18 18:35:36,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116313305] [2022-11-18 18:35:36,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:35:36,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 18:35:36,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:35:36,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 18:35:36,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-18 18:35:36,957 INFO L87 Difference]: Start difference. First operand 9161 states and 12293 transitions. Second operand has 8 states, 8 states have (on average 21.5) internal successors, (172), 3 states have internal predecessors, (172), 3 states have call successors, (38), 7 states have call predecessors, (38), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2022-11-18 18:35:49,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:35:49,030 INFO L93 Difference]: Finished difference Result 27183 states and 36929 transitions. [2022-11-18 18:35:49,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-18 18:35:49,031 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.5) internal successors, (172), 3 states have internal predecessors, (172), 3 states have call successors, (38), 7 states have call predecessors, (38), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) Word has length 312 [2022-11-18 18:35:49,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:35:49,101 INFO L225 Difference]: With dead ends: 27183 [2022-11-18 18:35:49,101 INFO L226 Difference]: Without dead ends: 18084 [2022-11-18 18:35:49,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=109, Invalid=233, Unknown=0, NotChecked=0, Total=342 [2022-11-18 18:35:49,128 INFO L413 NwaCegarLoop]: 1942 mSDtfsCounter, 5541 mSDsluCounter, 4268 mSDsCounter, 0 mSdLazyCounter, 5697 mSolverCounterSat, 3658 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5892 SdHoareTripleChecker+Valid, 6210 SdHoareTripleChecker+Invalid, 9355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3658 IncrementalHoareTripleChecker+Valid, 5697 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:35:49,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5892 Valid, 6210 Invalid, 9355 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3658 Valid, 5697 Invalid, 0 Unknown, 0 Unchecked, 10.0s Time] [2022-11-18 18:35:49,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18084 states. [2022-11-18 18:35:50,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18084 to 15238. [2022-11-18 18:35:50,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15238 states, 11130 states have (on average 1.2938005390835579) internal successors, (14400), 11366 states have internal predecessors, (14400), 2908 states have call successors, (2908), 1179 states have call predecessors, (2908), 1199 states have return successors, (2997), 2869 states have call predecessors, (2997), 2907 states have call successors, (2997) [2022-11-18 18:35:50,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15238 states to 15238 states and 20305 transitions. [2022-11-18 18:35:50,689 INFO L78 Accepts]: Start accepts. Automaton has 15238 states and 20305 transitions. Word has length 312 [2022-11-18 18:35:50,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:35:50,689 INFO L495 AbstractCegarLoop]: Abstraction has 15238 states and 20305 transitions. [2022-11-18 18:35:50,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.5) internal successors, (172), 3 states have internal predecessors, (172), 3 states have call successors, (38), 7 states have call predecessors, (38), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2022-11-18 18:35:50,690 INFO L276 IsEmpty]: Start isEmpty. Operand 15238 states and 20305 transitions. [2022-11-18 18:35:50,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2022-11-18 18:35:50,712 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:35:50,713 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:35:50,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 18:35:50,713 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:35:50,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:35:50,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1891095827, now seen corresponding path program 1 times [2022-11-18 18:35:50,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:35:50,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332080839] [2022-11-18 18:35:50,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:35:50,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:35:50,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:51,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:35:51,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:51,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 18:35:51,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:51,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 18:35:51,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:51,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 18:35:51,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:51,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-18 18:35:51,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:51,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 18:35:51,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:51,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 18:35:51,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:51,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-18 18:35:51,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:51,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 18:35:51,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:51,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-18 18:35:51,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:51,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-18 18:35:51,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:51,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-18 18:35:51,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:51,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-18 18:35:51,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:52,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-18 18:35:52,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:52,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-18 18:35:52,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:52,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-18 18:35:52,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:52,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-11-18 18:35:52,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:52,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-18 18:35:52,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:52,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-11-18 18:35:52,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:52,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:35:52,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:52,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-11-18 18:35:52,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:52,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-11-18 18:35:52,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:52,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-11-18 18:35:52,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:52,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-11-18 18:35:52,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:52,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:35:52,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:52,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-11-18 18:35:52,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:52,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:35:52,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:52,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-11-18 18:35:52,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:52,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-11-18 18:35:52,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:52,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-11-18 18:35:52,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:52,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:35:52,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:52,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:35:52,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:52,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 18:35:52,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:52,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-18 18:35:52,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:52,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-11-18 18:35:52,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:52,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-18 18:35:52,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:52,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-11-18 18:35:52,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:52,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:35:52,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:52,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2022-11-18 18:35:52,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:52,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2022-11-18 18:35:52,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:52,220 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 359 trivial. 0 not checked. [2022-11-18 18:35:52,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:35:52,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332080839] [2022-11-18 18:35:52,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332080839] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:35:52,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:35:52,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-18 18:35:52,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427658032] [2022-11-18 18:35:52,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:35:52,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 18:35:52,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:35:52,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 18:35:52,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-18 18:35:52,224 INFO L87 Difference]: Start difference. First operand 15238 states and 20305 transitions. Second operand has 8 states, 8 states have (on average 21.0) internal successors, (168), 4 states have internal predecessors, (168), 2 states have call successors, (43), 6 states have call predecessors, (43), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-11-18 18:36:01,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:36:01,021 INFO L93 Difference]: Finished difference Result 33237 states and 44924 transitions. [2022-11-18 18:36:01,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 18:36:01,021 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.0) internal successors, (168), 4 states have internal predecessors, (168), 2 states have call successors, (43), 6 states have call predecessors, (43), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 317 [2022-11-18 18:36:01,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:36:01,096 INFO L225 Difference]: With dead ends: 33237 [2022-11-18 18:36:01,096 INFO L226 Difference]: Without dead ends: 18061 [2022-11-18 18:36:01,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2022-11-18 18:36:01,310 INFO L413 NwaCegarLoop]: 1276 mSDtfsCounter, 2471 mSDsluCounter, 4165 mSDsCounter, 0 mSdLazyCounter, 5104 mSolverCounterSat, 1999 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2600 SdHoareTripleChecker+Valid, 5441 SdHoareTripleChecker+Invalid, 7103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1999 IncrementalHoareTripleChecker+Valid, 5104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-11-18 18:36:01,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2600 Valid, 5441 Invalid, 7103 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1999 Valid, 5104 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2022-11-18 18:36:01,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18061 states. [2022-11-18 18:36:02,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18061 to 15262. [2022-11-18 18:36:02,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15262 states, 11154 states have (on average 1.293168370091447) internal successors, (14424), 11390 states have internal predecessors, (14424), 2908 states have call successors, (2908), 1179 states have call predecessors, (2908), 1199 states have return successors, (2997), 2869 states have call predecessors, (2997), 2907 states have call successors, (2997) [2022-11-18 18:36:02,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15262 states to 15262 states and 20329 transitions. [2022-11-18 18:36:02,709 INFO L78 Accepts]: Start accepts. Automaton has 15262 states and 20329 transitions. Word has length 317 [2022-11-18 18:36:02,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:36:02,710 INFO L495 AbstractCegarLoop]: Abstraction has 15262 states and 20329 transitions. [2022-11-18 18:36:02,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.0) internal successors, (168), 4 states have internal predecessors, (168), 2 states have call successors, (43), 6 states have call predecessors, (43), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-11-18 18:36:02,710 INFO L276 IsEmpty]: Start isEmpty. Operand 15262 states and 20329 transitions. [2022-11-18 18:36:02,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2022-11-18 18:36:02,734 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:36:02,734 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:36:02,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-18 18:36:02,735 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:36:02,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:36:02,735 INFO L85 PathProgramCache]: Analyzing trace with hash -1223713937, now seen corresponding path program 1 times [2022-11-18 18:36:02,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:36:02,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026807598] [2022-11-18 18:36:02,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:36:02,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:36:02,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:03,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:36:03,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:03,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 18:36:03,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:03,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 18:36:03,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:03,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 18:36:03,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:03,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-18 18:36:03,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:03,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 18:36:03,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:03,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 18:36:03,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:03,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-18 18:36:03,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:03,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 18:36:03,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:03,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-18 18:36:03,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:03,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-18 18:36:03,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:03,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-18 18:36:03,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:03,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-18 18:36:03,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:03,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-18 18:36:03,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:03,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-18 18:36:03,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:03,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-18 18:36:03,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:03,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-11-18 18:36:03,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:03,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-18 18:36:03,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:03,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-11-18 18:36:03,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:03,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:36:03,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:03,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-11-18 18:36:03,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:03,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-11-18 18:36:03,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:03,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-11-18 18:36:03,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:03,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-11-18 18:36:03,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:03,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:36:03,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:03,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-11-18 18:36:03,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:03,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:36:03,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:03,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-11-18 18:36:03,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:03,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-11-18 18:36:03,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:03,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-11-18 18:36:03,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:03,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:36:03,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:03,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:36:03,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:03,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 18:36:03,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:03,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-18 18:36:03,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:03,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-11-18 18:36:03,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:03,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-18 18:36:03,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:03,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-11-18 18:36:03,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:03,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:36:03,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:03,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2022-11-18 18:36:03,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:03,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2022-11-18 18:36:03,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:03,732 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 358 trivial. 0 not checked. [2022-11-18 18:36:03,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:36:03,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026807598] [2022-11-18 18:36:03,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026807598] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:36:03,733 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:36:03,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 18:36:03,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310729480] [2022-11-18 18:36:03,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:36:03,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 18:36:03,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:36:03,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 18:36:03,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-18 18:36:03,735 INFO L87 Difference]: Start difference. First operand 15262 states and 20329 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (43), 6 states have call predecessors, (43), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-11-18 18:36:13,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:36:13,890 INFO L93 Difference]: Finished difference Result 33401 states and 45140 transitions. [2022-11-18 18:36:13,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 18:36:13,892 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (43), 6 states have call predecessors, (43), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 317 [2022-11-18 18:36:13,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:36:13,964 INFO L225 Difference]: With dead ends: 33401 [2022-11-18 18:36:13,965 INFO L226 Difference]: Without dead ends: 18201 [2022-11-18 18:36:14,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2022-11-18 18:36:14,007 INFO L413 NwaCegarLoop]: 1278 mSDtfsCounter, 2092 mSDsluCounter, 3910 mSDsCounter, 0 mSdLazyCounter, 4395 mSolverCounterSat, 1570 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2221 SdHoareTripleChecker+Valid, 5188 SdHoareTripleChecker+Invalid, 5965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1570 IncrementalHoareTripleChecker+Valid, 4395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:36:14,007 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2221 Valid, 5188 Invalid, 5965 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1570 Valid, 4395 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2022-11-18 18:36:14,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18201 states. [2022-11-18 18:36:15,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18201 to 15272. [2022-11-18 18:36:15,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15272 states, 11164 states have (on average 1.2929057685417413) internal successors, (14434), 11400 states have internal predecessors, (14434), 2908 states have call successors, (2908), 1179 states have call predecessors, (2908), 1199 states have return successors, (2997), 2869 states have call predecessors, (2997), 2907 states have call successors, (2997) [2022-11-18 18:36:15,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15272 states to 15272 states and 20339 transitions. [2022-11-18 18:36:15,310 INFO L78 Accepts]: Start accepts. Automaton has 15272 states and 20339 transitions. Word has length 317 [2022-11-18 18:36:15,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:36:15,310 INFO L495 AbstractCegarLoop]: Abstraction has 15272 states and 20339 transitions. [2022-11-18 18:36:15,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (43), 6 states have call predecessors, (43), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-11-18 18:36:15,311 INFO L276 IsEmpty]: Start isEmpty. Operand 15272 states and 20339 transitions. [2022-11-18 18:36:15,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2022-11-18 18:36:15,332 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:36:15,333 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 10, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:36:15,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-18 18:36:15,333 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:36:15,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:36:15,334 INFO L85 PathProgramCache]: Analyzing trace with hash 101931464, now seen corresponding path program 1 times [2022-11-18 18:36:15,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:36:15,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346821050] [2022-11-18 18:36:15,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:36:15,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:36:15,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:16,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:36:16,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:16,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 18:36:16,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:16,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 18:36:16,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:16,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 18:36:16,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:16,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-18 18:36:16,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:16,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 18:36:16,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:16,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 18:36:16,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:16,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-18 18:36:16,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:16,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 18:36:16,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:16,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-18 18:36:16,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:16,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-18 18:36:16,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:16,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-18 18:36:16,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:16,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-18 18:36:16,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:16,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-18 18:36:16,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:16,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-18 18:36:16,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:16,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-18 18:36:16,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:16,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-18 18:36:16,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:16,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-11-18 18:36:16,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:16,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-11-18 18:36:16,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:16,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-11-18 18:36:16,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:16,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:36:16,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:16,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-11-18 18:36:16,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:16,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-11-18 18:36:16,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:16,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-11-18 18:36:16,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:16,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-11-18 18:36:16,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:16,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-11-18 18:36:16,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:16,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-11-18 18:36:16,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:16,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-11-18 18:36:16,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:16,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-11-18 18:36:16,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:16,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:36:16,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:16,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-11-18 18:36:16,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:16,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:36:16,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:16,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-11-18 18:36:16,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:16,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:36:16,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:16,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2022-11-18 18:36:16,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:16,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-11-18 18:36:16,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:16,742 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked. [2022-11-18 18:36:16,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:36:16,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346821050] [2022-11-18 18:36:16,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346821050] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:36:16,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1996933532] [2022-11-18 18:36:16,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:36:16,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:36:16,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:36:16,747 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:36:16,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-18 18:36:18,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:18,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 3424 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-18 18:36:18,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:36:18,344 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 127 proven. 50 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2022-11-18 18:36:18,344 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:36:18,697 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 34 proven. 3 refuted. 0 times theorem prover too weak. 387 trivial. 0 not checked. [2022-11-18 18:36:18,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1996933532] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:36:18,697 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:36:18,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 6] total 20 [2022-11-18 18:36:18,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281812737] [2022-11-18 18:36:18,698 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:36:18,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-18 18:36:18,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:36:18,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-18 18:36:18,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2022-11-18 18:36:18,700 INFO L87 Difference]: Start difference. First operand 15272 states and 20339 transitions. Second operand has 20 states, 20 states have (on average 12.15) internal successors, (243), 15 states have internal predecessors, (243), 2 states have call successors, (81), 6 states have call predecessors, (81), 5 states have return successors, (63), 3 states have call predecessors, (63), 2 states have call successors, (63) [2022-11-18 18:36:39,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:36:39,249 INFO L93 Difference]: Finished difference Result 36874 states and 50741 transitions. [2022-11-18 18:36:39,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 18:36:39,250 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 12.15) internal successors, (243), 15 states have internal predecessors, (243), 2 states have call successors, (81), 6 states have call predecessors, (81), 5 states have return successors, (63), 3 states have call predecessors, (63), 2 states have call successors, (63) Word has length 316 [2022-11-18 18:36:39,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:36:39,349 INFO L225 Difference]: With dead ends: 36874 [2022-11-18 18:36:39,349 INFO L226 Difference]: Without dead ends: 21632 [2022-11-18 18:36:39,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 734 GetRequests, 697 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=239, Invalid=1243, Unknown=0, NotChecked=0, Total=1482 [2022-11-18 18:36:39,404 INFO L413 NwaCegarLoop]: 1994 mSDtfsCounter, 3509 mSDsluCounter, 19217 mSDsCounter, 0 mSdLazyCounter, 15793 mSolverCounterSat, 2369 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3644 SdHoareTripleChecker+Valid, 21211 SdHoareTripleChecker+Invalid, 18162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2369 IncrementalHoareTripleChecker+Valid, 15793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.5s IncrementalHoareTripleChecker+Time [2022-11-18 18:36:39,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3644 Valid, 21211 Invalid, 18162 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2369 Valid, 15793 Invalid, 0 Unknown, 0 Unchecked, 17.5s Time] [2022-11-18 18:36:39,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21632 states. [2022-11-18 18:36:40,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21632 to 15316. [2022-11-18 18:36:40,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15316 states, 11202 states have (on average 1.291644349223353) internal successors, (14469), 11438 states have internal predecessors, (14469), 2908 states have call successors, (2908), 1179 states have call predecessors, (2908), 1205 states have return successors, (3045), 2875 states have call predecessors, (3045), 2907 states have call successors, (3045) [2022-11-18 18:36:40,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15316 states to 15316 states and 20422 transitions. [2022-11-18 18:36:40,901 INFO L78 Accepts]: Start accepts. Automaton has 15316 states and 20422 transitions. Word has length 316 [2022-11-18 18:36:40,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:36:40,902 INFO L495 AbstractCegarLoop]: Abstraction has 15316 states and 20422 transitions. [2022-11-18 18:36:40,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 12.15) internal successors, (243), 15 states have internal predecessors, (243), 2 states have call successors, (81), 6 states have call predecessors, (81), 5 states have return successors, (63), 3 states have call predecessors, (63), 2 states have call successors, (63) [2022-11-18 18:36:40,902 INFO L276 IsEmpty]: Start isEmpty. Operand 15316 states and 20422 transitions. [2022-11-18 18:36:40,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2022-11-18 18:36:40,921 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:36:40,922 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:36:40,941 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-18 18:36:41,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-18 18:36:41,137 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:36:41,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:36:41,137 INFO L85 PathProgramCache]: Analyzing trace with hash -883838267, now seen corresponding path program 1 times [2022-11-18 18:36:41,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:36:41,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755253607] [2022-11-18 18:36:41,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:36:41,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:36:41,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:41,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:36:41,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:41,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 18:36:41,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:41,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 18:36:41,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:41,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 18:36:41,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:41,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-18 18:36:41,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:41,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 18:36:41,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:41,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 18:36:41,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:41,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-18 18:36:41,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:41,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 18:36:41,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:41,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-18 18:36:41,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:41,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-18 18:36:41,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:41,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-18 18:36:41,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:41,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-18 18:36:41,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:41,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-18 18:36:41,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:41,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-18 18:36:41,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:41,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-18 18:36:41,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:41,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-18 18:36:41,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:41,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-11-18 18:36:41,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:41,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-11-18 18:36:41,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:41,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:36:41,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:41,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-11-18 18:36:41,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:41,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-11-18 18:36:41,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:41,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-11-18 18:36:41,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:41,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-11-18 18:36:41,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:41,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:36:41,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:41,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2022-11-18 18:36:41,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:41,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:36:41,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:41,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-11-18 18:36:41,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:41,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-11-18 18:36:41,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:41,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-11-18 18:36:41,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:42,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:36:42,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:42,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:36:42,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:42,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 18:36:42,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:42,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-18 18:36:42,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:42,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-11-18 18:36:42,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:42,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-18 18:36:42,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:42,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-11-18 18:36:42,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:42,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:36:42,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:42,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2022-11-18 18:36:42,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:42,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2022-11-18 18:36:42,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:42,070 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2022-11-18 18:36:42,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:36:42,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755253607] [2022-11-18 18:36:42,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755253607] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:36:42,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [834194488] [2022-11-18 18:36:42,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:36:42,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:36:42,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:36:42,072 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:36:42,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-18 18:36:43,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:43,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 3678 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-18 18:36:43,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:36:43,999 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 369 trivial. 0 not checked. [2022-11-18 18:36:44,000 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:36:44,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [834194488] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:36:44,000 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 18:36:44,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2022-11-18 18:36:44,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335590884] [2022-11-18 18:36:44,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:36:44,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 18:36:44,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:36:44,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 18:36:44,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2022-11-18 18:36:44,002 INFO L87 Difference]: Start difference. First operand 15316 states and 20422 transitions. Second operand has 7 states, 7 states have (on average 25.0) internal successors, (175), 7 states have internal predecessors, (175), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-11-18 18:36:47,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:36:47,600 INFO L93 Difference]: Finished difference Result 31642 states and 42352 transitions. [2022-11-18 18:36:47,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 18:36:47,601 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.0) internal successors, (175), 7 states have internal predecessors, (175), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 324 [2022-11-18 18:36:47,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:36:47,663 INFO L225 Difference]: With dead ends: 31642 [2022-11-18 18:36:47,663 INFO L226 Difference]: Without dead ends: 16390 [2022-11-18 18:36:47,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 412 GetRequests, 396 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2022-11-18 18:36:47,697 INFO L413 NwaCegarLoop]: 2159 mSDtfsCounter, 615 mSDsluCounter, 9962 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 236 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 638 SdHoareTripleChecker+Valid, 12121 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 236 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:36:47,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [638 Valid, 12121 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [236 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-18 18:36:47,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16390 states. [2022-11-18 18:36:49,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16390 to 15562. [2022-11-18 18:36:49,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15562 states, 11352 states have (on average 1.2877906976744187) internal successors, (14619), 11582 states have internal predecessors, (14619), 3004 states have call successors, (3004), 1179 states have call predecessors, (3004), 1205 states have return successors, (3153), 2977 states have call predecessors, (3153), 3003 states have call successors, (3153) [2022-11-18 18:36:49,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15562 states to 15562 states and 20776 transitions. [2022-11-18 18:36:49,663 INFO L78 Accepts]: Start accepts. Automaton has 15562 states and 20776 transitions. Word has length 324 [2022-11-18 18:36:49,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:36:49,664 INFO L495 AbstractCegarLoop]: Abstraction has 15562 states and 20776 transitions. [2022-11-18 18:36:49,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.0) internal successors, (175), 7 states have internal predecessors, (175), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-11-18 18:36:49,664 INFO L276 IsEmpty]: Start isEmpty. Operand 15562 states and 20776 transitions. [2022-11-18 18:36:49,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2022-11-18 18:36:49,683 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:36:49,684 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:36:49,704 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-18 18:36:49,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-18 18:36:49,898 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:36:49,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:36:49,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1590357433, now seen corresponding path program 1 times [2022-11-18 18:36:49,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:36:49,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150963733] [2022-11-18 18:36:49,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:36:49,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:36:50,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:52,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:36:52,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:52,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 18:36:52,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:52,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 18:36:52,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:52,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 18:36:52,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:52,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-18 18:36:52,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:52,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 18:36:52,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:52,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 18:36:52,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:52,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-18 18:36:52,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:52,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 18:36:52,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:52,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-18 18:36:52,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:52,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-18 18:36:52,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:52,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-18 18:36:52,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:52,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-18 18:36:52,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:52,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-18 18:36:52,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:52,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-18 18:36:52,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:52,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:36:52,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:52,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-18 18:36:52,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:52,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:36:52,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:52,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-18 18:36:52,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:52,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-18 18:36:52,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:52,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-11-18 18:36:52,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:52,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-11-18 18:36:52,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:52,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-11-18 18:36:52,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:52,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-11-18 18:36:52,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:52,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:36:52,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:52,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-11-18 18:36:52,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:52,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-11-18 18:36:52,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:52,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-11-18 18:36:52,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:52,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-11-18 18:36:52,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:52,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2022-11-18 18:36:52,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:52,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-11-18 18:36:52,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:52,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-11-18 18:36:52,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:52,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2022-11-18 18:36:52,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:52,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:36:52,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:52,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-11-18 18:36:52,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:52,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:36:52,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:52,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2022-11-18 18:36:52,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:52,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:36:52,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:52,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-11-18 18:36:52,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:52,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-11-18 18:36:52,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:52,359 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked. [2022-11-18 18:36:52,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:36:52,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150963733] [2022-11-18 18:36:52,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150963733] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:36:52,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:36:52,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-18 18:36:52,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594653962] [2022-11-18 18:36:52,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:36:52,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 18:36:52,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:36:52,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 18:36:52,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-11-18 18:36:52,363 INFO L87 Difference]: Start difference. First operand 15562 states and 20776 transitions. Second operand has 11 states, 11 states have (on average 14.636363636363637) internal successors, (161), 6 states have internal predecessors, (161), 2 states have call successors, (41), 6 states have call predecessors, (41), 2 states have return successors, (38), 3 states have call predecessors, (38), 2 states have call successors, (38) [2022-11-18 18:37:08,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:37:08,200 INFO L93 Difference]: Finished difference Result 40909 states and 56959 transitions. [2022-11-18 18:37:08,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-18 18:37:08,200 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 14.636363636363637) internal successors, (161), 6 states have internal predecessors, (161), 2 states have call successors, (41), 6 states have call predecessors, (41), 2 states have return successors, (38), 3 states have call predecessors, (38), 2 states have call successors, (38) Word has length 338 [2022-11-18 18:37:08,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:37:08,281 INFO L225 Difference]: With dead ends: 40909 [2022-11-18 18:37:08,281 INFO L226 Difference]: Without dead ends: 25411 [2022-11-18 18:37:08,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2022-11-18 18:37:08,323 INFO L413 NwaCegarLoop]: 1734 mSDtfsCounter, 3992 mSDsluCounter, 8725 mSDsCounter, 0 mSdLazyCounter, 10252 mSolverCounterSat, 3282 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4277 SdHoareTripleChecker+Valid, 10459 SdHoareTripleChecker+Invalid, 13534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3282 IncrementalHoareTripleChecker+Valid, 10252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2022-11-18 18:37:08,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4277 Valid, 10459 Invalid, 13534 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3282 Valid, 10252 Invalid, 0 Unknown, 0 Unchecked, 12.2s Time] [2022-11-18 18:37:08,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25411 states. [2022-11-18 18:37:10,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25411 to 15582. [2022-11-18 18:37:10,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15582 states, 11372 states have (on average 1.2872845585648962) internal successors, (14639), 11598 states have internal predecessors, (14639), 3004 states have call successors, (3004), 1179 states have call predecessors, (3004), 1205 states have return successors, (3153), 2981 states have call predecessors, (3153), 3003 states have call successors, (3153) [2022-11-18 18:37:10,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15582 states to 15582 states and 20796 transitions. [2022-11-18 18:37:10,212 INFO L78 Accepts]: Start accepts. Automaton has 15582 states and 20796 transitions. Word has length 338 [2022-11-18 18:37:10,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:37:10,213 INFO L495 AbstractCegarLoop]: Abstraction has 15582 states and 20796 transitions. [2022-11-18 18:37:10,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 14.636363636363637) internal successors, (161), 6 states have internal predecessors, (161), 2 states have call successors, (41), 6 states have call predecessors, (41), 2 states have return successors, (38), 3 states have call predecessors, (38), 2 states have call successors, (38) [2022-11-18 18:37:10,213 INFO L276 IsEmpty]: Start isEmpty. Operand 15582 states and 20796 transitions. [2022-11-18 18:37:10,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2022-11-18 18:37:10,229 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:37:10,229 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:37:10,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-18 18:37:10,230 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:37:10,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:37:10,230 INFO L85 PathProgramCache]: Analyzing trace with hash 798407210, now seen corresponding path program 1 times [2022-11-18 18:37:10,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:37:10,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595739056] [2022-11-18 18:37:10,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:37:10,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:37:10,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:11,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:37:11,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:11,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 18:37:11,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:11,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 18:37:11,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:11,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 18:37:11,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:11,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-18 18:37:11,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:11,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 18:37:11,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:11,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 18:37:11,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:11,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-18 18:37:11,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:11,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 18:37:11,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:11,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-18 18:37:11,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:11,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-18 18:37:11,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:11,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-18 18:37:11,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:11,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-18 18:37:11,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:11,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-18 18:37:11,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:12,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-18 18:37:12,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:12,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:37:12,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:12,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-18 18:37:12,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:12,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:37:12,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:12,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-18 18:37:12,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:12,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-18 18:37:12,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:12,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-11-18 18:37:12,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:12,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-11-18 18:37:12,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:12,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:37:12,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:12,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-18 18:37:12,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:12,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:37:12,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:12,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-18 18:37:12,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:12,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-11-18 18:37:12,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:12,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-11-18 18:37:12,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:12,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:37:12,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:12,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-11-18 18:37:12,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:12,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-11-18 18:37:12,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:12,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-11-18 18:37:12,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:12,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-11-18 18:37:12,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:12,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2022-11-18 18:37:12,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:12,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-11-18 18:37:12,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:12,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-11-18 18:37:12,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:12,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2022-11-18 18:37:12,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:12,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:37:12,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:12,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-11-18 18:37:12,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:12,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:37:12,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:12,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2022-11-18 18:37:12,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:12,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:37:12,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:12,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2022-11-18 18:37:12,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:12,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2022-11-18 18:37:12,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:12,249 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 451 trivial. 0 not checked. [2022-11-18 18:37:12,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:37:12,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595739056] [2022-11-18 18:37:12,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595739056] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:37:12,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1609698142] [2022-11-18 18:37:12,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:37:12,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:37:12,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:37:12,252 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:37:12,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-18 18:37:13,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:13,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 3592 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 18:37:13,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:37:14,012 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 164 proven. 10 refuted. 0 times theorem prover too weak. 341 trivial. 0 not checked. [2022-11-18 18:37:14,012 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:37:14,498 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 451 trivial. 0 not checked. [2022-11-18 18:37:14,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1609698142] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:37:14,498 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:37:14,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 8] total 23 [2022-11-18 18:37:14,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011855996] [2022-11-18 18:37:14,500 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:37:14,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-18 18:37:14,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:37:14,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-18 18:37:14,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=396, Unknown=0, NotChecked=0, Total=506 [2022-11-18 18:37:14,504 INFO L87 Difference]: Start difference. First operand 15582 states and 20796 transitions. Second operand has 23 states, 23 states have (on average 9.91304347826087) internal successors, (228), 19 states have internal predecessors, (228), 2 states have call successors, (89), 6 states have call predecessors, (89), 5 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) [2022-11-18 18:37:33,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:37:33,842 INFO L93 Difference]: Finished difference Result 33988 states and 45973 transitions. [2022-11-18 18:37:33,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-18 18:37:33,843 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 9.91304347826087) internal successors, (228), 19 states have internal predecessors, (228), 2 states have call successors, (89), 6 states have call predecessors, (89), 5 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) Word has length 358 [2022-11-18 18:37:33,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:37:33,889 INFO L225 Difference]: With dead ends: 33988 [2022-11-18 18:37:33,889 INFO L226 Difference]: Without dead ends: 18397 [2022-11-18 18:37:33,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 838 GetRequests, 791 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 320 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=506, Invalid=1750, Unknown=0, NotChecked=0, Total=2256 [2022-11-18 18:37:33,927 INFO L413 NwaCegarLoop]: 1277 mSDtfsCounter, 2525 mSDsluCounter, 12989 mSDsCounter, 0 mSdLazyCounter, 14178 mSolverCounterSat, 2039 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2654 SdHoareTripleChecker+Valid, 14266 SdHoareTripleChecker+Invalid, 16217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2039 IncrementalHoareTripleChecker+Valid, 14178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.4s IncrementalHoareTripleChecker+Time [2022-11-18 18:37:33,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2654 Valid, 14266 Invalid, 16217 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2039 Valid, 14178 Invalid, 0 Unknown, 0 Unchecked, 15.4s Time] [2022-11-18 18:37:33,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18397 states. [2022-11-18 18:37:35,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18397 to 15610. [2022-11-18 18:37:35,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15610 states, 11400 states have (on average 1.286578947368421) internal successors, (14667), 11626 states have internal predecessors, (14667), 3004 states have call successors, (3004), 1179 states have call predecessors, (3004), 1205 states have return successors, (3153), 2981 states have call predecessors, (3153), 3003 states have call successors, (3153) [2022-11-18 18:37:35,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15610 states to 15610 states and 20824 transitions. [2022-11-18 18:37:35,743 INFO L78 Accepts]: Start accepts. Automaton has 15610 states and 20824 transitions. Word has length 358 [2022-11-18 18:37:35,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:37:35,743 INFO L495 AbstractCegarLoop]: Abstraction has 15610 states and 20824 transitions. [2022-11-18 18:37:35,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 9.91304347826087) internal successors, (228), 19 states have internal predecessors, (228), 2 states have call successors, (89), 6 states have call predecessors, (89), 5 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) [2022-11-18 18:37:35,743 INFO L276 IsEmpty]: Start isEmpty. Operand 15610 states and 20824 transitions. [2022-11-18 18:37:35,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2022-11-18 18:37:35,753 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:37:35,753 INFO L195 NwaCegarLoop]: trace histogram [20, 12, 12, 12, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:37:35,765 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-18 18:37:35,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:37:35,959 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:37:35,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:37:35,960 INFO L85 PathProgramCache]: Analyzing trace with hash 979214762, now seen corresponding path program 2 times [2022-11-18 18:37:35,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:37:35,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683903478] [2022-11-18 18:37:35,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:37:35,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:37:36,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:39,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:37:39,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:39,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 18:37:39,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:39,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 18:37:39,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:39,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 18:37:39,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:39,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-18 18:37:39,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:39,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 18:37:39,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:39,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 18:37:39,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:39,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-18 18:37:39,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:39,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 18:37:39,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:39,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-18 18:37:39,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:39,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-18 18:37:39,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:39,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-18 18:37:39,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:39,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-18 18:37:39,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:39,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-11-18 18:37:39,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:39,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-18 18:37:39,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:39,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:37:39,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:39,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-18 18:37:39,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:39,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:37:39,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:39,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-18 18:37:39,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:39,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-18 18:37:39,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:39,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-11-18 18:37:39,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:39,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-18 18:37:39,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:39,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:37:39,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:39,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-18 18:37:39,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:39,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:37:39,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:39,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-18 18:37:39,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:39,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-11-18 18:37:39,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:39,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-11-18 18:37:39,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:39,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:37:39,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:39,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-11-18 18:37:39,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:39,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-11-18 18:37:39,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:39,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-11-18 18:37:39,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:39,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-11-18 18:37:39,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:39,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2022-11-18 18:37:39,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:39,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-11-18 18:37:39,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:39,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2022-11-18 18:37:39,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:39,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2022-11-18 18:37:39,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:39,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:37:39,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:39,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-11-18 18:37:39,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:39,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:37:39,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:39,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2022-11-18 18:37:39,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:39,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:37:39,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:39,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2022-11-18 18:37:39,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:39,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-11-18 18:37:39,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:39,410 INFO L134 CoverageAnalysis]: Checked inductivity of 663 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2022-11-18 18:37:39,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:37:39,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683903478] [2022-11-18 18:37:39,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683903478] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:37:39,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:37:39,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-18 18:37:39,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597676402] [2022-11-18 18:37:39,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:37:39,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 18:37:39,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:37:39,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 18:37:39,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2022-11-18 18:37:39,412 INFO L87 Difference]: Start difference. First operand 15610 states and 20824 transitions. Second operand has 13 states, 13 states have (on average 12.461538461538462) internal successors, (162), 8 states have internal predecessors, (162), 3 states have call successors, (44), 6 states have call predecessors, (44), 2 states have return successors, (41), 4 states have call predecessors, (41), 3 states have call successors, (41) [2022-11-18 18:37:56,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:37:56,319 INFO L93 Difference]: Finished difference Result 41437 states and 57745 transitions. [2022-11-18 18:37:56,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-18 18:37:56,320 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 12.461538461538462) internal successors, (162), 8 states have internal predecessors, (162), 3 states have call successors, (44), 6 states have call predecessors, (44), 2 states have return successors, (41), 4 states have call predecessors, (41), 3 states have call successors, (41) Word has length 366 [2022-11-18 18:37:56,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:37:56,397 INFO L225 Difference]: With dead ends: 41437 [2022-11-18 18:37:56,397 INFO L226 Difference]: Without dead ends: 25895 [2022-11-18 18:37:56,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=416, Unknown=0, NotChecked=0, Total=506 [2022-11-18 18:37:56,431 INFO L413 NwaCegarLoop]: 1753 mSDtfsCounter, 5209 mSDsluCounter, 10114 mSDsCounter, 0 mSdLazyCounter, 11778 mSolverCounterSat, 3306 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5494 SdHoareTripleChecker+Valid, 11867 SdHoareTripleChecker+Invalid, 15084 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3306 IncrementalHoareTripleChecker+Valid, 11778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2022-11-18 18:37:56,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5494 Valid, 11867 Invalid, 15084 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3306 Valid, 11778 Invalid, 0 Unknown, 0 Unchecked, 12.8s Time] [2022-11-18 18:37:56,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25895 states. [2022-11-18 18:37:58,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25895 to 15610. [2022-11-18 18:37:58,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15610 states, 11400 states have (on average 1.286578947368421) internal successors, (14667), 11626 states have internal predecessors, (14667), 3004 states have call successors, (3004), 1179 states have call predecessors, (3004), 1205 states have return successors, (3153), 2981 states have call predecessors, (3153), 3003 states have call successors, (3153) [2022-11-18 18:37:58,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15610 states to 15610 states and 20824 transitions. [2022-11-18 18:37:58,468 INFO L78 Accepts]: Start accepts. Automaton has 15610 states and 20824 transitions. Word has length 366 [2022-11-18 18:37:58,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:37:58,469 INFO L495 AbstractCegarLoop]: Abstraction has 15610 states and 20824 transitions. [2022-11-18 18:37:58,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.461538461538462) internal successors, (162), 8 states have internal predecessors, (162), 3 states have call successors, (44), 6 states have call predecessors, (44), 2 states have return successors, (41), 4 states have call predecessors, (41), 3 states have call successors, (41) [2022-11-18 18:37:58,469 INFO L276 IsEmpty]: Start isEmpty. Operand 15610 states and 20824 transitions. [2022-11-18 18:37:58,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2022-11-18 18:37:58,479 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:37:58,480 INFO L195 NwaCegarLoop]: trace histogram [20, 12, 12, 12, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:37:58,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-18 18:37:58,480 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:37:58,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:37:58,481 INFO L85 PathProgramCache]: Analyzing trace with hash -276410279, now seen corresponding path program 1 times [2022-11-18 18:37:58,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:37:58,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55837332] [2022-11-18 18:37:58,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:37:58,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:37:58,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:00,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:38:00,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:00,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 18:38:00,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:00,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 18:38:00,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:00,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 18:38:00,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:00,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-18 18:38:00,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:00,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 18:38:00,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:00,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 18:38:00,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:00,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-18 18:38:00,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:00,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 18:38:00,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:00,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-18 18:38:00,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:00,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-18 18:38:00,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:00,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-18 18:38:00,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:00,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-18 18:38:00,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:00,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-11-18 18:38:00,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:00,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-18 18:38:00,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:00,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:38:00,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:00,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-18 18:38:00,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:00,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:38:00,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:00,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-18 18:38:00,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:00,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-18 18:38:00,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:00,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-11-18 18:38:00,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:00,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-18 18:38:00,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:00,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-11-18 18:38:00,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:00,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-11-18 18:38:00,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:00,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-11-18 18:38:00,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:01,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:38:01,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:01,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2022-11-18 18:38:01,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:01,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-11-18 18:38:01,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:01,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-11-18 18:38:01,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:01,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2022-11-18 18:38:01,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:01,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-11-18 18:38:01,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:01,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-11-18 18:38:01,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:01,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-11-18 18:38:01,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:01,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2022-11-18 18:38:01,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:01,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:38:01,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:01,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-11-18 18:38:01,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:01,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:38:01,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:01,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2022-11-18 18:38:01,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:01,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:38:01,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:01,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2022-11-18 18:38:01,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:01,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2022-11-18 18:38:01,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:01,174 INFO L134 CoverageAnalysis]: Checked inductivity of 617 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 599 trivial. 0 not checked. [2022-11-18 18:38:01,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:38:01,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55837332] [2022-11-18 18:38:01,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55837332] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:38:01,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1887145573] [2022-11-18 18:38:01,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:38:01,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:38:01,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:38:01,178 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:38:01,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-18 18:38:04,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:04,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 3572 conjuncts, 46 conjunts are in the unsatisfiable core [2022-11-18 18:38:04,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:38:05,193 INFO L134 CoverageAnalysis]: Checked inductivity of 617 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 541 trivial. 0 not checked. [2022-11-18 18:38:05,194 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:38:05,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1887145573] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:38:05,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 18:38:05,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [17] total 21 [2022-11-18 18:38:05,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275959177] [2022-11-18 18:38:05,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:38:05,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 18:38:05,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:38:05,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 18:38:05,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=376, Unknown=0, NotChecked=0, Total=420 [2022-11-18 18:38:05,196 INFO L87 Difference]: Start difference. First operand 15610 states and 20824 transitions. Second operand has 13 states, 11 states have (on average 16.0) internal successors, (176), 10 states have internal predecessors, (176), 5 states have call successors, (43), 2 states have call predecessors, (43), 5 states have return successors, (40), 6 states have call predecessors, (40), 5 states have call successors, (40) [2022-11-18 18:38:09,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:38:09,113 INFO L93 Difference]: Finished difference Result 35100 states and 47728 transitions. [2022-11-18 18:38:09,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-18 18:38:09,114 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 16.0) internal successors, (176), 10 states have internal predecessors, (176), 5 states have call successors, (43), 2 states have call predecessors, (43), 5 states have return successors, (40), 6 states have call predecessors, (40), 5 states have call successors, (40) Word has length 352 [2022-11-18 18:38:09,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:38:09,168 INFO L225 Difference]: With dead ends: 35100 [2022-11-18 18:38:09,169 INFO L226 Difference]: Without dead ends: 19558 [2022-11-18 18:38:09,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 451 GetRequests, 421 SyntacticMatches, 4 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=85, Invalid=671, Unknown=0, NotChecked=0, Total=756 [2022-11-18 18:38:09,200 INFO L413 NwaCegarLoop]: 2413 mSDtfsCounter, 1059 mSDsluCounter, 25933 mSDsCounter, 0 mSdLazyCounter, 898 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1203 SdHoareTripleChecker+Valid, 28346 SdHoareTripleChecker+Invalid, 965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 898 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-18 18:38:09,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1203 Valid, 28346 Invalid, 965 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [67 Valid, 898 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-18 18:38:09,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19558 states. [2022-11-18 18:38:11,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19558 to 15610. [2022-11-18 18:38:11,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15610 states, 11400 states have (on average 1.286578947368421) internal successors, (14667), 11626 states have internal predecessors, (14667), 3004 states have call successors, (3004), 1179 states have call predecessors, (3004), 1205 states have return successors, (3153), 2981 states have call predecessors, (3153), 3003 states have call successors, (3153) [2022-11-18 18:38:11,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15610 states to 15610 states and 20824 transitions. [2022-11-18 18:38:11,113 INFO L78 Accepts]: Start accepts. Automaton has 15610 states and 20824 transitions. Word has length 352 [2022-11-18 18:38:11,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:38:11,114 INFO L495 AbstractCegarLoop]: Abstraction has 15610 states and 20824 transitions. [2022-11-18 18:38:11,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 16.0) internal successors, (176), 10 states have internal predecessors, (176), 5 states have call successors, (43), 2 states have call predecessors, (43), 5 states have return successors, (40), 6 states have call predecessors, (40), 5 states have call successors, (40) [2022-11-18 18:38:11,114 INFO L276 IsEmpty]: Start isEmpty. Operand 15610 states and 20824 transitions. [2022-11-18 18:38:11,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2022-11-18 18:38:11,125 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:38:11,125 INFO L195 NwaCegarLoop]: trace histogram [20, 12, 12, 12, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:38:11,145 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-18 18:38:11,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:38:11,326 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:38:11,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:38:11,327 INFO L85 PathProgramCache]: Analyzing trace with hash 991969860, now seen corresponding path program 1 times [2022-11-18 18:38:11,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:38:11,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855103105] [2022-11-18 18:38:11,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:38:11,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:38:13,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:38:13,881 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 18:38:14,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:38:15,505 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 18:38:15,506 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 18:38:15,508 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-18 18:38:15,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-18 18:38:15,515 INFO L444 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:38:15,520 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 18:38:15,589 WARN L421 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2022-11-18 18:38:15,596 WARN L421 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2022-11-18 18:38:15,598 WARN L421 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2022-11-18 18:38:16,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 06:38:16 BoogieIcfgContainer [2022-11-18 18:38:16,005 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 18:38:16,005 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 18:38:16,005 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 18:38:16,006 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 18:38:16,006 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:33:22" (3/4) ... [2022-11-18 18:38:16,010 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-18 18:38:16,010 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 18:38:16,010 INFO L158 Benchmark]: Toolchain (without parser) took 303938.83ms. Allocated memory was 119.5MB in the beginning and 3.1GB in the end (delta: 3.0GB). Free memory was 89.5MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 1.8GB. Max. memory is 16.1GB. [2022-11-18 18:38:16,011 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 119.5MB. Free memory is still 96.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 18:38:16,015 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3528.80ms. Allocated memory was 119.5MB in the beginning and 260.0MB in the end (delta: 140.5MB). Free memory was 89.5MB in the beginning and 175.6MB in the end (delta: -86.1MB). Peak memory consumption was 97.2MB. Max. memory is 16.1GB. [2022-11-18 18:38:16,015 INFO L158 Benchmark]: Boogie Procedure Inliner took 326.86ms. Allocated memory is still 260.0MB. Free memory was 175.6MB in the beginning and 148.3MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-18 18:38:16,016 INFO L158 Benchmark]: Boogie Preprocessor took 322.45ms. Allocated memory is still 260.0MB. Free memory was 148.3MB in the beginning and 118.7MB in the end (delta: 29.6MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-11-18 18:38:16,016 INFO L158 Benchmark]: RCFGBuilder took 6241.42ms. Allocated memory was 260.0MB in the beginning and 589.3MB in the end (delta: 329.3MB). Free memory was 118.7MB in the beginning and 217.9MB in the end (delta: -99.2MB). Peak memory consumption was 233.9MB. Max. memory is 16.1GB. [2022-11-18 18:38:16,019 INFO L158 Benchmark]: TraceAbstraction took 293504.33ms. Allocated memory was 589.3MB in the beginning and 3.1GB in the end (delta: 2.5GB). Free memory was 216.9MB in the beginning and 1.2GB in the end (delta: -982.8MB). Peak memory consumption was 1.5GB. Max. memory is 16.1GB. [2022-11-18 18:38:16,019 INFO L158 Benchmark]: Witness Printer took 4.57ms. Allocated memory is still 3.1GB. Free memory is still 1.2GB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 18:38:16,023 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 119.5MB. Free memory is still 96.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3528.80ms. Allocated memory was 119.5MB in the beginning and 260.0MB in the end (delta: 140.5MB). Free memory was 89.5MB in the beginning and 175.6MB in the end (delta: -86.1MB). Peak memory consumption was 97.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 326.86ms. Allocated memory is still 260.0MB. Free memory was 175.6MB in the beginning and 148.3MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 322.45ms. Allocated memory is still 260.0MB. Free memory was 148.3MB in the beginning and 118.7MB in the end (delta: 29.6MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * RCFGBuilder took 6241.42ms. Allocated memory was 260.0MB in the beginning and 589.3MB in the end (delta: 329.3MB). Free memory was 118.7MB in the beginning and 217.9MB in the end (delta: -99.2MB). Peak memory consumption was 233.9MB. Max. memory is 16.1GB. * TraceAbstraction took 293504.33ms. Allocated memory was 589.3MB in the beginning and 3.1GB in the end (delta: 2.5GB). Free memory was 216.9MB in the beginning and 1.2GB in the end (delta: -982.8MB). Peak memory consumption was 1.5GB. Max. memory is 16.1GB. * Witness Printer took 4.57ms. Allocated memory is still 3.1GB. Free memory is still 1.2GB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 6519]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of large string literal at line 10308, overapproximation of bitwiseOr at line 9124, overapproximation of shiftRight at line 6103, overapproximation of bitwiseAnd at line 11229. Possible FailurePath: [L10421-L10425] static struct xenbus_driver netfront_driver = {(struct xenbus_device_id const *)(& netfront_ids), & netfront_probe, & netback_changed, & xennet_remove, 0, & netfront_resume, 0, {(char const *)(& netfront_ids), 0, & __this_module, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, 0, 0}; [L6552] struct timer_list *ldv_timer_list_1 ; [L6543] struct net_device *xennet_ethtool_ops_group0 ; [L6550] struct xenbus_device *netfront_driver_group0 ; [L6553] int ldv_state_variable_4 ; [L6542] int LDV_IN_INTERRUPT = 1; [L6548] int ref_cnt ; [L9063-L9069] static struct net_device_ops const xennet_netdev_ops = {0, & xennet_uninit, & xennet_open, & xennet_close, (netdev_tx_t (*)(struct sk_buff * , struct net_device * ))(& xennet_start_xmit), & xennet_select_queue, 0, 0, & eth_mac_addr, & eth_validate_addr, 0, 0, & xennet_change_mtu, 0, 0, & xennet_get_stats64, 0, 0, 0, & xennet_poll_controller, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, & xennet_fix_features, & xennet_set_features, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; [L6546] int ldv_timer_state_1 = 0; [L11225] int ldv_spin = 0; [L10071-L10074] static struct ethtool_ops const xennet_ethtool_ops = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, & ethtool_op_get_link, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, & xennet_get_strings, 0, & xennet_get_ethtool_stats, 0, 0, 0, 0, & xennet_get_sset_count, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; [L10368-L10369] static struct xenbus_device_id const netfront_ids[2U] = { {{'v', 'i', 'f', '\000'}}, {{'\000'}}}; [L10461] u16 (*ldvarg6)(struct net_device * , struct sk_buff * ) ; [L10462] int ldv_retval_0 ; [L10465] int ldv_retval_1 ; [L7304] static unsigned int xennet_max_queues ; [L10460] int ldv_retval_2 ; [L10467] int ldv_retval_3 ; [L6551] struct net_device *xennet_netdev_ops_group1 ; [L10308-L10317] static struct device_attribute xennet_attrs[3U] = { {{"rxbuf_min", 420U, (_Bool)0, 0, {{{(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}}}}, & show_rxbuf_min, & store_rxbuf_min}, {{"rxbuf_max", 420U, (_Bool)0, 0, {{{(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}}}}, & show_rxbuf_max, & store_rxbuf_max}, {{"rxbuf_cur", 292U, (_Bool)0, 0, {{{(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}}}}, & show_rxbuf_cur, (ssize_t (*)(struct device * , struct device_attribute * , char const * , size_t ))0}}; [L10463] int ldv_retval_4 ; [L6547] int ldv_state_variable_2 ; [L6545] int ldv_state_variable_3 ; [L6544] int ldv_state_variable_0 ; [L6549] int ldv_state_variable_1 ; [L10003-L10004] static struct xennet_stat const xennet_stats[1U] = { {{'r', 'x', '_', 'g', 's', 'o', '_', 'c', 'h', 'e', 'c', 'k', 's', 'u', 'm', '_', 'f', 'i', 'x', 'u', 'p', '\000'}, 48U}}; VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, ref_cnt=0, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L10545] void *ldvarg7 ; [L10546] void *tmp ; [L10547] struct sk_buff *ldvarg3 ; [L10548] void *tmp___0 ; [L10549] struct rtnl_link_stats64 *ldvarg0 ; [L10550] void *tmp___1 ; [L10551] netdev_features_t ldvarg5 ; [L10552] void *ldvarg1 ; [L10553] void *tmp___2 ; [L10554] struct sk_buff *ldvarg8 ; [L10555] void *tmp___3 ; [L10556] int ldvarg4 ; [L10557] int tmp___4 ; [L10558] netdev_features_t ldvarg2 ; [L10559] u64 *ldvarg11 ; [L10560] void *tmp___5 ; [L10561] int ldvarg13 ; [L10562] int tmp___6 ; [L10563] u32 ldvarg10 ; [L10564] u32 tmp___7 ; [L10565] struct ethtool_stats *ldvarg12 ; [L10566] void *tmp___8 ; [L10567] u8 *ldvarg9 ; [L10568] void *tmp___9 ; [L10569] enum xenbus_state ldvarg14 ; [L10570] struct xenbus_device_id *ldvarg15 ; [L10571] void *tmp___10 ; [L10572] int tmp___11 ; [L10573] int tmp___12 ; [L10574] int tmp___13 ; [L10575] int tmp___14 ; [L10576] int tmp___15 ; VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg14={18446744073709547522:0}, ldvarg2={18446744073709547523:0}, ldvarg5={18446744073709547524:0}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, ref_cnt=0, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L10578] CALL, EXPR ldv_zalloc(1UL) VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, ref_cnt=0, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L6483] void *p ; [L6484] void *tmp ; [L6485] int tmp___0 ; [L6487] tmp___0 = __VERIFIER_nondet_int() [L6488] COND TRUE tmp___0 != 0 [L6489] return ((void *)0); VAL [={0:0}, \old(size)=1, \result={0:0}, __this_module={18446744073709547560:18446744073709547550}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, ref_cnt=0, size=1, tmp___0=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L10578] RET, EXPR ldv_zalloc(1UL) VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldv_zalloc(1UL)={0:0}, ldvarg14={18446744073709547522:0}, ldvarg2={18446744073709547523:0}, ldvarg5={18446744073709547524:0}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, ref_cnt=0, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L10578] tmp = ldv_zalloc(1UL) [L10579] ldvarg7 = tmp VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg14={18446744073709547522:0}, ldvarg2={18446744073709547523:0}, ldvarg5={18446744073709547524:0}, ldvarg7={0:0}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, ref_cnt=0, tmp={0:0}, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L10580] CALL, EXPR ldv_zalloc(232UL) VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, ref_cnt=0, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L6483] void *p ; [L6484] void *tmp ; [L6485] int tmp___0 ; [L6487] tmp___0 = __VERIFIER_nondet_int() [L6488] COND TRUE tmp___0 != 0 [L6489] return ((void *)0); VAL [={0:0}, \old(size)=232, \result={0:0}, __this_module={18446744073709547560:18446744073709547550}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, ref_cnt=0, size=232, tmp___0=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L10580] RET, EXPR ldv_zalloc(232UL) VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldv_zalloc(232UL)={0:0}, ldvarg14={18446744073709547522:0}, ldvarg2={18446744073709547523:0}, ldvarg5={18446744073709547524:0}, ldvarg7={0:0}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, ref_cnt=0, tmp={0:0}, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L10580] tmp___0 = ldv_zalloc(232UL) [L10581] ldvarg3 = (struct sk_buff *)tmp___0 VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg14={18446744073709547522:0}, ldvarg2={18446744073709547523:0}, ldvarg3={0:0}, ldvarg5={18446744073709547524:0}, ldvarg7={0:0}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, ref_cnt=0, tmp={0:0}, tmp___0={0:0}, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L10582] CALL, EXPR ldv_zalloc(184UL) VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, ref_cnt=0, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L6483] void *p ; [L6484] void *tmp ; [L6485] int tmp___0 ; [L6487] tmp___0 = __VERIFIER_nondet_int() [L6488] COND TRUE tmp___0 != 0 [L6489] return ((void *)0); VAL [={0:0}, \old(size)=184, \result={0:0}, __this_module={18446744073709547560:18446744073709547550}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, ref_cnt=0, size=184, tmp___0=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L10582] RET, EXPR ldv_zalloc(184UL) VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldv_zalloc(184UL)={0:0}, ldvarg14={18446744073709547522:0}, ldvarg2={18446744073709547523:0}, ldvarg3={0:0}, ldvarg5={18446744073709547524:0}, ldvarg7={0:0}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, ref_cnt=0, tmp={0:0}, tmp___0={0:0}, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L10582] tmp___1 = ldv_zalloc(184UL) [L10583] ldvarg0 = (struct rtnl_link_stats64 *)tmp___1 VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={0:0}, ldvarg14={18446744073709547522:0}, ldvarg2={18446744073709547523:0}, ldvarg3={0:0}, ldvarg5={18446744073709547524:0}, ldvarg7={0:0}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, ref_cnt=0, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L10584] CALL, EXPR ldv_zalloc(1UL) VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, ref_cnt=0, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L6483] void *p ; [L6484] void *tmp ; [L6485] int tmp___0 ; [L6487] tmp___0 = __VERIFIER_nondet_int() [L6488] COND TRUE tmp___0 != 0 [L6489] return ((void *)0); VAL [={0:0}, \old(size)=1, \result={0:0}, __this_module={18446744073709547560:18446744073709547550}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, ref_cnt=0, size=1, tmp___0=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L10584] RET, EXPR ldv_zalloc(1UL) VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldv_zalloc(1UL)={0:0}, ldvarg0={0:0}, ldvarg14={18446744073709547522:0}, ldvarg2={18446744073709547523:0}, ldvarg3={0:0}, ldvarg5={18446744073709547524:0}, ldvarg7={0:0}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, ref_cnt=0, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L10584] tmp___2 = ldv_zalloc(1UL) [L10585] ldvarg1 = tmp___2 VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg14={18446744073709547522:0}, ldvarg2={18446744073709547523:0}, ldvarg3={0:0}, ldvarg5={18446744073709547524:0}, ldvarg7={0:0}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, ref_cnt=0, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L10586] CALL, EXPR ldv_zalloc(232UL) VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, ref_cnt=0, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L6483] void *p ; [L6484] void *tmp ; [L6485] int tmp___0 ; [L6487] tmp___0 = __VERIFIER_nondet_int() [L6488] COND TRUE tmp___0 != 0 [L6489] return ((void *)0); VAL [={0:0}, \old(size)=232, \result={0:0}, __this_module={18446744073709547560:18446744073709547550}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, ref_cnt=0, size=232, tmp___0=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L10586] RET, EXPR ldv_zalloc(232UL) VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldv_zalloc(232UL)={0:0}, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg14={18446744073709547522:0}, ldvarg2={18446744073709547523:0}, ldvarg3={0:0}, ldvarg5={18446744073709547524:0}, ldvarg7={0:0}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, ref_cnt=0, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L10586] tmp___3 = ldv_zalloc(232UL) [L10587] ldvarg8 = (struct sk_buff *)tmp___3 [L10588] tmp___4 = __VERIFIER_nondet_int() [L10589] ldvarg4 = tmp___4 VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg14={18446744073709547522:0}, ldvarg2={18446744073709547523:0}, ldvarg3={0:0}, ldvarg4=-2, ldvarg5={18446744073709547524:0}, ldvarg7={0:0}, ldvarg8={0:0}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, ref_cnt=0, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3={0:0}, tmp___4=-2, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L10590] CALL, EXPR ldv_zalloc(8UL) VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, ref_cnt=0, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L6483] void *p ; [L6484] void *tmp ; [L6485] int tmp___0 ; [L6487] tmp___0 = __VERIFIER_nondet_int() [L6488] COND TRUE tmp___0 != 0 [L6489] return ((void *)0); VAL [={0:0}, \old(size)=8, \result={0:0}, __this_module={18446744073709547560:18446744073709547550}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, ref_cnt=0, size=8, tmp___0=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L10590] RET, EXPR ldv_zalloc(8UL) VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldv_zalloc(8UL)={0:0}, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg14={18446744073709547522:0}, ldvarg2={18446744073709547523:0}, ldvarg3={0:0}, ldvarg4=-2, ldvarg5={18446744073709547524:0}, ldvarg7={0:0}, ldvarg8={0:0}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, ref_cnt=0, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3={0:0}, tmp___4=-2, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L10590] tmp___5 = ldv_zalloc(8UL) [L10591] ldvarg11 = (u64 *)tmp___5 [L10592] tmp___6 = __VERIFIER_nondet_int() [L10593] ldvarg13 = tmp___6 [L10594] tmp___7 = __VERIFIER_nondet_u32() [L10595] ldvarg10 = tmp___7 VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg10=4294963234, ldvarg11={0:0}, ldvarg13=0, ldvarg14={18446744073709547522:0}, ldvarg2={18446744073709547523:0}, ldvarg3={0:0}, ldvarg4=-2, ldvarg5={18446744073709547524:0}, ldvarg7={0:0}, ldvarg8={0:0}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, ref_cnt=0, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3={0:0}, tmp___4=-2, tmp___5={0:0}, tmp___6=0, tmp___7=4294963234, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L10596] CALL, EXPR ldv_zalloc(8UL) VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, ref_cnt=0, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L6483] void *p ; [L6484] void *tmp ; [L6485] int tmp___0 ; [L6487] tmp___0 = __VERIFIER_nondet_int() [L6488] COND TRUE tmp___0 != 0 [L6489] return ((void *)0); VAL [={0:0}, \old(size)=8, \result={0:0}, __this_module={18446744073709547560:18446744073709547550}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, ref_cnt=0, size=8, tmp___0=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L10596] RET, EXPR ldv_zalloc(8UL) VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldv_zalloc(8UL)={0:0}, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg10=4294963234, ldvarg11={0:0}, ldvarg13=0, ldvarg14={18446744073709547522:0}, ldvarg2={18446744073709547523:0}, ldvarg3={0:0}, ldvarg4=-2, ldvarg5={18446744073709547524:0}, ldvarg7={0:0}, ldvarg8={0:0}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, ref_cnt=0, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3={0:0}, tmp___4=-2, tmp___5={0:0}, tmp___6=0, tmp___7=4294963234, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L10596] tmp___8 = ldv_zalloc(8UL) [L10597] ldvarg12 = (struct ethtool_stats *)tmp___8 VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg10=4294963234, ldvarg11={0:0}, ldvarg12={0:0}, ldvarg13=0, ldvarg14={18446744073709547522:0}, ldvarg2={18446744073709547523:0}, ldvarg3={0:0}, ldvarg4=-2, ldvarg5={18446744073709547524:0}, ldvarg7={0:0}, ldvarg8={0:0}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, ref_cnt=0, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3={0:0}, tmp___4=-2, tmp___5={0:0}, tmp___6=0, tmp___7=4294963234, tmp___8={0:0}, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L10598] CALL, EXPR ldv_zalloc(1UL) VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, ref_cnt=0, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L6483] void *p ; [L6484] void *tmp ; [L6485] int tmp___0 ; [L6487] tmp___0 = __VERIFIER_nondet_int() [L6488] COND TRUE tmp___0 != 0 [L6489] return ((void *)0); VAL [={0:0}, \old(size)=1, \result={0:0}, __this_module={18446744073709547560:18446744073709547550}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, ref_cnt=0, size=1, tmp___0=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L10598] RET, EXPR ldv_zalloc(1UL) VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldv_zalloc(1UL)={0:0}, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg10=4294963234, ldvarg11={0:0}, ldvarg12={0:0}, ldvarg13=0, ldvarg14={18446744073709547522:0}, ldvarg2={18446744073709547523:0}, ldvarg3={0:0}, ldvarg4=-2, ldvarg5={18446744073709547524:0}, ldvarg7={0:0}, ldvarg8={0:0}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, ref_cnt=0, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3={0:0}, tmp___4=-2, tmp___5={0:0}, tmp___6=0, tmp___7=4294963234, tmp___8={0:0}, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L10598] tmp___9 = ldv_zalloc(1UL) [L10599] ldvarg9 = (u8 *)tmp___9 VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg10=4294963234, ldvarg11={0:0}, ldvarg12={0:0}, ldvarg13=0, ldvarg14={18446744073709547522:0}, ldvarg2={18446744073709547523:0}, ldvarg3={0:0}, ldvarg4=-2, ldvarg5={18446744073709547524:0}, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9={0:0}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, ref_cnt=0, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3={0:0}, tmp___4=-2, tmp___5={0:0}, tmp___6=0, tmp___7=4294963234, tmp___8={0:0}, tmp___9={0:0}, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L10600] CALL, EXPR ldv_zalloc(32UL) VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, ref_cnt=0, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L6483] void *p ; [L6484] void *tmp ; [L6485] int tmp___0 ; [L6487] tmp___0 = __VERIFIER_nondet_int() [L6488] COND TRUE tmp___0 != 0 [L6489] return ((void *)0); VAL [={0:0}, \old(size)=32, \result={0:0}, __this_module={18446744073709547560:18446744073709547550}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, ref_cnt=0, size=32, tmp___0=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L10600] RET, EXPR ldv_zalloc(32UL) VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldv_zalloc(32UL)={0:0}, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg10=4294963234, ldvarg11={0:0}, ldvarg12={0:0}, ldvarg13=0, ldvarg14={18446744073709547522:0}, ldvarg2={18446744073709547523:0}, ldvarg3={0:0}, ldvarg4=-2, ldvarg5={18446744073709547524:0}, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9={0:0}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, ref_cnt=0, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3={0:0}, tmp___4=-2, tmp___5={0:0}, tmp___6=0, tmp___7=4294963234, tmp___8={0:0}, tmp___9={0:0}, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L10600] tmp___10 = ldv_zalloc(32UL) [L10601] ldvarg15 = (struct xenbus_device_id *)tmp___10 [L10602] FCALL ldv_initialize() [L10603] FCALL memset((void *)(& ldvarg5), 0, 8UL) VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg10=4294963234, ldvarg11={0:0}, ldvarg12={0:0}, ldvarg13=0, ldvarg14={18446744073709547522:0}, ldvarg15={0:0}, ldvarg2={18446744073709547523:0}, ldvarg3={0:0}, ldvarg4=-2, ldvarg5={18446744073709547524:0}, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9={0:0}, memset((void *)(& ldvarg5), 0, 8UL)={18446744073709547524:0}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, ref_cnt=0, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___10={0:0}, tmp___2={0:0}, tmp___3={0:0}, tmp___4=-2, tmp___5={0:0}, tmp___6=0, tmp___7=4294963234, tmp___8={0:0}, tmp___9={0:0}, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L10604] FCALL memset((void *)(& ldvarg2), 0, 8UL) VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg10=4294963234, ldvarg11={0:0}, ldvarg12={0:0}, ldvarg13=0, ldvarg14={18446744073709547522:0}, ldvarg15={0:0}, ldvarg2={18446744073709547523:0}, ldvarg3={0:0}, ldvarg4=-2, ldvarg5={18446744073709547524:0}, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9={0:0}, memset((void *)(& ldvarg2), 0, 8UL)={18446744073709547523:0}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, ref_cnt=0, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___10={0:0}, tmp___2={0:0}, tmp___3={0:0}, tmp___4=-2, tmp___5={0:0}, tmp___6=0, tmp___7=4294963234, tmp___8={0:0}, tmp___9={0:0}, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L10605] FCALL memset((void *)(& ldvarg14), 0, 4UL) VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg10=4294963234, ldvarg11={0:0}, ldvarg12={0:0}, ldvarg13=0, ldvarg14={18446744073709547522:0}, ldvarg15={0:0}, ldvarg2={18446744073709547523:0}, ldvarg3={0:0}, ldvarg4=-2, ldvarg5={18446744073709547524:0}, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9={0:0}, memset((void *)(& ldvarg14), 0, 4UL)={18446744073709547522:0}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, ref_cnt=0, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___10={0:0}, tmp___2={0:0}, tmp___3={0:0}, tmp___4=-2, tmp___5={0:0}, tmp___6=0, tmp___7=4294963234, tmp___8={0:0}, tmp___9={0:0}, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L10606] ldv_state_variable_4 = 0 [L10607] ldv_state_variable_1 = 1 [L10608] ref_cnt = 0 [L10609] ldv_state_variable_0 = 1 [L10610] ldv_state_variable_3 = 0 [L10611] ldv_state_variable_2 = 0 VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg10=4294963234, ldvarg11={0:0}, ldvarg12={0:0}, ldvarg13=0, ldvarg14={18446744073709547522:0}, ldvarg15={0:0}, ldvarg2={18446744073709547523:0}, ldvarg3={0:0}, ldvarg4=-2, ldvarg5={18446744073709547524:0}, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9={0:0}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, ref_cnt=0, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___10={0:0}, tmp___2={0:0}, tmp___3={0:0}, tmp___4=-2, tmp___5={0:0}, tmp___6=0, tmp___7=4294963234, tmp___8={0:0}, tmp___9={0:0}, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L10613] tmp___11 = __VERIFIER_nondet_int() [L10615] case 0: [L10800] case 1: [L10806] case 2: VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg10=4294963234, ldvarg11={0:0}, ldvarg12={0:0}, ldvarg13=0, ldvarg14={18446744073709547522:0}, ldvarg15={0:0}, ldvarg2={18446744073709547523:0}, ldvarg3={0:0}, ldvarg4=-2, ldvarg5={18446744073709547524:0}, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9={0:0}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, ref_cnt=0, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___10={0:0}, tmp___11=2, tmp___2={0:0}, tmp___3={0:0}, tmp___4=-2, tmp___5={0:0}, tmp___6=0, tmp___7=4294963234, tmp___8={0:0}, tmp___9={0:0}, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L10807] COND TRUE ldv_state_variable_0 != 0 [L10808] tmp___13 = __VERIFIER_nondet_int() [L10810] case 0: [L10818] case 1: VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg10=4294963234, ldvarg11={0:0}, ldvarg12={0:0}, ldvarg13=0, ldvarg14={18446744073709547522:0}, ldvarg15={0:0}, ldvarg2={18446744073709547523:0}, ldvarg3={0:0}, ldvarg4=-2, ldvarg5={18446744073709547524:0}, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9={0:0}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, ref_cnt=0, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___10={0:0}, tmp___11=2, tmp___13=1, tmp___2={0:0}, tmp___3={0:0}, tmp___4=-2, tmp___5={0:0}, tmp___6=0, tmp___7=4294963234, tmp___8={0:0}, tmp___9={0:0}, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L10819] COND TRUE ldv_state_variable_0 == 1 [L10820] CALL, EXPR netif_init() [L10428] bool tmp ; [L10429] int tmp___0 ; [L10430] int tmp___1 ; VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, ref_cnt=0, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L10432] COND FALSE !((unsigned int )xen_domain_type == 0U) [L10436] CALL, EXPR xen_has_pv_nic_devices() [L11590] return __VERIFIER_nondet_bool(); [L10436] RET, EXPR xen_has_pv_nic_devices() [L10436] tmp = xen_has_pv_nic_devices() [L10437] COND TRUE \read(tmp) [L10438] tmp___0 = 0 VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, ref_cnt=0, tmp=1, tmp___0=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L10442] COND FALSE !(\read(tmp___0)) [L10447] CALL, EXPR cpumask_weight(cpu_online_mask) [L6177] int tmp ; [L6179] CALL, EXPR bitmap_weight((unsigned long const *)(& srcp->bits), nr_cpu_ids) [L6124] int tmp___0 ; [L6126] CALL, EXPR __bitmap_weight(src, nbits) [L11291] return __VERIFIER_nondet_int(); [L6126] RET, EXPR __bitmap_weight(src, nbits) [L6126] tmp___0 = __bitmap_weight(src, nbits) [L6127] return (tmp___0); VAL [={0:0}, \old(nbits)=-3, \result=0, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, nbits=-3, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=0, src={18446744073709547527:18446744073709547525}, src={18446744073709547527:18446744073709547525}, tmp___0=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L6179] RET, EXPR bitmap_weight((unsigned long const *)(& srcp->bits), nr_cpu_ids) [L6179] tmp = bitmap_weight((unsigned long const *)(& srcp->bits), nr_cpu_ids) [L6180] return ((unsigned int )tmp); VAL [={0:0}, \result=0, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=0, srcp={18446744073709547527:18446744073709547525}, srcp={18446744073709547527:18446744073709547525}, tmp=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L10447] RET, EXPR cpumask_weight(cpu_online_mask) [L10447] xennet_max_queues = cpumask_weight(cpu_online_mask) [L10448] CALL, EXPR xenbus_register_frontend(& netfront_driver) [L11620] return __VERIFIER_nondet_int(); [L10448] RET, EXPR xenbus_register_frontend(& netfront_driver) [L10448] tmp___1 = xenbus_register_frontend(& netfront_driver) [L10449] return (tmp___1); VAL [={0:0}, \result=0, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=0, tmp=1, tmp___0=0, tmp___1=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L10820] RET, EXPR netif_init() [L10820] ldv_retval_2 = netif_init() [L10821] COND FALSE !(ldv_retval_2 != 0) VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg10=4294963234, ldvarg11={0:0}, ldvarg12={0:0}, ldvarg13=0, ldvarg14={18446744073709547522:0}, ldvarg15={0:0}, ldvarg2={18446744073709547523:0}, ldvarg3={0:0}, ldvarg4=-2, ldvarg5={18446744073709547524:0}, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9={0:0}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=0, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___10={0:0}, tmp___11=2, tmp___13=1, tmp___2={0:0}, tmp___3={0:0}, tmp___4=-2, tmp___5={0:0}, tmp___6=0, tmp___7=4294963234, tmp___8={0:0}, tmp___9={0:0}, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L10826] COND TRUE ldv_retval_2 == 0 [L10827] ldv_state_variable_0 = 2 [L10828] ldv_state_variable_2 = 1 [L10829] CALL ldv_initialize_xenbus_driver_2() [L10516] void *tmp ; VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L10518] CALL, EXPR ldv_zalloc(1664UL) VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L6483] void *p ; [L6484] void *tmp ; [L6485] int tmp___0 ; [L6487] tmp___0 = __VERIFIER_nondet_int() [L6488] COND TRUE tmp___0 != 0 [L6489] return ((void *)0); VAL [={0:0}, \old(size)=1664, \result={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=0, size=1664, tmp___0=1, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L10518] RET, EXPR ldv_zalloc(1664UL) VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldv_zalloc(1664UL)={0:0}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L10518] tmp = ldv_zalloc(1664UL) [L10519] netfront_driver_group0 = (struct xenbus_device *)tmp VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=0, tmp={0:0}, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L10829] RET ldv_initialize_xenbus_driver_2() [L10830] ldv_state_variable_3 = 1 [L10831] CALL ldv_initialize_ethtool_ops_3() [L10525] void *tmp ; VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L10527] CALL, EXPR ldv_zalloc(3264UL) VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L6483] void *p ; [L6484] void *tmp ; [L6485] int tmp___0 ; [L6487] tmp___0 = __VERIFIER_nondet_int() [L6488] COND TRUE tmp___0 != 0 [L6489] return ((void *)0); VAL [={0:0}, \old(size)=3264, \result={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=0, size=3264, tmp___0=1, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L10527] RET, EXPR ldv_zalloc(3264UL) VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldv_zalloc(3264UL)={0:0}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L10527] tmp = ldv_zalloc(3264UL) [L10528] xennet_ethtool_ops_group0 = (struct net_device *)tmp VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=0, tmp={0:0}, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L10831] RET ldv_initialize_ethtool_ops_3() [L10613] tmp___11 = __VERIFIER_nondet_int() [L10615] case 0: [L10800] case 1: [L10806] case 2: [L10844] case 3: [L10883] case 4: VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg10=4294963234, ldvarg11={0:0}, ldvarg12={0:0}, ldvarg13=0, ldvarg14={18446744073709547522:0}, ldvarg15={0:0}, ldvarg2={18446744073709547523:0}, ldvarg3={0:0}, ldvarg4=-2, ldvarg5={18446744073709547524:0}, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9={0:0}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=0, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___10={0:0}, tmp___11=4, tmp___13=1, tmp___2={0:0}, tmp___3={0:0}, tmp___4=-2, tmp___5={0:0}, tmp___6=0, tmp___7=4294963234, tmp___8={0:0}, tmp___9={0:0}, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L10884] COND TRUE ldv_state_variable_2 != 0 [L10885] tmp___15 = __VERIFIER_nondet_int() [L10887] case 0: VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg10=4294963234, ldvarg11={0:0}, ldvarg12={0:0}, ldvarg13=0, ldvarg14={18446744073709547522:0}, ldvarg15={0:0}, ldvarg2={18446744073709547523:0}, ldvarg3={0:0}, ldvarg4=-2, ldvarg5={18446744073709547524:0}, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9={0:0}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=0, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___10={0:0}, tmp___11=4, tmp___13=1, tmp___15=0, tmp___2={0:0}, tmp___3={0:0}, tmp___4=-2, tmp___5={0:0}, tmp___6=0, tmp___7=4294963234, tmp___8={0:0}, tmp___9={0:0}, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L10888] COND TRUE ldv_state_variable_2 == 1 [L10889] CALL, EXPR netfront_probe(netfront_driver_group0, (struct xenbus_device_id const *)ldvarg15) [L9139] int err ; [L9140] struct net_device *netdev ; [L9141] struct netfront_info *info ; [L9142] long tmp ; [L9143] bool tmp___0 ; [L9144] void *tmp___1 ; [L9146] CALL, EXPR xennet_create_dev(dev) [L9072] int err ; [L9073] struct net_device *netdev ; [L9074] struct netfront_info *np ; [L9075] void *tmp ; [L9076] void *tmp___0 ; [L9077] struct netfront_stats *pcpu_stats ; [L9078] void *tmp___1 ; [L9079] int i ; [L9080] struct netfront_stats *stat ; [L9081] void const *__vpp_verify ; [L9082] unsigned long __ptr ; [L9083] unsigned int tmp___2 ; [L9084] void *tmp___3 ; [L9086] CALL, EXPR alloc_etherdev_mqs(56, xennet_max_queues, xennet_max_queues) [L11368] CALL, EXPR ldv_malloc(sizeof(struct net_device)) VAL [={0:0}, \old(size)=3017, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L6465] void *p ; [L6466] void *tmp ; [L6467] int tmp___0 ; [L6469] tmp___0 = __VERIFIER_nondet_int() [L6470] COND FALSE !(tmp___0 != 0) [L6473] tmp = malloc(size) [L6474] p = tmp VAL [={0:0}, \old(size)=3017, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, p={18446744073709547520:0}, ref_cnt=0, size=3017, tmp={18446744073709547520:0}, tmp___0=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L6475] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [={0:0}, \old(cond)=1, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L6460] COND FALSE !(!cond) VAL [={0:0}, \old(cond)=1, __this_module={18446744073709547560:18446744073709547550}, cond=1, cpu_online_mask={18446744073709547527:18446744073709547525}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L6475] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [={0:0}, \old(size)=3017, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, p={18446744073709547520:0}, ref_cnt=0, size=3017, tmp={18446744073709547520:0}, tmp___0=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L6476] CALL, EXPR IS_ERR(p) VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ptr={18446744073709547520:0}, ref_cnt=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L6295] long tmp ; VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ptr={18446744073709547520:0}, ptr={18446744073709547520:0}, ref_cnt=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L6297] CALL, EXPR ldv__builtin_expect((unsigned long )ptr > 0xfffffffffffff000UL, 0L) VAL [={0:0}, \old(c)=0, \old(exp)=0, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L6532] return (exp); VAL [={0:0}, \old(c)=0, \old(exp)=0, \result=0, __this_module={18446744073709547560:18446744073709547550}, c=0, cpu_online_mask={18446744073709547527:18446744073709547525}, exp=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L6297] RET, EXPR ldv__builtin_expect((unsigned long )ptr > 0xfffffffffffff000UL, 0L) VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, ldv__builtin_expect((unsigned long )ptr > 0xfffffffffffff000UL, 0L)=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ptr={18446744073709547520:0}, ptr={18446744073709547520:0}, ref_cnt=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L6297] tmp = ldv__builtin_expect((unsigned long )ptr > 0xfffffffffffff000UL, 0L) [L6298] return (tmp != 0L); VAL [={0:0}, \result=0, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ptr={18446744073709547520:0}, ptr={18446744073709547520:0}, ref_cnt=0, tmp=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L6476] RET, EXPR IS_ERR(p) VAL [={0:0}, \old(size)=3017, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, IS_ERR(p)=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, p={18446744073709547520:0}, ref_cnt=0, size=3017, tmp={18446744073709547520:0}, tmp___0=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L6476] CALL assume_abort_if_not(IS_ERR(p) == 0) VAL [={0:0}, \old(cond)=1, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L6460] COND FALSE !(!cond) VAL [={0:0}, \old(cond)=1, __this_module={18446744073709547560:18446744073709547550}, cond=1, cpu_online_mask={18446744073709547527:18446744073709547525}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L6476] RET assume_abort_if_not(IS_ERR(p) == 0) VAL [={0:0}, \old(size)=3017, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, IS_ERR(p)=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, p={18446744073709547520:0}, ref_cnt=0, size=3017, tmp={18446744073709547520:0}, tmp___0=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L6477] return (p); VAL [={0:0}, \old(size)=3017, \result={18446744073709547520:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, p={18446744073709547520:0}, ref_cnt=0, size=3017, tmp={18446744073709547520:0}, tmp___0=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L11368] RET, EXPR ldv_malloc(sizeof(struct net_device)) VAL [={0:0}, \old(arg0)=null, \old(arg1)=0, \old(arg2)=0, __this_module={18446744073709547560:18446744073709547550}, arg0=null, arg1=0, arg2=0, cpu_online_mask={18446744073709547527:18446744073709547525}, LDV_IN_INTERRUPT=1, ldv_malloc(sizeof(struct net_device))={18446744073709547520:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L11368] return ldv_malloc(sizeof(struct net_device)); [L9086] RET, EXPR alloc_etherdev_mqs(56, xennet_max_queues, xennet_max_queues) [L9086] netdev = alloc_etherdev_mqs(56, xennet_max_queues, xennet_max_queues) [L9087] COND FALSE !((unsigned long )netdev == (unsigned long )((struct net_device *)0)) VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, dev={0:0}, dev={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netdev={18446744073709547520:0}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L9092] CALL, EXPR netdev_priv((struct net_device const *)netdev) VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, dev={18446744073709547520:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L7015] return ((void *)dev + 3264U); VAL [={0:0}, \result={18446744073709547520:3264}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, dev={18446744073709547520:0}, dev={18446744073709547520:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L9092] RET, EXPR netdev_priv((struct net_device const *)netdev) VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, dev={0:0}, dev={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netdev={18446744073709547520:0}, netdev_priv((struct net_device const *)netdev)={18446744073709547520:3264}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L9092] tmp___0 = netdev_priv((struct net_device const *)netdev) [L9093] np = (struct netfront_info *)tmp___0 [L9094] np->xbdev = dev VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, dev={0:0}, dev={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netdev={18446744073709547520:0}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, np={18446744073709547520:3264}, nr_cpu_ids=-3, ref_cnt=0, tmp___0={18446744073709547520:3264}, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L9095] CALL netif_set_real_num_tx_queues(netdev, 0U) VAL [={0:0}, \old(arg1)=0, __this_module={18446744073709547560:18446744073709547550}, arg0={18446744073709547520:0}, cpu_online_mask={18446744073709547527:18446744073709547525}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L11526] return __VERIFIER_nondet_int(); [L9095] RET netif_set_real_num_tx_queues(netdev, 0U) VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, dev={0:0}, dev={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netdev={18446744073709547520:0}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, netif_set_real_num_tx_queues(netdev, 0U)=0, np={18446744073709547520:3264}, nr_cpu_ids=-3, ref_cnt=0, tmp___0={18446744073709547520:3264}, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L9096] np->queues = (struct netfront_queue *)0 [L9097] err = -12 [L9098] CALL, EXPR __alloc_percpu(32UL, 8UL) [L11287] CALL, EXPR ldv_malloc(0UL) VAL [={0:0}, \old(size)=0, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L6465] void *p ; [L6466] void *tmp ; [L6467] int tmp___0 ; [L6469] tmp___0 = __VERIFIER_nondet_int() [L6470] COND FALSE !(tmp___0 != 0) [L6473] tmp = malloc(size) [L6474] p = tmp VAL [={0:0}, \old(size)=0, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, p={140:0}, ref_cnt=0, size=0, tmp={140:0}, tmp___0=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L6475] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [={0:0}, \old(cond)=1, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L6460] COND FALSE !(!cond) VAL [={0:0}, \old(cond)=1, __this_module={18446744073709547560:18446744073709547550}, cond=1, cpu_online_mask={18446744073709547527:18446744073709547525}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L6475] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [={0:0}, \old(size)=0, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, p={140:0}, ref_cnt=0, size=0, tmp={140:0}, tmp___0=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L6476] CALL, EXPR IS_ERR(p) VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ptr={140:0}, ref_cnt=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L6295] long tmp ; VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ptr={140:0}, ptr={140:0}, ref_cnt=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L6297] CALL, EXPR ldv__builtin_expect((unsigned long )ptr > 0xfffffffffffff000UL, 0L) VAL [={0:0}, \old(c)=0, \old(exp)=0, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L6532] return (exp); VAL [={0:0}, \old(c)=0, \old(exp)=0, \result=0, __this_module={18446744073709547560:18446744073709547550}, c=0, cpu_online_mask={18446744073709547527:18446744073709547525}, exp=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L6297] RET, EXPR ldv__builtin_expect((unsigned long )ptr > 0xfffffffffffff000UL, 0L) VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, ldv__builtin_expect((unsigned long )ptr > 0xfffffffffffff000UL, 0L)=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ptr={140:0}, ptr={140:0}, ref_cnt=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L6297] tmp = ldv__builtin_expect((unsigned long )ptr > 0xfffffffffffff000UL, 0L) [L6298] return (tmp != 0L); VAL [={0:0}, \result=0, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ptr={140:0}, ptr={140:0}, ref_cnt=0, tmp=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L6476] RET, EXPR IS_ERR(p) VAL [={0:0}, \old(size)=0, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, IS_ERR(p)=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, p={140:0}, ref_cnt=0, size=0, tmp={140:0}, tmp___0=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L6476] CALL assume_abort_if_not(IS_ERR(p) == 0) VAL [={0:0}, \old(cond)=1, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L6460] COND FALSE !(!cond) VAL [={0:0}, \old(cond)=1, __this_module={18446744073709547560:18446744073709547550}, cond=1, cpu_online_mask={18446744073709547527:18446744073709547525}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L6476] RET assume_abort_if_not(IS_ERR(p) == 0) VAL [={0:0}, \old(size)=0, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, IS_ERR(p)=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, p={140:0}, ref_cnt=0, size=0, tmp={140:0}, tmp___0=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L6477] return (p); VAL [={0:0}, \old(size)=0, \result={140:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, p={140:0}, ref_cnt=0, size=0, tmp={140:0}, tmp___0=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L11287] RET, EXPR ldv_malloc(0UL) VAL [={0:0}, \old(arg0)=null, \old(arg1)=8, __this_module={18446744073709547560:18446744073709547550}, arg0=null, arg1=8, cpu_online_mask={18446744073709547527:18446744073709547525}, LDV_IN_INTERRUPT=1, ldv_malloc(0UL)={140:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L11287] return ldv_malloc(0UL); [L9098] RET, EXPR __alloc_percpu(32UL, 8UL) [L9098] tmp___1 = __alloc_percpu(32UL, 8UL) [L9099] pcpu_stats = (struct netfront_stats *)tmp___1 VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, dev={0:0}, dev={0:0}, err=-12, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netdev={18446744073709547520:0}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, np={18446744073709547520:3264}, nr_cpu_ids=-3, pcpu_stats={140:0}, ref_cnt=0, tmp___0={18446744073709547520:3264}, tmp___1={140:0}, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L9100] COND TRUE (unsigned long )pcpu_stats != (unsigned long )((struct netfront_stats *)0) [L9101] i = -1 VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, dev={0:0}, dev={0:0}, err=-12, i=-1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netdev={18446744073709547520:0}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, np={18446744073709547520:3264}, nr_cpu_ids=-3, pcpu_stats={140:0}, ref_cnt=0, tmp___0={18446744073709547520:3264}, tmp___1={140:0}, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L9108] CALL, EXPR cpumask_next(i, cpu_possible_mask) VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L6164] unsigned long tmp ; VAL [={0:0}, \old(n)=18446744073709551615, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, n=18446744073709551615, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=0, srcp={18446744073709547531:18446744073709547528}, srcp={18446744073709547531:18446744073709547528}, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L6166] COND FALSE !(n != -1) VAL [={0:0}, \old(n)=18446744073709551615, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, n=18446744073709551615, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=0, srcp={18446744073709547531:18446744073709547528}, srcp={18446744073709547531:18446744073709547528}, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L6170-L6171] CALL, EXPR find_next_bit((unsigned long const *)(& srcp->bits), (unsigned long )nr_cpu_ids, (unsigned long )(n + 1)) [L11417] return __VERIFIER_nondet_ulong(); [L6170-L6171] RET, EXPR find_next_bit((unsigned long const *)(& srcp->bits), (unsigned long )nr_cpu_ids, (unsigned long )(n + 1)) [L6170-L6171] tmp = find_next_bit((unsigned long const *)(& srcp->bits), (unsigned long )nr_cpu_ids, (unsigned long )(n + 1)) [L6172] return ((unsigned int )tmp); VAL [={0:0}, \old(n)=18446744073709551615, \result=0, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, n=18446744073709551615, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=0, srcp={18446744073709547531:18446744073709547528}, srcp={18446744073709547531:18446744073709547528}, tmp=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L9108] RET, EXPR cpumask_next(i, cpu_possible_mask) VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, cpumask_next(i, cpu_possible_mask)=0, dev={0:0}, dev={0:0}, err=-12, i=-1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netdev={18446744073709547520:0}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, np={18446744073709547520:3264}, nr_cpu_ids=-3, pcpu_stats={140:0}, ref_cnt=0, tmp___0={18446744073709547520:3264}, tmp___1={140:0}, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L9108] tmp___2 = cpumask_next(i, cpu_possible_mask) [L9109] i = (int )tmp___2 VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, dev={0:0}, dev={0:0}, err=-12, i=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netdev={18446744073709547520:0}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, np={18446744073709547520:3264}, nr_cpu_ids=-3, pcpu_stats={140:0}, ref_cnt=0, tmp___0={18446744073709547520:3264}, tmp___1={140:0}, tmp___2=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L9110] COND FALSE !(i < nr_cpu_ids) VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, dev={0:0}, dev={0:0}, err=-12, i=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netdev={18446744073709547520:0}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, np={18446744073709547520:3264}, nr_cpu_ids=-3, pcpu_stats={140:0}, ref_cnt=0, tmp___0={18446744073709547520:3264}, tmp___1={140:0}, tmp___2=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L9116] np->stats = pcpu_stats [L9117] EXPR np->stats VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, dev={0:0}, dev={0:0}, err=-12, i=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netdev={18446744073709547520:0}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, np={18446744073709547520:3264}, np->stats={140:0}, nr_cpu_ids=-3, pcpu_stats={140:0}, ref_cnt=0, tmp___0={18446744073709547520:3264}, tmp___1={140:0}, tmp___2=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L9117] COND FALSE !((unsigned long )np->stats == (unsigned long )((struct netfront_stats *)0)) [L9121] netdev->netdev_ops = & xennet_netdev_ops [L9122] netdev->features = 17180131330ULL [L9123] netdev->hw_features = 1114129ULL [L9124] EXPR netdev->features [L9124] EXPR netdev->hw_features [L9124] netdev->features = netdev->features | netdev->hw_features [L9125] netdev->ethtool_ops = & xennet_ethtool_ops [L9126] netdev->dev.parent = & dev->dev [L9127] CALL netif_set_gso_max_size(netdev, 65231U) [L7241] dev->gso_max_size = size VAL [={0:0}, \old(size)=65231, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, dev={18446744073709547520:0}, dev={18446744073709547520:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=0, size=65231, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L9127] RET netif_set_gso_max_size(netdev, 65231U) [L9128] np->netdev = netdev VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, dev={0:0}, dev={0:0}, err=-12, i=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netdev={18446744073709547520:0}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, np={18446744073709547520:3264}, nr_cpu_ids=-3, pcpu_stats={140:0}, ref_cnt=0, tmp___0={18446744073709547520:3264}, tmp___1={140:0}, tmp___2=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L9129] FCALL netif_carrier_off(netdev) VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, dev={0:0}, dev={0:0}, err=-12, i=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netdev={18446744073709547520:0}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, np={18446744073709547520:3264}, nr_cpu_ids=-3, pcpu_stats={140:0}, ref_cnt=0, tmp___0={18446744073709547520:3264}, tmp___1={140:0}, tmp___2=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L9130] return (netdev); VAL [={0:0}, \result={18446744073709547520:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, dev={0:0}, dev={0:0}, err=-12, i=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netdev={18446744073709547520:0}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, np={18446744073709547520:3264}, nr_cpu_ids=-3, pcpu_stats={140:0}, ref_cnt=0, tmp___0={18446744073709547520:3264}, tmp___1={140:0}, tmp___2=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L9146] RET, EXPR xennet_create_dev(dev) [L9146] netdev = xennet_create_dev(dev) [L9147] CALL, EXPR IS_ERR((void const *)netdev) VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ptr={18446744073709547520:0}, ref_cnt=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L6295] long tmp ; VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ptr={18446744073709547520:0}, ptr={18446744073709547520:0}, ref_cnt=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L6297] CALL, EXPR ldv__builtin_expect((unsigned long )ptr > 0xfffffffffffff000UL, 0L) VAL [={0:0}, \old(c)=0, \old(exp)=0, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L6532] return (exp); VAL [={0:0}, \old(c)=0, \old(exp)=0, \result=0, __this_module={18446744073709547560:18446744073709547550}, c=0, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, exp=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L6297] RET, EXPR ldv__builtin_expect((unsigned long )ptr > 0xfffffffffffff000UL, 0L) VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, ldv__builtin_expect((unsigned long )ptr > 0xfffffffffffff000UL, 0L)=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ptr={18446744073709547520:0}, ptr={18446744073709547520:0}, ref_cnt=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L6297] tmp = ldv__builtin_expect((unsigned long )ptr > 0xfffffffffffff000UL, 0L) [L6298] return (tmp != 0L); VAL [={0:0}, \result=0, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ptr={18446744073709547520:0}, ptr={18446744073709547520:0}, ref_cnt=0, tmp=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L9147] RET, EXPR IS_ERR((void const *)netdev) VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, dev={0:0}, dev={0:0}, id={0:0}, id={0:0}, IS_ERR((void const *)netdev)=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netdev={18446744073709547520:0}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L9147] tmp___0 = IS_ERR((void const *)netdev) [L9148] COND FALSE !((int )tmp___0) VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, dev={0:0}, dev={0:0}, id={0:0}, id={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netdev={18446744073709547520:0}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=0, tmp___0=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L9155] CALL, EXPR netdev_priv((struct net_device const *)netdev) VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, dev={18446744073709547520:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L7015] return ((void *)dev + 3264U); VAL [={0:0}, \result={18446744073709547520:3264}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, dev={18446744073709547520:0}, dev={18446744073709547520:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L9155] RET, EXPR netdev_priv((struct net_device const *)netdev) VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, dev={0:0}, dev={0:0}, id={0:0}, id={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netdev={18446744073709547520:0}, netdev_priv((struct net_device const *)netdev)={18446744073709547520:3264}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=0, tmp___0=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L9155] tmp___1 = netdev_priv((struct net_device const *)netdev) [L9156] info = (struct netfront_info *)tmp___1 VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, dev={0:0}, dev={0:0}, id={0:0}, id={0:0}, info={18446744073709547520:3264}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netdev={18446744073709547520:0}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=0, tmp___0=0, tmp___1={18446744073709547520:3264}, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L9157] CALL dev_set_drvdata(& dev->dev, (void *)info) VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, data={18446744073709547520:3264}, dev={0:60}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L6572] dev->driver_data = data VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, data={18446744073709547520:3264}, data={18446744073709547520:3264}, dev={0:60}, dev={0:60}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L9157] RET dev_set_drvdata(& dev->dev, (void *)info) VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, dev={0:0}, dev={0:0}, id={0:0}, id={0:0}, info={18446744073709547520:3264}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netdev={18446744073709547520:0}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=0, tmp___0=0, tmp___1={18446744073709547520:3264}, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L9158] EXPR info->netdev [L9158] CALL, EXPR ldv_register_netdev_38(info->netdev) [L11171] ldv_func_ret_type___3 ldv_func_res ; [L11172] int tmp ; [L11174] CALL, EXPR register_netdev(dev) [L11545] return __VERIFIER_nondet_int(); [L11174] RET, EXPR register_netdev(dev) [L11174] tmp = register_netdev(dev) [L11175] ldv_func_res = tmp [L11176] ldv_state_variable_4 = 1 [L11177] CALL ldv_net_device_ops_4() [L10471] void *tmp ; VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L10473] CALL, EXPR ldv_zalloc(3264UL) VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L6483] void *p ; [L6484] void *tmp ; [L6485] int tmp___0 ; [L6487] tmp___0 = __VERIFIER_nondet_int() [L6488] COND TRUE tmp___0 != 0 [L6489] return ((void *)0); VAL [={0:0}, \old(size)=3264, \result={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=0, size=3264, tmp___0=1, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L10473] RET, EXPR ldv_zalloc(3264UL) VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldv_zalloc(3264UL)={0:0}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L10473] tmp = ldv_zalloc(3264UL) [L10474] xennet_netdev_ops_group1 = (struct net_device *)tmp VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=0, tmp={0:0}, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L11177] RET ldv_net_device_ops_4() [L11178] return (ldv_func_res); VAL [={0:0}, \result=0, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, dev={18446744073709547520:0}, dev={18446744073709547520:0}, ldv_func_res=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=0, tmp=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L9158] RET, EXPR ldv_register_netdev_38(info->netdev) [L9158] err = ldv_register_netdev_38(info->netdev) [L9159] COND FALSE !(err != 0) [L9164] EXPR info->netdev [L9164] CALL, EXPR xennet_sysfs_addif(info->netdev) [L10320] int i ; [L10321] int err ; [L10323] i = 0 VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, i=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netdev={18446744073709547520:0}, netdev={18446744073709547520:0}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L10333] COND TRUE (unsigned int )i <= 2U VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, i=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netdev={18446744073709547520:0}, netdev={18446744073709547520:0}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L10326] CALL, EXPR device_create_file(& netdev->dev, (struct device_attribute const *)(& xennet_attrs) + (unsigned long )i) [L11391] return __VERIFIER_nondet_int(); [L10326] RET, EXPR device_create_file(& netdev->dev, (struct device_attribute const *)(& xennet_attrs) + (unsigned long )i) [L10326] err = device_create_file(& netdev->dev, (struct device_attribute const *)(& xennet_attrs) + (unsigned long )i) [L10327] COND FALSE !(err != 0) [L10331] i = i + 1 VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, err=0, i=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netdev={18446744073709547520:0}, netdev={18446744073709547520:0}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L10333] COND TRUE (unsigned int )i <= 2U VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, err=0, i=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netdev={18446744073709547520:0}, netdev={18446744073709547520:0}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L10326] CALL, EXPR device_create_file(& netdev->dev, (struct device_attribute const *)(& xennet_attrs) + (unsigned long )i) [L11391] return __VERIFIER_nondet_int(); [L10326] RET, EXPR device_create_file(& netdev->dev, (struct device_attribute const *)(& xennet_attrs) + (unsigned long )i) [L10326] err = device_create_file(& netdev->dev, (struct device_attribute const *)(& xennet_attrs) + (unsigned long )i) [L10327] COND FALSE !(err != 0) [L10331] i = i + 1 VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, err=0, i=2, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netdev={18446744073709547520:0}, netdev={18446744073709547520:0}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L10333] COND TRUE (unsigned int )i <= 2U VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, err=0, i=2, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netdev={18446744073709547520:0}, netdev={18446744073709547520:0}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L10326] CALL, EXPR device_create_file(& netdev->dev, (struct device_attribute const *)(& xennet_attrs) + (unsigned long )i) [L11391] return __VERIFIER_nondet_int(); [L10326] RET, EXPR device_create_file(& netdev->dev, (struct device_attribute const *)(& xennet_attrs) + (unsigned long )i) [L10326] err = device_create_file(& netdev->dev, (struct device_attribute const *)(& xennet_attrs) + (unsigned long )i) [L10327] COND FALSE !(err != 0) [L10331] i = i + 1 VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, err=0, i=3, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netdev={18446744073709547520:0}, netdev={18446744073709547520:0}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L10333] COND FALSE !((unsigned int )i <= 2U) [L10337] return (0); VAL [={0:0}, \result=0, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, err=0, i=3, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netdev={18446744073709547520:0}, netdev={18446744073709547520:0}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L9164] RET, EXPR xennet_sysfs_addif(info->netdev) [L9164] err = xennet_sysfs_addif(info->netdev) [L9165] COND FALSE !(err != 0) [L9171] return (0); VAL [={0:0}, \result=0, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, dev={0:0}, dev={0:0}, err=0, id={0:0}, id={0:0}, info={18446744073709547520:3264}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netdev={18446744073709547520:0}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=0, tmp___0=0, tmp___1={18446744073709547520:3264}, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L10889] RET, EXPR netfront_probe(netfront_driver_group0, (struct xenbus_device_id const *)ldvarg15) [L10889] ldv_retval_4 = netfront_probe(netfront_driver_group0, (struct xenbus_device_id const *)ldvarg15) [L10890] COND TRUE ldv_retval_4 == 0 [L10891] ldv_state_variable_2 = 2 [L10892] ref_cnt = ref_cnt + 1 VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg10=4294963234, ldvarg11={0:0}, ldvarg12={0:0}, ldvarg13=0, ldvarg14={18446744073709547522:0}, ldvarg15={0:0}, ldvarg2={18446744073709547523:0}, ldvarg3={0:0}, ldvarg4=-2, ldvarg5={18446744073709547524:0}, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9={0:0}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=1, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___10={0:0}, tmp___11=4, tmp___13=1, tmp___15=0, tmp___2={0:0}, tmp___3={0:0}, tmp___4=-2, tmp___5={0:0}, tmp___6=0, tmp___7=4294963234, tmp___8={0:0}, tmp___9={0:0}, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L10613] tmp___11 = __VERIFIER_nondet_int() [L10615] case 0: VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg10=4294963234, ldvarg11={0:0}, ldvarg12={0:0}, ldvarg13=0, ldvarg14={18446744073709547522:0}, ldvarg15={0:0}, ldvarg2={18446744073709547523:0}, ldvarg3={0:0}, ldvarg4=-2, ldvarg5={18446744073709547524:0}, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9={0:0}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=1, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___10={0:0}, tmp___11=0, tmp___13=1, tmp___15=0, tmp___2={0:0}, tmp___3={0:0}, tmp___4=-2, tmp___5={0:0}, tmp___6=0, tmp___7=4294963234, tmp___8={0:0}, tmp___9={0:0}, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L10616] COND TRUE ldv_state_variable_4 != 0 [L10617] tmp___12 = __VERIFIER_nondet_int() [L10619] case 0: [L10626] case 1: [L10643] case 2: [L10660] case 3: [L10677] case 4: [L10694] case 5: [L10706] case 6: [L10716] case 7: [L10724] case 8: [L10731] case 9: [L10748] case 10: [L10765] case 11: [L10782] case 12: VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg10=4294963234, ldvarg11={0:0}, ldvarg12={0:0}, ldvarg13=0, ldvarg14={18446744073709547522:0}, ldvarg15={0:0}, ldvarg2={18446744073709547523:0}, ldvarg3={0:0}, ldvarg4=-2, ldvarg5={18446744073709547524:0}, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9={0:0}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=1, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___10={0:0}, tmp___11=0, tmp___12=12, tmp___13=1, tmp___15=0, tmp___2={0:0}, tmp___3={0:0}, tmp___4=-2, tmp___5={0:0}, tmp___6=0, tmp___7=4294963234, tmp___8={0:0}, tmp___9={0:0}, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L10783] COND TRUE ldv_state_variable_4 == 1 [L10784] CALL, EXPR ldv_ndo_init_4() [L11478] return __VERIFIER_nondet_int(); [L10784] RET, EXPR ldv_ndo_init_4() [L10784] ldv_retval_0 = ldv_ndo_init_4() [L10785] COND TRUE ldv_retval_0 == 0 [L10786] ldv_state_variable_4 = 2 [L10787] ref_cnt = ref_cnt + 1 VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg10=4294963234, ldvarg11={0:0}, ldvarg12={0:0}, ldvarg13=0, ldvarg14={18446744073709547522:0}, ldvarg15={0:0}, ldvarg2={18446744073709547523:0}, ldvarg3={0:0}, ldvarg4=-2, ldvarg5={18446744073709547524:0}, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9={0:0}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=2, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___10={0:0}, tmp___11=0, tmp___12=12, tmp___13=1, tmp___15=0, tmp___2={0:0}, tmp___3={0:0}, tmp___4=-2, tmp___5={0:0}, tmp___6=0, tmp___7=4294963234, tmp___8={0:0}, tmp___9={0:0}, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L10613] tmp___11 = __VERIFIER_nondet_int() [L10615] case 0: VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg10=4294963234, ldvarg11={0:0}, ldvarg12={0:0}, ldvarg13=0, ldvarg14={18446744073709547522:0}, ldvarg15={0:0}, ldvarg2={18446744073709547523:0}, ldvarg3={0:0}, ldvarg4=-2, ldvarg5={18446744073709547524:0}, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9={0:0}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=2, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___10={0:0}, tmp___11=0, tmp___12=12, tmp___13=1, tmp___15=0, tmp___2={0:0}, tmp___3={0:0}, tmp___4=-2, tmp___5={0:0}, tmp___6=0, tmp___7=4294963234, tmp___8={0:0}, tmp___9={0:0}, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L10616] COND TRUE ldv_state_variable_4 != 0 [L10617] tmp___12 = __VERIFIER_nondet_int() [L10619] case 0: [L10626] case 1: [L10643] case 2: [L10660] case 3: [L10677] case 4: [L10694] case 5: [L10706] case 6: VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg10=4294963234, ldvarg11={0:0}, ldvarg12={0:0}, ldvarg13=0, ldvarg14={18446744073709547522:0}, ldvarg15={0:0}, ldvarg2={18446744073709547523:0}, ldvarg3={0:0}, ldvarg4=-2, ldvarg5={18446744073709547524:0}, ldvarg7={0:0}, ldvarg8={0:0}, ldvarg9={0:0}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=2, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, tmp___10={0:0}, tmp___11=0, tmp___12=6, tmp___13=1, tmp___15=0, tmp___2={0:0}, tmp___3={0:0}, tmp___4=-2, tmp___5={0:0}, tmp___6=0, tmp___7=4294963234, tmp___8={0:0}, tmp___9={0:0}, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L10707] COND TRUE ldv_state_variable_4 == 2 [L10708] CALL xennet_open(xennet_netdev_ops_group1) [L7588] struct netfront_info *np ; [L7589] void *tmp ; [L7590] unsigned int num_queues ; [L7591] unsigned int i ; [L7592] struct netfront_queue *queue ; [L7593] bool tmp___0 ; VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, dev={0:0}, dev={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=2, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L7595] CALL, EXPR netdev_priv((struct net_device const *)dev) VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, dev={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=2, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L7015] return ((void *)dev + 3264U); VAL [={0:0}, \result={0:3264}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, dev={0:0}, dev={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=2, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L7595] RET, EXPR netdev_priv((struct net_device const *)dev) VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, dev={0:0}, dev={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netdev_priv((struct net_device const *)dev)={0:3264}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=2, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L7595] tmp = netdev_priv((struct net_device const *)dev) [L7596] np = (struct netfront_info *)tmp [L7597] EXPR dev->real_num_tx_queues [L7597] num_queues = dev->real_num_tx_queues [L7598] i = 0U [L7599] queue = (struct netfront_queue *)0 [L7600] i = 0U VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, dev={0:0}, dev={0:0}, i=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, np={0:3264}, nr_cpu_ids=-3, num_queues=4294967295, queue={0:0}, ref_cnt=2, tmp={0:3264}, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L7619] COND TRUE i < num_queues VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, dev={0:0}, dev={0:0}, i=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, np={0:3264}, nr_cpu_ids=-3, num_queues=4294967295, queue={0:0}, ref_cnt=2, tmp={0:3264}, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L7603] EXPR np->queues [L7603] queue = np->queues + (unsigned long )i [L7604] CALL napi_enable(& queue->napi) [L6988] int tmp ; [L6989] long tmp___0 ; VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, n={18446744073709547539:-5562}, n={18446744073709547539:-5562}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=2, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L6991] CALL, EXPR constant_test_bit(0L, (unsigned long const volatile *)(& n->state)) VAL [={0:0}, \old(nr)=0, __this_module={18446744073709547560:18446744073709547550}, addr={18446744073709547539:-5546}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=2, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L6103] EXPR addr + (unsigned long )(nr >> 6) [L6103] return ((int )((unsigned long )*(addr + (unsigned long )(nr >> 6)) >> ((int )nr & 63)) & 1); [L6991] RET, EXPR constant_test_bit(0L, (unsigned long const volatile *)(& n->state)) VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, constant_test_bit(0L, (unsigned long const volatile *)(& n->state))=130, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, n={18446744073709547539:-5562}, n={18446744073709547539:-5562}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=2, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L6991] tmp = constant_test_bit(0L, (unsigned long const volatile *)(& n->state)) [L6992] CALL, EXPR ldv__builtin_expect(tmp == 0, 0L) VAL [={0:0}, \old(c)=0, \old(exp)=0, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=2, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L6532] return (exp); VAL [={0:0}, \old(c)=0, \old(exp)=0, \result=0, __this_module={18446744073709547560:18446744073709547550}, c=0, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, exp=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=2, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L6992] RET, EXPR ldv__builtin_expect(tmp == 0, 0L) VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, ldv__builtin_expect(tmp == 0, 0L)=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, n={18446744073709547539:-5562}, n={18446744073709547539:-5562}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=2, tmp=130, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L6992] tmp___0 = ldv__builtin_expect(tmp == 0, 0L) [L6993] COND FALSE !(tmp___0 != 0L) VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, n={18446744073709547539:-5562}, n={18446744073709547539:-5562}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=2, tmp=130, tmp___0=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L7001] FCALL clear_bit(0L, (unsigned long volatile *)(& n->state)) VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, n={18446744073709547539:-5562}, n={18446744073709547539:-5562}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=2, tmp=130, tmp___0=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L7604] RET napi_enable(& queue->napi) [L7605] CALL spin_lock_bh(& queue->rx_lock) VAL [={0:0}, \old(ldv_spin)=0, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=2, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L10974] CALL ldv_spin_lock() VAL [={0:0}, \old(ldv_spin)=0, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=2, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L11262] ldv_spin = 1 VAL [={0:0}, \old(ldv_spin)=0, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=1, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=2, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L10974] RET ldv_spin_lock() VAL [={0:0}, \old(ldv_spin)=0, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=1, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, lock={18446744073709547539:-104}, lock={18446744073709547539:-104}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=2, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L10975] CALL ldv_spin_lock_bh_2(lock) [L6347] FCALL _raw_spin_lock_bh(& lock->ldv_6347.rlock) [L10975] RET ldv_spin_lock_bh_2(lock) [L7605] RET spin_lock_bh(& queue->rx_lock) VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, dev={0:0}, dev={0:0}, i=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=1, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, np={0:3264}, nr_cpu_ids=-3, num_queues=4294967295, queue={18446744073709547539:-5596}, ref_cnt=2, tmp={0:3264}, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L7606] CALL, EXPR netif_carrier_ok((struct net_device const *)dev) VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, dev={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=1, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=2, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L7146] int tmp ; VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, dev={0:0}, dev={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=1, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=2, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L7148] CALL, EXPR constant_test_bit(2L, (unsigned long const volatile *)(& dev->state)) VAL [={0:0}, \old(nr)=2, __this_module={18446744073709547560:18446744073709547550}, addr={0:68}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=1, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=2, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L6103] EXPR addr + (unsigned long )(nr >> 6) [L6103] return ((int )((unsigned long )*(addr + (unsigned long )(nr >> 6)) >> ((int )nr & 63)) & 1); [L7148] RET, EXPR constant_test_bit(2L, (unsigned long const volatile *)(& dev->state)) VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, constant_test_bit(2L, (unsigned long const volatile *)(& dev->state))=0, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, dev={0:0}, dev={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=1, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=2, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L7148] tmp = constant_test_bit(2L, (unsigned long const volatile *)(& dev->state)) [L7149] return (tmp == 0); VAL [={0:0}, \result=1, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, dev={0:0}, dev={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=1, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=2, tmp=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L7606] RET, EXPR netif_carrier_ok((struct net_device const *)dev) VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, dev={0:0}, dev={0:0}, i=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=1, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, netif_carrier_ok((struct net_device const *)dev)=1, np={0:3264}, nr_cpu_ids=-3, num_queues=4294967295, queue={18446744073709547539:-5596}, ref_cnt=2, tmp={0:3264}, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L7606] tmp___0 = netif_carrier_ok((struct net_device const *)dev) [L7607] COND TRUE (int )tmp___0 VAL [={0:0}, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, dev={0:0}, dev={0:0}, i=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=1, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, np={0:3264}, nr_cpu_ids=-3, num_queues=4294967295, queue={18446744073709547539:-5596}, ref_cnt=2, tmp={0:3264}, tmp___0=1, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L7608] CALL xennet_alloc_rx_buffers(queue) VAL [={0:0}, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=1, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=2, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L7431] unsigned short id ; [L7432] struct sk_buff *skb ; [L7433] struct page *page ; [L7434] int i ; [L7435] int batch_target ; [L7436] int notify ; [L7437] RING_IDX req_prod ; [L7438] grant_ref_t ref ; [L7439] unsigned long pfn ; [L7440] void *vaddr ; [L7441] struct xen_netif_rx_request *req ; [L7442] bool tmp ; [L7443] int tmp___0 ; [L7444] long tmp___1 ; [L7445] __u32 tmp___2 ; [L7446] long tmp___3 ; [L7447] unsigned int tmp___4 ; [L7448] int tmp___5 ; [L7449] long tmp___6 ; [L7450] int tmp___7 ; [L7451] long tmp___8 ; [L7452] unsigned char *tmp___9 ; [L7453] struct page *tmp___10 ; [L7454] unsigned char *tmp___11 ; [L7455] struct page *tmp___12 ; [L7456] unsigned long tmp___13 ; [L7457] RING_IDX __old ; [L7458] RING_IDX __new ; [L7460] EXPR queue->rx.req_prod_pvt [L7460] req_prod = queue->rx.req_prod_pvt [L7461] EXPR queue->info [L7461] EXPR (queue->info)->netdev VAL [={0:0}, (queue->info)->netdev={18446744073709547540:-68}, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=1, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, queue={18446744073709547539:-5596}, queue={18446744073709547539:-5596}, queue->info={18446744073709547552:0}, ref_cnt=2, req_prod=4294967282, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L7461] CALL, EXPR netif_carrier_ok((struct net_device const *)(queue->info)->netdev) VAL [={0:0}, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, dev={18446744073709547540:-68}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=1, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=2, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L7146] int tmp ; VAL [={0:0}, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, dev={18446744073709547540:-68}, dev={18446744073709547540:-68}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=1, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=2, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L7148] CALL, EXPR constant_test_bit(2L, (unsigned long const volatile *)(& dev->state)) VAL [={0:0}, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, \old(nr)=2, __this_module={18446744073709547560:18446744073709547550}, addr={18446744073709547540:0}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=1, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=2, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L6103] EXPR addr + (unsigned long )(nr >> 6) [L6103] return ((int )((unsigned long )*(addr + (unsigned long )(nr >> 6)) >> ((int )nr & 63)) & 1); [L7148] RET, EXPR constant_test_bit(2L, (unsigned long const volatile *)(& dev->state)) VAL [={0:0}, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, __this_module={18446744073709547560:18446744073709547550}, constant_test_bit(2L, (unsigned long const volatile *)(& dev->state))=0, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, dev={18446744073709547540:-68}, dev={18446744073709547540:-68}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=1, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=2, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L7148] tmp = constant_test_bit(2L, (unsigned long const volatile *)(& dev->state)) [L7149] return (tmp == 0); VAL [={0:0}, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, \result=1, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, dev={18446744073709547540:-68}, dev={18446744073709547540:-68}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=1, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=2, tmp=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L7461] RET, EXPR netif_carrier_ok((struct net_device const *)(queue->info)->netdev) VAL [={0:0}, (queue->info)->netdev={18446744073709547540:-68}, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=1, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, netif_carrier_ok((struct net_device const *)(queue->info)->netdev)=1, nr_cpu_ids=-3, queue={18446744073709547539:-5596}, queue={18446744073709547539:-5596}, queue->info={18446744073709547552:0}, ref_cnt=2, req_prod=4294967282, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L7461] tmp = netif_carrier_ok((struct net_device const *)(queue->info)->netdev) [L7462] COND TRUE \read(tmp) [L7463] tmp___0 = 0 VAL [={0:0}, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=1, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, queue={18446744073709547539:-5596}, queue={18446744073709547539:-5596}, ref_cnt=2, req_prod=4294967282, tmp=1, tmp___0=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L7467] CALL, EXPR ldv__builtin_expect((long )tmp___0, 0L) VAL [={0:0}, \old(c)=0, \old(exp)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=1, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=2, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L6532] return (exp); VAL [={0:0}, \old(c)=0, \old(exp)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, \result=0, __this_module={18446744073709547560:18446744073709547550}, c=0, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, exp=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=1, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=2, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L7467] RET, EXPR ldv__builtin_expect((long )tmp___0, 0L) VAL [={0:0}, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, ldv__builtin_expect((long )tmp___0, 0L)=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=1, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, queue={18446744073709547539:-5596}, queue={18446744073709547539:-5596}, ref_cnt=2, req_prod=4294967282, tmp=1, tmp___0=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L7467] tmp___1 = ldv__builtin_expect((long )tmp___0, 0L) [L7468] COND FALSE !(tmp___1 != 0L) [L7472] EXPR queue->rx_target [L7472] EXPR queue->rx.rsp_cons [L7472] batch_target = (int )(queue->rx_target + (queue->rx.rsp_cons - req_prod)) [L7473] CALL, EXPR skb_queue_len((struct sk_buff_head const *)(& queue->rx_batch)) VAL [={0:0}, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=1, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, list_={18446744073709547539:0}, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=2, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L6721] EXPR list_->qlen [L6721] return ((__u32 )list_->qlen); [L7473] RET, EXPR skb_queue_len((struct sk_buff_head const *)(& queue->rx_batch)) VAL [={0:0}, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, __this_module={18446744073709547560:18446744073709547550}, batch_target=139, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=1, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, queue={18446744073709547539:-5596}, queue={18446744073709547539:-5596}, ref_cnt=2, req_prod=4294967282, skb_queue_len((struct sk_buff_head const *)(& queue->rx_batch))=4294967434, tmp=1, tmp___0=0, tmp___1=0, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L7473] tmp___2 = skb_queue_len((struct sk_buff_head const *)(& queue->rx_batch)) [L7474] i = (int )tmp___2 VAL [={0:0}, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, __this_module={18446744073709547560:18446744073709547550}, batch_target=139, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, i=138, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=1, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, queue={18446744073709547539:-5596}, queue={18446744073709547539:-5596}, ref_cnt=2, req_prod=4294967282, tmp=1, tmp___0=0, tmp___1=0, tmp___2=138, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L7501] COND TRUE i < batch_target VAL [={0:0}, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, __this_module={18446744073709547560:18446744073709547550}, batch_target=139, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, i=138, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=1, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, queue={18446744073709547539:-5596}, queue={18446744073709547539:-5596}, ref_cnt=2, req_prod=4294967282, tmp=1, tmp___0=0, tmp___1=0, tmp___2=138, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L7477] EXPR queue->info [L7477] EXPR (queue->info)->netdev [L7477] CALL ldv___netdev_alloc_skb_35((queue->info)->netdev, 256U, 544U) [L11143] struct sk_buff *tmp ; VAL [={0:0}, \old(flags)=544, \old(ldv_func_arg2)=256, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, flags=544, ldv_func_arg1={18446744073709547540:-68}, ldv_func_arg1={18446744073709547540:-68}, ldv_func_arg2=256, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=1, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=2, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L11145] CALL ldv_check_alloc_flags(flags) VAL [={0:0}, \old(flags)=544, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=1, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=2, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L11229] COND FALSE !(ldv_spin == 0 || ! (flags & 16U)) VAL [={0:0}, \old(flags)=544, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, flags=544, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=1, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=2, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L11231] CALL ldv_error() VAL [={0:0}, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=1, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=2, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] [L6519] reach_error() VAL [={0:0}, \old(ldv_timer_list_1)=0, \old(ldv_timer_list_1)=0, \old(ldv_timer_state_1)=0, __this_module={18446744073709547560:18446744073709547550}, cpu_online_mask={18446744073709547527:18446744073709547525}, cpu_possible_mask={18446744073709547531:18446744073709547528}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_spin=1, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_state_variable_3=1, ldv_state_variable_4=2, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, netfront_driver={120:0}, netfront_driver_group0={0:0}, netfront_ids={123:0}, nr_cpu_ids=-3, ref_cnt=2, xen_domain_type=1, xennet_attrs={124:0}, xennet_ethtool_ops={122:0}, xennet_ethtool_ops_group0={0:0}, xennet_max_queues=0, xennet_netdev_ops={121:0}, xennet_netdev_ops_group1={0:0}, xennet_stats={125:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 109 procedures, 1593 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 292.9s, OverallIterations: 22, TraceHistogramMax: 20, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.4s, AutomataDifference: 213.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 55617 SdHoareTripleChecker+Valid, 174.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 52361 mSDsluCounter, 211706 SdHoareTripleChecker+Invalid, 153.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 174777 mSDsCounter, 32965 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 129445 IncrementalHoareTripleChecker+Invalid, 162410 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32965 mSolverCounterUnsat, 36929 mSDtfsCounter, 129445 mSolverCounterSat, 1.6s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5740 GetRequests, 5367 SyntacticMatches, 5 SemanticMatches, 368 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1105 ImplicationChecksByTransitivity, 6.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15610occurred in iteration=19, InterpolantAutomatonStates: 265, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 22.1s AutomataMinimizationTime, 21 MinimizatonAttempts, 59265 StatesRemovedByMinimization, 20 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.5s SsaConstructionTime, 12.5s SatisfiabilityAnalysisTime, 31.5s InterpolantComputationTime, 9063 NumberOfCodeBlocks, 9063 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 9893 ConstructedInterpolants, 0 QuantifiedInterpolants, 15189 SizeOfPredicates, 27 NumberOfNonLiveVariables, 29285 ConjunctsInSsa, 125 ConjunctsInUnsatCore, 34 InterpolantComputations, 17 PerfectInterpolantSequences, 12719/12947 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-18 18:38:16,238 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro --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 a900a56caf1252bf2b77371f0836914c913e44b231203ecd4eebd687a96fd0c2 --- 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-8393723 [2022-11-18 18:38:18,560 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 18:38:18,563 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 18:38:18,586 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 18:38:18,587 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 18:38:18,588 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 18:38:18,590 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 18:38:18,592 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 18:38:18,594 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 18:38:18,595 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 18:38:18,596 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 18:38:18,598 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 18:38:18,598 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 18:38:18,600 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 18:38:18,601 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 18:38:18,603 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 18:38:18,604 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 18:38:18,605 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 18:38:18,607 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 18:38:18,609 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 18:38:18,611 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 18:38:18,612 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 18:38:18,614 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 18:38:18,615 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 18:38:18,619 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 18:38:18,620 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 18:38:18,620 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 18:38:18,621 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 18:38:18,622 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 18:38:18,623 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 18:38:18,623 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 18:38:18,624 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 18:38:18,625 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 18:38:18,626 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 18:38:18,627 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 18:38:18,628 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 18:38:18,628 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 18:38:18,629 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 18:38:18,629 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 18:38:18,630 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 18:38:18,631 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 18:38:18,632 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-18 18:38:18,655 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 18:38:18,656 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 18:38:18,656 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 18:38:18,657 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 18:38:18,657 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 18:38:18,658 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 18:38:18,659 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 18:38:18,659 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 18:38:18,659 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 18:38:18,659 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 18:38:18,660 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 18:38:18,660 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 18:38:18,660 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 18:38:18,660 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 18:38:18,661 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-18 18:38:18,661 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-18 18:38:18,661 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-18 18:38:18,661 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 18:38:18,661 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 18:38:18,662 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 18:38:18,662 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 18:38:18,662 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 18:38:18,662 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 18:38:18,663 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:38:18,663 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 18:38:18,663 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 18:38:18,663 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 18:38:18,664 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-18 18:38:18,664 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-18 18:38:18,664 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 18:38:18,664 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 18:38:18,664 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 18:38:18,665 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-18 18:38:18,665 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a900a56caf1252bf2b77371f0836914c913e44b231203ecd4eebd687a96fd0c2 [2022-11-18 18:38:19,027 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 18:38:19,060 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 18:38:19,063 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 18:38:19,064 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 18:38:19,067 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 18:38:19,069 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i [2022-11-18 18:38:19,146 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/data/f68adb85b/66fd5f0bc8c7416b8d54bf4013189c21/FLAG88be9fd99 [2022-11-18 18:38:20,176 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 18:38:20,177 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i [2022-11-18 18:38:20,227 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/data/f68adb85b/66fd5f0bc8c7416b8d54bf4013189c21/FLAG88be9fd99 [2022-11-18 18:38:20,574 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/data/f68adb85b/66fd5f0bc8c7416b8d54bf4013189c21 [2022-11-18 18:38:20,577 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 18:38:20,578 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 18:38:20,580 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 18:38:20,580 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 18:38:20,584 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 18:38:20,585 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:38:20" (1/1) ... [2022-11-18 18:38:20,586 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57780510 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:38:20, skipping insertion in model container [2022-11-18 18:38:20,586 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:38:20" (1/1) ... [2022-11-18 18:38:20,595 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 18:38:20,781 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:38:21,411 WARN L1258 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5986] [2022-11-18 18:38:21,412 WARN L1258 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5987-5988] [2022-11-18 18:38:22,203 WARN L234 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_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i[188410,188423] [2022-11-18 18:38:23,680 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:38:23,757 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-18 18:38:23,808 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:38:23,954 WARN L1258 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5986] [2022-11-18 18:38:23,955 WARN L1258 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5987-5988] [2022-11-18 18:38:23,970 WARN L234 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_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i[188410,188423] [2022-11-18 18:38:24,221 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:38:24,292 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 18:38:24,438 WARN L1258 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5986] [2022-11-18 18:38:24,439 WARN L1258 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5987-5988] [2022-11-18 18:38:24,452 WARN L234 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_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i[188410,188423] [2022-11-18 18:38:24,759 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:38:24,953 INFO L208 MainTranslator]: Completed translation [2022-11-18 18:38:24,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:38:24 WrapperNode [2022-11-18 18:38:24,954 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 18:38:24,956 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 18:38:24,956 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 18:38:24,956 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 18:38:24,964 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:38:24" (1/1) ... [2022-11-18 18:38:25,071 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:38:24" (1/1) ... [2022-11-18 18:38:25,235 INFO L138 Inliner]: procedures = 363, calls = 2000, calls flagged for inlining = 171, calls inlined = 139, statements flattened = 4483 [2022-11-18 18:38:25,236 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 18:38:25,237 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 18:38:25,237 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 18:38:25,237 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 18:38:25,247 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:38:24" (1/1) ... [2022-11-18 18:38:25,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:38:24" (1/1) ... [2022-11-18 18:38:25,271 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:38:24" (1/1) ... [2022-11-18 18:38:25,272 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:38:24" (1/1) ... [2022-11-18 18:38:25,392 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:38:24" (1/1) ... [2022-11-18 18:38:25,420 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:38:24" (1/1) ... [2022-11-18 18:38:25,466 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:38:24" (1/1) ... [2022-11-18 18:38:25,491 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:38:24" (1/1) ... [2022-11-18 18:38:25,523 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 18:38:25,526 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 18:38:25,526 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 18:38:25,526 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 18:38:25,527 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:38:24" (1/1) ... [2022-11-18 18:38:25,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:38:25,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:38:25,564 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 18:38:25,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 18:38:25,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-18 18:38:25,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-18 18:38:25,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-18 18:38:25,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-18 18:38:25,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-18 18:38:25,618 INFO L130 BoogieDeclarations]: Found specification of procedure get_page [2022-11-18 18:38:25,619 INFO L138 BoogieDeclarations]: Found implementation of procedure get_page [2022-11-18 18:38:25,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-18 18:38:25,619 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_release_tx_bufs [2022-11-18 18:38:25,619 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_release_tx_bufs [2022-11-18 18:38:25,619 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-18 18:38:25,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-18 18:38:25,620 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2022-11-18 18:38:25,620 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2022-11-18 18:38:25,620 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2022-11-18 18:38:25,621 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2022-11-18 18:38:25,621 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_change_mtu [2022-11-18 18:38:25,621 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_change_mtu [2022-11-18 18:38:25,622 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-11-18 18:38:25,622 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-11-18 18:38:25,622 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_write [2022-11-18 18:38:25,622 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_write [2022-11-18 18:38:25,622 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-18 18:38:25,623 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-18 18:38:25,623 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-18 18:38:25,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-18 18:38:25,623 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-18 18:38:25,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-18 18:38:25,624 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2022-11-18 18:38:25,624 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2022-11-18 18:38:25,624 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_update_begin [2022-11-18 18:38:25,625 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_update_begin [2022-11-18 18:38:25,625 INFO L130 BoogieDeclarations]: Found specification of procedure bind_evtchn_to_irqhandler [2022-11-18 18:38:25,625 INFO L138 BoogieDeclarations]: Found implementation of procedure bind_evtchn_to_irqhandler [2022-11-18 18:38:25,625 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_transaction_end [2022-11-18 18:38:25,626 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_transaction_end [2022-11-18 18:38:25,626 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_remove [2022-11-18 18:38:25,626 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_remove [2022-11-18 18:38:25,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-18 18:38:25,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-18 18:38:25,627 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-18 18:38:25,627 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-18 18:38:25,627 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-18 18:38:25,628 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-18 18:38:25,629 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_grant_ring [2022-11-18 18:38:25,629 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_grant_ring [2022-11-18 18:38:25,630 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-18 18:38:25,630 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-18 18:38:25,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-18 18:38:25,630 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-18 18:38:25,630 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_claim_grant_reference [2022-11-18 18:38:25,631 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_claim_grant_reference [2022-11-18 18:38:25,631 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-18 18:38:25,631 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-18 18:38:25,632 INFO L130 BoogieDeclarations]: Found specification of procedure netif_set_real_num_tx_queues [2022-11-18 18:38:25,633 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_set_real_num_tx_queues [2022-11-18 18:38:25,633 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_end_foreign_access [2022-11-18 18:38:25,633 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_end_foreign_access [2022-11-18 18:38:25,633 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_disconnect_backend [2022-11-18 18:38:25,634 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_disconnect_backend [2022-11-18 18:38:25,634 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_get_stats64 [2022-11-18 18:38:25,634 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_get_stats64 [2022-11-18 18:38:25,634 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-18 18:38:25,635 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-18 18:38:25,635 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_alloc_evtchn [2022-11-18 18:38:25,635 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_alloc_evtchn [2022-11-18 18:38:25,635 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-11-18 18:38:25,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-11-18 18:38:25,636 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_alloc_grant_references [2022-11-18 18:38:25,636 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_alloc_grant_references [2022-11-18 18:38:25,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 18:38:25,636 INFO L130 BoogieDeclarations]: Found specification of procedure netfront_tx_slot_available [2022-11-18 18:38:25,636 INFO L138 BoogieDeclarations]: Found implementation of procedure netfront_tx_slot_available [2022-11-18 18:38:25,636 INFO L130 BoogieDeclarations]: Found specification of procedure notify_remote_via_irq [2022-11-18 18:38:25,637 INFO L138 BoogieDeclarations]: Found implementation of procedure notify_remote_via_irq [2022-11-18 18:38:25,637 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_release_grant_reference [2022-11-18 18:38:25,637 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_release_grant_reference [2022-11-18 18:38:25,638 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-11-18 18:38:25,638 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-11-18 18:38:25,638 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_can_sg [2022-11-18 18:38:25,639 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_can_sg [2022-11-18 18:38:25,639 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-18 18:38:25,639 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-18 18:38:25,640 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-18 18:38:25,640 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-18 18:38:25,640 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-18 18:38:25,641 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-11-18 18:38:25,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-11-18 18:38:25,641 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2022-11-18 18:38:25,641 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_tail [2022-11-18 18:38:25,641 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_tail [2022-11-18 18:38:25,641 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_rxidx [2022-11-18 18:38:25,642 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_rxidx [2022-11-18 18:38:25,642 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-18 18:38:25,642 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-18 18:38:25,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-18 18:38:25,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-18 18:38:25,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-18 18:38:25,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 18:38:25,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-18 18:38:25,644 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2022-11-18 18:38:25,644 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2022-11-18 18:38:25,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-18 18:38:25,644 INFO L130 BoogieDeclarations]: Found specification of procedure write_queue_xenstore_keys [2022-11-18 18:38:25,645 INFO L138 BoogieDeclarations]: Found implementation of procedure write_queue_xenstore_keys [2022-11-18 18:38:25,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-11-18 18:38:25,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-18 18:38:25,649 INFO L130 BoogieDeclarations]: Found specification of procedure pfn_to_mfn [2022-11-18 18:38:25,649 INFO L138 BoogieDeclarations]: Found implementation of procedure pfn_to_mfn [2022-11-18 18:38:25,650 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-11-18 18:38:25,651 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-11-18 18:38:25,652 INFO L130 BoogieDeclarations]: Found specification of procedure add_id_to_freelist [2022-11-18 18:38:25,653 INFO L138 BoogieDeclarations]: Found implementation of procedure add_id_to_freelist [2022-11-18 18:38:25,653 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_alloc_rx_buffers [2022-11-18 18:38:25,654 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_alloc_rx_buffers [2022-11-18 18:38:25,659 INFO L130 BoogieDeclarations]: Found specification of procedure skb_entry_set_link [2022-11-18 18:38:25,660 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_entry_set_link [2022-11-18 18:38:25,660 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-18 18:38:25,660 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-18 18:38:25,661 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-18 18:38:25,661 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-18 18:38:25,661 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-11-18 18:38:25,661 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-11-18 18:38:25,661 INFO L130 BoogieDeclarations]: Found specification of procedure free_pages [2022-11-18 18:38:25,661 INFO L138 BoogieDeclarations]: Found implementation of procedure free_pages [2022-11-18 18:38:25,662 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_end_foreign_access_ref [2022-11-18 18:38:25,662 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_end_foreign_access_ref [2022-11-18 18:38:25,662 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-18 18:38:25,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-18 18:38:25,662 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-11-18 18:38:25,662 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-11-18 18:38:25,663 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_free_grant_references [2022-11-18 18:38:25,663 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_free_grant_references [2022-11-18 18:38:25,663 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2022-11-18 18:38:25,663 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2022-11-18 18:38:25,663 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-11-18 18:38:25,663 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-11-18 18:38:25,664 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-18 18:38:25,664 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-18 18:38:25,664 INFO L130 BoogieDeclarations]: Found specification of procedure unbind_from_irqhandler [2022-11-18 18:38:25,664 INFO L138 BoogieDeclarations]: Found implementation of procedure unbind_from_irqhandler [2022-11-18 18:38:25,664 INFO L130 BoogieDeclarations]: Found specification of procedure get_zeroed_page [2022-11-18 18:38:25,665 INFO L138 BoogieDeclarations]: Found implementation of procedure get_zeroed_page [2022-11-18 18:38:25,665 INFO L130 BoogieDeclarations]: Found specification of procedure netback_changed [2022-11-18 18:38:25,666 INFO L138 BoogieDeclarations]: Found implementation of procedure netback_changed [2022-11-18 18:38:25,666 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_poll_controller [2022-11-18 18:38:25,666 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_poll_controller [2022-11-18 18:38:25,666 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_insert [2022-11-18 18:38:25,666 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_insert [2022-11-18 18:38:25,666 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-18 18:38:25,667 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-18 18:38:25,667 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-18 18:38:25,667 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-18 18:38:25,667 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2022-11-18 18:38:25,667 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2022-11-18 18:38:25,667 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-18 18:38:25,668 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-18 18:38:25,668 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_select_queue [2022-11-18 18:38:25,668 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_select_queue [2022-11-18 18:38:25,668 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_end_access [2022-11-18 18:38:25,668 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_end_access [2022-11-18 18:38:25,668 INFO L130 BoogieDeclarations]: Found specification of procedure skb_get [2022-11-18 18:38:25,669 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_get [2022-11-18 18:38:25,669 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-18 18:38:25,669 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-18 18:38:25,669 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-18 18:38:25,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-18 18:38:25,669 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_get_rx_ref [2022-11-18 18:38:25,670 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_get_rx_ref [2022-11-18 18:38:25,670 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-18 18:38:25,670 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-18 18:38:25,670 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2022-11-18 18:38:25,670 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2022-11-18 18:38:25,670 INFO L130 BoogieDeclarations]: Found specification of procedure skb_add_rx_frag [2022-11-18 18:38:25,671 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_add_rx_frag [2022-11-18 18:38:25,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-18 18:38:25,671 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2022-11-18 18:38:25,671 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2022-11-18 18:38:25,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-18 18:38:25,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-18 18:38:25,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-18 18:38:25,674 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-11-18 18:38:25,675 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-11-18 18:38:25,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-18 18:38:25,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-18 18:38:25,675 INFO L130 BoogieDeclarations]: Found specification of procedure get_id_from_freelist [2022-11-18 18:38:25,676 INFO L138 BoogieDeclarations]: Found implementation of procedure get_id_from_freelist [2022-11-18 18:38:25,676 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2022-11-18 18:38:25,676 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2022-11-18 18:38:25,676 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_fix_features [2022-11-18 18:38:25,676 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_fix_features [2022-11-18 18:38:25,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 18:38:25,677 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-18 18:38:25,677 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-18 18:38:25,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 18:38:25,677 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-18 18:38:25,677 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-18 18:38:25,677 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_next [2022-11-18 18:38:25,678 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_next [2022-11-18 18:38:25,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 18:38:25,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-18 18:38:25,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-18 18:38:25,678 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2022-11-18 18:38:25,679 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2022-11-18 18:38:25,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-18 18:38:25,679 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-11-18 18:38:25,679 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-11-18 18:38:25,679 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-11-18 18:38:25,679 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-11-18 18:38:25,680 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-11-18 18:38:25,680 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-11-18 18:38:25,680 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2022-11-18 18:38:25,680 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2022-11-18 18:38:25,680 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2022-11-18 18:38:25,680 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2022-11-18 18:38:25,681 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-18 18:38:25,681 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-18 18:38:25,681 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2022-11-18 18:38:25,681 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2022-11-18 18:38:25,681 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_grant_foreign_access_ref [2022-11-18 18:38:25,681 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_grant_foreign_access_ref [2022-11-18 18:38:25,682 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-18 18:38:25,682 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-18 18:38:25,682 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_set_features [2022-11-18 18:38:25,682 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_set_features [2022-11-18 18:38:25,682 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-11-18 18:38:25,682 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-11-18 18:38:25,683 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-18 18:38:25,683 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-18 18:38:25,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-18 18:38:25,683 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-11-18 18:38:25,683 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-11-18 18:38:25,685 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2022-11-18 18:38:25,689 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2022-11-18 18:38:25,689 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_free_evtchn [2022-11-18 18:38:25,690 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_free_evtchn [2022-11-18 18:38:25,690 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_get_rx_skb [2022-11-18 18:38:25,690 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_get_rx_skb [2022-11-18 18:38:25,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 18:38:25,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 18:38:25,690 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_tx_buf_gc [2022-11-18 18:38:25,691 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_tx_buf_gc [2022-11-18 18:38:25,692 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-11-18 18:38:25,693 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-11-18 18:38:25,693 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-18 18:38:25,694 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-18 18:38:26,705 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 18:38:26,709 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 18:38:45,283 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-18 18:39:20,660 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 18:39:20,689 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 18:39:20,689 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 18:39:20,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:39:20 BoogieIcfgContainer [2022-11-18 18:39:20,695 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 18:39:20,697 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 18:39:20,697 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 18:39:20,705 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 18:39:20,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:38:20" (1/3) ... [2022-11-18 18:39:20,707 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37ae2c9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:39:20, skipping insertion in model container [2022-11-18 18:39:20,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:38:24" (2/3) ... [2022-11-18 18:39:20,713 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37ae2c9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:39:20, skipping insertion in model container [2022-11-18 18:39:20,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:39:20" (3/3) ... [2022-11-18 18:39:20,715 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i [2022-11-18 18:39:20,739 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 18:39:20,740 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 18:39:20,865 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 18:39:20,873 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;@5d8d59b5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 18:39:20,873 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 18:39:20,888 INFO L276 IsEmpty]: Start isEmpty. Operand has 1573 states, 1097 states have (on average 1.293527803099362) internal successors, (1419), 1127 states have internal predecessors, (1419), 367 states have call successors, (367), 108 states have call predecessors, (367), 107 states have return successors, (362), 360 states have call predecessors, (362), 362 states have call successors, (362) [2022-11-18 18:39:20,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-11-18 18:39:20,953 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:39:20,954 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:39:20,955 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:39:20,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:39:20,963 INFO L85 PathProgramCache]: Analyzing trace with hash 668980256, now seen corresponding path program 1 times [2022-11-18 18:39:20,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:39:20,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1933828171] [2022-11-18 18:39:20,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:39:20,988 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:39:20,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:39:20,999 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:39:21,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-18 18:39:22,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:39:22,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 1614 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 18:39:23,010 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:39:23,154 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-11-18 18:39:23,155 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:39:23,156 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:39:23,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1933828171] [2022-11-18 18:39:23,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1933828171] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:39:23,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:39:23,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 18:39:23,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890566140] [2022-11-18 18:39:23,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:39:23,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 18:39:23,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:39:23,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:39:23,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:39:23,254 INFO L87 Difference]: Start difference. First operand has 1573 states, 1097 states have (on average 1.293527803099362) internal successors, (1419), 1127 states have internal predecessors, (1419), 367 states have call successors, (367), 108 states have call predecessors, (367), 107 states have return successors, (362), 360 states have call predecessors, (362), 362 states have call successors, (362) Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-18 18:39:23,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:39:23,762 INFO L93 Difference]: Finished difference Result 3144 states and 4335 transitions. [2022-11-18 18:39:23,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 18:39:23,766 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 153 [2022-11-18 18:39:23,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:39:23,805 INFO L225 Difference]: With dead ends: 3144 [2022-11-18 18:39:23,805 INFO L226 Difference]: Without dead ends: 1546 [2022-11-18 18:39:23,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 18:39:23,828 INFO L413 NwaCegarLoop]: 2142 mSDtfsCounter, 2 mSDsluCounter, 4278 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 6420 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:39:23,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 6420 Invalid, 15 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:39:23,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1546 states. [2022-11-18 18:39:23,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1546 to 1546. [2022-11-18 18:39:23,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1546 states, 1077 states have (on average 1.2794800371402042) internal successors, (1378), 1100 states have internal predecessors, (1378), 362 states have call successors, (362), 107 states have call predecessors, (362), 106 states have return successors, (361), 359 states have call predecessors, (361), 361 states have call successors, (361) [2022-11-18 18:39:24,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1546 states to 1546 states and 2101 transitions. [2022-11-18 18:39:24,015 INFO L78 Accepts]: Start accepts. Automaton has 1546 states and 2101 transitions. Word has length 153 [2022-11-18 18:39:24,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:39:24,018 INFO L495 AbstractCegarLoop]: Abstraction has 1546 states and 2101 transitions. [2022-11-18 18:39:24,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-18 18:39:24,018 INFO L276 IsEmpty]: Start isEmpty. Operand 1546 states and 2101 transitions. [2022-11-18 18:39:24,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-18 18:39:24,037 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:39:24,038 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:39:24,079 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-11-18 18:39:24,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:39:24,261 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:39:24,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:39:24,262 INFO L85 PathProgramCache]: Analyzing trace with hash 570595544, now seen corresponding path program 1 times [2022-11-18 18:39:24,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:39:24,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [315119232] [2022-11-18 18:39:24,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:39:24,264 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:39:24,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:39:24,270 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:39:24,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-18 18:39:26,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:39:26,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 1647 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 18:39:26,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:39:26,259 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2022-11-18 18:39:26,259 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:39:26,650 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2022-11-18 18:39:26,651 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:39:26,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [315119232] [2022-11-18 18:39:26,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [315119232] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:39:26,651 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 18:39:26,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-18 18:39:26,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464357686] [2022-11-18 18:39:26,652 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 18:39:26,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 18:39:26,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:39:26,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 18:39:26,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-18 18:39:26,655 INFO L87 Difference]: Start difference. First operand 1546 states and 2101 transitions. Second operand has 8 states, 8 states have (on average 13.375) internal successors, (107), 8 states have internal predecessors, (107), 2 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-18 18:39:27,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:39:27,389 INFO L93 Difference]: Finished difference Result 3081 states and 4194 transitions. [2022-11-18 18:39:27,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 18:39:27,391 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.375) internal successors, (107), 8 states have internal predecessors, (107), 2 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 156 [2022-11-18 18:39:27,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:39:27,410 INFO L225 Difference]: With dead ends: 3081 [2022-11-18 18:39:27,411 INFO L226 Difference]: Without dead ends: 1555 [2022-11-18 18:39:27,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 304 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2022-11-18 18:39:27,422 INFO L413 NwaCegarLoop]: 2096 mSDtfsCounter, 14 mSDsluCounter, 6278 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 8374 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 18:39:27,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 8374 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 18:39:27,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1555 states. [2022-11-18 18:39:27,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1555 to 1555. [2022-11-18 18:39:27,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1555 states, 1085 states have (on average 1.280184331797235) internal successors, (1389), 1108 states have internal predecessors, (1389), 362 states have call successors, (362), 108 states have call predecessors, (362), 107 states have return successors, (361), 359 states have call predecessors, (361), 361 states have call successors, (361) [2022-11-18 18:39:27,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 2112 transitions. [2022-11-18 18:39:27,539 INFO L78 Accepts]: Start accepts. Automaton has 1555 states and 2112 transitions. Word has length 156 [2022-11-18 18:39:27,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:39:27,541 INFO L495 AbstractCegarLoop]: Abstraction has 1555 states and 2112 transitions. [2022-11-18 18:39:27,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.375) internal successors, (107), 8 states have internal predecessors, (107), 2 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-18 18:39:27,542 INFO L276 IsEmpty]: Start isEmpty. Operand 1555 states and 2112 transitions. [2022-11-18 18:39:27,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-11-18 18:39:27,549 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:39:27,549 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:39:27,593 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-18 18:39:27,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:39:27,763 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:39:27,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:39:27,764 INFO L85 PathProgramCache]: Analyzing trace with hash 1902875074, now seen corresponding path program 1 times [2022-11-18 18:39:27,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:39:27,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1136050116] [2022-11-18 18:39:27,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:39:27,766 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:39:27,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:39:27,768 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:39:27,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-18 18:39:29,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:39:29,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 1723 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-18 18:39:29,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:39:29,895 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 46 proven. 10 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2022-11-18 18:39:29,895 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:39:30,772 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-18 18:39:30,773 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:39:30,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1136050116] [2022-11-18 18:39:30,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1136050116] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:39:30,773 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 18:39:30,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2022-11-18 18:39:30,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938365703] [2022-11-18 18:39:30,774 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 18:39:30,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-18 18:39:30,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:39:30,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-18 18:39:30,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-11-18 18:39:30,776 INFO L87 Difference]: Start difference. First operand 1555 states and 2112 transitions. Second operand has 14 states, 14 states have (on average 8.0) internal successors, (112), 14 states have internal predecessors, (112), 2 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-18 18:39:32,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:39:32,740 INFO L93 Difference]: Finished difference Result 3111 states and 4236 transitions. [2022-11-18 18:39:32,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-18 18:39:32,742 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 8.0) internal successors, (112), 14 states have internal predecessors, (112), 2 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 162 [2022-11-18 18:39:32,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:39:32,752 INFO L225 Difference]: With dead ends: 3111 [2022-11-18 18:39:32,752 INFO L226 Difference]: Without dead ends: 1574 [2022-11-18 18:39:32,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 310 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=204, Invalid=446, Unknown=0, NotChecked=0, Total=650 [2022-11-18 18:39:32,760 INFO L413 NwaCegarLoop]: 2098 mSDtfsCounter, 32 mSDsluCounter, 14656 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 16754 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:39:32,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 16754 Invalid, 201 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [36 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-18 18:39:32,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1574 states. [2022-11-18 18:39:32,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1574 to 1570. [2022-11-18 18:39:32,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 1099 states have (on average 1.281164695177434) internal successors, (1408), 1122 states have internal predecessors, (1408), 362 states have call successors, (362), 109 states have call predecessors, (362), 108 states have return successors, (361), 359 states have call predecessors, (361), 361 states have call successors, (361) [2022-11-18 18:39:32,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 2131 transitions. [2022-11-18 18:39:32,836 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 2131 transitions. Word has length 162 [2022-11-18 18:39:32,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:39:32,838 INFO L495 AbstractCegarLoop]: Abstraction has 1570 states and 2131 transitions. [2022-11-18 18:39:32,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.0) internal successors, (112), 14 states have internal predecessors, (112), 2 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-18 18:39:32,838 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 2131 transitions. [2022-11-18 18:39:32,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-11-18 18:39:32,844 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:39:32,845 INFO L195 NwaCegarLoop]: trace histogram [18, 9, 9, 9, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:39:32,887 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-18 18:39:33,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:39:33,067 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:39:33,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:39:33,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1203978336, now seen corresponding path program 2 times [2022-11-18 18:39:33,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:39:33,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [731679772] [2022-11-18 18:39:33,070 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 18:39:33,070 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:39:33,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:39:33,074 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:39:33,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-18 18:39:34,304 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 18:39:34,304 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:39:34,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 1042 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 18:39:34,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:39:34,425 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked. [2022-11-18 18:39:34,426 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:39:34,426 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:39:34,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [731679772] [2022-11-18 18:39:34,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [731679772] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:39:34,427 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:39:34,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:39:34,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882246639] [2022-11-18 18:39:34,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:39:34,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:39:34,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:39:34,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:39:34,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:39:34,429 INFO L87 Difference]: Start difference. First operand 1570 states and 2131 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-18 18:39:34,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:39:34,845 INFO L93 Difference]: Finished difference Result 4039 states and 5471 transitions. [2022-11-18 18:39:34,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:39:34,846 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 171 [2022-11-18 18:39:34,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:39:34,864 INFO L225 Difference]: With dead ends: 4039 [2022-11-18 18:39:34,864 INFO L226 Difference]: Without dead ends: 2512 [2022-11-18 18:39:34,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:39:34,874 INFO L413 NwaCegarLoop]: 2326 mSDtfsCounter, 1302 mSDsluCounter, 2034 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1302 SdHoareTripleChecker+Valid, 4360 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 18:39:34,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1302 Valid, 4360 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 18:39:34,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2512 states. [2022-11-18 18:39:34,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2512 to 2509. [2022-11-18 18:39:35,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2509 states, 1757 states have (on average 1.280022766078543) internal successors, (2249), 1794 states have internal predecessors, (2249), 573 states have call successors, (573), 179 states have call predecessors, (573), 178 states have return successors, (572), 569 states have call predecessors, (572), 572 states have call successors, (572) [2022-11-18 18:39:35,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2509 states to 2509 states and 3394 transitions. [2022-11-18 18:39:35,027 INFO L78 Accepts]: Start accepts. Automaton has 2509 states and 3394 transitions. Word has length 171 [2022-11-18 18:39:35,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:39:35,027 INFO L495 AbstractCegarLoop]: Abstraction has 2509 states and 3394 transitions. [2022-11-18 18:39:35,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-18 18:39:35,028 INFO L276 IsEmpty]: Start isEmpty. Operand 2509 states and 3394 transitions. [2022-11-18 18:39:35,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-11-18 18:39:35,036 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:39:35,037 INFO L195 NwaCegarLoop]: trace histogram [18, 9, 9, 9, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:39:35,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-18 18:39:35,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:39:35,263 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:39:35,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:39:35,264 INFO L85 PathProgramCache]: Analyzing trace with hash 1510709948, now seen corresponding path program 1 times [2022-11-18 18:39:35,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:39:35,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1532927917] [2022-11-18 18:39:35,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:39:35,266 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:39:35,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:39:35,268 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:39:35,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-18 18:39:37,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:39:37,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 1495 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 18:39:37,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:39:37,527 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 58 proven. 3 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2022-11-18 18:39:37,527 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:39:38,068 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 58 proven. 3 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2022-11-18 18:39:38,068 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:39:38,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1532927917] [2022-11-18 18:39:38,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1532927917] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:39:38,069 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 18:39:38,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-18 18:39:38,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372091249] [2022-11-18 18:39:38,070 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 18:39:38,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 18:39:38,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:39:38,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 18:39:38,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-11-18 18:39:38,072 INFO L87 Difference]: Start difference. First operand 2509 states and 3394 transitions. Second operand has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 states have internal predecessors, (103), 2 states have call successors, (37), 2 states have call predecessors, (37), 4 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-11-18 18:39:38,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:39:38,769 INFO L93 Difference]: Finished difference Result 4967 states and 6719 transitions. [2022-11-18 18:39:38,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 18:39:38,771 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 states have internal predecessors, (103), 2 states have call successors, (37), 2 states have call predecessors, (37), 4 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 180 [2022-11-18 18:39:38,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:39:38,788 INFO L225 Difference]: With dead ends: 4967 [2022-11-18 18:39:38,788 INFO L226 Difference]: Without dead ends: 2509 [2022-11-18 18:39:38,799 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 362 GetRequests, 350 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2022-11-18 18:39:38,800 INFO L413 NwaCegarLoop]: 2094 mSDtfsCounter, 23 mSDsluCounter, 10457 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 12551 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-18 18:39:38,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 12551 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-18 18:39:38,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2509 states. [2022-11-18 18:39:38,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2509 to 2509. [2022-11-18 18:39:38,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2509 states, 1757 states have (on average 1.277746158224246) internal successors, (2245), 1794 states have internal predecessors, (2245), 573 states have call successors, (573), 179 states have call predecessors, (573), 178 states have return successors, (572), 569 states have call predecessors, (572), 572 states have call successors, (572) [2022-11-18 18:39:38,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2509 states to 2509 states and 3390 transitions. [2022-11-18 18:39:38,937 INFO L78 Accepts]: Start accepts. Automaton has 2509 states and 3390 transitions. Word has length 180 [2022-11-18 18:39:38,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:39:38,939 INFO L495 AbstractCegarLoop]: Abstraction has 2509 states and 3390 transitions. [2022-11-18 18:39:38,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 states have internal predecessors, (103), 2 states have call successors, (37), 2 states have call predecessors, (37), 4 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-11-18 18:39:38,940 INFO L276 IsEmpty]: Start isEmpty. Operand 2509 states and 3390 transitions. [2022-11-18 18:39:38,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-11-18 18:39:38,950 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:39:38,950 INFO L195 NwaCegarLoop]: trace histogram [20, 9, 9, 9, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:39:38,993 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-18 18:39:39,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:39:39,167 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:39:39,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:39:39,168 INFO L85 PathProgramCache]: Analyzing trace with hash 981928252, now seen corresponding path program 2 times [2022-11-18 18:39:39,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:39:39,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [325893130] [2022-11-18 18:39:39,170 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 18:39:39,170 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:39:39,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:39:39,172 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:39:39,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-18 18:39:40,590 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 18:39:40,590 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:39:40,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 994 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-18 18:39:40,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:39:40,798 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2022-11-18 18:39:40,798 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:39:40,799 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:39:40,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [325893130] [2022-11-18 18:39:40,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [325893130] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:39:40,799 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:39:40,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 18:39:40,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808464683] [2022-11-18 18:39:40,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:39:40,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:39:40,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:39:40,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:39:40,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:39:40,801 INFO L87 Difference]: Start difference. First operand 2509 states and 3390 transitions. Second operand has 6 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-18 18:39:42,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:39:42,079 INFO L93 Difference]: Finished difference Result 4972 states and 6731 transitions. [2022-11-18 18:39:42,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 18:39:42,081 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 182 [2022-11-18 18:39:42,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:39:42,095 INFO L225 Difference]: With dead ends: 4972 [2022-11-18 18:39:42,096 INFO L226 Difference]: Without dead ends: 2519 [2022-11-18 18:39:42,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-18 18:39:42,107 INFO L413 NwaCegarLoop]: 2064 mSDtfsCounter, 5 mSDsluCounter, 8203 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 10267 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:39:42,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 10267 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-18 18:39:42,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2519 states. [2022-11-18 18:39:42,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2519 to 2515. [2022-11-18 18:39:42,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2515 states, 1761 states have (on average 1.277115275411698) internal successors, (2249), 1798 states have internal predecessors, (2249), 575 states have call successors, (575), 179 states have call predecessors, (575), 178 states have return successors, (574), 571 states have call predecessors, (574), 574 states have call successors, (574) [2022-11-18 18:39:42,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2515 states to 2515 states and 3398 transitions. [2022-11-18 18:39:42,218 INFO L78 Accepts]: Start accepts. Automaton has 2515 states and 3398 transitions. Word has length 182 [2022-11-18 18:39:42,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:39:42,219 INFO L495 AbstractCegarLoop]: Abstraction has 2515 states and 3398 transitions. [2022-11-18 18:39:42,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-18 18:39:42,220 INFO L276 IsEmpty]: Start isEmpty. Operand 2515 states and 3398 transitions. [2022-11-18 18:39:42,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-11-18 18:39:42,227 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:39:42,227 INFO L195 NwaCegarLoop]: trace histogram [20, 9, 9, 9, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:39:42,253 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-18 18:39:42,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:39:42,451 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:39:42,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:39:42,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1624095302, now seen corresponding path program 1 times [2022-11-18 18:39:42,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:39:42,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1631886586] [2022-11-18 18:39:42,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:39:42,453 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:39:42,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:39:42,454 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:39:42,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-18 18:39:44,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:39:44,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 1517 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 18:39:44,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:39:44,332 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 423 trivial. 0 not checked. [2022-11-18 18:39:44,332 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:39:44,332 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:39:44,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1631886586] [2022-11-18 18:39:44,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1631886586] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:39:44,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:39:44,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:39:44,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520476085] [2022-11-18 18:39:44,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:39:44,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:39:44,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:39:44,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:39:44,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:39:44,335 INFO L87 Difference]: Start difference. First operand 2515 states and 3398 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-18 18:39:45,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:39:45,079 INFO L93 Difference]: Finished difference Result 6078 states and 8169 transitions. [2022-11-18 18:39:45,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:39:45,080 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 182 [2022-11-18 18:39:45,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:39:45,103 INFO L225 Difference]: With dead ends: 6078 [2022-11-18 18:39:45,103 INFO L226 Difference]: Without dead ends: 3619 [2022-11-18 18:39:45,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:39:45,115 INFO L413 NwaCegarLoop]: 2502 mSDtfsCounter, 1351 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1351 SdHoareTripleChecker+Valid, 4438 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-18 18:39:45,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1351 Valid, 4438 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-18 18:39:45,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3619 states. [2022-11-18 18:39:45,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3619 to 3611. [2022-11-18 18:39:45,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3611 states, 2547 states have (on average 1.276403612092658) internal successors, (3251), 2602 states have internal predecessors, (3251), 791 states have call successors, (791), 274 states have call predecessors, (791), 272 states have return successors, (790), 780 states have call predecessors, (790), 790 states have call successors, (790) [2022-11-18 18:39:45,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3611 states to 3611 states and 4832 transitions. [2022-11-18 18:39:45,311 INFO L78 Accepts]: Start accepts. Automaton has 3611 states and 4832 transitions. Word has length 182 [2022-11-18 18:39:45,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:39:45,312 INFO L495 AbstractCegarLoop]: Abstraction has 3611 states and 4832 transitions. [2022-11-18 18:39:45,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-18 18:39:45,312 INFO L276 IsEmpty]: Start isEmpty. Operand 3611 states and 4832 transitions. [2022-11-18 18:39:45,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-11-18 18:39:45,318 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:39:45,319 INFO L195 NwaCegarLoop]: trace histogram [20, 11, 11, 11, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:39:45,360 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-18 18:39:45,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:39:45,544 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:39:45,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:39:45,545 INFO L85 PathProgramCache]: Analyzing trace with hash 899292299, now seen corresponding path program 1 times [2022-11-18 18:39:45,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:39:45,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1769395018] [2022-11-18 18:39:45,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:39:45,546 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:39:45,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:39:45,547 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:39:45,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-18 18:39:47,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:39:47,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 1895 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 18:39:47,772 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:39:47,826 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 413 trivial. 0 not checked. [2022-11-18 18:39:47,826 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:39:47,827 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:39:47,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1769395018] [2022-11-18 18:39:47,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1769395018] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:39:47,827 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:39:47,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 18:39:47,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886675973] [2022-11-18 18:39:47,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:39:47,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 18:39:47,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:39:47,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:39:47,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:39:47,830 INFO L87 Difference]: Start difference. First operand 3611 states and 4832 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-18 18:39:49,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:39:49,082 INFO L93 Difference]: Finished difference Result 7162 states and 9592 transitions. [2022-11-18 18:39:49,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 18:39:49,083 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 199 [2022-11-18 18:39:49,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:39:49,105 INFO L225 Difference]: With dead ends: 7162 [2022-11-18 18:39:49,105 INFO L226 Difference]: Without dead ends: 3611 [2022-11-18 18:39:49,119 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 18:39:49,120 INFO L413 NwaCegarLoop]: 2099 mSDtfsCounter, 1 mSDsluCounter, 4190 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 6289 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:39:49,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 6289 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-18 18:39:49,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3611 states. [2022-11-18 18:39:49,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3611 to 3611. [2022-11-18 18:39:49,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3611 states, 2547 states have (on average 1.2732626619552414) internal successors, (3243), 2602 states have internal predecessors, (3243), 791 states have call successors, (791), 274 states have call predecessors, (791), 272 states have return successors, (790), 780 states have call predecessors, (790), 790 states have call successors, (790) [2022-11-18 18:39:49,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3611 states to 3611 states and 4824 transitions. [2022-11-18 18:39:49,330 INFO L78 Accepts]: Start accepts. Automaton has 3611 states and 4824 transitions. Word has length 199 [2022-11-18 18:39:49,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:39:49,330 INFO L495 AbstractCegarLoop]: Abstraction has 3611 states and 4824 transitions. [2022-11-18 18:39:49,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-18 18:39:49,332 INFO L276 IsEmpty]: Start isEmpty. Operand 3611 states and 4824 transitions. [2022-11-18 18:39:49,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-11-18 18:39:49,339 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:39:49,339 INFO L195 NwaCegarLoop]: trace histogram [20, 11, 11, 11, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:39:49,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-18 18:39:49,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:39:49,555 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:39:49,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:39:49,556 INFO L85 PathProgramCache]: Analyzing trace with hash -1388549405, now seen corresponding path program 1 times [2022-11-18 18:39:49,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:39:49,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2003622938] [2022-11-18 18:39:49,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:39:49,558 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:39:49,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:39:49,560 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:39:49,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-18 18:39:51,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:39:51,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 1925 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 18:39:51,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:39:51,992 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 413 trivial. 0 not checked. [2022-11-18 18:39:51,992 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:39:51,992 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:39:51,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2003622938] [2022-11-18 18:39:51,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2003622938] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:39:51,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:39:51,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:39:51,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122061332] [2022-11-18 18:39:51,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:39:51,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:39:51,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:39:51,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:39:51,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:39:51,996 INFO L87 Difference]: Start difference. First operand 3611 states and 4824 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-18 18:39:53,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:39:53,238 INFO L93 Difference]: Finished difference Result 9407 states and 12569 transitions. [2022-11-18 18:39:53,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:39:53,239 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 206 [2022-11-18 18:39:53,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:39:53,276 INFO L225 Difference]: With dead ends: 9407 [2022-11-18 18:39:53,276 INFO L226 Difference]: Without dead ends: 5864 [2022-11-18 18:39:53,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:39:53,294 INFO L413 NwaCegarLoop]: 3396 mSDtfsCounter, 1958 mSDsluCounter, 1962 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1958 SdHoareTripleChecker+Valid, 5358 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-18 18:39:53,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1958 Valid, 5358 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-18 18:39:53,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5864 states. [2022-11-18 18:39:53,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5864 to 5842. [2022-11-18 18:39:53,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5842 states, 4122 states have (on average 1.271955361475012) internal successors, (5243), 4209 states have internal predecessors, (5243), 1271 states have call successors, (1271), 450 states have call predecessors, (1271), 448 states have return successors, (1270), 1259 states have call predecessors, (1270), 1270 states have call successors, (1270) [2022-11-18 18:39:53,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5842 states to 5842 states and 7784 transitions. [2022-11-18 18:39:53,616 INFO L78 Accepts]: Start accepts. Automaton has 5842 states and 7784 transitions. Word has length 206 [2022-11-18 18:39:53,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:39:53,617 INFO L495 AbstractCegarLoop]: Abstraction has 5842 states and 7784 transitions. [2022-11-18 18:39:53,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-18 18:39:53,617 INFO L276 IsEmpty]: Start isEmpty. Operand 5842 states and 7784 transitions. [2022-11-18 18:39:53,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-11-18 18:39:53,626 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:39:53,627 INFO L195 NwaCegarLoop]: trace histogram [20, 11, 11, 11, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:39:53,672 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-18 18:39:53,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:39:53,851 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:39:53,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:39:53,852 INFO L85 PathProgramCache]: Analyzing trace with hash -557601505, now seen corresponding path program 1 times [2022-11-18 18:39:53,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:39:53,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1045444353] [2022-11-18 18:39:53,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:39:53,854 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:39:53,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:39:53,855 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:39:53,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-18 18:39:56,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:39:56,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 1924 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 18:39:56,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:39:56,333 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2022-11-18 18:39:56,333 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:39:56,334 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:39:56,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1045444353] [2022-11-18 18:39:56,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1045444353] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:39:56,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:39:56,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:39:56,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961428417] [2022-11-18 18:39:56,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:39:56,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:39:56,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:39:56,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:39:56,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:39:56,336 INFO L87 Difference]: Start difference. First operand 5842 states and 7784 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-18 18:39:56,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:39:56,711 INFO L93 Difference]: Finished difference Result 11668 states and 15568 transitions. [2022-11-18 18:39:56,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:39:56,712 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 205 [2022-11-18 18:39:56,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:39:56,765 INFO L225 Difference]: With dead ends: 11668 [2022-11-18 18:39:56,766 INFO L226 Difference]: Without dead ends: 5894 [2022-11-18 18:39:56,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:39:56,785 INFO L413 NwaCegarLoop]: 2090 mSDtfsCounter, 227 mSDsluCounter, 1769 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 3859 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:39:56,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [307 Valid, 3859 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:39:56,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5894 states. [2022-11-18 18:39:57,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5894 to 5882. [2022-11-18 18:39:57,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5882 states, 4162 states have (on average 1.2693416626621816) internal successors, (5283), 4249 states have internal predecessors, (5283), 1271 states have call successors, (1271), 450 states have call predecessors, (1271), 448 states have return successors, (1270), 1259 states have call predecessors, (1270), 1270 states have call successors, (1270) [2022-11-18 18:39:57,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5882 states to 5882 states and 7824 transitions. [2022-11-18 18:39:57,145 INFO L78 Accepts]: Start accepts. Automaton has 5882 states and 7824 transitions. Word has length 205 [2022-11-18 18:39:57,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:39:57,147 INFO L495 AbstractCegarLoop]: Abstraction has 5882 states and 7824 transitions. [2022-11-18 18:39:57,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-18 18:39:57,147 INFO L276 IsEmpty]: Start isEmpty. Operand 5882 states and 7824 transitions. [2022-11-18 18:39:57,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-11-18 18:39:57,153 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:39:57,153 INFO L195 NwaCegarLoop]: trace histogram [20, 11, 11, 11, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:39:57,196 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-18 18:39:57,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:39:57,375 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:39:57,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:39:57,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1784073255, now seen corresponding path program 1 times [2022-11-18 18:39:57,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:39:57,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1960426416] [2022-11-18 18:39:57,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:39:57,379 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:39:57,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:39:57,380 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:39:57,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-18 18:40:00,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:40:00,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 1924 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-18 18:40:00,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:40:01,333 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 487 trivial. 0 not checked. [2022-11-18 18:40:01,333 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:40:01,334 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:40:01,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1960426416] [2022-11-18 18:40:01,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1960426416] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:40:01,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:40:01,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 18:40:01,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289666887] [2022-11-18 18:40:01,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:40:01,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 18:40:01,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:40:01,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 18:40:01,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-18 18:40:01,336 INFO L87 Difference]: Start difference. First operand 5882 states and 7824 transitions. Second operand has 12 states, 10 states have (on average 10.2) internal successors, (102), 9 states have internal predecessors, (102), 4 states have call successors, (24), 2 states have call predecessors, (24), 5 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) [2022-11-18 18:40:05,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:40:05,690 INFO L93 Difference]: Finished difference Result 13530 states and 18430 transitions. [2022-11-18 18:40:05,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-18 18:40:05,692 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 10.2) internal successors, (102), 9 states have internal predecessors, (102), 4 states have call successors, (24), 2 states have call predecessors, (24), 5 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) Word has length 205 [2022-11-18 18:40:05,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:40:05,737 INFO L225 Difference]: With dead ends: 13530 [2022-11-18 18:40:05,737 INFO L226 Difference]: Without dead ends: 7716 [2022-11-18 18:40:05,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2022-11-18 18:40:05,759 INFO L413 NwaCegarLoop]: 2282 mSDtfsCounter, 816 mSDsluCounter, 22608 mSDsCounter, 0 mSdLazyCounter, 622 mSolverCounterSat, 234 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 894 SdHoareTripleChecker+Valid, 24890 SdHoareTripleChecker+Invalid, 856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 234 IncrementalHoareTripleChecker+Valid, 622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-18 18:40:05,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [894 Valid, 24890 Invalid, 856 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [234 Valid, 622 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-11-18 18:40:05,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7716 states. [2022-11-18 18:40:06,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7716 to 5910. [2022-11-18 18:40:06,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5910 states, 4182 states have (on average 1.26805356288857) internal successors, (5303), 4269 states have internal predecessors, (5303), 1275 states have call successors, (1275), 450 states have call predecessors, (1275), 452 states have return successors, (1302), 1267 states have call predecessors, (1302), 1274 states have call successors, (1302) [2022-11-18 18:40:06,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5910 states to 5910 states and 7880 transitions. [2022-11-18 18:40:06,285 INFO L78 Accepts]: Start accepts. Automaton has 5910 states and 7880 transitions. Word has length 205 [2022-11-18 18:40:06,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:40:06,288 INFO L495 AbstractCegarLoop]: Abstraction has 5910 states and 7880 transitions. [2022-11-18 18:40:06,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 10.2) internal successors, (102), 9 states have internal predecessors, (102), 4 states have call successors, (24), 2 states have call predecessors, (24), 5 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) [2022-11-18 18:40:06,289 INFO L276 IsEmpty]: Start isEmpty. Operand 5910 states and 7880 transitions. [2022-11-18 18:40:06,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-11-18 18:40:06,296 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:40:06,296 INFO L195 NwaCegarLoop]: trace histogram [20, 11, 11, 11, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:40:06,350 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-18 18:40:06,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:40:06,511 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:40:06,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:40:06,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1675986296, now seen corresponding path program 1 times [2022-11-18 18:40:06,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:40:06,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [82767224] [2022-11-18 18:40:06,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:40:06,514 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:40:06,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:40:06,515 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:40:06,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-18 18:40:09,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:40:09,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 1926 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 18:40:09,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:40:09,509 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 489 trivial. 0 not checked. [2022-11-18 18:40:09,509 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:40:09,509 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:40:09,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [82767224] [2022-11-18 18:40:09,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [82767224] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:40:09,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:40:09,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:40:09,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490459964] [2022-11-18 18:40:09,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:40:09,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:40:09,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:40:09,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:40:09,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:40:09,513 INFO L87 Difference]: Start difference. First operand 5910 states and 7880 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-18 18:40:09,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:40:09,956 INFO L93 Difference]: Finished difference Result 12664 states and 17100 transitions. [2022-11-18 18:40:09,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:40:09,956 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 206 [2022-11-18 18:40:09,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:40:09,991 INFO L225 Difference]: With dead ends: 12664 [2022-11-18 18:40:09,991 INFO L226 Difference]: Without dead ends: 6822 [2022-11-18 18:40:10,011 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:40:10,012 INFO L413 NwaCegarLoop]: 2251 mSDtfsCounter, 199 mSDsluCounter, 2114 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 4365 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:40:10,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 4365 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:40:10,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6822 states. [2022-11-18 18:40:10,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6822 to 5914. [2022-11-18 18:40:10,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5914 states, 4186 states have (on average 1.267797419971333) internal successors, (5307), 4273 states have internal predecessors, (5307), 1275 states have call successors, (1275), 450 states have call predecessors, (1275), 452 states have return successors, (1302), 1267 states have call predecessors, (1302), 1274 states have call successors, (1302) [2022-11-18 18:40:10,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5914 states to 5914 states and 7884 transitions. [2022-11-18 18:40:10,501 INFO L78 Accepts]: Start accepts. Automaton has 5914 states and 7884 transitions. Word has length 206 [2022-11-18 18:40:10,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:40:10,502 INFO L495 AbstractCegarLoop]: Abstraction has 5914 states and 7884 transitions. [2022-11-18 18:40:10,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-18 18:40:10,503 INFO L276 IsEmpty]: Start isEmpty. Operand 5914 states and 7884 transitions. [2022-11-18 18:40:10,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-11-18 18:40:10,513 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:40:10,514 INFO L195 NwaCegarLoop]: trace histogram [20, 11, 11, 11, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:40:10,568 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-18 18:40:10,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:40:10,728 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:40:10,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:40:10,728 INFO L85 PathProgramCache]: Analyzing trace with hash -1643827990, now seen corresponding path program 1 times [2022-11-18 18:40:10,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:40:10,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [742787634] [2022-11-18 18:40:10,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:40:10,731 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:40:10,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:40:10,732 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:40:10,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-18 18:40:13,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:40:13,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 1967 conjuncts, 41 conjunts are in the unsatisfiable core [2022-11-18 18:40:13,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:40:15,793 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 497 trivial. 0 not checked. [2022-11-18 18:40:15,793 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:40:15,793 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:40:15,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [742787634] [2022-11-18 18:40:15,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [742787634] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:40:15,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:40:15,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-18 18:40:15,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664469403] [2022-11-18 18:40:15,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:40:15,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-18 18:40:15,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:40:15,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-18 18:40:15,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=239, Unknown=0, NotChecked=0, Total=272 [2022-11-18 18:40:15,796 INFO L87 Difference]: Start difference. First operand 5914 states and 7884 transitions. Second operand has 17 states, 13 states have (on average 8.384615384615385) internal successors, (109), 12 states have internal predecessors, (109), 6 states have call successors, (27), 2 states have call predecessors, (27), 6 states have return successors, (24), 8 states have call predecessors, (24), 6 states have call successors, (24) [2022-11-18 18:40:21,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:40:21,702 INFO L93 Difference]: Finished difference Result 11772 states and 15712 transitions. [2022-11-18 18:40:21,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-18 18:40:21,703 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 13 states have (on average 8.384615384615385) internal successors, (109), 12 states have internal predecessors, (109), 6 states have call successors, (27), 2 states have call predecessors, (27), 6 states have return successors, (24), 8 states have call predecessors, (24), 6 states have call successors, (24) Word has length 225 [2022-11-18 18:40:21,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:40:21,728 INFO L225 Difference]: With dead ends: 11772 [2022-11-18 18:40:21,728 INFO L226 Difference]: Without dead ends: 5926 [2022-11-18 18:40:21,744 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2022-11-18 18:40:21,745 INFO L413 NwaCegarLoop]: 2059 mSDtfsCounter, 618 mSDsluCounter, 29851 mSDsCounter, 0 mSdLazyCounter, 1002 mSolverCounterSat, 231 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 621 SdHoareTripleChecker+Valid, 31910 SdHoareTripleChecker+Invalid, 1233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 231 IncrementalHoareTripleChecker+Valid, 1002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-11-18 18:40:21,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [621 Valid, 31910 Invalid, 1233 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [231 Valid, 1002 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-11-18 18:40:21,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5926 states. [2022-11-18 18:40:22,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5926 to 5872. [2022-11-18 18:40:22,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5872 states, 4158 states have (on average 1.2686387686387686) internal successors, (5275), 4245 states have internal predecessors, (5275), 1267 states have call successors, (1267), 448 states have call predecessors, (1267), 446 states have return successors, (1266), 1255 states have call predecessors, (1266), 1266 states have call successors, (1266) [2022-11-18 18:40:22,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5872 states to 5872 states and 7808 transitions. [2022-11-18 18:40:22,136 INFO L78 Accepts]: Start accepts. Automaton has 5872 states and 7808 transitions. Word has length 225 [2022-11-18 18:40:22,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:40:22,137 INFO L495 AbstractCegarLoop]: Abstraction has 5872 states and 7808 transitions. [2022-11-18 18:40:22,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 13 states have (on average 8.384615384615385) internal successors, (109), 12 states have internal predecessors, (109), 6 states have call successors, (27), 2 states have call predecessors, (27), 6 states have return successors, (24), 8 states have call predecessors, (24), 6 states have call successors, (24) [2022-11-18 18:40:22,137 INFO L276 IsEmpty]: Start isEmpty. Operand 5872 states and 7808 transitions. [2022-11-18 18:40:22,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-11-18 18:40:22,146 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:40:22,146 INFO L195 NwaCegarLoop]: trace histogram [20, 11, 11, 11, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:40:22,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-11-18 18:40:22,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:40:22,371 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:40:22,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:40:22,372 INFO L85 PathProgramCache]: Analyzing trace with hash -222099760, now seen corresponding path program 1 times [2022-11-18 18:40:22,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:40:22,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [122246073] [2022-11-18 18:40:22,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:40:22,374 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:40:22,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:40:22,375 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:40:22,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-18 18:40:25,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:40:25,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 1956 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 18:40:25,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:40:25,542 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 489 trivial. 0 not checked. [2022-11-18 18:40:25,543 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:40:25,543 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:40:25,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [122246073] [2022-11-18 18:40:25,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [122246073] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:40:25,543 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:40:25,543 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 18:40:25,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647495482] [2022-11-18 18:40:25,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:40:25,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 18:40:25,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:40:25,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:40:25,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:40:25,545 INFO L87 Difference]: Start difference. First operand 5872 states and 7808 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2022-11-18 18:40:26,826 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:40:27,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:40:27,751 INFO L93 Difference]: Finished difference Result 11880 states and 15848 transitions. [2022-11-18 18:40:27,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 18:40:27,752 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 213 [2022-11-18 18:40:27,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:40:27,777 INFO L225 Difference]: With dead ends: 11880 [2022-11-18 18:40:27,777 INFO L226 Difference]: Without dead ends: 6076 [2022-11-18 18:40:27,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 18:40:27,797 INFO L413 NwaCegarLoop]: 2117 mSDtfsCounter, 79 mSDsluCounter, 4141 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 6258 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-18 18:40:27,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 6258 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-18 18:40:27,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6076 states. [2022-11-18 18:40:28,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6076 to 5880. [2022-11-18 18:40:28,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5880 states, 4166 states have (on average 1.2681228996639462) internal successors, (5283), 4253 states have internal predecessors, (5283), 1267 states have call successors, (1267), 448 states have call predecessors, (1267), 446 states have return successors, (1266), 1255 states have call predecessors, (1266), 1266 states have call successors, (1266) [2022-11-18 18:40:28,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5880 states to 5880 states and 7816 transitions. [2022-11-18 18:40:28,326 INFO L78 Accepts]: Start accepts. Automaton has 5880 states and 7816 transitions. Word has length 213 [2022-11-18 18:40:28,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:40:28,327 INFO L495 AbstractCegarLoop]: Abstraction has 5880 states and 7816 transitions. [2022-11-18 18:40:28,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2022-11-18 18:40:28,327 INFO L276 IsEmpty]: Start isEmpty. Operand 5880 states and 7816 transitions. [2022-11-18 18:40:28,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-11-18 18:40:28,335 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:40:28,336 INFO L195 NwaCegarLoop]: trace histogram [20, 11, 11, 11, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:40:28,387 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-11-18 18:40:28,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:40:28,551 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:40:28,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:40:28,552 INFO L85 PathProgramCache]: Analyzing trace with hash 237527887, now seen corresponding path program 1 times [2022-11-18 18:40:28,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:40:28,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [968317464] [2022-11-18 18:40:28,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:40:28,554 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:40:28,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:40:28,555 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:40:28,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-18 18:40:31,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:40:31,789 INFO L263 TraceCheckSpWp]: Trace formula consists of 1960 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 18:40:31,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:40:31,837 INFO L134 CoverageAnalysis]: Checked inductivity of 490 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 489 trivial. 0 not checked. [2022-11-18 18:40:31,837 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:40:31,838 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:40:31,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [968317464] [2022-11-18 18:40:31,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [968317464] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:40:31,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:40:31,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:40:31,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805627131] [2022-11-18 18:40:31,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:40:31,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:40:31,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:40:31,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:40:31,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:40:31,842 INFO L87 Difference]: Start difference. First operand 5880 states and 7816 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-18 18:40:32,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:40:32,340 INFO L93 Difference]: Finished difference Result 11696 states and 15566 transitions. [2022-11-18 18:40:32,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:40:32,341 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 214 [2022-11-18 18:40:32,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:40:32,366 INFO L225 Difference]: With dead ends: 11696 [2022-11-18 18:40:32,367 INFO L226 Difference]: Without dead ends: 5884 [2022-11-18 18:40:32,387 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:40:32,387 INFO L413 NwaCegarLoop]: 2093 mSDtfsCounter, 0 mSDsluCounter, 2088 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4181 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:40:32,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4181 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:40:32,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5884 states. [2022-11-18 18:40:32,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5884 to 5884. [2022-11-18 18:40:32,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5884 states, 4170 states have (on average 1.2678657074340527) internal successors, (5287), 4257 states have internal predecessors, (5287), 1267 states have call successors, (1267), 448 states have call predecessors, (1267), 446 states have return successors, (1266), 1255 states have call predecessors, (1266), 1266 states have call successors, (1266) [2022-11-18 18:40:32,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5884 states to 5884 states and 7820 transitions. [2022-11-18 18:40:32,852 INFO L78 Accepts]: Start accepts. Automaton has 5884 states and 7820 transitions. Word has length 214 [2022-11-18 18:40:32,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:40:32,853 INFO L495 AbstractCegarLoop]: Abstraction has 5884 states and 7820 transitions. [2022-11-18 18:40:32,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-18 18:40:32,854 INFO L276 IsEmpty]: Start isEmpty. Operand 5884 states and 7820 transitions. [2022-11-18 18:40:32,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-11-18 18:40:32,861 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:40:32,861 INFO L195 NwaCegarLoop]: trace histogram [20, 11, 11, 11, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:40:32,915 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-11-18 18:40:33,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:40:33,087 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:40:33,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:40:33,088 INFO L85 PathProgramCache]: Analyzing trace with hash -1042335791, now seen corresponding path program 1 times [2022-11-18 18:40:33,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:40:33,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1732613380] [2022-11-18 18:40:33,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:40:33,090 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:40:33,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:40:33,092 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:40:33,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-11-18 18:40:36,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:40:36,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 1964 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 18:40:36,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:40:36,240 INFO L134 CoverageAnalysis]: Checked inductivity of 490 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 489 trivial. 0 not checked. [2022-11-18 18:40:36,240 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:40:36,394 INFO L134 CoverageAnalysis]: Checked inductivity of 490 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 489 trivial. 0 not checked. [2022-11-18 18:40:36,395 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:40:36,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1732613380] [2022-11-18 18:40:36,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1732613380] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:40:36,395 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 18:40:36,396 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-11-18 18:40:36,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244430606] [2022-11-18 18:40:36,396 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 18:40:36,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:40:36,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:40:36,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:40:36,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:40:36,398 INFO L87 Difference]: Start difference. First operand 5884 states and 7820 transitions. Second operand has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 4 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2022-11-18 18:40:37,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:40:37,654 INFO L93 Difference]: Finished difference Result 12604 states and 16922 transitions. [2022-11-18 18:40:37,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 18:40:37,655 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 4 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) Word has length 214 [2022-11-18 18:40:37,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:40:37,687 INFO L225 Difference]: With dead ends: 12604 [2022-11-18 18:40:37,688 INFO L226 Difference]: Without dead ends: 6788 [2022-11-18 18:40:37,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 427 GetRequests, 422 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2022-11-18 18:40:37,705 INFO L413 NwaCegarLoop]: 2238 mSDtfsCounter, 313 mSDsluCounter, 4323 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 6561 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-18 18:40:37,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [369 Valid, 6561 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-18 18:40:37,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6788 states. [2022-11-18 18:40:38,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6788 to 5944. [2022-11-18 18:40:38,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5944 states, 4218 states have (on average 1.2705073494547179) internal successors, (5359), 4305 states have internal predecessors, (5359), 1279 states have call successors, (1279), 448 states have call predecessors, (1279), 446 states have return successors, (1278), 1267 states have call predecessors, (1278), 1278 states have call successors, (1278) [2022-11-18 18:40:38,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5944 states to 5944 states and 7916 transitions. [2022-11-18 18:40:38,194 INFO L78 Accepts]: Start accepts. Automaton has 5944 states and 7916 transitions. Word has length 214 [2022-11-18 18:40:38,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:40:38,196 INFO L495 AbstractCegarLoop]: Abstraction has 5944 states and 7916 transitions. [2022-11-18 18:40:38,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 4 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2022-11-18 18:40:38,197 INFO L276 IsEmpty]: Start isEmpty. Operand 5944 states and 7916 transitions. [2022-11-18 18:40:38,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2022-11-18 18:40:38,244 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:40:38,245 INFO L195 NwaCegarLoop]: trace histogram [20, 11, 11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:40:38,298 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-11-18 18:40:38,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:40:38,467 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:40:38,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:40:38,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1399236180, now seen corresponding path program 2 times [2022-11-18 18:40:38,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:40:38,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1979645308] [2022-11-18 18:40:38,471 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 18:40:38,471 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:40:38,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:40:38,472 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:40:38,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-11-18 18:40:39,952 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 18:40:39,952 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:40:39,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 1021 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 18:40:40,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:40:41,311 INFO L134 CoverageAnalysis]: Checked inductivity of 541 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 541 trivial. 0 not checked. [2022-11-18 18:40:41,311 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:40:41,312 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:40:41,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1979645308] [2022-11-18 18:40:41,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1979645308] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:40:41,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:40:41,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:40:41,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372124493] [2022-11-18 18:40:41,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:40:41,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:40:41,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:40:41,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:40:41,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:40:41,315 INFO L87 Difference]: Start difference. First operand 5944 states and 7916 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2022-11-18 18:40:41,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:40:41,738 INFO L93 Difference]: Finished difference Result 10486 states and 13983 transitions. [2022-11-18 18:40:41,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:40:41,739 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 238 [2022-11-18 18:40:41,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:40:41,776 INFO L225 Difference]: With dead ends: 10486 [2022-11-18 18:40:41,776 INFO L226 Difference]: Without dead ends: 10483 [2022-11-18 18:40:41,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:40:41,781 INFO L413 NwaCegarLoop]: 2534 mSDtfsCounter, 1602 mSDsluCounter, 1971 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1602 SdHoareTripleChecker+Valid, 4505 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:40:41,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1602 Valid, 4505 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:40:41,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10483 states. [2022-11-18 18:40:42,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10483 to 10415. [2022-11-18 18:40:42,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10415 states, 7498 states have (on average 1.281141637770072) internal successors, (9606), 7654 states have internal predecessors, (9606), 2118 states have call successors, (2118), 801 states have call predecessors, (2118), 798 states have return successors, (2150), 2088 states have call predecessors, (2150), 2117 states have call successors, (2150) [2022-11-18 18:40:42,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10415 states to 10415 states and 13874 transitions. [2022-11-18 18:40:42,825 INFO L78 Accepts]: Start accepts. Automaton has 10415 states and 13874 transitions. Word has length 238 [2022-11-18 18:40:42,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:40:42,825 INFO L495 AbstractCegarLoop]: Abstraction has 10415 states and 13874 transitions. [2022-11-18 18:40:42,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2022-11-18 18:40:42,826 INFO L276 IsEmpty]: Start isEmpty. Operand 10415 states and 13874 transitions. [2022-11-18 18:40:42,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-11-18 18:40:42,838 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:40:42,839 INFO L195 NwaCegarLoop]: trace histogram [20, 12, 12, 12, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:40:42,867 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-11-18 18:40:43,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:40:43,055 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:40:43,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:40:43,056 INFO L85 PathProgramCache]: Analyzing trace with hash -2062563261, now seen corresponding path program 1 times [2022-11-18 18:40:43,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:40:43,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1640493501] [2022-11-18 18:40:43,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:40:43,057 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:40:43,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:40:43,059 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:40:43,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-11-18 18:40:45,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:40:45,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 1787 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-18 18:40:45,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:40:46,059 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 506 trivial. 0 not checked. [2022-11-18 18:40:46,059 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:40:46,059 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:40:46,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1640493501] [2022-11-18 18:40:46,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1640493501] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:40:46,060 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:40:46,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 18:40:46,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000685629] [2022-11-18 18:40:46,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:40:46,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 18:40:46,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:40:46,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 18:40:46,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-18 18:40:46,063 INFO L87 Difference]: Start difference. First operand 10415 states and 13874 transitions. Second operand has 12 states, 10 states have (on average 13.6) internal successors, (136), 9 states have internal predecessors, (136), 4 states have call successors, (35), 2 states have call predecessors, (35), 5 states have return successors, (32), 5 states have call predecessors, (32), 4 states have call successors, (32) [2022-11-18 18:40:51,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:40:51,297 INFO L93 Difference]: Finished difference Result 23378 states and 31753 transitions. [2022-11-18 18:40:51,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 18:40:51,298 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 13.6) internal successors, (136), 9 states have internal predecessors, (136), 4 states have call successors, (35), 2 states have call predecessors, (35), 5 states have return successors, (32), 5 states have call predecessors, (32), 4 states have call successors, (32) Word has length 274 [2022-11-18 18:40:51,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:40:51,353 INFO L225 Difference]: With dead ends: 23378 [2022-11-18 18:40:51,354 INFO L226 Difference]: Without dead ends: 13031 [2022-11-18 18:40:51,379 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2022-11-18 18:40:51,380 INFO L413 NwaCegarLoop]: 2725 mSDtfsCounter, 1400 mSDsluCounter, 25472 mSDsCounter, 0 mSdLazyCounter, 775 mSolverCounterSat, 398 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1401 SdHoareTripleChecker+Valid, 28197 SdHoareTripleChecker+Invalid, 1173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 398 IncrementalHoareTripleChecker+Valid, 775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-18 18:40:51,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1401 Valid, 28197 Invalid, 1173 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [398 Valid, 775 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-11-18 18:40:51,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13031 states. [2022-11-18 18:40:52,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13031 to 10431. [2022-11-18 18:40:52,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10431 states, 7510 states have (on average 1.2806924101198403) internal successors, (9618), 7666 states have internal predecessors, (9618), 2122 states have call successors, (2122), 801 states have call predecessors, (2122), 798 states have return successors, (2154), 2092 states have call predecessors, (2154), 2121 states have call successors, (2154) [2022-11-18 18:40:52,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10431 states to 10431 states and 13894 transitions. [2022-11-18 18:40:52,324 INFO L78 Accepts]: Start accepts. Automaton has 10431 states and 13894 transitions. Word has length 274 [2022-11-18 18:40:52,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:40:52,324 INFO L495 AbstractCegarLoop]: Abstraction has 10431 states and 13894 transitions. [2022-11-18 18:40:52,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 13.6) internal successors, (136), 9 states have internal predecessors, (136), 4 states have call successors, (35), 2 states have call predecessors, (35), 5 states have return successors, (32), 5 states have call predecessors, (32), 4 states have call successors, (32) [2022-11-18 18:40:52,325 INFO L276 IsEmpty]: Start isEmpty. Operand 10431 states and 13894 transitions. [2022-11-18 18:40:52,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2022-11-18 18:40:52,345 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:40:52,346 INFO L195 NwaCegarLoop]: trace histogram [20, 12, 12, 12, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:40:52,392 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-11-18 18:40:52,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:40:52,559 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:40:52,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:40:52,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1349736490, now seen corresponding path program 1 times [2022-11-18 18:40:52,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:40:52,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2106511840] [2022-11-18 18:40:52,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:40:52,562 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:40:52,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:40:52,563 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:40:52,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-11-18 18:40:54,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:40:54,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 2005 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-18 18:40:54,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:40:55,121 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 518 trivial. 0 not checked. [2022-11-18 18:40:55,121 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:40:55,121 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:40:55,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2106511840] [2022-11-18 18:40:55,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2106511840] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:40:55,121 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:40:55,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 18:40:55,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872004233] [2022-11-18 18:40:55,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:40:55,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:40:55,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:40:55,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:40:55,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:40:55,124 INFO L87 Difference]: Start difference. First operand 10431 states and 13894 transitions. Second operand has 6 states, 6 states have (on average 24.5) internal successors, (147), 5 states have internal predecessors, (147), 2 states have call successors, (38), 2 states have call predecessors, (38), 3 states have return successors, (35), 3 states have call predecessors, (35), 2 states have call successors, (35) [2022-11-18 18:40:57,633 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:40:59,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:40:59,175 INFO L93 Difference]: Finished difference Result 23448 states and 31885 transitions. [2022-11-18 18:40:59,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 18:40:59,176 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.5) internal successors, (147), 5 states have internal predecessors, (147), 2 states have call successors, (38), 2 states have call predecessors, (38), 3 states have return successors, (35), 3 states have call predecessors, (35), 2 states have call successors, (35) Word has length 295 [2022-11-18 18:40:59,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:40:59,228 INFO L225 Difference]: With dead ends: 23448 [2022-11-18 18:40:59,228 INFO L226 Difference]: Without dead ends: 13085 [2022-11-18 18:40:59,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-18 18:40:59,257 INFO L413 NwaCegarLoop]: 2789 mSDtfsCounter, 939 mSDsluCounter, 9987 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 268 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 939 SdHoareTripleChecker+Valid, 12776 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 268 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-18 18:40:59,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [939 Valid, 12776 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [268 Valid, 36 Invalid, 1 Unknown, 0 Unchecked, 2.7s Time] [2022-11-18 18:40:59,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13085 states. [2022-11-18 18:41:00,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13085 to 10451. [2022-11-18 18:41:00,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10451 states, 7526 states have (on average 1.2800956683497209) internal successors, (9634), 7682 states have internal predecessors, (9634), 2122 states have call successors, (2122), 801 states have call predecessors, (2122), 802 states have return successors, (2186), 2096 states have call predecessors, (2186), 2121 states have call successors, (2186) [2022-11-18 18:41:00,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10451 states to 10451 states and 13942 transitions. [2022-11-18 18:41:00,245 INFO L78 Accepts]: Start accepts. Automaton has 10451 states and 13942 transitions. Word has length 295 [2022-11-18 18:41:00,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:41:00,246 INFO L495 AbstractCegarLoop]: Abstraction has 10451 states and 13942 transitions. [2022-11-18 18:41:00,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.5) internal successors, (147), 5 states have internal predecessors, (147), 2 states have call successors, (38), 2 states have call predecessors, (38), 3 states have return successors, (35), 3 states have call predecessors, (35), 2 states have call successors, (35) [2022-11-18 18:41:00,247 INFO L276 IsEmpty]: Start isEmpty. Operand 10451 states and 13942 transitions. [2022-11-18 18:41:00,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2022-11-18 18:41:00,265 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:41:00,266 INFO L195 NwaCegarLoop]: trace histogram [20, 12, 12, 12, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:41:00,324 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2022-11-18 18:41:00,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:41:00,491 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:41:00,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:41:00,492 INFO L85 PathProgramCache]: Analyzing trace with hash 906735213, now seen corresponding path program 1 times [2022-11-18 18:41:00,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:41:00,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1348994108] [2022-11-18 18:41:00,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:41:00,493 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:41:00,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:41:00,494 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:41:00,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-11-18 18:41:02,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:02,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 2048 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-18 18:41:02,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:41:03,255 INFO L134 CoverageAnalysis]: Checked inductivity of 588 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 518 trivial. 0 not checked. [2022-11-18 18:41:03,255 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:41:03,255 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:41:03,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1348994108] [2022-11-18 18:41:03,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1348994108] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:41:03,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:41:03,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 18:41:03,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210498557] [2022-11-18 18:41:03,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:41:03,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 18:41:03,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:41:03,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 18:41:03,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 18:41:03,257 INFO L87 Difference]: Start difference. First operand 10451 states and 13942 transitions. Second operand has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 6 states have internal predecessors, (157), 2 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (39), 3 states have call predecessors, (39), 2 states have call successors, (39) [2022-11-18 18:41:05,690 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:41:07,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:41:07,910 INFO L93 Difference]: Finished difference Result 26204 states and 36184 transitions. [2022-11-18 18:41:07,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 18:41:07,911 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 6 states have internal predecessors, (157), 2 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (39), 3 states have call predecessors, (39), 2 states have call successors, (39) Word has length 315 [2022-11-18 18:41:07,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:41:07,964 INFO L225 Difference]: With dead ends: 26204 [2022-11-18 18:41:07,964 INFO L226 Difference]: Without dead ends: 15821 [2022-11-18 18:41:07,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 310 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-18 18:41:07,993 INFO L413 NwaCegarLoop]: 2539 mSDtfsCounter, 1477 mSDsluCounter, 12108 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 285 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1615 SdHoareTripleChecker+Valid, 14647 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 285 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-18 18:41:07,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1615 Valid, 14647 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [285 Valid, 45 Invalid, 1 Unknown, 0 Unchecked, 2.8s Time] [2022-11-18 18:41:08,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15821 states. [2022-11-18 18:41:09,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15821 to 10461. [2022-11-18 18:41:09,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10461 states, 7536 states have (on average 1.279723991507431) internal successors, (9644), 7690 states have internal predecessors, (9644), 2122 states have call successors, (2122), 801 states have call predecessors, (2122), 802 states have return successors, (2186), 2098 states have call predecessors, (2186), 2121 states have call successors, (2186) [2022-11-18 18:41:09,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10461 states to 10461 states and 13952 transitions. [2022-11-18 18:41:09,137 INFO L78 Accepts]: Start accepts. Automaton has 10461 states and 13952 transitions. Word has length 315 [2022-11-18 18:41:09,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:41:09,138 INFO L495 AbstractCegarLoop]: Abstraction has 10461 states and 13952 transitions. [2022-11-18 18:41:09,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 6 states have internal predecessors, (157), 2 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (39), 3 states have call predecessors, (39), 2 states have call successors, (39) [2022-11-18 18:41:09,138 INFO L276 IsEmpty]: Start isEmpty. Operand 10461 states and 13952 transitions. [2022-11-18 18:41:09,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2022-11-18 18:41:09,157 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:41:09,157 INFO L195 NwaCegarLoop]: trace histogram [20, 12, 12, 12, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:41:09,208 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2022-11-18 18:41:09,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:41:09,371 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:41:09,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:41:09,372 INFO L85 PathProgramCache]: Analyzing trace with hash -838413328, now seen corresponding path program 1 times [2022-11-18 18:41:09,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:41:09,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1740707969] [2022-11-18 18:41:09,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:41:09,373 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:41:09,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:41:09,374 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:41:09,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-11-18 18:41:11,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:11,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 2091 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-18 18:41:11,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:41:12,245 INFO L134 CoverageAnalysis]: Checked inductivity of 634 backedges. 94 proven. 3 refuted. 0 times theorem prover too weak. 537 trivial. 0 not checked. [2022-11-18 18:41:12,245 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:41:13,440 INFO L134 CoverageAnalysis]: Checked inductivity of 634 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 616 trivial. 0 not checked. [2022-11-18 18:41:13,441 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:41:13,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1740707969] [2022-11-18 18:41:13,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1740707969] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:41:13,441 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 18:41:13,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 16 [2022-11-18 18:41:13,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038523156] [2022-11-18 18:41:13,442 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 18:41:13,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-18 18:41:13,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:41:13,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-18 18:41:13,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-18 18:41:13,444 INFO L87 Difference]: Start difference. First operand 10461 states and 13952 transitions. Second operand has 16 states, 15 states have (on average 12.533333333333333) internal successors, (188), 12 states have internal predecessors, (188), 5 states have call successors, (63), 2 states have call predecessors, (63), 5 states have return successors, (62), 6 states have call predecessors, (62), 5 states have call successors, (62) [2022-11-18 18:41:17,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:41:17,144 INFO L93 Difference]: Finished difference Result 26226 states and 36200 transitions. [2022-11-18 18:41:17,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 18:41:17,145 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 12.533333333333333) internal successors, (188), 12 states have internal predecessors, (188), 5 states have call successors, (63), 2 states have call predecessors, (63), 5 states have return successors, (62), 6 states have call predecessors, (62), 5 states have call successors, (62) Word has length 335 [2022-11-18 18:41:17,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:41:17,196 INFO L225 Difference]: With dead ends: 26226 [2022-11-18 18:41:17,197 INFO L226 Difference]: Without dead ends: 15833 [2022-11-18 18:41:17,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 672 GetRequests, 655 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-11-18 18:41:17,323 INFO L413 NwaCegarLoop]: 3029 mSDtfsCounter, 1499 mSDsluCounter, 31286 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 294 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1636 SdHoareTripleChecker+Valid, 34315 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 294 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-18 18:41:17,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1636 Valid, 34315 Invalid, 475 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [294 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-18 18:41:17,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15833 states. [2022-11-18 18:41:18,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15833 to 10461. [2022-11-18 18:41:18,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10461 states, 7536 states have (on average 1.2791932059447984) internal successors, (9640), 7690 states have internal predecessors, (9640), 2122 states have call successors, (2122), 801 states have call predecessors, (2122), 802 states have return successors, (2186), 2098 states have call predecessors, (2186), 2121 states have call successors, (2186) [2022-11-18 18:41:18,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10461 states to 10461 states and 13948 transitions. [2022-11-18 18:41:18,390 INFO L78 Accepts]: Start accepts. Automaton has 10461 states and 13948 transitions. Word has length 335 [2022-11-18 18:41:18,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:41:18,391 INFO L495 AbstractCegarLoop]: Abstraction has 10461 states and 13948 transitions. [2022-11-18 18:41:18,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 12.533333333333333) internal successors, (188), 12 states have internal predecessors, (188), 5 states have call successors, (63), 2 states have call predecessors, (63), 5 states have return successors, (62), 6 states have call predecessors, (62), 5 states have call successors, (62) [2022-11-18 18:41:18,391 INFO L276 IsEmpty]: Start isEmpty. Operand 10461 states and 13948 transitions. [2022-11-18 18:41:18,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2022-11-18 18:41:18,406 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:41:18,407 INFO L195 NwaCegarLoop]: trace histogram [20, 12, 12, 12, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:41:18,451 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2022-11-18 18:41:18,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:41:18,631 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:41:18,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:41:18,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1711004083, now seen corresponding path program 1 times [2022-11-18 18:41:18,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:41:18,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2094149113] [2022-11-18 18:41:18,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:41:18,633 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:41:18,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:41:18,634 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:41:18,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2022-11-18 18:41:20,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:20,881 INFO L263 TraceCheckSpWp]: Trace formula consists of 1925 conjuncts, 26 conjunts are in the unsatisfiable core [2022-11-18 18:41:20,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:41:22,000 INFO L134 CoverageAnalysis]: Checked inductivity of 588 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 516 trivial. 0 not checked. [2022-11-18 18:41:22,000 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:41:22,001 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:41:22,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2094149113] [2022-11-18 18:41:22,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2094149113] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:41:22,001 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:41:22,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-18 18:41:22,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410585716] [2022-11-18 18:41:22,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:41:22,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 18:41:22,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:41:22,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 18:41:22,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2022-11-18 18:41:22,004 INFO L87 Difference]: Start difference. First operand 10461 states and 13948 transitions. Second operand has 13 states, 11 states have (on average 14.727272727272727) internal successors, (162), 10 states have internal predecessors, (162), 5 states have call successors, (43), 2 states have call predecessors, (43), 5 states have return successors, (40), 6 states have call predecessors, (40), 5 states have call successors, (40) [2022-11-18 18:41:27,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:41:27,554 INFO L93 Difference]: Finished difference Result 23984 states and 32678 transitions. [2022-11-18 18:41:27,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-18 18:41:27,556 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 14.727272727272727) internal successors, (162), 10 states have internal predecessors, (162), 5 states have call successors, (43), 2 states have call predecessors, (43), 5 states have return successors, (40), 6 states have call predecessors, (40), 5 states have call successors, (40) Word has length 321 [2022-11-18 18:41:27,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:41:27,596 INFO L225 Difference]: With dead ends: 23984 [2022-11-18 18:41:27,596 INFO L226 Difference]: Without dead ends: 13591 [2022-11-18 18:41:27,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 310 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=61, Invalid=319, Unknown=0, NotChecked=0, Total=380 [2022-11-18 18:41:27,619 INFO L413 NwaCegarLoop]: 2357 mSDtfsCounter, 1051 mSDsluCounter, 25356 mSDsCounter, 0 mSdLazyCounter, 898 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1195 SdHoareTripleChecker+Valid, 27713 SdHoareTripleChecker+Invalid, 965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 898 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-18 18:41:27,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1195 Valid, 27713 Invalid, 965 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [67 Valid, 898 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-11-18 18:41:27,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13591 states. [2022-11-18 18:41:28,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13591 to 10461. [2022-11-18 18:41:28,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10461 states, 7536 states have (on average 1.2791932059447984) internal successors, (9640), 7690 states have internal predecessors, (9640), 2122 states have call successors, (2122), 801 states have call predecessors, (2122), 802 states have return successors, (2186), 2098 states have call predecessors, (2186), 2121 states have call successors, (2186) [2022-11-18 18:41:28,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10461 states to 10461 states and 13948 transitions. [2022-11-18 18:41:28,932 INFO L78 Accepts]: Start accepts. Automaton has 10461 states and 13948 transitions. Word has length 321 [2022-11-18 18:41:28,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:41:28,933 INFO L495 AbstractCegarLoop]: Abstraction has 10461 states and 13948 transitions. [2022-11-18 18:41:28,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 14.727272727272727) internal successors, (162), 10 states have internal predecessors, (162), 5 states have call successors, (43), 2 states have call predecessors, (43), 5 states have return successors, (40), 6 states have call predecessors, (40), 5 states have call successors, (40) [2022-11-18 18:41:28,933 INFO L276 IsEmpty]: Start isEmpty. Operand 10461 states and 13948 transitions. [2022-11-18 18:41:28,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2022-11-18 18:41:28,948 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:41:28,949 INFO L195 NwaCegarLoop]: trace histogram [20, 12, 12, 12, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:41:28,993 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2022-11-18 18:41:29,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:41:29,163 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:41:29,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:41:29,164 INFO L85 PathProgramCache]: Analyzing trace with hash 81159158, now seen corresponding path program 1 times [2022-11-18 18:41:29,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:41:29,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1637467914] [2022-11-18 18:41:29,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:41:29,165 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:41:29,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:41:29,166 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:41:29,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2022-11-18 18:41:31,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:31,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 2116 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 18:41:31,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:41:31,791 INFO L134 CoverageAnalysis]: Checked inductivity of 634 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 606 trivial. 0 not checked. [2022-11-18 18:41:31,791 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:41:31,791 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:41:31,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1637467914] [2022-11-18 18:41:31,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1637467914] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:41:31,792 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:41:31,792 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:41:31,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643029517] [2022-11-18 18:41:31,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:41:31,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:41:31,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:41:31,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:41:31,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:41:31,794 INFO L87 Difference]: Start difference. First operand 10461 states and 13948 transitions. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-11-18 18:41:32,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:41:32,763 INFO L93 Difference]: Finished difference Result 20864 states and 27830 transitions. [2022-11-18 18:41:32,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:41:32,766 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 344 [2022-11-18 18:41:32,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:41:32,794 INFO L225 Difference]: With dead ends: 20864 [2022-11-18 18:41:32,795 INFO L226 Difference]: Without dead ends: 10471 [2022-11-18 18:41:32,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 342 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:41:32,818 INFO L413 NwaCegarLoop]: 2090 mSDtfsCounter, 4 mSDsluCounter, 2085 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4175 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:41:32,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 4175 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:41:32,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10471 states. [2022-11-18 18:41:33,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10471 to 10463. [2022-11-18 18:41:33,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10463 states, 7538 states have (on average 1.2791191297426372) internal successors, (9642), 7692 states have internal predecessors, (9642), 2122 states have call successors, (2122), 801 states have call predecessors, (2122), 802 states have return successors, (2186), 2098 states have call predecessors, (2186), 2121 states have call successors, (2186) [2022-11-18 18:41:33,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10463 states to 10463 states and 13950 transitions. [2022-11-18 18:41:33,756 INFO L78 Accepts]: Start accepts. Automaton has 10463 states and 13950 transitions. Word has length 344 [2022-11-18 18:41:33,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:41:33,757 INFO L495 AbstractCegarLoop]: Abstraction has 10463 states and 13950 transitions. [2022-11-18 18:41:33,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-11-18 18:41:33,757 INFO L276 IsEmpty]: Start isEmpty. Operand 10463 states and 13950 transitions. [2022-11-18 18:41:33,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2022-11-18 18:41:33,768 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:41:33,768 INFO L195 NwaCegarLoop]: trace histogram [20, 12, 12, 12, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:41:33,809 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2022-11-18 18:41:33,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:41:33,982 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:41:33,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:41:33,983 INFO L85 PathProgramCache]: Analyzing trace with hash -445390448, now seen corresponding path program 1 times [2022-11-18 18:41:33,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:41:33,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [230448341] [2022-11-18 18:41:33,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:41:33,985 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:41:33,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:41:33,987 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:41:34,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2022-11-18 18:41:36,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:36,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 2128 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 18:41:36,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:41:36,696 INFO L134 CoverageAnalysis]: Checked inductivity of 635 backedges. 28 proven. 1 refuted. 0 times theorem prover too weak. 606 trivial. 0 not checked. [2022-11-18 18:41:36,696 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:41:36,934 INFO L134 CoverageAnalysis]: Checked inductivity of 635 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2022-11-18 18:41:36,934 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:41:36,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [230448341] [2022-11-18 18:41:36,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [230448341] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:41:36,935 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 18:41:36,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-11-18 18:41:36,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5016068] [2022-11-18 18:41:36,936 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 18:41:36,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:41:36,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:41:36,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:41:36,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:41:36,938 INFO L87 Difference]: Start difference. First operand 10463 states and 13950 transitions. Second operand has 6 states, 6 states have (on average 30.333333333333332) internal successors, (182), 6 states have internal predecessors, (182), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2022-11-18 18:41:40,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:41:40,679 INFO L93 Difference]: Finished difference Result 23690 states and 32209 transitions. [2022-11-18 18:41:40,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 18:41:40,680 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 30.333333333333332) internal successors, (182), 6 states have internal predecessors, (182), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 348 [2022-11-18 18:41:40,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:41:40,720 INFO L225 Difference]: With dead ends: 23690 [2022-11-18 18:41:40,720 INFO L226 Difference]: Without dead ends: 13295 [2022-11-18 18:41:40,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 695 GetRequests, 690 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2022-11-18 18:41:40,738 INFO L413 NwaCegarLoop]: 2593 mSDtfsCounter, 526 mSDsluCounter, 5616 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 675 SdHoareTripleChecker+Valid, 8209 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:41:40,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [675 Valid, 8209 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-18 18:41:40,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13295 states. [2022-11-18 18:41:41,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13295 to 10483. [2022-11-18 18:41:41,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10483 states, 7558 states have (on average 1.2789097644879597) internal successors, (9666), 7712 states have internal predecessors, (9666), 2122 states have call successors, (2122), 801 states have call predecessors, (2122), 802 states have return successors, (2186), 2098 states have call predecessors, (2186), 2121 states have call successors, (2186) [2022-11-18 18:41:41,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10483 states to 10483 states and 13974 transitions. [2022-11-18 18:41:41,700 INFO L78 Accepts]: Start accepts. Automaton has 10483 states and 13974 transitions. Word has length 348 [2022-11-18 18:41:41,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:41:41,701 INFO L495 AbstractCegarLoop]: Abstraction has 10483 states and 13974 transitions. [2022-11-18 18:41:41,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 30.333333333333332) internal successors, (182), 6 states have internal predecessors, (182), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2022-11-18 18:41:41,702 INFO L276 IsEmpty]: Start isEmpty. Operand 10483 states and 13974 transitions. [2022-11-18 18:41:41,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2022-11-18 18:41:41,717 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:41:41,717 INFO L195 NwaCegarLoop]: trace histogram [20, 12, 12, 12, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:41:41,767 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2022-11-18 18:41:41,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:41:41,931 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:41:41,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:41:41,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1342075687, now seen corresponding path program 1 times [2022-11-18 18:41:41,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:41:41,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [502959687] [2022-11-18 18:41:41,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:41:41,933 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:41:41,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:41:41,934 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:41:41,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2022-11-18 18:41:44,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:44,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 2128 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 18:41:44,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:41:44,718 INFO L134 CoverageAnalysis]: Checked inductivity of 634 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 606 trivial. 0 not checked. [2022-11-18 18:41:44,718 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:41:44,718 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:41:44,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [502959687] [2022-11-18 18:41:44,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [502959687] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:41:44,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:41:44,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 18:41:44,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075723608] [2022-11-18 18:41:44,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:41:44,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 18:41:44,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:41:44,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 18:41:44,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 18:41:44,721 INFO L87 Difference]: Start difference. First operand 10483 states and 13974 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-11-18 18:41:46,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:41:46,763 INFO L93 Difference]: Finished difference Result 22588 states and 30405 transitions. [2022-11-18 18:41:46,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 18:41:46,764 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 349 [2022-11-18 18:41:46,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:41:46,813 INFO L225 Difference]: With dead ends: 22588 [2022-11-18 18:41:46,814 INFO L226 Difference]: Without dead ends: 12173 [2022-11-18 18:41:46,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 352 GetRequests, 347 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-18 18:41:46,843 INFO L413 NwaCegarLoop]: 2380 mSDtfsCounter, 916 mSDsluCounter, 6857 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 935 SdHoareTripleChecker+Valid, 9237 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 18:41:46,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [935 Valid, 9237 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 18:41:46,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12173 states. [2022-11-18 18:41:47,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12173 to 10487. [2022-11-18 18:41:48,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10487 states, 7562 states have (on average 1.2787622322137) internal successors, (9670), 7716 states have internal predecessors, (9670), 2122 states have call successors, (2122), 801 states have call predecessors, (2122), 802 states have return successors, (2186), 2098 states have call predecessors, (2186), 2121 states have call successors, (2186) [2022-11-18 18:41:48,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10487 states to 10487 states and 13978 transitions. [2022-11-18 18:41:48,069 INFO L78 Accepts]: Start accepts. Automaton has 10487 states and 13978 transitions. Word has length 349 [2022-11-18 18:41:48,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:41:48,069 INFO L495 AbstractCegarLoop]: Abstraction has 10487 states and 13978 transitions. [2022-11-18 18:41:48,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-11-18 18:41:48,070 INFO L276 IsEmpty]: Start isEmpty. Operand 10487 states and 13978 transitions. [2022-11-18 18:41:48,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2022-11-18 18:41:48,079 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:41:48,080 INFO L195 NwaCegarLoop]: trace histogram [20, 11, 11, 11, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:41:48,117 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2022-11-18 18:41:48,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:41:48,280 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:41:48,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:41:48,281 INFO L85 PathProgramCache]: Analyzing trace with hash 127916346, now seen corresponding path program 1 times [2022-11-18 18:41:48,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:41:48,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2085510201] [2022-11-18 18:41:48,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:41:48,283 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:41:48,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:41:48,284 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:41:48,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2022-11-18 18:41:51,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:51,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 2344 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 18:41:51,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:41:51,638 INFO L134 CoverageAnalysis]: Checked inductivity of 534 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 516 trivial. 0 not checked. [2022-11-18 18:41:51,638 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:41:51,638 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:41:51,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2085510201] [2022-11-18 18:41:51,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2085510201] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:41:51,639 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:41:51,639 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 18:41:51,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228624056] [2022-11-18 18:41:51,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:41:51,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:41:51,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:41:51,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:41:51,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:41:51,647 INFO L87 Difference]: Start difference. First operand 10487 states and 13978 transitions. Second operand has 6 states, 6 states have (on average 29.333333333333332) internal successors, (176), 6 states have internal predecessors, (176), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-11-18 18:41:55,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:41:55,266 INFO L93 Difference]: Finished difference Result 20978 states and 27992 transitions. [2022-11-18 18:41:55,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 18:41:55,267 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.333333333333332) internal successors, (176), 6 states have internal predecessors, (176), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 335 [2022-11-18 18:41:55,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:41:55,298 INFO L225 Difference]: With dead ends: 20978 [2022-11-18 18:41:55,298 INFO L226 Difference]: Without dead ends: 10559 [2022-11-18 18:41:55,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 330 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-18 18:41:55,322 INFO L413 NwaCegarLoop]: 2098 mSDtfsCounter, 35 mSDsluCounter, 8319 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 10417 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-18 18:41:55,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 10417 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-18 18:41:55,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10559 states. [2022-11-18 18:41:56,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10559 to 10559. [2022-11-18 18:41:56,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10559 states, 7626 states have (on average 1.2774718069761344) internal successors, (9742), 7788 states have internal predecessors, (9742), 2122 states have call successors, (2122), 801 states have call predecessors, (2122), 810 states have return successors, (2198), 2098 states have call predecessors, (2198), 2121 states have call successors, (2198) [2022-11-18 18:41:56,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10559 states to 10559 states and 14062 transitions. [2022-11-18 18:41:56,333 INFO L78 Accepts]: Start accepts. Automaton has 10559 states and 14062 transitions. Word has length 335 [2022-11-18 18:41:56,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:41:56,334 INFO L495 AbstractCegarLoop]: Abstraction has 10559 states and 14062 transitions. [2022-11-18 18:41:56,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.333333333333332) internal successors, (176), 6 states have internal predecessors, (176), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-11-18 18:41:56,334 INFO L276 IsEmpty]: Start isEmpty. Operand 10559 states and 14062 transitions. [2022-11-18 18:41:56,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2022-11-18 18:41:56,343 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:41:56,344 INFO L195 NwaCegarLoop]: trace histogram [20, 12, 12, 12, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:41:56,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2022-11-18 18:41:56,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:41:56,546 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:41:56,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:41:56,546 INFO L85 PathProgramCache]: Analyzing trace with hash -1467988540, now seen corresponding path program 2 times [2022-11-18 18:41:56,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:41:56,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2014958985] [2022-11-18 18:41:56,548 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 18:41:56,548 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:41:56,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:41:56,549 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:41:56,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2022-11-18 18:41:57,893 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 18:41:57,893 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:41:57,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 990 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 18:41:57,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:41:58,021 INFO L134 CoverageAnalysis]: Checked inductivity of 649 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2022-11-18 18:41:58,021 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:41:58,022 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:41:58,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2014958985] [2022-11-18 18:41:58,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2014958985] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:41:58,022 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:41:58,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 18:41:58,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631543287] [2022-11-18 18:41:58,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:41:58,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 18:41:58,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:41:58,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 18:41:58,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 18:41:58,024 INFO L87 Difference]: Start difference. First operand 10559 states and 14062 transitions. Second operand has 5 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 3 states have call successors, (42), 3 states have call predecessors, (42), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) [2022-11-18 18:41:59,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:41:59,285 INFO L93 Difference]: Finished difference Result 10976 states and 14656 transitions. [2022-11-18 18:41:59,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 18:41:59,286 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 3 states have call successors, (42), 3 states have call predecessors, (42), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) Word has length 356 [2022-11-18 18:41:59,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:41:59,324 INFO L225 Difference]: With dead ends: 10976 [2022-11-18 18:41:59,324 INFO L226 Difference]: Without dead ends: 10973 [2022-11-18 18:41:59,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 352 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:41:59,333 INFO L413 NwaCegarLoop]: 2157 mSDtfsCounter, 64 mSDsluCounter, 6374 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 8531 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:41:59,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 8531 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:41:59,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10973 states. [2022-11-18 18:42:00,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10973 to 10595. [2022-11-18 18:42:00,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10595 states, 7653 states have (on average 1.2764928786096956) internal successors, (9769), 7815 states have internal predecessors, (9769), 2122 states have call successors, (2122), 810 states have call predecessors, (2122), 819 states have return successors, (2198), 2098 states have call predecessors, (2198), 2121 states have call successors, (2198) [2022-11-18 18:42:00,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10595 states to 10595 states and 14089 transitions. [2022-11-18 18:42:00,492 INFO L78 Accepts]: Start accepts. Automaton has 10595 states and 14089 transitions. Word has length 356 [2022-11-18 18:42:00,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:42:00,492 INFO L495 AbstractCegarLoop]: Abstraction has 10595 states and 14089 transitions. [2022-11-18 18:42:00,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 3 states have call successors, (42), 3 states have call predecessors, (42), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) [2022-11-18 18:42:00,493 INFO L276 IsEmpty]: Start isEmpty. Operand 10595 states and 14089 transitions. [2022-11-18 18:42:00,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2022-11-18 18:42:00,506 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:42:00,506 INFO L195 NwaCegarLoop]: trace histogram [20, 12, 12, 12, 6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:42:00,531 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2022-11-18 18:42:00,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:42:00,714 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:42:00,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:42:00,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1058279810, now seen corresponding path program 1 times [2022-11-18 18:42:00,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:42:00,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [714680973] [2022-11-18 18:42:00,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:42:00,716 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:42:00,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:42:00,717 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:42:00,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2022-11-18 18:42:03,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:03,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 2249 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 18:42:03,504 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:42:03,701 INFO L134 CoverageAnalysis]: Checked inductivity of 674 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 585 trivial. 0 not checked. [2022-11-18 18:42:03,702 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:42:03,702 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:42:03,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [714680973] [2022-11-18 18:42:03,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [714680973] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:42:03,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:42:03,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:42:03,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934807313] [2022-11-18 18:42:03,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:42:03,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:42:03,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:42:03,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:42:03,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:42:03,705 INFO L87 Difference]: Start difference. First operand 10595 states and 14089 transitions. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 3 states have call successors, (46), 3 states have call predecessors, (46), 3 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-11-18 18:42:06,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:42:06,655 INFO L93 Difference]: Finished difference Result 25829 states and 34372 transitions. [2022-11-18 18:42:06,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:42:06,656 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 3 states have call successors, (46), 3 states have call predecessors, (46), 3 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 382 [2022-11-18 18:42:06,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:42:06,702 INFO L225 Difference]: With dead ends: 25829 [2022-11-18 18:42:06,702 INFO L226 Difference]: Without dead ends: 15302 [2022-11-18 18:42:06,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 381 GetRequests, 380 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:42:06,726 INFO L413 NwaCegarLoop]: 3300 mSDtfsCounter, 1454 mSDsluCounter, 1963 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1454 SdHoareTripleChecker+Valid, 5263 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-18 18:42:06,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1454 Valid, 5263 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-18 18:42:06,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15302 states. [2022-11-18 18:42:08,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15302 to 15231. [2022-11-18 18:42:08,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15231 states, 11130 states have (on average 1.2757412398921832) internal successors, (14199), 11356 states have internal predecessors, (14199), 2903 states have call successors, (2903), 1184 states have call predecessors, (2903), 1197 states have return successors, (3013), 2867 states have call predecessors, (3013), 2902 states have call successors, (3013) [2022-11-18 18:42:08,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15231 states to 15231 states and 20115 transitions. [2022-11-18 18:42:08,118 INFO L78 Accepts]: Start accepts. Automaton has 15231 states and 20115 transitions. Word has length 382 [2022-11-18 18:42:08,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:42:08,119 INFO L495 AbstractCegarLoop]: Abstraction has 15231 states and 20115 transitions. [2022-11-18 18:42:08,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 3 states have call successors, (46), 3 states have call predecessors, (46), 3 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-11-18 18:42:08,119 INFO L276 IsEmpty]: Start isEmpty. Operand 15231 states and 20115 transitions. [2022-11-18 18:42:08,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2022-11-18 18:42:08,145 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:42:08,145 INFO L195 NwaCegarLoop]: trace histogram [20, 12, 12, 12, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:42:08,189 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2022-11-18 18:42:08,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:42:08,359 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:42:08,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:42:08,360 INFO L85 PathProgramCache]: Analyzing trace with hash -621940314, now seen corresponding path program 1 times [2022-11-18 18:42:08,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:42:08,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1900771684] [2022-11-18 18:42:08,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:42:08,362 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:42:08,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:42:08,363 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:42:08,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2022-11-18 18:42:11,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:11,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 2285 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-18 18:42:11,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:42:12,245 INFO L134 CoverageAnalysis]: Checked inductivity of 688 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 672 trivial. 0 not checked. [2022-11-18 18:42:12,246 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:42:12,246 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:42:12,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1900771684] [2022-11-18 18:42:12,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1900771684] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:42:12,246 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:42:12,247 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 18:42:12,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670294389] [2022-11-18 18:42:12,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:42:12,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 18:42:12,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:42:12,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 18:42:12,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-18 18:42:12,249 INFO L87 Difference]: Start difference. First operand 15231 states and 20115 transitions. Second operand has 12 states, 11 states have (on average 16.545454545454547) internal successors, (182), 9 states have internal predecessors, (182), 3 states have call successors, (46), 2 states have call predecessors, (46), 4 states have return successors, (43), 4 states have call predecessors, (43), 2 states have call successors, (43) [2022-11-18 18:42:16,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:42:16,287 INFO L93 Difference]: Finished difference Result 31279 states and 41494 transitions. [2022-11-18 18:42:16,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-18 18:42:16,288 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 16.545454545454547) internal successors, (182), 9 states have internal predecessors, (182), 3 states have call successors, (46), 2 states have call predecessors, (46), 4 states have return successors, (43), 4 states have call predecessors, (43), 2 states have call successors, (43) Word has length 401 [2022-11-18 18:42:16,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:42:16,326 INFO L225 Difference]: With dead ends: 31279 [2022-11-18 18:42:16,327 INFO L226 Difference]: Without dead ends: 16116 [2022-11-18 18:42:16,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 405 GetRequests, 390 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2022-11-18 18:42:16,355 INFO L413 NwaCegarLoop]: 2110 mSDtfsCounter, 132 mSDsluCounter, 20914 mSDsCounter, 0 mSdLazyCounter, 598 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 23024 SdHoareTripleChecker+Invalid, 637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:42:16,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 23024 Invalid, 637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 598 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-18 18:42:16,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16116 states. [2022-11-18 18:42:17,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16116 to 15375. [2022-11-18 18:42:17,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15375 states, 11241 states have (on average 1.2730184147317853) internal successors, (14310), 11461 states have internal predecessors, (14310), 2916 states have call successors, (2916), 1184 states have call predecessors, (2916), 1217 states have return successors, (3078), 2906 states have call predecessors, (3078), 2915 states have call successors, (3078) [2022-11-18 18:42:17,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15375 states to 15375 states and 20304 transitions. [2022-11-18 18:42:17,885 INFO L78 Accepts]: Start accepts. Automaton has 15375 states and 20304 transitions. Word has length 401 [2022-11-18 18:42:17,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:42:17,886 INFO L495 AbstractCegarLoop]: Abstraction has 15375 states and 20304 transitions. [2022-11-18 18:42:17,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 16.545454545454547) internal successors, (182), 9 states have internal predecessors, (182), 3 states have call successors, (46), 2 states have call predecessors, (46), 4 states have return successors, (43), 4 states have call predecessors, (43), 2 states have call successors, (43) [2022-11-18 18:42:17,886 INFO L276 IsEmpty]: Start isEmpty. Operand 15375 states and 20304 transitions. [2022-11-18 18:42:17,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2022-11-18 18:42:17,907 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:42:17,908 INFO L195 NwaCegarLoop]: trace histogram [20, 11, 11, 11, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:42:17,954 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2022-11-18 18:42:18,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:42:18,131 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:42:18,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:42:18,132 INFO L85 PathProgramCache]: Analyzing trace with hash -572603908, now seen corresponding path program 1 times [2022-11-18 18:42:18,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:42:18,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [872136803] [2022-11-18 18:42:18,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:42:18,134 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:42:18,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:42:18,135 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:42:18,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2022-11-18 18:42:21,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:21,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 2655 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 18:42:21,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:42:21,941 INFO L134 CoverageAnalysis]: Checked inductivity of 642 backedges. 43 proven. 34 refuted. 0 times theorem prover too weak. 565 trivial. 0 not checked. [2022-11-18 18:42:21,942 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:42:22,518 INFO L134 CoverageAnalysis]: Checked inductivity of 642 backedges. 2 proven. 34 refuted. 0 times theorem prover too weak. 606 trivial. 0 not checked. [2022-11-18 18:42:22,518 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:42:22,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [872136803] [2022-11-18 18:42:22,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [872136803] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:42:22,519 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 18:42:22,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-11-18 18:42:22,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642922276] [2022-11-18 18:42:22,519 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 18:42:22,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 18:42:22,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:42:22,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 18:42:22,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-11-18 18:42:22,521 INFO L87 Difference]: Start difference. First operand 15375 states and 20304 transitions. Second operand has 12 states, 12 states have (on average 24.25) internal successors, (291), 12 states have internal predecessors, (291), 10 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (83), 10 states have call predecessors, (83), 10 states have call successors, (83) [2022-11-18 18:42:25,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:42:25,214 INFO L93 Difference]: Finished difference Result 31642 states and 41770 transitions. [2022-11-18 18:42:25,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 18:42:25,215 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 24.25) internal successors, (291), 12 states have internal predecessors, (291), 10 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (83), 10 states have call predecessors, (83), 10 states have call successors, (83) Word has length 412 [2022-11-18 18:42:25,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:42:25,256 INFO L225 Difference]: With dead ends: 31642 [2022-11-18 18:42:25,256 INFO L226 Difference]: Without dead ends: 16335 [2022-11-18 18:42:25,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 822 GetRequests, 812 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-11-18 18:42:25,285 INFO L413 NwaCegarLoop]: 2185 mSDtfsCounter, 161 mSDsluCounter, 17160 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 19345 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:42:25,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 19345 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-18 18:42:25,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16335 states. [2022-11-18 18:42:26,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16335 to 15495. [2022-11-18 18:42:26,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15495 states, 11337 states have (on average 1.2749404604392696) internal successors, (14454), 11557 states have internal predecessors, (14454), 2940 states have call successors, (2940), 1184 states have call predecessors, (2940), 1217 states have return successors, (3102), 2930 states have call predecessors, (3102), 2939 states have call successors, (3102) [2022-11-18 18:42:26,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15495 states to 15495 states and 20496 transitions. [2022-11-18 18:42:26,709 INFO L78 Accepts]: Start accepts. Automaton has 15495 states and 20496 transitions. Word has length 412 [2022-11-18 18:42:26,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:42:26,710 INFO L495 AbstractCegarLoop]: Abstraction has 15495 states and 20496 transitions. [2022-11-18 18:42:26,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 24.25) internal successors, (291), 12 states have internal predecessors, (291), 10 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (83), 10 states have call predecessors, (83), 10 states have call successors, (83) [2022-11-18 18:42:26,710 INFO L276 IsEmpty]: Start isEmpty. Operand 15495 states and 20496 transitions. [2022-11-18 18:42:26,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2022-11-18 18:42:26,729 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:42:26,729 INFO L195 NwaCegarLoop]: trace histogram [20, 12, 12, 12, 7, 7, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:42:26,771 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2022-11-18 18:42:26,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:42:26,930 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:42:26,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:42:26,931 INFO L85 PathProgramCache]: Analyzing trace with hash -346609970, now seen corresponding path program 1 times [2022-11-18 18:42:26,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:42:26,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1088856218] [2022-11-18 18:42:26,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:42:26,933 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:42:26,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:42:26,934 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:42:26,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2022-11-18 18:42:30,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:30,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 2377 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 18:42:30,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:42:30,571 INFO L134 CoverageAnalysis]: Checked inductivity of 777 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 775 trivial. 0 not checked. [2022-11-18 18:42:30,572 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:42:30,572 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:42:30,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1088856218] [2022-11-18 18:42:30,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1088856218] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:42:30,572 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:42:30,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 18:42:30,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099521647] [2022-11-18 18:42:30,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:42:30,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 18:42:30,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:42:30,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 18:42:30,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 18:42:30,575 INFO L87 Difference]: Start difference. First operand 15495 states and 20496 transitions. Second operand has 5 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 3 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2022-11-18 18:42:32,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:42:32,128 INFO L93 Difference]: Finished difference Result 16378 states and 21764 transitions. [2022-11-18 18:42:32,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 18:42:32,129 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 3 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 427 [2022-11-18 18:42:32,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:42:32,180 INFO L225 Difference]: With dead ends: 16378 [2022-11-18 18:42:32,180 INFO L226 Difference]: Without dead ends: 16375 [2022-11-18 18:42:32,186 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 427 GetRequests, 423 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:42:32,187 INFO L413 NwaCegarLoop]: 2181 mSDtfsCounter, 64 mSDsluCounter, 6449 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 8630 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:42:32,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 8630 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:42:32,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16375 states. [2022-11-18 18:42:33,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16375 to 15543. [2022-11-18 18:42:33,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15543 states, 11373 states have (on average 1.2739822386353645) internal successors, (14489), 11593 states have internal predecessors, (14489), 2940 states have call successors, (2940), 1196 states have call predecessors, (2940), 1229 states have return successors, (3102), 2930 states have call predecessors, (3102), 2939 states have call successors, (3102) [2022-11-18 18:42:33,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15543 states to 15543 states and 20531 transitions. [2022-11-18 18:42:33,668 INFO L78 Accepts]: Start accepts. Automaton has 15543 states and 20531 transitions. Word has length 427 [2022-11-18 18:42:33,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:42:33,668 INFO L495 AbstractCegarLoop]: Abstraction has 15543 states and 20531 transitions. [2022-11-18 18:42:33,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 3 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2022-11-18 18:42:33,669 INFO L276 IsEmpty]: Start isEmpty. Operand 15543 states and 20531 transitions. [2022-11-18 18:42:33,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2022-11-18 18:42:33,687 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:42:33,688 INFO L195 NwaCegarLoop]: trace histogram [20, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:42:33,726 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2022-11-18 18:42:33,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:42:33,889 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:42:33,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:42:33,889 INFO L85 PathProgramCache]: Analyzing trace with hash 43660553, now seen corresponding path program 1 times [2022-11-18 18:42:33,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:42:33,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [845227014] [2022-11-18 18:42:33,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:42:33,893 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:42:33,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:42:33,894 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:42:33,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2022-11-18 18:42:37,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:37,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 3045 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 18:42:37,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:42:38,031 INFO L134 CoverageAnalysis]: Checked inductivity of 1131 backedges. 383 proven. 0 refuted. 0 times theorem prover too weak. 748 trivial. 0 not checked. [2022-11-18 18:42:38,032 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:42:38,032 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:42:38,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [845227014] [2022-11-18 18:42:38,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [845227014] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:42:38,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:42:38,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 18:42:38,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813341320] [2022-11-18 18:42:38,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:42:38,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 18:42:38,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:42:38,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:42:38,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:42:38,037 INFO L87 Difference]: Start difference. First operand 15543 states and 20531 transitions. Second operand has 4 states, 4 states have (on average 51.5) internal successors, (206), 4 states have internal predecessors, (206), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2022-11-18 18:42:41,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:42:41,094 INFO L93 Difference]: Finished difference Result 31546 states and 41798 transitions. [2022-11-18 18:42:41,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 18:42:41,095 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 51.5) internal successors, (206), 4 states have internal predecessors, (206), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 429 [2022-11-18 18:42:41,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:42:41,148 INFO L225 Difference]: With dead ends: 31546 [2022-11-18 18:42:41,148 INFO L226 Difference]: Without dead ends: 16071 [2022-11-18 18:42:41,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 429 GetRequests, 426 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 18:42:41,183 INFO L413 NwaCegarLoop]: 2179 mSDtfsCounter, 331 mSDsluCounter, 3792 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 5971 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-18 18:42:41,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 5971 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-18 18:42:41,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16071 states. [2022-11-18 18:42:42,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16071 to 15543. [2022-11-18 18:42:42,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15543 states, 11373 states have (on average 1.272927108062956) internal successors, (14477), 11593 states have internal predecessors, (14477), 2940 states have call successors, (2940), 1196 states have call predecessors, (2940), 1229 states have return successors, (3102), 2930 states have call predecessors, (3102), 2939 states have call successors, (3102) [2022-11-18 18:42:42,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15543 states to 15543 states and 20519 transitions. [2022-11-18 18:42:42,755 INFO L78 Accepts]: Start accepts. Automaton has 15543 states and 20519 transitions. Word has length 429 [2022-11-18 18:42:42,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:42:42,756 INFO L495 AbstractCegarLoop]: Abstraction has 15543 states and 20519 transitions. [2022-11-18 18:42:42,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 51.5) internal successors, (206), 4 states have internal predecessors, (206), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2022-11-18 18:42:42,756 INFO L276 IsEmpty]: Start isEmpty. Operand 15543 states and 20519 transitions. [2022-11-18 18:42:42,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 441 [2022-11-18 18:42:42,775 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:42:42,776 INFO L195 NwaCegarLoop]: trace histogram [20, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:42:42,822 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Ended with exit code 0 [2022-11-18 18:42:42,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:42:42,976 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:42:42,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:42:42,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1823783452, now seen corresponding path program 1 times [2022-11-18 18:42:42,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:42:42,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [13222702] [2022-11-18 18:42:42,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:42:42,979 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:42:42,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:42:42,980 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:42:42,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2022-11-18 18:42:47,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:47,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 3095 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-18 18:42:47,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:42:47,437 INFO L134 CoverageAnalysis]: Checked inductivity of 1134 backedges. 386 proven. 0 refuted. 0 times theorem prover too weak. 748 trivial. 0 not checked. [2022-11-18 18:42:47,437 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:42:47,437 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:42:47,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [13222702] [2022-11-18 18:42:47,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [13222702] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:42:47,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:42:47,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 18:42:47,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262022735] [2022-11-18 18:42:47,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:42:47,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 18:42:47,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:42:47,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:42:47,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:42:47,440 INFO L87 Difference]: Start difference. First operand 15543 states and 20519 transitions. Second operand has 4 states, 4 states have (on average 53.75) internal successors, (215), 4 states have internal predecessors, (215), 3 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2022-11-18 18:42:48,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:42:48,876 INFO L93 Difference]: Finished difference Result 31018 states and 40994 transitions. [2022-11-18 18:42:48,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 18:42:48,876 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.75) internal successors, (215), 4 states have internal predecessors, (215), 3 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) Word has length 440 [2022-11-18 18:42:48,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:42:48,922 INFO L225 Difference]: With dead ends: 31018 [2022-11-18 18:42:48,923 INFO L226 Difference]: Without dead ends: 15543 [2022-11-18 18:42:48,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 439 GetRequests, 437 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:42:48,960 INFO L413 NwaCegarLoop]: 2091 mSDtfsCounter, 0 mSDsluCounter, 4180 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6271 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:42:48,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6271 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 2 Unchecked, 0.0s Time] [2022-11-18 18:42:48,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15543 states. [2022-11-18 18:42:50,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15543 to 15543. [2022-11-18 18:42:50,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15543 states, 11373 states have (on average 1.2718719774905478) internal successors, (14465), 11593 states have internal predecessors, (14465), 2940 states have call successors, (2940), 1196 states have call predecessors, (2940), 1229 states have return successors, (3102), 2930 states have call predecessors, (3102), 2939 states have call successors, (3102) [2022-11-18 18:42:50,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15543 states to 15543 states and 20507 transitions. [2022-11-18 18:42:50,484 INFO L78 Accepts]: Start accepts. Automaton has 15543 states and 20507 transitions. Word has length 440 [2022-11-18 18:42:50,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:42:50,485 INFO L495 AbstractCegarLoop]: Abstraction has 15543 states and 20507 transitions. [2022-11-18 18:42:50,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.75) internal successors, (215), 4 states have internal predecessors, (215), 3 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2022-11-18 18:42:50,485 INFO L276 IsEmpty]: Start isEmpty. Operand 15543 states and 20507 transitions. [2022-11-18 18:42:50,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2022-11-18 18:42:50,503 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:42:50,504 INFO L195 NwaCegarLoop]: trace histogram [20, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:42:50,558 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2022-11-18 18:42:50,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:42:50,704 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:42:50,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:42:50,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1765026409, now seen corresponding path program 1 times [2022-11-18 18:42:50,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:42:50,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [109253945] [2022-11-18 18:42:50,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:42:50,707 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:42:50,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:42:50,708 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:42:50,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2022-11-18 18:42:54,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:55,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 3115 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 18:42:55,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:42:55,254 INFO L134 CoverageAnalysis]: Checked inductivity of 1142 backedges. 390 proven. 0 refuted. 0 times theorem prover too weak. 752 trivial. 0 not checked. [2022-11-18 18:42:55,255 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:42:55,256 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:42:55,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [109253945] [2022-11-18 18:42:55,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [109253945] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:42:55,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:42:55,257 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 18:42:55,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293098333] [2022-11-18 18:42:55,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:42:55,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 18:42:55,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:42:55,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 18:42:55,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 18:42:55,259 INFO L87 Difference]: Start difference. First operand 15543 states and 20507 transitions. Second operand has 5 states, 5 states have (on average 43.4) internal successors, (217), 5 states have internal predecessors, (217), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-11-18 18:42:56,630 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:42:57,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:42:59,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:42:59,908 INFO L93 Difference]: Finished difference Result 31126 states and 41108 transitions. [2022-11-18 18:42:59,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 18:42:59,908 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 43.4) internal successors, (217), 5 states have internal predecessors, (217), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 447 [2022-11-18 18:42:59,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:42:59,953 INFO L225 Difference]: With dead ends: 31126 [2022-11-18 18:42:59,953 INFO L226 Difference]: Without dead ends: 15651 [2022-11-18 18:42:59,984 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 448 GetRequests, 443 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-18 18:42:59,985 INFO L413 NwaCegarLoop]: 2102 mSDtfsCounter, 24 mSDsluCounter, 6228 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 8330 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:42:59,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 8330 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-18 18:42:59,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15651 states. [2022-11-18 18:43:01,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15651 to 15543. [2022-11-18 18:43:01,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15543 states, 11373 states have (on average 1.2718719774905478) internal successors, (14465), 11593 states have internal predecessors, (14465), 2940 states have call successors, (2940), 1196 states have call predecessors, (2940), 1229 states have return successors, (3102), 2930 states have call predecessors, (3102), 2939 states have call successors, (3102) [2022-11-18 18:43:01,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15543 states to 15543 states and 20507 transitions. [2022-11-18 18:43:01,544 INFO L78 Accepts]: Start accepts. Automaton has 15543 states and 20507 transitions. Word has length 447 [2022-11-18 18:43:01,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:43:01,544 INFO L495 AbstractCegarLoop]: Abstraction has 15543 states and 20507 transitions. [2022-11-18 18:43:01,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.4) internal successors, (217), 5 states have internal predecessors, (217), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-11-18 18:43:01,544 INFO L276 IsEmpty]: Start isEmpty. Operand 15543 states and 20507 transitions. [2022-11-18 18:43:01,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 488 [2022-11-18 18:43:01,564 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:43:01,564 INFO L195 NwaCegarLoop]: trace histogram [20, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:43:01,618 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2022-11-18 18:43:01,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:43:01,765 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:43:01,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:43:01,765 INFO L85 PathProgramCache]: Analyzing trace with hash -1393970700, now seen corresponding path program 1 times [2022-11-18 18:43:01,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:43:01,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [615882523] [2022-11-18 18:43:01,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:43:01,768 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:43:01,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:43:01,769 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:43:01,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2022-11-18 18:43:06,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:06,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 3210 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-18 18:43:06,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:43:06,408 INFO L134 CoverageAnalysis]: Checked inductivity of 1165 backedges. 393 proven. 0 refuted. 0 times theorem prover too weak. 772 trivial. 0 not checked. [2022-11-18 18:43:06,408 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:43:06,408 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:43:06,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [615882523] [2022-11-18 18:43:06,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [615882523] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:43:06,409 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:43:06,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 18:43:06,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721760333] [2022-11-18 18:43:06,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:43:06,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 18:43:06,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:43:06,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:43:06,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:43:06,412 INFO L87 Difference]: Start difference. First operand 15543 states and 20507 transitions. Second operand has 4 states, 4 states have (on average 58.25) internal successors, (233), 4 states have internal predecessors, (233), 2 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2022-11-18 18:43:07,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:43:07,921 INFO L93 Difference]: Finished difference Result 21666 states and 28491 transitions. [2022-11-18 18:43:07,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 18:43:07,922 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 58.25) internal successors, (233), 4 states have internal predecessors, (233), 2 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 487 [2022-11-18 18:43:07,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:43:07,926 INFO L225 Difference]: With dead ends: 21666 [2022-11-18 18:43:07,926 INFO L226 Difference]: Without dead ends: 0 [2022-11-18 18:43:07,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 487 GetRequests, 484 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 18:43:07,960 INFO L413 NwaCegarLoop]: 1710 mSDtfsCounter, 11 mSDsluCounter, 3408 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 5118 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-18 18:43:07,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 5118 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-18 18:43:07,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-18 18:43:07,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-18 18:43:07,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:43:07,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-18 18:43:07,967 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 487 [2022-11-18 18:43:07,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:43:07,968 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 18:43:07,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.25) internal successors, (233), 4 states have internal predecessors, (233), 2 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2022-11-18 18:43:07,968 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-18 18:43:07,968 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-18 18:43:07,970 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-18 18:43:08,037 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2022-11-18 18:43:08,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa27caa-7fdb-4d91-ad2e-f4f6872fb8dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:43:08,189 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.