./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 e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8 --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-e04fb08 [2022-11-16 12:49:12,768 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:49:12,770 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:49:12,798 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:49:12,799 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:49:12,800 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:49:12,801 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:49:12,803 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:49:12,805 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:49:12,806 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:49:12,807 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:49:12,809 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:49:12,809 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:49:12,811 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:49:12,812 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:49:12,813 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:49:12,814 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:49:12,816 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:49:12,817 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:49:12,819 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:49:12,821 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:49:12,825 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:49:12,827 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:49:12,827 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:49:12,831 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:49:12,831 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:49:12,832 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:49:12,833 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:49:12,833 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:49:12,834 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:49:12,834 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:49:12,845 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:49:12,846 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:49:12,847 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:49:12,848 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:49:12,848 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:49:12,849 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:49:12,849 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:49:12,849 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:49:12,850 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:49:12,851 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:49:12,852 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-16 12:49:12,887 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:49:12,888 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:49:12,888 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:49:12,888 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:49:12,889 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:49:12,889 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:49:12,890 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:49:12,890 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:49:12,890 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:49:12,890 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:49:12,891 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:49:12,891 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:49:12,891 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:49:12,891 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:49:12,891 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:49:12,892 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:49:12,892 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:49:12,892 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:49:12,892 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:49:12,893 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:49:12,893 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:49:12,893 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:49:12,893 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:49:12,894 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:49:12,894 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:49:12,894 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:49:12,894 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:49:12,898 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:49:12,899 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:49:12,900 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:49:12,900 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_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a900a56caf1252bf2b77371f0836914c913e44b231203ecd4eebd687a96fd0c2 [2022-11-16 12:49:13,169 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:49:13,192 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:49:13,195 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:49:13,196 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:49:13,197 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:49:13,198 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/../../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 [2022-11-16 12:49:13,274 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/data/221871ef4/02dfd27031b84edaa5917221b2b5a5f5/FLAGdd313f447 [2022-11-16 12:49:14,208 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:49:14,209 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/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 [2022-11-16 12:49:14,296 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/data/221871ef4/02dfd27031b84edaa5917221b2b5a5f5/FLAGdd313f447 [2022-11-16 12:49:14,649 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/data/221871ef4/02dfd27031b84edaa5917221b2b5a5f5 [2022-11-16 12:49:14,652 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:49:14,654 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:49:14,658 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:49:14,658 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:49:14,663 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:49:14,664 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:49:14" (1/1) ... [2022-11-16 12:49:14,665 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49d0e151 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:49:14, skipping insertion in model container [2022-11-16 12:49:14,665 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:49:14" (1/1) ... [2022-11-16 12:49:14,675 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:49:14,812 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:49:15,434 WARN L1255 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5986] [2022-11-16 12:49:15,434 WARN L1255 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5987-5988] [2022-11-16 12:49:15,977 WARN L229 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_c2669ab0-395a-4d88-9049-352ec649b3b2/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] [2022-11-16 12:49:17,407 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:49:17,443 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:49:17,590 WARN L1255 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5986] [2022-11-16 12:49:17,591 WARN L1255 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5987-5988] [2022-11-16 12:49:17,610 WARN L229 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_c2669ab0-395a-4d88-9049-352ec649b3b2/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] [2022-11-16 12:49:17,966 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:49:18,147 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:49:18,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:49:18 WrapperNode [2022-11-16 12:49:18,148 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:49:18,149 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:49:18,149 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:49:18,149 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:49:18,157 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:49:18" (1/1) ... [2022-11-16 12:49:18,260 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:49:18" (1/1) ... [2022-11-16 12:49:18,445 INFO L138 Inliner]: procedures = 350, calls = 2000, calls flagged for inlining = 171, calls inlined = 139, statements flattened = 4678 [2022-11-16 12:49:18,445 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:49:18,446 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:49:18,446 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:49:18,446 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:49:18,455 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:49:18" (1/1) ... [2022-11-16 12:49:18,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:49:18" (1/1) ... [2022-11-16 12:49:18,477 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:49:18" (1/1) ... [2022-11-16 12:49:18,478 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:49:18" (1/1) ... [2022-11-16 12:49:18,578 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:49:18" (1/1) ... [2022-11-16 12:49:18,600 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:49:18" (1/1) ... [2022-11-16 12:49:18,640 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:49:18" (1/1) ... [2022-11-16 12:49:18,662 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:49:18" (1/1) ... [2022-11-16 12:49:18,699 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:49:18,701 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:49:18,702 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:49:18,702 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:49:18,703 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:49:18" (1/1) ... [2022-11-16 12:49:18,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:49:18,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:49:18,740 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:49:18,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:49:18,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-16 12:49:18,787 INFO L130 BoogieDeclarations]: Found specification of procedure get_page [2022-11-16 12:49:18,787 INFO L138 BoogieDeclarations]: Found implementation of procedure get_page [2022-11-16 12:49:18,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-16 12:49:18,787 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_release_tx_bufs [2022-11-16 12:49:18,788 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_release_tx_bufs [2022-11-16 12:49:18,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-16 12:49:18,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-16 12:49:18,788 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2022-11-16 12:49:18,788 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2022-11-16 12:49:18,788 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2022-11-16 12:49:18,789 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2022-11-16 12:49:18,789 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_change_mtu [2022-11-16 12:49:18,789 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_change_mtu [2022-11-16 12:49:18,789 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-11-16 12:49:18,790 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-11-16 12:49:18,790 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_write [2022-11-16 12:49:18,790 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_write [2022-11-16 12:49:18,790 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-16 12:49:18,790 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-16 12:49:18,790 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-16 12:49:18,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-16 12:49:18,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-16 12:49:18,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-16 12:49:18,791 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2022-11-16 12:49:18,791 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2022-11-16 12:49:18,791 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_update_begin [2022-11-16 12:49:18,791 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_update_begin [2022-11-16 12:49:18,792 INFO L130 BoogieDeclarations]: Found specification of procedure bind_evtchn_to_irqhandler [2022-11-16 12:49:18,792 INFO L138 BoogieDeclarations]: Found implementation of procedure bind_evtchn_to_irqhandler [2022-11-16 12:49:18,792 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_transaction_end [2022-11-16 12:49:18,792 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_transaction_end [2022-11-16 12:49:18,792 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_remove [2022-11-16 12:49:18,792 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_remove [2022-11-16 12:49:18,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-16 12:49:18,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-16 12:49:18,793 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-16 12:49:18,793 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-16 12:49:18,794 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-16 12:49:18,794 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-16 12:49:18,794 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_grant_ring [2022-11-16 12:49:18,794 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_grant_ring [2022-11-16 12:49:18,794 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-16 12:49:18,795 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-16 12:49:18,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-16 12:49:18,795 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-16 12:49:18,795 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_claim_grant_reference [2022-11-16 12:49:18,795 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_claim_grant_reference [2022-11-16 12:49:18,795 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-16 12:49:18,796 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-16 12:49:18,796 INFO L130 BoogieDeclarations]: Found specification of procedure netif_set_real_num_tx_queues [2022-11-16 12:49:18,796 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_set_real_num_tx_queues [2022-11-16 12:49:18,797 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_end_foreign_access [2022-11-16 12:49:18,798 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_end_foreign_access [2022-11-16 12:49:18,798 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_disconnect_backend [2022-11-16 12:49:18,798 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_disconnect_backend [2022-11-16 12:49:18,798 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_get_stats64 [2022-11-16 12:49:18,798 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_get_stats64 [2022-11-16 12:49:18,799 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-16 12:49:18,799 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-16 12:49:18,799 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_alloc_evtchn [2022-11-16 12:49:18,799 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_alloc_evtchn [2022-11-16 12:49:18,800 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-11-16 12:49:18,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-11-16 12:49:18,800 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_alloc_grant_references [2022-11-16 12:49:18,801 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_alloc_grant_references [2022-11-16 12:49:18,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:49:18,801 INFO L130 BoogieDeclarations]: Found specification of procedure netfront_tx_slot_available [2022-11-16 12:49:18,801 INFO L138 BoogieDeclarations]: Found implementation of procedure netfront_tx_slot_available [2022-11-16 12:49:18,801 INFO L130 BoogieDeclarations]: Found specification of procedure notify_remote_via_irq [2022-11-16 12:49:18,801 INFO L138 BoogieDeclarations]: Found implementation of procedure notify_remote_via_irq [2022-11-16 12:49:18,802 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_release_grant_reference [2022-11-16 12:49:18,802 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_release_grant_reference [2022-11-16 12:49:18,802 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-11-16 12:49:18,803 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-11-16 12:49:18,803 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_can_sg [2022-11-16 12:49:18,803 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_can_sg [2022-11-16 12:49:18,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 12:49:18,803 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-16 12:49:18,803 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-16 12:49:18,804 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-16 12:49:18,804 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-16 12:49:18,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-11-16 12:49:18,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-11-16 12:49:18,804 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2022-11-16 12:49:18,804 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_tail [2022-11-16 12:49:18,805 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_tail [2022-11-16 12:49:18,805 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_rxidx [2022-11-16 12:49:18,805 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_rxidx [2022-11-16 12:49:18,806 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-16 12:49:18,806 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-16 12:49:18,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:49:18,807 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2022-11-16 12:49:18,807 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2022-11-16 12:49:18,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-16 12:49:18,807 INFO L130 BoogieDeclarations]: Found specification of procedure write_queue_xenstore_keys [2022-11-16 12:49:18,807 INFO L138 BoogieDeclarations]: Found implementation of procedure write_queue_xenstore_keys [2022-11-16 12:49:18,808 INFO L130 BoogieDeclarations]: Found specification of procedure pfn_to_mfn [2022-11-16 12:49:18,808 INFO L138 BoogieDeclarations]: Found implementation of procedure pfn_to_mfn [2022-11-16 12:49:18,808 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-11-16 12:49:18,808 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-11-16 12:49:18,808 INFO L130 BoogieDeclarations]: Found specification of procedure add_id_to_freelist [2022-11-16 12:49:18,808 INFO L138 BoogieDeclarations]: Found implementation of procedure add_id_to_freelist [2022-11-16 12:49:18,808 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_alloc_rx_buffers [2022-11-16 12:49:18,809 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_alloc_rx_buffers [2022-11-16 12:49:18,809 INFO L130 BoogieDeclarations]: Found specification of procedure skb_entry_set_link [2022-11-16 12:49:18,809 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_entry_set_link [2022-11-16 12:49:18,809 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-16 12:49:18,810 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-16 12:49:18,810 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-16 12:49:18,810 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-16 12:49:18,810 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-11-16 12:49:18,810 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-11-16 12:49:18,811 INFO L130 BoogieDeclarations]: Found specification of procedure free_pages [2022-11-16 12:49:18,812 INFO L138 BoogieDeclarations]: Found implementation of procedure free_pages [2022-11-16 12:49:18,814 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_end_foreign_access_ref [2022-11-16 12:49:18,814 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_end_foreign_access_ref [2022-11-16 12:49:18,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-16 12:49:18,815 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-16 12:49:18,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-16 12:49:18,817 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-11-16 12:49:18,818 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-11-16 12:49:18,818 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_free_grant_references [2022-11-16 12:49:18,818 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_free_grant_references [2022-11-16 12:49:18,824 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2022-11-16 12:49:18,824 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2022-11-16 12:49:18,824 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-11-16 12:49:18,824 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-11-16 12:49:18,824 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-16 12:49:18,825 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-16 12:49:18,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-16 12:49:18,825 INFO L130 BoogieDeclarations]: Found specification of procedure unbind_from_irqhandler [2022-11-16 12:49:18,825 INFO L138 BoogieDeclarations]: Found implementation of procedure unbind_from_irqhandler [2022-11-16 12:49:18,825 INFO L130 BoogieDeclarations]: Found specification of procedure get_zeroed_page [2022-11-16 12:49:18,825 INFO L138 BoogieDeclarations]: Found implementation of procedure get_zeroed_page [2022-11-16 12:49:18,825 INFO L130 BoogieDeclarations]: Found specification of procedure netback_changed [2022-11-16 12:49:18,826 INFO L138 BoogieDeclarations]: Found implementation of procedure netback_changed [2022-11-16 12:49:18,826 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_poll_controller [2022-11-16 12:49:18,826 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_poll_controller [2022-11-16 12:49:18,826 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_insert [2022-11-16 12:49:18,826 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_insert [2022-11-16 12:49:18,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:49:18,826 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-16 12:49:18,826 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-16 12:49:18,827 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-16 12:49:18,827 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-16 12:49:18,827 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2022-11-16 12:49:18,827 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2022-11-16 12:49:18,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-16 12:49:18,827 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-16 12:49:18,827 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_select_queue [2022-11-16 12:49:18,828 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_select_queue [2022-11-16 12:49:18,828 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_end_access [2022-11-16 12:49:18,828 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_end_access [2022-11-16 12:49:18,828 INFO L130 BoogieDeclarations]: Found specification of procedure skb_get [2022-11-16 12:49:18,828 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_get [2022-11-16 12:49:18,828 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-16 12:49:18,828 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-16 12:49:18,829 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-16 12:49:18,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-16 12:49:18,829 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_get_rx_ref [2022-11-16 12:49:18,829 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_get_rx_ref [2022-11-16 12:49:18,829 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-16 12:49:18,829 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-16 12:49:18,829 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2022-11-16 12:49:18,829 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2022-11-16 12:49:18,830 INFO L130 BoogieDeclarations]: Found specification of procedure skb_add_rx_frag [2022-11-16 12:49:18,830 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_add_rx_frag [2022-11-16 12:49:18,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:49:18,830 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2022-11-16 12:49:18,830 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2022-11-16 12:49:18,830 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-11-16 12:49:18,830 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-11-16 12:49:18,831 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-16 12:49:18,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-16 12:49:18,831 INFO L130 BoogieDeclarations]: Found specification of procedure get_id_from_freelist [2022-11-16 12:49:18,831 INFO L138 BoogieDeclarations]: Found implementation of procedure get_id_from_freelist [2022-11-16 12:49:18,831 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2022-11-16 12:49:18,831 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2022-11-16 12:49:18,831 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_fix_features [2022-11-16 12:49:18,832 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_fix_features [2022-11-16 12:49:18,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 12:49:18,832 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-16 12:49:18,832 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-16 12:49:18,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:49:18,832 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-16 12:49:18,832 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-16 12:49:18,833 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_next [2022-11-16 12:49:18,834 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_next [2022-11-16 12:49:18,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 12:49:18,834 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2022-11-16 12:49:18,835 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2022-11-16 12:49:18,835 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-11-16 12:49:18,835 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-11-16 12:49:18,835 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-11-16 12:49:18,835 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-11-16 12:49:18,835 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-11-16 12:49:18,835 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-11-16 12:49:18,836 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2022-11-16 12:49:18,836 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2022-11-16 12:49:18,836 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2022-11-16 12:49:18,836 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2022-11-16 12:49:18,836 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-16 12:49:18,836 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-16 12:49:18,836 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2022-11-16 12:49:18,837 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2022-11-16 12:49:18,837 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_grant_foreign_access_ref [2022-11-16 12:49:18,837 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_grant_foreign_access_ref [2022-11-16 12:49:18,837 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-16 12:49:18,837 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-16 12:49:18,837 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_set_features [2022-11-16 12:49:18,837 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_set_features [2022-11-16 12:49:18,837 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-11-16 12:49:18,838 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-11-16 12:49:18,838 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-16 12:49:18,838 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-16 12:49:18,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:49:18,838 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-11-16 12:49:18,838 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-11-16 12:49:18,838 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2022-11-16 12:49:18,839 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2022-11-16 12:49:18,839 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_free_evtchn [2022-11-16 12:49:18,839 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_free_evtchn [2022-11-16 12:49:18,839 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_get_rx_skb [2022-11-16 12:49:18,839 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_get_rx_skb [2022-11-16 12:49:18,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:49:18,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:49:18,839 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_tx_buf_gc [2022-11-16 12:49:18,840 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_tx_buf_gc [2022-11-16 12:49:18,840 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-11-16 12:49:18,840 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-11-16 12:49:18,840 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-16 12:49:18,840 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-16 12:49:19,755 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:49:19,758 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:49:20,665 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-16 12:49:25,387 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:49:25,410 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:49:25,410 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 12:49:25,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:49:25 BoogieIcfgContainer [2022-11-16 12:49:25,415 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:49:25,420 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:49:25,423 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:49:25,427 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:49:25,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:49:14" (1/3) ... [2022-11-16 12:49:25,428 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52fbf914 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:49:25, skipping insertion in model container [2022-11-16 12:49:25,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:49:18" (2/3) ... [2022-11-16 12:49:25,429 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52fbf914 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:49:25, skipping insertion in model container [2022-11-16 12:49:25,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:49:25" (3/3) ... [2022-11-16 12:49:25,434 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 [2022-11-16 12:49:25,465 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:49:25,465 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 12:49:25,579 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:49:25,589 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;@602e8e4b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:49:25,589 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 12:49:25,598 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) [2022-11-16 12:49:25,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-11-16 12:49:25,647 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:49:25,648 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] [2022-11-16 12:49:25,649 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:49:25,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:49:25,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1905505513, now seen corresponding path program 1 times [2022-11-16 12:49:25,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:49:25,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104710573] [2022-11-16 12:49:25,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:49:25,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:49:26,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:26,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:49:26,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:26,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 12:49:26,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:26,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 12:49:26,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:26,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 12:49:26,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:26,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 12:49:26,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:26,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:49:26,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:26,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-16 12:49:26,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:26,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-16 12:49:26,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:26,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 12:49:26,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:26,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-16 12:49:26,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:26,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-16 12:49:26,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:26,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-16 12:49:26,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:26,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-16 12:49:26,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:26,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-16 12:49:26,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:26,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-16 12:49:26,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:26,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-11-16 12:49:26,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:26,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-16 12:49:26,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:26,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:49:26,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:26,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-16 12:49:26,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:26,918 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2022-11-16 12:49:26,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:49:26,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104710573] [2022-11-16 12:49:26,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104710573] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:49:26,923 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:49:26,923 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:49:26,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037125167] [2022-11-16 12:49:26,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:49:26,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:49:26,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:49:26,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:49:26,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:49:26,982 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) [2022-11-16 12:49:36,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:49:36,400 INFO L93 Difference]: Finished difference Result 4612 states and 6476 transitions. [2022-11-16 12:49:36,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:49:36,403 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 [2022-11-16 12:49:36,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:49:36,459 INFO L225 Difference]: With dead ends: 4612 [2022-11-16 12:49:36,460 INFO L226 Difference]: Without dead ends: 2966 [2022-11-16 12:49:36,477 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 [2022-11-16 12:49:36,481 INFO L413 NwaCegarLoop]: 1702 mSDtfsCounter, 3188 mSDsluCounter, 3854 mSDsCounter, 0 mSdLazyCounter, 4071 mSolverCounterSat, 1823 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3426 SdHoareTripleChecker+Valid, 5556 SdHoareTripleChecker+Invalid, 5894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1823 IncrementalHoareTripleChecker+Valid, 4071 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2022-11-16 12:49:36,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3426 Valid, 5556 Invalid, 5894 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1823 Valid, 4071 Invalid, 0 Unknown, 0 Unchecked, 8.7s Time] [2022-11-16 12:49:36,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2966 states. [2022-11-16 12:49:36,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2966 to 2526. [2022-11-16 12:49:36,849 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) [2022-11-16 12:49:36,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2526 states to 2526 states and 3444 transitions. [2022-11-16 12:49:36,872 INFO L78 Accepts]: Start accepts. Automaton has 2526 states and 3444 transitions. Word has length 153 [2022-11-16 12:49:36,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:49:36,873 INFO L495 AbstractCegarLoop]: Abstraction has 2526 states and 3444 transitions. [2022-11-16 12:49:36,874 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) [2022-11-16 12:49:36,874 INFO L276 IsEmpty]: Start isEmpty. Operand 2526 states and 3444 transitions. [2022-11-16 12:49:36,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-11-16 12:49:36,895 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:49:36,896 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] [2022-11-16 12:49:36,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:49:36,896 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:49:36,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:49:36,897 INFO L85 PathProgramCache]: Analyzing trace with hash -581928602, now seen corresponding path program 1 times [2022-11-16 12:49:36,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:49:36,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797907975] [2022-11-16 12:49:36,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:49:36,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:49:37,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:37,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:49:37,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:37,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 12:49:37,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:37,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 12:49:37,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:37,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 12:49:37,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:37,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 12:49:37,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:37,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:49:37,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:37,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-16 12:49:37,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:37,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-16 12:49:37,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:37,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 12:49:37,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:37,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-16 12:49:37,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:37,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-16 12:49:37,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:37,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-16 12:49:37,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:37,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-16 12:49:37,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:37,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-16 12:49:37,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:37,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 12:49:37,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:37,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-16 12:49:37,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:37,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-16 12:49:37,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:37,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:49:37,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:37,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-16 12:49:37,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:37,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:49:37,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:37,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-11-16 12:49:37,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:37,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:49:37,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:37,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-11-16 12:49:37,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:37,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-11-16 12:49:37,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:37,611 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2022-11-16 12:49:37,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:49:37,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797907975] [2022-11-16 12:49:37,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797907975] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:49:37,613 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:49:37,613 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:49:37,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390419442] [2022-11-16 12:49:37,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:49:37,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:49:37,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:49:37,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:49:37,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:49:37,620 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) [2022-11-16 12:49:48,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:49:48,169 INFO L93 Difference]: Finished difference Result 6633 states and 9083 transitions. [2022-11-16 12:49:48,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 12:49:48,170 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 [2022-11-16 12:49:48,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:49:48,197 INFO L225 Difference]: With dead ends: 6633 [2022-11-16 12:49:48,197 INFO L226 Difference]: Without dead ends: 4147 [2022-11-16 12:49:48,207 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 [2022-11-16 12:49:48,208 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 [2022-11-16 12:49:48,209 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] [2022-11-16 12:49:48,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4147 states. [2022-11-16 12:49:48,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4147 to 3616. [2022-11-16 12:49:48,406 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) [2022-11-16 12:49:48,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3616 states to 3616 states and 4873 transitions. [2022-11-16 12:49:48,426 INFO L78 Accepts]: Start accepts. Automaton has 3616 states and 4873 transitions. Word has length 162 [2022-11-16 12:49:48,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:49:48,428 INFO L495 AbstractCegarLoop]: Abstraction has 3616 states and 4873 transitions. [2022-11-16 12:49:48,428 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) [2022-11-16 12:49:48,429 INFO L276 IsEmpty]: Start isEmpty. Operand 3616 states and 4873 transitions. [2022-11-16 12:49:48,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-11-16 12:49:48,435 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:49:48,435 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] [2022-11-16 12:49:48,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:49:48,436 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:49:48,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:49:48,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1047050133, now seen corresponding path program 1 times [2022-11-16 12:49:48,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:49:48,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403419891] [2022-11-16 12:49:48,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:49:48,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:49:48,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:49,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:49:49,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:49,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 12:49:49,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:49,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 12:49:49,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:49,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 12:49:49,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:49,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 12:49:49,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:49,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:49:49,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:49,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-16 12:49:49,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:49,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-16 12:49:49,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:49,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 12:49:49,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:49,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-16 12:49:49,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:49,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-16 12:49:49,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:49,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-16 12:49:49,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:49,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-16 12:49:49,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:49,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-16 12:49:49,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:49,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-16 12:49:49,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:49,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-16 12:49:49,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:49,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-16 12:49:49,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:49,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-11-16 12:49:49,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:49,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-16 12:49:49,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:49,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:49:49,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:49,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-16 12:49:49,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:49,266 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 12:49:49,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:49:49,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403419891] [2022-11-16 12:49:49,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403419891] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:49:49,267 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:49:49,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:49:49,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314497576] [2022-11-16 12:49:49,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:49:49,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:49:49,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:49:49,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:49:49,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:49:49,270 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) [2022-11-16 12:49:57,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:49:57,104 INFO L93 Difference]: Finished difference Result 7836 states and 10697 transitions. [2022-11-16 12:49:57,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:49:57,105 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 [2022-11-16 12:49:57,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:49:57,130 INFO L225 Difference]: With dead ends: 7836 [2022-11-16 12:49:57,130 INFO L226 Difference]: Without dead ends: 4264 [2022-11-16 12:49:57,142 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 [2022-11-16 12:49:57,145 INFO L413 NwaCegarLoop]: 1512 mSDtfsCounter, 1076 mSDsluCounter, 5006 mSDsCounter, 0 mSdLazyCounter, 4297 mSolverCounterSat, 941 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1142 SdHoareTripleChecker+Valid, 6518 SdHoareTripleChecker+Invalid, 5238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 941 IncrementalHoareTripleChecker+Valid, 4297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-11-16 12:49:57,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1142 Valid, 6518 Invalid, 5238 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [941 Valid, 4297 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2022-11-16 12:49:57,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4264 states. [2022-11-16 12:49:57,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4264 to 3616. [2022-11-16 12:49:57,351 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) [2022-11-16 12:49:57,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3616 states to 3616 states and 4865 transitions. [2022-11-16 12:49:57,367 INFO L78 Accepts]: Start accepts. Automaton has 3616 states and 4865 transitions. Word has length 180 [2022-11-16 12:49:57,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:49:57,369 INFO L495 AbstractCegarLoop]: Abstraction has 3616 states and 4865 transitions. [2022-11-16 12:49:57,369 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) [2022-11-16 12:49:57,370 INFO L276 IsEmpty]: Start isEmpty. Operand 3616 states and 4865 transitions. [2022-11-16 12:49:57,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-16 12:49:57,375 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:49:57,377 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] [2022-11-16 12:49:57,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:49:57,378 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:49:57,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:49:57,379 INFO L85 PathProgramCache]: Analyzing trace with hash -158163191, now seen corresponding path program 1 times [2022-11-16 12:49:57,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:49:57,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550655147] [2022-11-16 12:49:57,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:49:57,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:49:57,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:57,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:49:57,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:57,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 12:49:57,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:58,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 12:49:58,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:58,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 12:49:58,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:58,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 12:49:58,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:58,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:49:58,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:58,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-16 12:49:58,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:58,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-16 12:49:58,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:58,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 12:49:58,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:58,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-16 12:49:58,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:58,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-16 12:49:58,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:58,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-16 12:49:58,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:58,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-16 12:49:58,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:58,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-16 12:49:58,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:58,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-16 12:49:58,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:58,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-16 12:49:58,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:58,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-11-16 12:49:58,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:58,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-16 12:49:58,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:58,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-11-16 12:49:58,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:58,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:49:58,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:58,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-11-16 12:49:58,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:58,244 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2022-11-16 12:49:58,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:49:58,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550655147] [2022-11-16 12:49:58,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550655147] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:49:58,245 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:49:58,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:49:58,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025102258] [2022-11-16 12:49:58,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:49:58,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:49:58,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:49:58,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:49:58,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:49:58,247 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) [2022-11-16 12:50:08,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:50:08,152 INFO L93 Difference]: Finished difference Result 7337 states and 10110 transitions. [2022-11-16 12:50:08,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:50:08,153 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 [2022-11-16 12:50:08,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:50:08,196 INFO L225 Difference]: With dead ends: 7337 [2022-11-16 12:50:08,197 INFO L226 Difference]: Without dead ends: 7334 [2022-11-16 12:50:08,203 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 [2022-11-16 12:50:08,203 INFO L413 NwaCegarLoop]: 1758 mSDtfsCounter, 3266 mSDsluCounter, 3919 mSDsCounter, 0 mSdLazyCounter, 4285 mSolverCounterSat, 1836 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3502 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, 9.3s IncrementalHoareTripleChecker+Time [2022-11-16 12:50:08,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3502 Valid, 5677 Invalid, 6121 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1836 Valid, 4285 Invalid, 0 Unknown, 0 Unchecked, 9.3s Time] [2022-11-16 12:50:08,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7334 states. [2022-11-16 12:50:08,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7334 to 6245. [2022-11-16 12:50:08,654 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) [2022-11-16 12:50:08,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6245 states to 6245 states and 8428 transitions. [2022-11-16 12:50:08,686 INFO L78 Accepts]: Start accepts. Automaton has 6245 states and 8428 transitions. Word has length 185 [2022-11-16 12:50:08,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:50:08,688 INFO L495 AbstractCegarLoop]: Abstraction has 6245 states and 8428 transitions. [2022-11-16 12:50:08,689 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) [2022-11-16 12:50:08,689 INFO L276 IsEmpty]: Start isEmpty. Operand 6245 states and 8428 transitions. [2022-11-16 12:50:08,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2022-11-16 12:50:08,703 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:50:08,703 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] [2022-11-16 12:50:08,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:50:08,704 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:50:08,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:50:08,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1265613920, now seen corresponding path program 1 times [2022-11-16 12:50:08,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:50:08,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631982150] [2022-11-16 12:50:08,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:50:08,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:50:08,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:09,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:50:09,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:09,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 12:50:09,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:09,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 12:50:09,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:09,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 12:50:09,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:09,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 12:50:09,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:09,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:50:09,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:09,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-16 12:50:09,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:09,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-16 12:50:09,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:09,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 12:50:09,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:09,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-16 12:50:09,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:09,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-16 12:50:09,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:09,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-16 12:50:09,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:09,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-16 12:50:09,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:09,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-16 12:50:09,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:09,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-16 12:50:09,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:09,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-16 12:50:09,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:09,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-16 12:50:09,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:09,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:50:09,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:09,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-16 12:50:09,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:09,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-16 12:50:09,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:09,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-11-16 12:50:09,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:09,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-11-16 12:50:09,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:09,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-11-16 12:50:09,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:09,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-11-16 12:50:09,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:09,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-11-16 12:50:09,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:09,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-11-16 12:50:09,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:09,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:50:09,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:09,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-11-16 12:50:09,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:09,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:50:09,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:09,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-11-16 12:50:09,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:09,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:50:09,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:09,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-11-16 12:50:09,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:09,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-11-16 12:50:09,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:09,766 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 305 trivial. 0 not checked. [2022-11-16 12:50:09,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:50:09,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631982150] [2022-11-16 12:50:09,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631982150] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:50:09,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [703587840] [2022-11-16 12:50:09,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:50:09,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:50:09,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:50:09,774 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:50:09,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 12:50:10,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:10,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 2911 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 12:50:10,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:50:10,984 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2022-11-16 12:50:10,984 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:50:10,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [703587840] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:50:10,984 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:50:10,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2022-11-16 12:50:10,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497315016] [2022-11-16 12:50:10,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:50:10,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:50:10,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:50:10,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:50:10,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:50:10,986 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) [2022-11-16 12:50:11,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:50:11,649 INFO L93 Difference]: Finished difference Result 15117 states and 20424 transitions. [2022-11-16 12:50:11,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:50:11,649 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 [2022-11-16 12:50:11,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:50:11,705 INFO L225 Difference]: With dead ends: 15117 [2022-11-16 12:50:11,706 INFO L226 Difference]: Without dead ends: 8924 [2022-11-16 12:50:11,728 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 [2022-11-16 12:50:11,729 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 [2022-11-16 12:50:11,732 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] [2022-11-16 12:50:11,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8924 states. [2022-11-16 12:50:12,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8924 to 8879. [2022-11-16 12:50:12,218 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) [2022-11-16 12:50:12,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8879 states to 8879 states and 11935 transitions. [2022-11-16 12:50:12,254 INFO L78 Accepts]: Start accepts. Automaton has 8879 states and 11935 transitions. Word has length 254 [2022-11-16 12:50:12,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:50:12,255 INFO L495 AbstractCegarLoop]: Abstraction has 8879 states and 11935 transitions. [2022-11-16 12:50:12,255 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) [2022-11-16 12:50:12,256 INFO L276 IsEmpty]: Start isEmpty. Operand 8879 states and 11935 transitions. [2022-11-16 12:50:12,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2022-11-16 12:50:12,277 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:50:12,277 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] [2022-11-16 12:50:12,294 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 12:50:12,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:50:12,490 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:50:12,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:50:12,491 INFO L85 PathProgramCache]: Analyzing trace with hash 400465289, now seen corresponding path program 1 times [2022-11-16 12:50:12,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:50:12,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077650892] [2022-11-16 12:50:12,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:50:12,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:50:12,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:13,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:50:13,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:13,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 12:50:13,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:13,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 12:50:13,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:13,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 12:50:13,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:13,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 12:50:13,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:13,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:50:13,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:13,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-16 12:50:13,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:13,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-16 12:50:13,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:13,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 12:50:13,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:13,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-16 12:50:13,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:13,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-16 12:50:13,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:13,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-16 12:50:13,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:13,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-16 12:50:13,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:13,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-16 12:50:13,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:13,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-16 12:50:13,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:13,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-16 12:50:13,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:13,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-16 12:50:13,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:13,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:50:13,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:13,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-16 12:50:13,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:13,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-16 12:50:13,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:13,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-11-16 12:50:13,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:13,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-11-16 12:50:13,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:13,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-11-16 12:50:13,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:13,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2022-11-16 12:50:13,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:13,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-11-16 12:50:13,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:13,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-11-16 12:50:13,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:13,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:50:13,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:13,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-11-16 12:50:13,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:13,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:50:13,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:13,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-11-16 12:50:13,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:13,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:50:13,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:13,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-11-16 12:50:13,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:13,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2022-11-16 12:50:13,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:13,324 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2022-11-16 12:50:13,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:50:13,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077650892] [2022-11-16 12:50:13,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077650892] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:50:13,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:50:13,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:50:13,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950888765] [2022-11-16 12:50:13,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:50:13,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:50:13,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:50:13,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:50:13,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:50:13,327 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) [2022-11-16 12:50:21,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:50:21,635 INFO L93 Difference]: Finished difference Result 19425 states and 26448 transitions. [2022-11-16 12:50:21,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:50:21,636 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 [2022-11-16 12:50:21,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:50:21,690 INFO L225 Difference]: With dead ends: 19425 [2022-11-16 12:50:21,690 INFO L226 Difference]: Without dead ends: 10598 [2022-11-16 12:50:21,725 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 [2022-11-16 12:50:21,726 INFO L413 NwaCegarLoop]: 1273 mSDtfsCounter, 2045 mSDsluCounter, 3880 mSDsCounter, 0 mSdLazyCounter, 4447 mSolverCounterSat, 1531 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2176 SdHoareTripleChecker+Valid, 5153 SdHoareTripleChecker+Invalid, 5978 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1531 IncrementalHoareTripleChecker+Valid, 4447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-11-16 12:50:21,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2176 Valid, 5153 Invalid, 5978 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1531 Valid, 4447 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2022-11-16 12:50:21,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10598 states. [2022-11-16 12:50:22,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10598 to 9013. [2022-11-16 12:50:22,565 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) [2022-11-16 12:50:22,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9013 states to 9013 states and 12136 transitions. [2022-11-16 12:50:22,602 INFO L78 Accepts]: Start accepts. Automaton has 9013 states and 12136 transitions. Word has length 273 [2022-11-16 12:50:22,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:50:22,603 INFO L495 AbstractCegarLoop]: Abstraction has 9013 states and 12136 transitions. [2022-11-16 12:50:22,604 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) [2022-11-16 12:50:22,604 INFO L276 IsEmpty]: Start isEmpty. Operand 9013 states and 12136 transitions. [2022-11-16 12:50:22,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2022-11-16 12:50:22,626 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:50:22,626 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] [2022-11-16 12:50:22,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 12:50:22,627 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:50:22,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:50:22,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1234671279, now seen corresponding path program 1 times [2022-11-16 12:50:22,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:50:22,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090732070] [2022-11-16 12:50:22,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:50:22,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:50:22,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:23,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:50:23,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:23,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 12:50:23,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:23,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 12:50:23,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:23,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 12:50:23,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:23,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 12:50:23,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:23,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:50:23,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:23,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-16 12:50:23,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:23,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-16 12:50:23,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:23,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 12:50:23,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:23,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-16 12:50:23,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:23,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-16 12:50:23,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:23,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-16 12:50:23,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:23,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-16 12:50:23,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:23,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-16 12:50:23,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:23,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-16 12:50:23,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:23,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-16 12:50:23,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:23,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-16 12:50:23,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:23,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:50:23,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:23,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-16 12:50:23,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:23,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-16 12:50:23,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:23,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-11-16 12:50:23,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:23,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-11-16 12:50:23,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:23,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-11-16 12:50:23,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:23,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-11-16 12:50:23,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:23,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-11-16 12:50:23,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:23,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-11-16 12:50:23,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:23,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:50:23,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:23,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-11-16 12:50:23,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:23,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:50:23,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:23,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-11-16 12:50:23,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:23,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:50:23,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:23,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2022-11-16 12:50:23,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:23,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2022-11-16 12:50:23,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:23,542 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2022-11-16 12:50:23,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:50:23,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090732070] [2022-11-16 12:50:23,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090732070] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:50:23,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [354060242] [2022-11-16 12:50:23,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:50:23,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:50:23,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:50:23,545 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:50:23,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 12:50:24,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:24,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 2989 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 12:50:24,772 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:50:24,845 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 17 proven. 1 refuted. 0 times theorem prover too weak. 307 trivial. 0 not checked. [2022-11-16 12:50:24,845 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:50:25,036 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2022-11-16 12:50:25,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [354060242] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:50:25,036 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 12:50:25,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2022-11-16 12:50:25,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680367336] [2022-11-16 12:50:25,037 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 12:50:25,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 12:50:25,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:50:25,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 12:50:25,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:50:25,039 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) [2022-11-16 12:50:37,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:50:37,012 INFO L93 Difference]: Finished difference Result 22125 states and 30771 transitions. [2022-11-16 12:50:37,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 12:50:37,013 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 [2022-11-16 12:50:37,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:50:37,074 INFO L225 Difference]: With dead ends: 22125 [2022-11-16 12:50:37,074 INFO L226 Difference]: Without dead ends: 13164 [2022-11-16 12:50:37,108 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 [2022-11-16 12:50:37,109 INFO L413 NwaCegarLoop]: 1819 mSDtfsCounter, 2588 mSDsluCounter, 8600 mSDsCounter, 0 mSdLazyCounter, 7918 mSolverCounterSat, 1758 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2892 SdHoareTripleChecker+Valid, 10419 SdHoareTripleChecker+Invalid, 9676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1758 IncrementalHoareTripleChecker+Valid, 7918 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:50:37,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2892 Valid, 10419 Invalid, 9676 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1758 Valid, 7918 Invalid, 0 Unknown, 0 Unchecked, 11.0s Time] [2022-11-16 12:50:37,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13164 states. [2022-11-16 12:50:37,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13164 to 9033. [2022-11-16 12:50:37,778 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) [2022-11-16 12:50:37,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9033 states to 9033 states and 12160 transitions. [2022-11-16 12:50:37,812 INFO L78 Accepts]: Start accepts. Automaton has 9033 states and 12160 transitions. Word has length 277 [2022-11-16 12:50:37,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:50:37,813 INFO L495 AbstractCegarLoop]: Abstraction has 9033 states and 12160 transitions. [2022-11-16 12:50:37,813 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) [2022-11-16 12:50:37,814 INFO L276 IsEmpty]: Start isEmpty. Operand 9033 states and 12160 transitions. [2022-11-16 12:50:37,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2022-11-16 12:50:37,835 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:50:37,836 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] [2022-11-16 12:50:37,852 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 12:50:38,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:50:38,048 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:50:38,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:50:38,048 INFO L85 PathProgramCache]: Analyzing trace with hash -114046788, now seen corresponding path program 1 times [2022-11-16 12:50:38,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:50:38,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697485761] [2022-11-16 12:50:38,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:50:38,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:50:38,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:40,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:50:40,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:40,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 12:50:40,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:40,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 12:50:40,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:40,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 12:50:40,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:40,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 12:50:40,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:40,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:50:40,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:40,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-16 12:50:40,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:40,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-16 12:50:40,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:40,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 12:50:40,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:40,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-16 12:50:40,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:40,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-16 12:50:40,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:40,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-16 12:50:40,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:40,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-16 12:50:40,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:40,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-16 12:50:40,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:40,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-16 12:50:40,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:40,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-16 12:50:40,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:40,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-16 12:50:40,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:40,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:50:40,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:41,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-16 12:50:41,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:41,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-16 12:50:41,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:41,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-11-16 12:50:41,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:41,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-11-16 12:50:41,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:41,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2022-11-16 12:50:41,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:41,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-11-16 12:50:41,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:41,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-11-16 12:50:41,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:41,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-11-16 12:50:41,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:41,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:50:41,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:41,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-11-16 12:50:41,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:41,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:50:41,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:41,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2022-11-16 12:50:41,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:41,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:50:41,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:41,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-11-16 12:50:41,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:41,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-11-16 12:50:41,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:41,179 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2022-11-16 12:50:41,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:50:41,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697485761] [2022-11-16 12:50:41,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697485761] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:50:41,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1515195470] [2022-11-16 12:50:41,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:50:41,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:50:41,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:50:41,181 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:50:41,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 12:50:42,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:42,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 2988 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-16 12:50:42,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:50:42,400 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 307 trivial. 0 not checked. [2022-11-16 12:50:42,401 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:50:42,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1515195470] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:50:42,401 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:50:42,401 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [16] total 19 [2022-11-16 12:50:42,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321999966] [2022-11-16 12:50:42,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:50:42,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:50:42,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:50:42,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:50:42,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=306, Unknown=0, NotChecked=0, Total=342 [2022-11-16 12:50:42,405 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) [2022-11-16 12:50:43,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:50:43,195 INFO L93 Difference]: Finished difference Result 19192 states and 26083 transitions. [2022-11-16 12:50:43,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:50:43,196 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 [2022-11-16 12:50:43,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:50:43,240 INFO L225 Difference]: With dead ends: 19192 [2022-11-16 12:50:43,240 INFO L226 Difference]: Without dead ends: 10211 [2022-11-16 12:50:43,268 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 [2022-11-16 12:50:43,268 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 [2022-11-16 12:50:43,269 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] [2022-11-16 12:50:43,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10211 states. [2022-11-16 12:50:43,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10211 to 9037. [2022-11-16 12:50:43,919 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) [2022-11-16 12:50:43,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9037 states to 9037 states and 12164 transitions. [2022-11-16 12:50:43,952 INFO L78 Accepts]: Start accepts. Automaton has 9037 states and 12164 transitions. Word has length 278 [2022-11-16 12:50:43,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:50:43,954 INFO L495 AbstractCegarLoop]: Abstraction has 9037 states and 12164 transitions. [2022-11-16 12:50:43,955 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) [2022-11-16 12:50:43,955 INFO L276 IsEmpty]: Start isEmpty. Operand 9037 states and 12164 transitions. [2022-11-16 12:50:43,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2022-11-16 12:50:43,977 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:50:43,978 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] [2022-11-16 12:50:43,991 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 12:50:44,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:50:44,189 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:50:44,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:50:44,189 INFO L85 PathProgramCache]: Analyzing trace with hash 572260347, now seen corresponding path program 2 times [2022-11-16 12:50:44,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:50:44,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557118020] [2022-11-16 12:50:44,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:50:44,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:50:44,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:46,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:50:46,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:46,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 12:50:46,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:46,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 12:50:46,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:46,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 12:50:46,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:46,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 12:50:46,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:46,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:50:46,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:46,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-16 12:50:46,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:46,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-16 12:50:46,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:46,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 12:50:46,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:46,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-16 12:50:46,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:46,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-16 12:50:46,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:46,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-16 12:50:46,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:46,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-16 12:50:46,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:46,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-16 12:50:46,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:46,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-16 12:50:46,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:46,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-16 12:50:46,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:46,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-16 12:50:46,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:47,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:50:47,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:47,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-16 12:50:47,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:47,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-16 12:50:47,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:47,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-11-16 12:50:47,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:47,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2022-11-16 12:50:47,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:47,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-11-16 12:50:47,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:47,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2022-11-16 12:50:47,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:47,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2022-11-16 12:50:47,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:47,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-11-16 12:50:47,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:47,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:50:47,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:47,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-11-16 12:50:47,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:47,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:50:47,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:47,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-11-16 12:50:47,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:47,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:50:47,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:47,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2022-11-16 12:50:47,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:47,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2022-11-16 12:50:47,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:47,262 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2022-11-16 12:50:47,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:50:47,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557118020] [2022-11-16 12:50:47,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557118020] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:50:47,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1203966151] [2022-11-16 12:50:47,263 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:50:47,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:50:47,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:50:47,264 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:50:47,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 12:50:49,040 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 12:50:49,040 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:50:49,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 3043 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-16 12:50:49,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:50:49,130 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2022-11-16 12:50:49,131 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:50:49,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1203966151] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:50:49,131 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:50:49,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [16] total 18 [2022-11-16 12:50:49,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377897521] [2022-11-16 12:50:49,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:50:49,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:50:49,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:50:49,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:50:49,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:50:49,133 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) [2022-11-16 12:50:49,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:50:49,677 INFO L93 Difference]: Finished difference Result 18052 states and 24364 transitions. [2022-11-16 12:50:49,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 12:50:49,678 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 [2022-11-16 12:50:49,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:50:49,720 INFO L225 Difference]: With dead ends: 18052 [2022-11-16 12:50:49,720 INFO L226 Difference]: Without dead ends: 9044 [2022-11-16 12:50:49,749 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 [2022-11-16 12:50:49,752 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 [2022-11-16 12:50:49,753 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] [2022-11-16 12:50:49,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9044 states. [2022-11-16 12:50:50,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9044 to 9044. [2022-11-16 12:50:50,369 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) [2022-11-16 12:50:50,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9044 states to 9044 states and 12171 transitions. [2022-11-16 12:50:50,401 INFO L78 Accepts]: Start accepts. Automaton has 9044 states and 12171 transitions. Word has length 285 [2022-11-16 12:50:50,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:50:50,402 INFO L495 AbstractCegarLoop]: Abstraction has 9044 states and 12171 transitions. [2022-11-16 12:50:50,402 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) [2022-11-16 12:50:50,402 INFO L276 IsEmpty]: Start isEmpty. Operand 9044 states and 12171 transitions. [2022-11-16 12:50:50,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2022-11-16 12:50:50,422 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:50:50,422 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] [2022-11-16 12:50:50,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-16 12:50:50,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-16 12:50:50,635 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:50:50,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:50:50,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1108876325, now seen corresponding path program 1 times [2022-11-16 12:50:50,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:50:50,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757810687] [2022-11-16 12:50:50,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:50:50,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:50:50,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:52,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:50:52,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:52,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 12:50:52,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:52,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 12:50:52,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:52,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 12:50:52,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:52,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 12:50:52,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:52,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:50:52,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:52,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-16 12:50:52,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:52,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-16 12:50:52,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:52,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 12:50:52,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:52,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-16 12:50:52,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:52,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-16 12:50:52,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:52,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-16 12:50:52,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:52,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-16 12:50:52,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:52,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-16 12:50:52,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:52,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-16 12:50:52,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:52,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-16 12:50:52,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:52,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-16 12:50:52,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:53,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:50:53,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:53,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-11-16 12:50:53,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:53,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-11-16 12:50:53,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:53,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-11-16 12:50:53,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:53,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-11-16 12:50:53,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:53,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-11-16 12:50:53,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:53,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-11-16 12:50:53,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:53,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-11-16 12:50:53,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:53,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-11-16 12:50:53,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:53,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:50:53,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:53,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-11-16 12:50:53,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:53,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:50:53,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:53,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2022-11-16 12:50:53,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:53,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:50:53,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:53,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-11-16 12:50:53,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:53,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2022-11-16 12:50:53,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:53,245 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2022-11-16 12:50:53,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:50:53,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757810687] [2022-11-16 12:50:53,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757810687] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:50:53,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1035164888] [2022-11-16 12:50:53,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:50:53,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:50:53,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:50:53,247 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:50:53,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-16 12:50:54,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:54,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 3088 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-16 12:50:54,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:50:54,579 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 122 proven. 1 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2022-11-16 12:50:54,580 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:50:54,835 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2022-11-16 12:50:54,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1035164888] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:50:54,835 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 12:50:54,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 5, 5] total 22 [2022-11-16 12:50:54,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139454370] [2022-11-16 12:50:54,836 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 12:50:54,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-16 12:50:54,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:50:54,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-16 12:50:54,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2022-11-16 12:50:54,838 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) [2022-11-16 12:51:16,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:51:16,522 INFO L93 Difference]: Finished difference Result 21960 states and 30601 transitions. [2022-11-16 12:51:16,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-16 12:51:16,522 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 [2022-11-16 12:51:16,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:51:16,589 INFO L225 Difference]: With dead ends: 21960 [2022-11-16 12:51:16,589 INFO L226 Difference]: Without dead ends: 12945 [2022-11-16 12:51:16,628 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 [2022-11-16 12:51:16,629 INFO L413 NwaCegarLoop]: 1985 mSDtfsCounter, 3945 mSDsluCounter, 24062 mSDsCounter, 0 mSdLazyCounter, 19471 mSolverCounterSat, 2474 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.6s 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, 19.9s IncrementalHoareTripleChecker+Time [2022-11-16 12:51:16,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4074 Valid, 26047 Invalid, 21945 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2474 Valid, 19471 Invalid, 0 Unknown, 0 Unchecked, 19.9s Time] [2022-11-16 12:51:16,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12945 states. [2022-11-16 12:51:17,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12945 to 9083. [2022-11-16 12:51:17,488 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) [2022-11-16 12:51:17,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9083 states to 9083 states and 12218 transitions. [2022-11-16 12:51:17,522 INFO L78 Accepts]: Start accepts. Automaton has 9083 states and 12218 transitions. Word has length 288 [2022-11-16 12:51:17,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:51:17,522 INFO L495 AbstractCegarLoop]: Abstraction has 9083 states and 12218 transitions. [2022-11-16 12:51:17,523 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) [2022-11-16 12:51:17,523 INFO L276 IsEmpty]: Start isEmpty. Operand 9083 states and 12218 transitions. [2022-11-16 12:51:17,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2022-11-16 12:51:17,542 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:51:17,542 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] [2022-11-16 12:51:17,564 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-16 12:51:17,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-16 12:51:17,755 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:51:17,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:51:17,756 INFO L85 PathProgramCache]: Analyzing trace with hash 157724450, now seen corresponding path program 1 times [2022-11-16 12:51:17,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:51:17,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426154141] [2022-11-16 12:51:17,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:51:17,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:51:17,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:18,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:51:18,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:18,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 12:51:18,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:18,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 12:51:18,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:18,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 12:51:18,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:18,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 12:51:18,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:18,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:51:18,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:18,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-16 12:51:18,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:18,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-16 12:51:18,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:18,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 12:51:18,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:18,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-16 12:51:18,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:18,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-16 12:51:18,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:18,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-16 12:51:18,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:18,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-16 12:51:18,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:18,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-16 12:51:18,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:18,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-16 12:51:18,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:18,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:51:18,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:18,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:51:18,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:18,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-16 12:51:18,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:18,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-16 12:51:18,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:18,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 12:51:18,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:18,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:51:18,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:18,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-16 12:51:18,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:18,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-16 12:51:18,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:18,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-16 12:51:18,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:18,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-16 12:51:18,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:18,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:51:18,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:18,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-16 12:51:18,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:18,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:51:18,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:18,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-16 12:51:18,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:18,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-11-16 12:51:18,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:18,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2022-11-16 12:51:18,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:18,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2022-11-16 12:51:18,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:18,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2022-11-16 12:51:18,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:18,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-11-16 12:51:18,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:18,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:51:18,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:18,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2022-11-16 12:51:18,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:18,522 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2022-11-16 12:51:18,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:51:18,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426154141] [2022-11-16 12:51:18,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426154141] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:51:18,523 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:51:18,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 12:51:18,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727128436] [2022-11-16 12:51:18,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:51:18,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:51:18,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:51:18,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:51:18,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:51:18,528 INFO L87 Difference]: Start difference. First operand 9083 states and 12218 transitions. Second operand has 8 states, 8 states have (on average 21.375) internal successors, (171), 3 states have internal predecessors, (171), 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) [2022-11-16 12:51:31,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:51:31,963 INFO L93 Difference]: Finished difference Result 26949 states and 36704 transitions. [2022-11-16 12:51:31,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 12:51:31,964 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.375) internal successors, (171), 3 states have internal predecessors, (171), 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 311 [2022-11-16 12:51:31,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:51:32,038 INFO L225 Difference]: With dead ends: 26949 [2022-11-16 12:51:32,038 INFO L226 Difference]: Without dead ends: 17928 [2022-11-16 12:51:32,064 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 [2022-11-16 12:51:32,065 INFO L413 NwaCegarLoop]: 1942 mSDtfsCounter, 4937 mSDsluCounter, 5321 mSDsCounter, 0 mSdLazyCounter, 6687 mSolverCounterSat, 2949 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5287 SdHoareTripleChecker+Valid, 7263 SdHoareTripleChecker+Invalid, 9636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2949 IncrementalHoareTripleChecker+Valid, 6687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2022-11-16 12:51:32,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5287 Valid, 7263 Invalid, 9636 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2949 Valid, 6687 Invalid, 0 Unknown, 0 Unchecked, 11.7s Time] [2022-11-16 12:51:32,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17928 states. [2022-11-16 12:51:33,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17928 to 15082. [2022-11-16 12:51:33,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15082 states, 10974 states have (on average 1.298523783488245) internal successors, (14250), 11210 states have internal predecessors, (14250), 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) [2022-11-16 12:51:33,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15082 states to 15082 states and 20155 transitions. [2022-11-16 12:51:33,289 INFO L78 Accepts]: Start accepts. Automaton has 15082 states and 20155 transitions. Word has length 311 [2022-11-16 12:51:33,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:51:33,290 INFO L495 AbstractCegarLoop]: Abstraction has 15082 states and 20155 transitions. [2022-11-16 12:51:33,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.375) internal successors, (171), 3 states have internal predecessors, (171), 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) [2022-11-16 12:51:33,290 INFO L276 IsEmpty]: Start isEmpty. Operand 15082 states and 20155 transitions. [2022-11-16 12:51:33,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2022-11-16 12:51:33,458 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:51:33,459 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] [2022-11-16 12:51:33,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 12:51:33,459 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:51:33,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:51:33,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1118283237, now seen corresponding path program 1 times [2022-11-16 12:51:33,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:51:33,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919521597] [2022-11-16 12:51:33,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:51:33,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:51:33,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:33,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:51:33,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:33,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 12:51:33,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:33,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 12:51:33,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:33,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 12:51:33,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:33,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 12:51:33,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:33,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:51:33,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:33,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-16 12:51:33,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:33,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-16 12:51:33,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:33,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 12:51:33,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:33,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-16 12:51:33,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:33,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-16 12:51:33,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:33,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-16 12:51:33,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:33,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-16 12:51:33,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:33,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-16 12:51:34,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:34,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-16 12:51:34,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:34,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-16 12:51:34,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:34,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-11-16 12:51:34,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:34,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-16 12:51:34,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:34,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-11-16 12:51:34,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:34,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:51:34,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:34,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-11-16 12:51:34,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:34,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-11-16 12:51:34,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:34,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-11-16 12:51:34,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:34,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-11-16 12:51:34,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:34,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:51:34,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:34,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-11-16 12:51:34,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:34,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:51:34,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:34,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-11-16 12:51:34,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:34,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-11-16 12:51:34,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:34,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-11-16 12:51:34,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:34,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:51:34,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:34,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:51:34,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:34,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:51:34,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:34,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-16 12:51:34,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:34,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-11-16 12:51:34,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:34,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-16 12:51:34,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:34,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-11-16 12:51:34,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:34,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:51:34,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:34,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2022-11-16 12:51:34,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:34,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2022-11-16 12:51:34,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:34,218 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 359 trivial. 0 not checked. [2022-11-16 12:51:34,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:51:34,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919521597] [2022-11-16 12:51:34,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919521597] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:51:34,219 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:51:34,219 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:51:34,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846896854] [2022-11-16 12:51:34,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:51:34,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:51:34,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:51:34,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:51:34,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:51:34,222 INFO L87 Difference]: Start difference. First operand 15082 states and 20155 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), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-11-16 12:51:42,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:51:42,209 INFO L93 Difference]: Finished difference Result 33057 states and 44810 transitions. [2022-11-16 12:51:42,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 12:51:42,209 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), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 317 [2022-11-16 12:51:42,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:51:42,287 INFO L225 Difference]: With dead ends: 33057 [2022-11-16 12:51:42,287 INFO L226 Difference]: Without dead ends: 18037 [2022-11-16 12:51:42,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:51:42,331 INFO L413 NwaCegarLoop]: 1270 mSDtfsCounter, 2727 mSDsluCounter, 2945 mSDsCounter, 0 mSdLazyCounter, 3813 mSolverCounterSat, 2160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2806 SdHoareTripleChecker+Valid, 4215 SdHoareTripleChecker+Invalid, 5973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2160 IncrementalHoareTripleChecker+Valid, 3813 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-11-16 12:51:42,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2806 Valid, 4215 Invalid, 5973 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2160 Valid, 3813 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2022-11-16 12:51:42,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18037 states. [2022-11-16 12:51:43,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18037 to 15202. [2022-11-16 12:51:43,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15202 states, 11094 states have (on average 1.2952947539210384) internal successors, (14370), 11330 states have internal predecessors, (14370), 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) [2022-11-16 12:51:43,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15202 states to 15202 states and 20275 transitions. [2022-11-16 12:51:43,908 INFO L78 Accepts]: Start accepts. Automaton has 15202 states and 20275 transitions. Word has length 317 [2022-11-16 12:51:43,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:51:43,909 INFO L495 AbstractCegarLoop]: Abstraction has 15202 states and 20275 transitions. [2022-11-16 12:51:43,909 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), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-11-16 12:51:43,910 INFO L276 IsEmpty]: Start isEmpty. Operand 15202 states and 20275 transitions. [2022-11-16 12:51:43,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2022-11-16 12:51:43,934 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:51:43,934 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] [2022-11-16 12:51:43,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 12:51:43,935 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:51:43,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:51:43,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1891095827, now seen corresponding path program 1 times [2022-11-16 12:51:43,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:51:43,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268914647] [2022-11-16 12:51:43,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:51:43,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:51:44,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:44,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:51:44,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:44,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 12:51:44,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:44,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 12:51:44,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:44,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 12:51:44,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:44,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 12:51:44,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:45,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:51:45,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:45,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-16 12:51:45,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:45,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-16 12:51:45,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:45,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 12:51:45,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:45,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-16 12:51:45,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:45,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-16 12:51:45,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:45,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-16 12:51:45,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:45,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-16 12:51:45,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:45,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-16 12:51:45,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:45,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-16 12:51:45,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:45,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-16 12:51:45,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:45,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-11-16 12:51:45,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:45,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-16 12:51:45,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:45,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-11-16 12:51:45,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:45,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:51:45,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:45,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-11-16 12:51:45,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:45,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-11-16 12:51:45,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:45,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-11-16 12:51:45,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:45,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-11-16 12:51:45,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:45,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:51:45,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:45,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-11-16 12:51:45,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:45,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:51:45,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:45,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-11-16 12:51:45,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:45,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-11-16 12:51:45,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:45,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-11-16 12:51:45,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:45,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:51:45,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:45,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:51:45,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:45,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:51:45,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:45,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-16 12:51:45,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:45,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-11-16 12:51:45,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:45,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-16 12:51:45,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:45,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-11-16 12:51:45,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:45,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:51:45,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:45,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2022-11-16 12:51:45,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:45,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2022-11-16 12:51:45,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:45,296 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 359 trivial. 0 not checked. [2022-11-16 12:51:45,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:51:45,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268914647] [2022-11-16 12:51:45,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268914647] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:51:45,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:51:45,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 12:51:45,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885985314] [2022-11-16 12:51:45,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:51:45,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:51:45,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:51:45,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:51:45,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:51:45,299 INFO L87 Difference]: Start difference. First operand 15202 states and 20275 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) [2022-11-16 12:51:54,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:51:54,545 INFO L93 Difference]: Finished difference Result 33165 states and 44864 transitions. [2022-11-16 12:51:54,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 12:51:54,546 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 [2022-11-16 12:51:54,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:51:54,620 INFO L225 Difference]: With dead ends: 33165 [2022-11-16 12:51:54,621 INFO L226 Difference]: Without dead ends: 18025 [2022-11-16 12:51:54,659 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 [2022-11-16 12:51:54,660 INFO L413 NwaCegarLoop]: 1276 mSDtfsCounter, 2469 mSDsluCounter, 4165 mSDsCounter, 0 mSdLazyCounter, 5113 mSolverCounterSat, 1998 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2598 SdHoareTripleChecker+Valid, 5441 SdHoareTripleChecker+Invalid, 7111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1998 IncrementalHoareTripleChecker+Valid, 5113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-11-16 12:51:54,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2598 Valid, 5441 Invalid, 7111 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1998 Valid, 5113 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2022-11-16 12:51:54,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18025 states. [2022-11-16 12:51:55,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18025 to 15226. [2022-11-16 12:51:55,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15226 states, 11118 states have (on average 1.2946573124662708) internal successors, (14394), 11354 states have internal predecessors, (14394), 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) [2022-11-16 12:51:55,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15226 states to 15226 states and 20299 transitions. [2022-11-16 12:51:55,838 INFO L78 Accepts]: Start accepts. Automaton has 15226 states and 20299 transitions. Word has length 317 [2022-11-16 12:51:55,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:51:55,839 INFO L495 AbstractCegarLoop]: Abstraction has 15226 states and 20299 transitions. [2022-11-16 12:51:55,839 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) [2022-11-16 12:51:55,839 INFO L276 IsEmpty]: Start isEmpty. Operand 15226 states and 20299 transitions. [2022-11-16 12:51:55,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2022-11-16 12:51:55,863 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:51:55,863 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] [2022-11-16 12:51:55,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 12:51:55,863 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:51:55,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:51:55,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1223713937, now seen corresponding path program 1 times [2022-11-16 12:51:55,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:51:55,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348708643] [2022-11-16 12:51:55,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:51:55,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:51:56,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:56,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:51:56,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:56,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 12:51:56,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:56,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 12:51:56,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:56,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 12:51:56,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:56,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 12:51:56,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:56,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:51:56,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:56,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-16 12:51:56,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:56,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-16 12:51:56,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:56,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 12:51:56,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:56,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-16 12:51:56,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:56,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-16 12:51:56,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:56,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-16 12:51:56,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:56,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-16 12:51:56,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:56,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-16 12:51:56,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:56,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-16 12:51:56,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:56,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-16 12:51:56,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:56,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-11-16 12:51:56,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:56,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-16 12:51:56,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:56,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-11-16 12:51:56,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:56,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:51:56,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:56,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-11-16 12:51:56,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:56,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-11-16 12:51:56,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:56,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-11-16 12:51:56,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:56,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-11-16 12:51:56,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:56,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:51:56,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:56,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-11-16 12:51:56,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:56,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:51:56,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:56,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-11-16 12:51:56,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:56,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-11-16 12:51:56,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:56,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-11-16 12:51:56,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:56,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:51:56,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:56,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:51:56,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:56,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:51:56,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:56,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-16 12:51:56,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:56,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-11-16 12:51:56,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:56,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-16 12:51:56,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:56,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-11-16 12:51:56,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:56,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:51:56,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:56,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2022-11-16 12:51:56,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:56,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2022-11-16 12:51:56,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:51:56,825 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 358 trivial. 0 not checked. [2022-11-16 12:51:56,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:51:56,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348708643] [2022-11-16 12:51:56,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348708643] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:51:56,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:51:56,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:51:56,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184062059] [2022-11-16 12:51:56,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:51:56,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:51:56,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:51:56,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:51:56,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:51:56,828 INFO L87 Difference]: Start difference. First operand 15226 states and 20299 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) [2022-11-16 12:52:05,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:52:05,844 INFO L93 Difference]: Finished difference Result 33329 states and 45080 transitions. [2022-11-16 12:52:05,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 12:52:05,845 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 [2022-11-16 12:52:05,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:52:05,911 INFO L225 Difference]: With dead ends: 33329 [2022-11-16 12:52:05,911 INFO L226 Difference]: Without dead ends: 18165 [2022-11-16 12:52:05,949 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 [2022-11-16 12:52:05,950 INFO L413 NwaCegarLoop]: 1278 mSDtfsCounter, 2087 mSDsluCounter, 3910 mSDsCounter, 0 mSdLazyCounter, 4400 mSolverCounterSat, 1566 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2218 SdHoareTripleChecker+Valid, 5188 SdHoareTripleChecker+Invalid, 5966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1566 IncrementalHoareTripleChecker+Valid, 4400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:52:05,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2218 Valid, 5188 Invalid, 5966 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1566 Valid, 4400 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2022-11-16 12:52:05,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18165 states. [2022-11-16 12:52:06,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18165 to 15236. [2022-11-16 12:52:06,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15236 states, 11128 states have (on average 1.294392523364486) internal successors, (14404), 11364 states have internal predecessors, (14404), 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) [2022-11-16 12:52:07,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15236 states to 15236 states and 20309 transitions. [2022-11-16 12:52:07,156 INFO L78 Accepts]: Start accepts. Automaton has 15236 states and 20309 transitions. Word has length 317 [2022-11-16 12:52:07,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:52:07,157 INFO L495 AbstractCegarLoop]: Abstraction has 15236 states and 20309 transitions. [2022-11-16 12:52:07,158 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) [2022-11-16 12:52:07,158 INFO L276 IsEmpty]: Start isEmpty. Operand 15236 states and 20309 transitions. [2022-11-16 12:52:07,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2022-11-16 12:52:07,180 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:52:07,180 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] [2022-11-16 12:52:07,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 12:52:07,181 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:52:07,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:52:07,182 INFO L85 PathProgramCache]: Analyzing trace with hash 101931464, now seen corresponding path program 1 times [2022-11-16 12:52:07,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:52:07,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627886897] [2022-11-16 12:52:07,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:52:07,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:52:07,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:08,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:52:08,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:08,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 12:52:08,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:08,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 12:52:08,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:08,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 12:52:08,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:08,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 12:52:08,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:08,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:52:08,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:08,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-16 12:52:08,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:08,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-16 12:52:08,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:08,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 12:52:08,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:08,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-16 12:52:08,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:08,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-16 12:52:08,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:08,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-16 12:52:08,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:08,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-16 12:52:08,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:08,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-16 12:52:08,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:08,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-16 12:52:08,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:08,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-16 12:52:08,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:08,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-16 12:52:08,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:08,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-11-16 12:52:08,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:08,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-11-16 12:52:08,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:08,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-11-16 12:52:08,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:08,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:52:08,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:08,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-11-16 12:52:08,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:08,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-11-16 12:52:08,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:08,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-11-16 12:52:08,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:08,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-11-16 12:52:08,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:08,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-11-16 12:52:08,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:08,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-11-16 12:52:08,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:08,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-11-16 12:52:08,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:08,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-11-16 12:52:08,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:08,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:52:08,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:08,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-11-16 12:52:08,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:08,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:52:08,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:08,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-11-16 12:52:08,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:08,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:52:08,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:08,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2022-11-16 12:52:08,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:08,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-11-16 12:52:08,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:08,559 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked. [2022-11-16 12:52:08,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:52:08,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627886897] [2022-11-16 12:52:08,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627886897] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:52:08,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [856721809] [2022-11-16 12:52:08,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:52:08,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:52:08,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:52:08,562 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:52:08,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-16 12:52:09,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:09,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 3424 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-16 12:52:09,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:52:09,968 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 127 proven. 50 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2022-11-16 12:52:09,969 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:52:10,301 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 34 proven. 3 refuted. 0 times theorem prover too weak. 387 trivial. 0 not checked. [2022-11-16 12:52:10,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [856721809] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:52:10,302 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 12:52:10,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 6] total 20 [2022-11-16 12:52:10,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680148536] [2022-11-16 12:52:10,303 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 12:52:10,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-16 12:52:10,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:52:10,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-16 12:52:10,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2022-11-16 12:52:10,305 INFO L87 Difference]: Start difference. First operand 15236 states and 20309 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) [2022-11-16 12:52:31,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:52:31,630 INFO L93 Difference]: Finished difference Result 36802 states and 50681 transitions. [2022-11-16 12:52:31,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-16 12:52:31,630 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 [2022-11-16 12:52:31,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:52:31,704 INFO L225 Difference]: With dead ends: 36802 [2022-11-16 12:52:31,704 INFO L226 Difference]: Without dead ends: 21596 [2022-11-16 12:52:31,752 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 [2022-11-16 12:52:31,753 INFO L413 NwaCegarLoop]: 1993 mSDtfsCounter, 3103 mSDsluCounter, 20306 mSDsCounter, 0 mSdLazyCounter, 16520 mSolverCounterSat, 1906 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3236 SdHoareTripleChecker+Valid, 22299 SdHoareTripleChecker+Invalid, 18426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1906 IncrementalHoareTripleChecker+Valid, 16520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.6s IncrementalHoareTripleChecker+Time [2022-11-16 12:52:31,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3236 Valid, 22299 Invalid, 18426 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1906 Valid, 16520 Invalid, 0 Unknown, 0 Unchecked, 18.6s Time] [2022-11-16 12:52:31,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21596 states. [2022-11-16 12:52:33,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21596 to 15280. [2022-11-16 12:52:33,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15280 states, 11166 states have (on average 1.2931219774314884) internal successors, (14439), 11402 states have internal predecessors, (14439), 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) [2022-11-16 12:52:33,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15280 states to 15280 states and 20392 transitions. [2022-11-16 12:52:33,205 INFO L78 Accepts]: Start accepts. Automaton has 15280 states and 20392 transitions. Word has length 316 [2022-11-16 12:52:33,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:52:33,206 INFO L495 AbstractCegarLoop]: Abstraction has 15280 states and 20392 transitions. [2022-11-16 12:52:33,206 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) [2022-11-16 12:52:33,206 INFO L276 IsEmpty]: Start isEmpty. Operand 15280 states and 20392 transitions. [2022-11-16 12:52:33,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2022-11-16 12:52:33,226 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:52:33,227 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] [2022-11-16 12:52:33,237 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-16 12:52:33,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-16 12:52:33,428 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:52:33,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:52:33,428 INFO L85 PathProgramCache]: Analyzing trace with hash -883838267, now seen corresponding path program 1 times [2022-11-16 12:52:33,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:52:33,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765364430] [2022-11-16 12:52:33,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:52:33,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:52:33,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:33,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:52:33,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:34,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 12:52:34,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:34,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 12:52:34,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:34,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 12:52:34,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:34,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 12:52:34,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:34,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:52:34,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:34,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-16 12:52:34,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:34,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-16 12:52:34,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:34,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 12:52:34,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:34,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-16 12:52:34,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:34,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-16 12:52:34,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:34,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-16 12:52:34,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:34,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-16 12:52:34,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:34,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-16 12:52:34,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:34,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-16 12:52:34,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:34,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-16 12:52:34,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:34,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-16 12:52:34,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:34,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-11-16 12:52:34,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:34,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-11-16 12:52:34,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:34,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:52:34,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:34,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-11-16 12:52:34,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:34,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-11-16 12:52:34,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:34,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-11-16 12:52:34,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:34,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-11-16 12:52:34,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:34,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:52:34,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:34,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2022-11-16 12:52:34,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:34,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:52:34,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:34,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-11-16 12:52:34,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:34,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-11-16 12:52:34,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:34,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-11-16 12:52:34,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:34,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:52:34,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:34,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:52:34,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:34,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:52:34,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:34,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-16 12:52:34,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:34,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-11-16 12:52:34,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:34,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-16 12:52:34,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:34,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-11-16 12:52:34,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:34,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:52:34,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:34,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2022-11-16 12:52:34,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:34,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2022-11-16 12:52:34,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:34,344 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2022-11-16 12:52:34,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:52:34,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765364430] [2022-11-16 12:52:34,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765364430] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:52:34,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1414164155] [2022-11-16 12:52:34,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:52:34,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:52:34,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:52:34,347 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:52:34,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-16 12:52:35,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:35,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 3678 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-16 12:52:35,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:52:36,064 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 369 trivial. 0 not checked. [2022-11-16 12:52:36,065 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:52:36,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1414164155] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:52:36,065 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:52:36,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2022-11-16 12:52:36,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959597524] [2022-11-16 12:52:36,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:52:36,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:52:36,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:52:36,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:52:36,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:52:36,067 INFO L87 Difference]: Start difference. First operand 15280 states and 20392 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) [2022-11-16 12:52:39,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:52:39,398 INFO L93 Difference]: Finished difference Result 31546 states and 42280 transitions. [2022-11-16 12:52:39,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:52:39,399 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 [2022-11-16 12:52:39,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:52:39,434 INFO L225 Difference]: With dead ends: 31546 [2022-11-16 12:52:39,434 INFO L226 Difference]: Without dead ends: 16330 [2022-11-16 12:52:39,461 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 [2022-11-16 12:52:39,462 INFO L413 NwaCegarLoop]: 2159 mSDtfsCounter, 648 mSDsluCounter, 8049 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 249 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 671 SdHoareTripleChecker+Valid, 10208 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 249 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-16 12:52:39,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [671 Valid, 10208 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [249 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-16 12:52:39,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16330 states. [2022-11-16 12:52:41,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16330 to 15526. [2022-11-16 12:52:41,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15526 states, 11316 states have (on average 1.289236479321315) internal successors, (14589), 11546 states have internal predecessors, (14589), 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) [2022-11-16 12:52:41,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15526 states to 15526 states and 20746 transitions. [2022-11-16 12:52:41,116 INFO L78 Accepts]: Start accepts. Automaton has 15526 states and 20746 transitions. Word has length 324 [2022-11-16 12:52:41,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:52:41,117 INFO L495 AbstractCegarLoop]: Abstraction has 15526 states and 20746 transitions. [2022-11-16 12:52:41,118 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) [2022-11-16 12:52:41,118 INFO L276 IsEmpty]: Start isEmpty. Operand 15526 states and 20746 transitions. [2022-11-16 12:52:41,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2022-11-16 12:52:41,133 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:52:41,134 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] [2022-11-16 12:52:41,151 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-16 12:52:41,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-16 12:52:41,351 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:52:41,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:52:41,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1590357433, now seen corresponding path program 1 times [2022-11-16 12:52:41,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:52:41,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967017615] [2022-11-16 12:52:41,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:52:41,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:52:41,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:43,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:52:43,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:43,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 12:52:43,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:43,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 12:52:43,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:43,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 12:52:43,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:43,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 12:52:43,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:43,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:52:43,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:43,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-16 12:52:43,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:43,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-16 12:52:43,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:43,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 12:52:43,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:43,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-16 12:52:43,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:43,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-16 12:52:43,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:43,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-16 12:52:43,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:43,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-16 12:52:43,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:43,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-16 12:52:43,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:43,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-16 12:52:43,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:43,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:52:43,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:43,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-16 12:52:43,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:43,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:52:43,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:43,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-16 12:52:43,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:43,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-16 12:52:43,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:43,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-11-16 12:52:43,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:43,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-11-16 12:52:43,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:43,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-11-16 12:52:43,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:43,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-11-16 12:52:43,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:43,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:52:43,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:43,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-11-16 12:52:43,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:43,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-11-16 12:52:43,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:43,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-11-16 12:52:43,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:43,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-11-16 12:52:43,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:43,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2022-11-16 12:52:43,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:43,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-11-16 12:52:43,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:43,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-11-16 12:52:43,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:43,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2022-11-16 12:52:43,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:43,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:52:43,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:43,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-11-16 12:52:43,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:43,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:52:43,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:43,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2022-11-16 12:52:43,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:43,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:52:43,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:43,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-11-16 12:52:43,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:43,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-11-16 12:52:43,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:43,582 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked. [2022-11-16 12:52:43,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:52:43,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967017615] [2022-11-16 12:52:43,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967017615] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:52:43,583 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:52:43,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 12:52:43,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886754636] [2022-11-16 12:52:43,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:52:43,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 12:52:43,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:52:43,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 12:52:43,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:52:43,587 INFO L87 Difference]: Start difference. First operand 15526 states and 20746 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) [2022-11-16 12:53:00,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:53:00,260 INFO L93 Difference]: Finished difference Result 40837 states and 56899 transitions. [2022-11-16 12:53:00,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 12:53:00,261 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 [2022-11-16 12:53:00,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:53:00,372 INFO L225 Difference]: With dead ends: 40837 [2022-11-16 12:53:00,372 INFO L226 Difference]: Without dead ends: 25375 [2022-11-16 12:53:00,419 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 [2022-11-16 12:53:00,420 INFO L413 NwaCegarLoop]: 1738 mSDtfsCounter, 3567 mSDsluCounter, 9594 mSDsCounter, 0 mSdLazyCounter, 11126 mSolverCounterSat, 2584 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3852 SdHoareTripleChecker+Valid, 11332 SdHoareTripleChecker+Invalid, 13710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2584 IncrementalHoareTripleChecker+Valid, 11126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:53:00,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3852 Valid, 11332 Invalid, 13710 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2584 Valid, 11126 Invalid, 0 Unknown, 0 Unchecked, 13.2s Time] [2022-11-16 12:53:00,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25375 states. [2022-11-16 12:53:02,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25375 to 15546. [2022-11-16 12:53:02,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15546 states, 11336 states have (on average 1.288726182074806) internal successors, (14609), 11562 states have internal predecessors, (14609), 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) [2022-11-16 12:53:02,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15546 states to 15546 states and 20766 transitions. [2022-11-16 12:53:02,420 INFO L78 Accepts]: Start accepts. Automaton has 15546 states and 20766 transitions. Word has length 338 [2022-11-16 12:53:02,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:53:02,420 INFO L495 AbstractCegarLoop]: Abstraction has 15546 states and 20766 transitions. [2022-11-16 12:53:02,420 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) [2022-11-16 12:53:02,421 INFO L276 IsEmpty]: Start isEmpty. Operand 15546 states and 20766 transitions. [2022-11-16 12:53:02,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2022-11-16 12:53:02,436 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:53:02,437 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] [2022-11-16 12:53:02,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-16 12:53:02,437 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:53:02,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:53:02,438 INFO L85 PathProgramCache]: Analyzing trace with hash 798407210, now seen corresponding path program 1 times [2022-11-16 12:53:02,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:53:02,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874579713] [2022-11-16 12:53:02,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:53:02,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:53:03,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:03,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:53:03,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:03,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 12:53:03,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:03,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 12:53:03,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:03,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 12:53:03,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:03,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 12:53:03,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:03,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:53:03,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:03,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-16 12:53:03,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:04,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-16 12:53:04,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:04,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 12:53:04,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:04,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-16 12:53:04,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:04,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-16 12:53:04,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:04,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-16 12:53:04,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:04,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-16 12:53:04,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:04,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-16 12:53:04,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:04,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-16 12:53:04,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:04,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:53:04,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:04,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-16 12:53:04,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:04,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:53:04,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:04,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-16 12:53:04,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:04,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-16 12:53:04,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:04,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-11-16 12:53:04,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:04,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-11-16 12:53:04,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:04,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:53:04,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:04,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-16 12:53:04,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:04,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:53:04,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:04,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-16 12:53:04,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:04,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-11-16 12:53:04,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:04,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-11-16 12:53:04,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:04,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:53:04,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:04,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-11-16 12:53:04,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:04,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-11-16 12:53:04,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:04,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-11-16 12:53:04,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:04,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-11-16 12:53:04,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:04,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2022-11-16 12:53:04,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:04,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-11-16 12:53:04,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:04,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-11-16 12:53:04,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:04,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2022-11-16 12:53:04,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:04,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:53:04,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:04,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-11-16 12:53:04,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:04,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:53:04,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:04,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2022-11-16 12:53:04,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:04,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:53:04,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:04,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2022-11-16 12:53:04,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:04,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2022-11-16 12:53:04,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:04,608 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 451 trivial. 0 not checked. [2022-11-16 12:53:04,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:53:04,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874579713] [2022-11-16 12:53:04,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874579713] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:53:04,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [84326276] [2022-11-16 12:53:04,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:53:04,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:53:04,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:53:04,612 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:53:04,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-16 12:53:06,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:06,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 3592 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-16 12:53:06,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:53:06,577 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 164 proven. 10 refuted. 0 times theorem prover too weak. 341 trivial. 0 not checked. [2022-11-16 12:53:06,577 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:53:07,123 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 451 trivial. 0 not checked. [2022-11-16 12:53:07,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [84326276] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:53:07,124 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 12:53:07,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 8] total 23 [2022-11-16 12:53:07,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7687339] [2022-11-16 12:53:07,125 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 12:53:07,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-16 12:53:07,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:53:07,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-16 12:53:07,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=394, Unknown=0, NotChecked=0, Total=506 [2022-11-16 12:53:07,127 INFO L87 Difference]: Start difference. First operand 15546 states and 20766 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) [2022-11-16 12:53:27,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:53:27,396 INFO L93 Difference]: Finished difference Result 33918 states and 45917 transitions. [2022-11-16 12:53:27,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-16 12:53:27,397 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 [2022-11-16 12:53:27,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:53:27,442 INFO L225 Difference]: With dead ends: 33918 [2022-11-16 12:53:27,442 INFO L226 Difference]: Without dead ends: 18363 [2022-11-16 12:53:27,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 842 GetRequests, 791 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 482 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=614, Invalid=2038, Unknown=0, NotChecked=0, Total=2652 [2022-11-16 12:53:27,470 INFO L413 NwaCegarLoop]: 1275 mSDtfsCounter, 2129 mSDsluCounter, 9342 mSDsCounter, 0 mSdLazyCounter, 10200 mSolverCounterSat, 1587 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2259 SdHoareTripleChecker+Valid, 10617 SdHoareTripleChecker+Invalid, 11787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1587 IncrementalHoareTripleChecker+Valid, 10200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.4s IncrementalHoareTripleChecker+Time [2022-11-16 12:53:27,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2259 Valid, 10617 Invalid, 11787 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1587 Valid, 10200 Invalid, 0 Unknown, 0 Unchecked, 15.4s Time] [2022-11-16 12:53:27,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18363 states. [2022-11-16 12:53:29,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18363 to 15576. [2022-11-16 12:53:29,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15576 states, 11366 states have (on average 1.2880520851662853) internal successors, (14640), 11592 states have internal predecessors, (14640), 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) [2022-11-16 12:53:29,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15576 states to 15576 states and 20797 transitions. [2022-11-16 12:53:29,414 INFO L78 Accepts]: Start accepts. Automaton has 15576 states and 20797 transitions. Word has length 358 [2022-11-16 12:53:29,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:53:29,414 INFO L495 AbstractCegarLoop]: Abstraction has 15576 states and 20797 transitions. [2022-11-16 12:53:29,414 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) [2022-11-16 12:53:29,415 INFO L276 IsEmpty]: Start isEmpty. Operand 15576 states and 20797 transitions. [2022-11-16 12:53:29,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2022-11-16 12:53:29,425 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:53:29,425 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] [2022-11-16 12:53:29,443 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-16 12:53:29,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-16 12:53:29,627 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:53:29,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:53:29,627 INFO L85 PathProgramCache]: Analyzing trace with hash 979214762, now seen corresponding path program 2 times [2022-11-16 12:53:29,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:53:29,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031788838] [2022-11-16 12:53:29,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:53:29,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:53:30,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:33,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:53:33,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:33,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 12:53:33,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:33,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 12:53:33,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:33,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 12:53:33,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:33,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 12:53:33,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:33,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:53:33,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:33,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-16 12:53:33,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:33,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-16 12:53:33,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:33,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 12:53:33,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:33,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-16 12:53:33,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:33,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-16 12:53:33,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:33,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-16 12:53:33,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:33,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-16 12:53:33,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:33,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-11-16 12:53:33,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:33,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-16 12:53:33,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:33,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:53:33,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:33,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-16 12:53:33,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:33,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:53:33,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:33,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-16 12:53:33,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:33,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-16 12:53:33,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:33,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-11-16 12:53:33,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:33,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-16 12:53:33,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:33,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:53:33,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:33,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-16 12:53:33,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:33,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:53:33,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:33,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-16 12:53:33,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:33,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-11-16 12:53:33,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:33,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-11-16 12:53:33,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:33,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:53:33,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:33,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-11-16 12:53:33,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:33,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-11-16 12:53:33,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:33,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-11-16 12:53:33,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:33,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-11-16 12:53:33,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:33,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2022-11-16 12:53:33,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:33,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-11-16 12:53:33,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:33,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2022-11-16 12:53:33,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:33,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2022-11-16 12:53:33,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:33,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:53:33,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:33,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-11-16 12:53:33,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:33,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:53:33,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:33,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2022-11-16 12:53:33,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:33,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:53:33,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:33,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2022-11-16 12:53:33,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:33,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-11-16 12:53:33,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:33,648 INFO L134 CoverageAnalysis]: Checked inductivity of 663 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2022-11-16 12:53:33,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:53:33,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031788838] [2022-11-16 12:53:33,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031788838] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:53:33,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:53:33,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 12:53:33,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669660577] [2022-11-16 12:53:33,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:53:33,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:53:33,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:53:33,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:53:33,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:53:33,651 INFO L87 Difference]: Start difference. First operand 15576 states and 20797 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) [2022-11-16 12:53:50,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:53:50,118 INFO L93 Difference]: Finished difference Result 41367 states and 57688 transitions. [2022-11-16 12:53:50,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 12:53:50,119 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 [2022-11-16 12:53:50,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:53:50,186 INFO L225 Difference]: With dead ends: 41367 [2022-11-16 12:53:50,186 INFO L226 Difference]: Without dead ends: 25861 [2022-11-16 12:53:50,211 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 [2022-11-16 12:53:50,212 INFO L413 NwaCegarLoop]: 1754 mSDtfsCounter, 5225 mSDsluCounter, 10121 mSDsCounter, 0 mSdLazyCounter, 11727 mSolverCounterSat, 3305 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5510 SdHoareTripleChecker+Valid, 11875 SdHoareTripleChecker+Invalid, 15032 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3305 IncrementalHoareTripleChecker+Valid, 11727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2022-11-16 12:53:50,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5510 Valid, 11875 Invalid, 15032 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3305 Valid, 11727 Invalid, 0 Unknown, 0 Unchecked, 12.7s Time] [2022-11-16 12:53:50,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25861 states. [2022-11-16 12:53:52,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25861 to 15576. [2022-11-16 12:53:52,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15576 states, 11366 states have (on average 1.2880520851662853) internal successors, (14640), 11592 states have internal predecessors, (14640), 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) [2022-11-16 12:53:52,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15576 states to 15576 states and 20797 transitions. [2022-11-16 12:53:52,258 INFO L78 Accepts]: Start accepts. Automaton has 15576 states and 20797 transitions. Word has length 366 [2022-11-16 12:53:52,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:53:52,259 INFO L495 AbstractCegarLoop]: Abstraction has 15576 states and 20797 transitions. [2022-11-16 12:53:52,259 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) [2022-11-16 12:53:52,259 INFO L276 IsEmpty]: Start isEmpty. Operand 15576 states and 20797 transitions. [2022-11-16 12:53:52,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2022-11-16 12:53:52,274 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:53:52,275 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] [2022-11-16 12:53:52,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-16 12:53:52,275 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:53:52,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:53:52,276 INFO L85 PathProgramCache]: Analyzing trace with hash -276410279, now seen corresponding path program 1 times [2022-11-16 12:53:52,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:53:52,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033027719] [2022-11-16 12:53:52,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:53:52,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:53:52,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:54,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:53:54,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:54,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 12:53:54,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:54,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 12:53:54,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:54,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 12:53:54,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:54,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 12:53:54,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:54,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:53:54,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:54,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-16 12:53:54,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:55,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-16 12:53:55,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:55,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 12:53:55,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:55,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-16 12:53:55,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:55,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-16 12:53:55,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:55,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-16 12:53:55,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:55,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-16 12:53:55,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:55,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-11-16 12:53:55,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:55,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-16 12:53:55,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:55,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:53:55,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:55,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-16 12:53:55,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:55,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:53:55,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:55,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-16 12:53:55,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:55,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-16 12:53:55,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:55,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-11-16 12:53:55,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:55,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-16 12:53:55,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:55,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-11-16 12:53:55,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:55,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-11-16 12:53:55,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:55,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-11-16 12:53:55,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:55,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:53:55,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:55,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2022-11-16 12:53:55,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:55,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-11-16 12:53:55,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:55,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-11-16 12:53:55,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:55,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2022-11-16 12:53:55,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:55,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-11-16 12:53:55,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:55,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-11-16 12:53:55,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:55,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-11-16 12:53:55,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:55,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2022-11-16 12:53:55,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:55,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:53:55,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:55,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-11-16 12:53:55,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:55,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:53:55,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:55,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2022-11-16 12:53:55,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:55,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:53:55,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:55,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2022-11-16 12:53:55,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:55,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2022-11-16 12:53:55,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:55,522 INFO L134 CoverageAnalysis]: Checked inductivity of 617 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 599 trivial. 0 not checked. [2022-11-16 12:53:55,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:53:55,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033027719] [2022-11-16 12:53:55,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033027719] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:53:55,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2094660512] [2022-11-16 12:53:55,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:53:55,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:53:55,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:53:55,524 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:53:55,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-16 12:53:57,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:57,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 3572 conjuncts, 46 conjunts are in the unsatisfiable core [2022-11-16 12:53:57,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:53:58,193 INFO L134 CoverageAnalysis]: Checked inductivity of 617 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 541 trivial. 0 not checked. [2022-11-16 12:53:58,193 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:53:58,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2094660512] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:53:58,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:53:58,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [17] total 21 [2022-11-16 12:53:58,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882947003] [2022-11-16 12:53:58,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:53:58,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:53:58,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:53:58,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:53:58,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=376, Unknown=0, NotChecked=0, Total=420 [2022-11-16 12:53:58,197 INFO L87 Difference]: Start difference. First operand 15576 states and 20797 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) [2022-11-16 12:54:01,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:54:01,900 INFO L93 Difference]: Finished difference Result 35030 states and 47671 transitions. [2022-11-16 12:54:01,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 12:54:01,900 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 [2022-11-16 12:54:01,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:54:01,948 INFO L225 Difference]: With dead ends: 35030 [2022-11-16 12:54:01,948 INFO L226 Difference]: Without dead ends: 19524 [2022-11-16 12:54:01,971 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 [2022-11-16 12:54:01,972 INFO L413 NwaCegarLoop]: 2409 mSDtfsCounter, 1059 mSDsluCounter, 25892 mSDsCounter, 0 mSdLazyCounter, 898 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1203 SdHoareTripleChecker+Valid, 28301 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 [2022-11-16 12:54:01,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1203 Valid, 28301 Invalid, 965 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [67 Valid, 898 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-16 12:54:01,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19524 states. [2022-11-16 12:54:04,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19524 to 15576. [2022-11-16 12:54:04,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15576 states, 11366 states have (on average 1.2880520851662853) internal successors, (14640), 11592 states have internal predecessors, (14640), 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) [2022-11-16 12:54:04,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15576 states to 15576 states and 20797 transitions. [2022-11-16 12:54:04,101 INFO L78 Accepts]: Start accepts. Automaton has 15576 states and 20797 transitions. Word has length 352 [2022-11-16 12:54:04,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:54:04,102 INFO L495 AbstractCegarLoop]: Abstraction has 15576 states and 20797 transitions. [2022-11-16 12:54:04,102 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) [2022-11-16 12:54:04,102 INFO L276 IsEmpty]: Start isEmpty. Operand 15576 states and 20797 transitions. [2022-11-16 12:54:04,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2022-11-16 12:54:04,113 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:54:04,114 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] [2022-11-16 12:54:04,130 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-16 12:54:04,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:54:04,315 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:54:04,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:54:04,316 INFO L85 PathProgramCache]: Analyzing trace with hash 991969860, now seen corresponding path program 1 times [2022-11-16 12:54:04,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:54:04,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236827163] [2022-11-16 12:54:04,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:54:04,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:54:06,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:54:06,366 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:54:07,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:54:08,029 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:54:08,030 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 12:54:08,031 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-16 12:54:08,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-16 12:54:08,036 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] [2022-11-16 12:54:08,043 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 12:54:08,116 WARN L421 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2022-11-16 12:54:08,119 WARN L421 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2022-11-16 12:54:08,120 WARN L421 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2022-11-16 12:54:08,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:54:08 BoogieIcfgContainer [2022-11-16 12:54:08,514 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 12:54:08,515 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 12:54:08,515 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 12:54:08,516 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 12:54:08,516 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:49:25" (3/4) ... [2022-11-16 12:54:08,519 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 12:54:08,520 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 12:54:08,520 INFO L158 Benchmark]: Toolchain (without parser) took 293865.84ms. Allocated memory was 115.3MB in the beginning and 3.9GB in the end (delta: 3.8GB). Free memory was 87.3MB in the beginning and 3.1GB in the end (delta: -3.0GB). Peak memory consumption was 738.7MB. Max. memory is 16.1GB. [2022-11-16 12:54:08,520 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 115.3MB. Free memory is still 92.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:54:08,521 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3490.50ms. Allocated memory was 115.3MB in the beginning and 237.0MB in the end (delta: 121.6MB). Free memory was 86.8MB in the beginning and 112.5MB in the end (delta: -25.7MB). Peak memory consumption was 98.0MB. Max. memory is 16.1GB. [2022-11-16 12:54:08,525 INFO L158 Benchmark]: Boogie Procedure Inliner took 296.54ms. Allocated memory is still 237.0MB. Free memory was 112.5MB in the beginning and 149.7MB in the end (delta: -37.2MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB. [2022-11-16 12:54:08,526 INFO L158 Benchmark]: Boogie Preprocessor took 254.44ms. Allocated memory is still 237.0MB. Free memory was 149.7MB in the beginning and 121.4MB in the end (delta: 28.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-16 12:54:08,526 INFO L158 Benchmark]: RCFGBuilder took 6714.21ms. Allocated memory was 237.0MB in the beginning and 549.5MB in the end (delta: 312.5MB). Free memory was 121.4MB in the beginning and 177.9MB in the end (delta: -56.5MB). Peak memory consumption was 272.1MB. Max. memory is 16.1GB. [2022-11-16 12:54:08,529 INFO L158 Benchmark]: TraceAbstraction took 283095.83ms. Allocated memory was 549.5MB in the beginning and 3.9GB in the end (delta: 3.3GB). Free memory was 176.9MB in the beginning and 3.1GB in the end (delta: -2.9GB). Peak memory consumption was 965.1MB. Max. memory is 16.1GB. [2022-11-16 12:54:08,529 INFO L158 Benchmark]: Witness Printer took 4.56ms. Allocated memory is still 3.9GB. Free memory was 3.1GB in the beginning and 3.1GB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:54:08,533 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 115.3MB. Free memory is still 92.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3490.50ms. Allocated memory was 115.3MB in the beginning and 237.0MB in the end (delta: 121.6MB). Free memory was 86.8MB in the beginning and 112.5MB in the end (delta: -25.7MB). Peak memory consumption was 98.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 296.54ms. Allocated memory is still 237.0MB. Free memory was 112.5MB in the beginning and 149.7MB in the end (delta: -37.2MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 254.44ms. Allocated memory is still 237.0MB. Free memory was 149.7MB in the beginning and 121.4MB in the end (delta: 28.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * RCFGBuilder took 6714.21ms. Allocated memory was 237.0MB in the beginning and 549.5MB in the end (delta: 312.5MB). Free memory was 121.4MB in the beginning and 177.9MB in the end (delta: -56.5MB). Peak memory consumption was 272.1MB. Max. memory is 16.1GB. * TraceAbstraction took 283095.83ms. Allocated memory was 549.5MB in the beginning and 3.9GB in the end (delta: 3.3GB). Free memory was 176.9MB in the beginning and 3.1GB in the end (delta: -2.9GB). Peak memory consumption was 965.1MB. Max. memory is 16.1GB. * Witness Printer took 4.56ms. Allocated memory is still 3.9GB. Free memory was 3.1GB in the beginning and 3.1GB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. 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: 282.5s, OverallIterations: 21, TraceHistogramMax: 20, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.6s, AutomataDifference: 205.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 53397 SdHoareTripleChecker+Valid, 168.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 50360 mSDsluCounter, 200840 SdHoareTripleChecker+Invalid, 148.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 165199 mSDsCounter, 31499 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 120121 IncrementalHoareTripleChecker+Invalid, 151620 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31499 mSolverCounterUnsat, 35641 mSDtfsCounter, 120121 mSolverCounterSat, 1.6s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5664 GetRequests, 5303 SyntacticMatches, 5 SemanticMatches, 356 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1228 ImplicationChecksByTransitivity, 7.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15576occurred in iteration=18, InterpolantAutomatonStates: 253, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 22.0s AutomataMinimizationTime, 20 MinimizatonAttempts, 58883 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.4s SsaConstructionTime, 11.0s SatisfiabilityAnalysisTime, 31.6s InterpolantComputationTime, 8758 NumberOfCodeBlocks, 8758 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 9589 ConstructedInterpolants, 0 QuantifiedInterpolants, 14748 SizeOfPredicates, 27 NumberOfNonLiveVariables, 29285 ConjunctsInSsa, 124 ConjunctsInUnsatCore, 33 InterpolantComputations, 16 PerfectInterpolantSequences, 12302/12530 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 [2022-11-16 12:54:08,729 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8 --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-e04fb08 [2022-11-16 12:54:11,051 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:54:11,054 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:54:11,080 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:54:11,087 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:54:11,091 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:54:11,094 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:54:11,098 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:54:11,102 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:54:11,104 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:54:11,105 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:54:11,109 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:54:11,109 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:54:11,115 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:54:11,116 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:54:11,118 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:54:11,120 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:54:11,122 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:54:11,123 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:54:11,125 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:54:11,127 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:54:11,129 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:54:11,130 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:54:11,131 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:54:11,135 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:54:11,135 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:54:11,135 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:54:11,136 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:54:11,137 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:54:11,138 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:54:11,138 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:54:11,139 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:54:11,140 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:54:11,141 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:54:11,142 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:54:11,142 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:54:11,143 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:54:11,144 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:54:11,144 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:54:11,145 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:54:11,146 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:54:11,147 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-16 12:54:11,174 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:54:11,174 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:54:11,175 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:54:11,175 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:54:11,176 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:54:11,176 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:54:11,177 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:54:11,177 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:54:11,177 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:54:11,178 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:54:11,178 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:54:11,178 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:54:11,178 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:54:11,179 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:54:11,179 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-16 12:54:11,179 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-16 12:54:11,180 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-16 12:54:11,180 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:54:11,180 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:54:11,180 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:54:11,181 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:54:11,181 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:54:11,181 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:54:11,181 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:54:11,181 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:54:11,182 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:54:11,182 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:54:11,182 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-16 12:54:11,182 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-16 12:54:11,183 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:54:11,183 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:54:11,183 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:54:11,183 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-16 12:54:11,183 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_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a900a56caf1252bf2b77371f0836914c913e44b231203ecd4eebd687a96fd0c2 [2022-11-16 12:54:11,501 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:54:11,524 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:54:11,527 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:54:11,528 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:54:11,531 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:54:11,532 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/../../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 [2022-11-16 12:54:11,608 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/data/88304fe2a/c4253c6557364c2b87fb25f99ab7809d/FLAGeabe81533 [2022-11-16 12:54:12,556 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:54:12,557 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/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 [2022-11-16 12:54:12,614 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/data/88304fe2a/c4253c6557364c2b87fb25f99ab7809d/FLAGeabe81533 [2022-11-16 12:54:13,034 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/data/88304fe2a/c4253c6557364c2b87fb25f99ab7809d [2022-11-16 12:54:13,037 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:54:13,039 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:54:13,040 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:54:13,040 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:54:13,048 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:54:13,049 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:54:13" (1/1) ... [2022-11-16 12:54:13,051 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15a3ffe4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:54:13, skipping insertion in model container [2022-11-16 12:54:13,051 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:54:13" (1/1) ... [2022-11-16 12:54:13,060 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:54:13,245 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:54:13,987 WARN L1255 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5986] [2022-11-16 12:54:13,987 WARN L1255 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5987-5988] [2022-11-16 12:54:14,666 WARN L229 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_c2669ab0-395a-4d88-9049-352ec649b3b2/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] [2022-11-16 12:54:16,119 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:54:16,157 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-16 12:54:16,227 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:54:16,352 WARN L1255 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5986] [2022-11-16 12:54:16,353 WARN L1255 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5987-5988] [2022-11-16 12:54:16,376 WARN L229 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_c2669ab0-395a-4d88-9049-352ec649b3b2/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] [2022-11-16 12:54:16,658 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:54:16,687 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:54:16,834 WARN L1255 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5986] [2022-11-16 12:54:16,834 WARN L1255 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5987-5988] [2022-11-16 12:54:16,847 WARN L229 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_c2669ab0-395a-4d88-9049-352ec649b3b2/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] [2022-11-16 12:54:17,273 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:54:17,476 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:54:17,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:54:17 WrapperNode [2022-11-16 12:54:17,476 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:54:17,478 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:54:17,478 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:54:17,478 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:54:17,486 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:54:17" (1/1) ... [2022-11-16 12:54:17,594 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:54:17" (1/1) ... [2022-11-16 12:54:17,821 INFO L138 Inliner]: procedures = 363, calls = 2000, calls flagged for inlining = 171, calls inlined = 139, statements flattened = 4483 [2022-11-16 12:54:17,824 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:54:17,825 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:54:17,826 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:54:17,826 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:54:17,837 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:54:17" (1/1) ... [2022-11-16 12:54:17,837 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:54:17" (1/1) ... [2022-11-16 12:54:17,894 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:54:17" (1/1) ... [2022-11-16 12:54:17,894 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:54:17" (1/1) ... [2022-11-16 12:54:18,044 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:54:17" (1/1) ... [2022-11-16 12:54:18,072 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:54:17" (1/1) ... [2022-11-16 12:54:18,106 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:54:17" (1/1) ... [2022-11-16 12:54:18,130 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:54:17" (1/1) ... [2022-11-16 12:54:18,164 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:54:18,166 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:54:18,167 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:54:18,167 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:54:18,168 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:54:17" (1/1) ... [2022-11-16 12:54:18,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:54:18,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:54:18,198 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:54:18,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:54:18,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-16 12:54:18,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-16 12:54:18,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-16 12:54:18,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-16 12:54:18,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-16 12:54:18,242 INFO L130 BoogieDeclarations]: Found specification of procedure get_page [2022-11-16 12:54:18,242 INFO L138 BoogieDeclarations]: Found implementation of procedure get_page [2022-11-16 12:54:18,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-16 12:54:18,243 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_release_tx_bufs [2022-11-16 12:54:18,243 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_release_tx_bufs [2022-11-16 12:54:18,243 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-16 12:54:18,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-16 12:54:18,243 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2022-11-16 12:54:18,243 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2022-11-16 12:54:18,244 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2022-11-16 12:54:18,244 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2022-11-16 12:54:18,244 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_change_mtu [2022-11-16 12:54:18,244 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_change_mtu [2022-11-16 12:54:18,244 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-11-16 12:54:18,245 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-11-16 12:54:18,245 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_write [2022-11-16 12:54:18,245 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_write [2022-11-16 12:54:18,245 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-16 12:54:18,245 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-16 12:54:18,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-16 12:54:18,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-16 12:54:18,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-16 12:54:18,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-16 12:54:18,246 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2022-11-16 12:54:18,246 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2022-11-16 12:54:18,247 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_update_begin [2022-11-16 12:54:18,247 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_update_begin [2022-11-16 12:54:18,247 INFO L130 BoogieDeclarations]: Found specification of procedure bind_evtchn_to_irqhandler [2022-11-16 12:54:18,247 INFO L138 BoogieDeclarations]: Found implementation of procedure bind_evtchn_to_irqhandler [2022-11-16 12:54:18,247 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_transaction_end [2022-11-16 12:54:18,248 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_transaction_end [2022-11-16 12:54:18,248 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_remove [2022-11-16 12:54:18,248 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_remove [2022-11-16 12:54:18,248 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-16 12:54:18,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-16 12:54:18,248 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-16 12:54:18,249 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-16 12:54:18,249 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-16 12:54:18,249 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-16 12:54:18,249 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_grant_ring [2022-11-16 12:54:18,249 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_grant_ring [2022-11-16 12:54:18,250 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-16 12:54:18,250 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-16 12:54:18,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-16 12:54:18,250 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-16 12:54:18,250 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_claim_grant_reference [2022-11-16 12:54:18,251 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_claim_grant_reference [2022-11-16 12:54:18,251 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-16 12:54:18,251 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-16 12:54:18,251 INFO L130 BoogieDeclarations]: Found specification of procedure netif_set_real_num_tx_queues [2022-11-16 12:54:18,251 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_set_real_num_tx_queues [2022-11-16 12:54:18,251 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_end_foreign_access [2022-11-16 12:54:18,252 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_end_foreign_access [2022-11-16 12:54:18,252 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_disconnect_backend [2022-11-16 12:54:18,252 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_disconnect_backend [2022-11-16 12:54:18,252 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_get_stats64 [2022-11-16 12:54:18,252 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_get_stats64 [2022-11-16 12:54:18,253 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-16 12:54:18,253 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-16 12:54:18,253 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_alloc_evtchn [2022-11-16 12:54:18,253 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_alloc_evtchn [2022-11-16 12:54:18,253 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-11-16 12:54:18,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-11-16 12:54:18,254 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_alloc_grant_references [2022-11-16 12:54:18,254 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_alloc_grant_references [2022-11-16 12:54:18,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:54:18,254 INFO L130 BoogieDeclarations]: Found specification of procedure netfront_tx_slot_available [2022-11-16 12:54:18,254 INFO L138 BoogieDeclarations]: Found implementation of procedure netfront_tx_slot_available [2022-11-16 12:54:18,254 INFO L130 BoogieDeclarations]: Found specification of procedure notify_remote_via_irq [2022-11-16 12:54:18,255 INFO L138 BoogieDeclarations]: Found implementation of procedure notify_remote_via_irq [2022-11-16 12:54:18,255 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_release_grant_reference [2022-11-16 12:54:18,255 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_release_grant_reference [2022-11-16 12:54:18,255 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-11-16 12:54:18,255 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-11-16 12:54:18,256 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_can_sg [2022-11-16 12:54:18,256 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_can_sg [2022-11-16 12:54:18,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 12:54:18,256 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-16 12:54:18,256 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-16 12:54:18,256 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-16 12:54:18,257 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-16 12:54:18,257 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-11-16 12:54:18,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-11-16 12:54:18,257 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2022-11-16 12:54:18,257 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_tail [2022-11-16 12:54:18,257 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_tail [2022-11-16 12:54:18,258 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_rxidx [2022-11-16 12:54:18,258 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_rxidx [2022-11-16 12:54:18,258 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-16 12:54:18,258 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-16 12:54:18,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-16 12:54:18,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-16 12:54:18,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-16 12:54:18,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:54:18,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-16 12:54:18,259 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2022-11-16 12:54:18,259 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2022-11-16 12:54:18,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-16 12:54:18,260 INFO L130 BoogieDeclarations]: Found specification of procedure write_queue_xenstore_keys [2022-11-16 12:54:18,260 INFO L138 BoogieDeclarations]: Found implementation of procedure write_queue_xenstore_keys [2022-11-16 12:54:18,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-11-16 12:54:18,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-16 12:54:18,260 INFO L130 BoogieDeclarations]: Found specification of procedure pfn_to_mfn [2022-11-16 12:54:18,261 INFO L138 BoogieDeclarations]: Found implementation of procedure pfn_to_mfn [2022-11-16 12:54:18,261 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-11-16 12:54:18,261 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-11-16 12:54:18,261 INFO L130 BoogieDeclarations]: Found specification of procedure add_id_to_freelist [2022-11-16 12:54:18,261 INFO L138 BoogieDeclarations]: Found implementation of procedure add_id_to_freelist [2022-11-16 12:54:18,262 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_alloc_rx_buffers [2022-11-16 12:54:18,262 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_alloc_rx_buffers [2022-11-16 12:54:18,262 INFO L130 BoogieDeclarations]: Found specification of procedure skb_entry_set_link [2022-11-16 12:54:18,262 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_entry_set_link [2022-11-16 12:54:18,262 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-16 12:54:18,263 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-16 12:54:18,263 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-16 12:54:18,263 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-16 12:54:18,263 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-11-16 12:54:18,263 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-11-16 12:54:18,263 INFO L130 BoogieDeclarations]: Found specification of procedure free_pages [2022-11-16 12:54:18,264 INFO L138 BoogieDeclarations]: Found implementation of procedure free_pages [2022-11-16 12:54:18,264 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_end_foreign_access_ref [2022-11-16 12:54:18,264 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_end_foreign_access_ref [2022-11-16 12:54:18,264 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-16 12:54:18,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-16 12:54:18,264 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-11-16 12:54:18,265 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-11-16 12:54:18,265 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_free_grant_references [2022-11-16 12:54:18,265 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_free_grant_references [2022-11-16 12:54:18,265 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2022-11-16 12:54:18,265 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2022-11-16 12:54:18,265 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-11-16 12:54:18,266 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-11-16 12:54:18,266 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-16 12:54:18,266 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-16 12:54:18,266 INFO L130 BoogieDeclarations]: Found specification of procedure unbind_from_irqhandler [2022-11-16 12:54:18,266 INFO L138 BoogieDeclarations]: Found implementation of procedure unbind_from_irqhandler [2022-11-16 12:54:18,266 INFO L130 BoogieDeclarations]: Found specification of procedure get_zeroed_page [2022-11-16 12:54:18,267 INFO L138 BoogieDeclarations]: Found implementation of procedure get_zeroed_page [2022-11-16 12:54:18,267 INFO L130 BoogieDeclarations]: Found specification of procedure netback_changed [2022-11-16 12:54:18,267 INFO L138 BoogieDeclarations]: Found implementation of procedure netback_changed [2022-11-16 12:54:18,267 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_poll_controller [2022-11-16 12:54:18,267 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_poll_controller [2022-11-16 12:54:18,267 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_insert [2022-11-16 12:54:18,268 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_insert [2022-11-16 12:54:18,268 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-16 12:54:18,268 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-16 12:54:18,268 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-16 12:54:18,268 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-16 12:54:18,268 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2022-11-16 12:54:18,269 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2022-11-16 12:54:18,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-16 12:54:18,269 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-16 12:54:18,269 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_select_queue [2022-11-16 12:54:18,269 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_select_queue [2022-11-16 12:54:18,270 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_end_access [2022-11-16 12:54:18,270 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_end_access [2022-11-16 12:54:18,270 INFO L130 BoogieDeclarations]: Found specification of procedure skb_get [2022-11-16 12:54:18,270 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_get [2022-11-16 12:54:18,270 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-16 12:54:18,270 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-16 12:54:18,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-16 12:54:18,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-16 12:54:18,271 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_get_rx_ref [2022-11-16 12:54:18,271 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_get_rx_ref [2022-11-16 12:54:18,271 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-16 12:54:18,271 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-16 12:54:18,272 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2022-11-16 12:54:18,272 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2022-11-16 12:54:18,272 INFO L130 BoogieDeclarations]: Found specification of procedure skb_add_rx_frag [2022-11-16 12:54:18,272 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_add_rx_frag [2022-11-16 12:54:18,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-16 12:54:18,272 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2022-11-16 12:54:18,273 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2022-11-16 12:54:18,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-16 12:54:18,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-16 12:54:18,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-16 12:54:18,273 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-11-16 12:54:18,273 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-11-16 12:54:18,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-16 12:54:18,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-16 12:54:18,274 INFO L130 BoogieDeclarations]: Found specification of procedure get_id_from_freelist [2022-11-16 12:54:18,274 INFO L138 BoogieDeclarations]: Found implementation of procedure get_id_from_freelist [2022-11-16 12:54:18,274 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2022-11-16 12:54:18,274 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2022-11-16 12:54:18,275 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_fix_features [2022-11-16 12:54:18,275 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_fix_features [2022-11-16 12:54:18,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 12:54:18,275 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-16 12:54:18,275 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-16 12:54:18,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:54:18,276 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-16 12:54:18,276 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-16 12:54:18,276 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_next [2022-11-16 12:54:18,276 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_next [2022-11-16 12:54:18,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 12:54:18,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-16 12:54:18,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-16 12:54:18,277 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2022-11-16 12:54:18,277 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2022-11-16 12:54:18,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-16 12:54:18,278 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-11-16 12:54:18,278 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-11-16 12:54:18,278 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-11-16 12:54:18,278 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-11-16 12:54:18,278 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-11-16 12:54:18,278 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-11-16 12:54:18,279 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2022-11-16 12:54:18,279 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2022-11-16 12:54:18,279 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2022-11-16 12:54:18,279 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2022-11-16 12:54:18,279 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-16 12:54:18,279 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-16 12:54:18,280 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2022-11-16 12:54:18,280 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2022-11-16 12:54:18,280 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_grant_foreign_access_ref [2022-11-16 12:54:18,280 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_grant_foreign_access_ref [2022-11-16 12:54:18,280 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-16 12:54:18,280 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-16 12:54:18,281 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_set_features [2022-11-16 12:54:18,281 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_set_features [2022-11-16 12:54:18,281 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-11-16 12:54:18,281 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-11-16 12:54:18,281 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-16 12:54:18,281 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-16 12:54:18,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-16 12:54:18,282 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-11-16 12:54:18,282 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-11-16 12:54:18,282 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2022-11-16 12:54:18,282 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2022-11-16 12:54:18,282 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_free_evtchn [2022-11-16 12:54:18,283 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_free_evtchn [2022-11-16 12:54:18,283 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_get_rx_skb [2022-11-16 12:54:18,283 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_get_rx_skb [2022-11-16 12:54:18,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:54:18,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:54:18,283 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_tx_buf_gc [2022-11-16 12:54:18,284 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_tx_buf_gc [2022-11-16 12:54:18,284 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-11-16 12:54:18,284 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-11-16 12:54:18,284 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-16 12:54:18,284 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-16 12:54:19,119 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:54:19,123 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:54:38,634 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-16 12:55:09,598 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:55:09,615 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:55:09,616 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 12:55:09,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:55:09 BoogieIcfgContainer [2022-11-16 12:55:09,620 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:55:09,622 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:55:09,622 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:55:09,625 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:55:09,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:54:13" (1/3) ... [2022-11-16 12:55:09,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51551c38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:55:09, skipping insertion in model container [2022-11-16 12:55:09,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:54:17" (2/3) ... [2022-11-16 12:55:09,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51551c38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:55:09, skipping insertion in model container [2022-11-16 12:55:09,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:55:09" (3/3) ... [2022-11-16 12:55:09,629 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 [2022-11-16 12:55:09,648 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:55:09,649 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 12:55:09,736 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:55:09,746 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;@4af835bb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:55:09,746 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 12:55:09,755 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) [2022-11-16 12:55:09,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-11-16 12:55:09,799 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:55:09,800 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] [2022-11-16 12:55:09,801 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:55:09,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:55:09,806 INFO L85 PathProgramCache]: Analyzing trace with hash 668980256, now seen corresponding path program 1 times [2022-11-16 12:55:09,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:55:09,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1058256101] [2022-11-16 12:55:09,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:55:09,839 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 [2022-11-16 12:55:09,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:55:09,847 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 12:55:09,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:55:11,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:55:11,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 1614 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 12:55:11,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:55:11,576 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-11-16 12:55:11,580 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:55:11,581 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:55:11,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1058256101] [2022-11-16 12:55:11,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1058256101] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:55:11,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:55:11,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:55:11,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491042470] [2022-11-16 12:55:11,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:55:11,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:55:11,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:55:11,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:55:11,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:55:11,633 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) [2022-11-16 12:55:12,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:55:12,081 INFO L93 Difference]: Finished difference Result 3144 states and 4335 transitions. [2022-11-16 12:55:12,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 12:55:12,084 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 [2022-11-16 12:55:12,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:55:12,108 INFO L225 Difference]: With dead ends: 3144 [2022-11-16 12:55:12,111 INFO L226 Difference]: Without dead ends: 1546 [2022-11-16 12:55:12,126 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 [2022-11-16 12:55:12,133 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 [2022-11-16 12:55:12,136 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] [2022-11-16 12:55:12,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1546 states. [2022-11-16 12:55:12,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1546 to 1546. [2022-11-16 12:55:12,270 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) [2022-11-16 12:55:12,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1546 states to 1546 states and 2101 transitions. [2022-11-16 12:55:12,285 INFO L78 Accepts]: Start accepts. Automaton has 1546 states and 2101 transitions. Word has length 153 [2022-11-16 12:55:12,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:55:12,287 INFO L495 AbstractCegarLoop]: Abstraction has 1546 states and 2101 transitions. [2022-11-16 12:55:12,287 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) [2022-11-16 12:55:12,287 INFO L276 IsEmpty]: Start isEmpty. Operand 1546 states and 2101 transitions. [2022-11-16 12:55:12,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-16 12:55:12,297 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:55:12,298 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] [2022-11-16 12:55:12,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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)] Forceful destruction successful, exit code 0 [2022-11-16 12:55:12,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:55:12,519 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:55:12,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:55:12,520 INFO L85 PathProgramCache]: Analyzing trace with hash 570595544, now seen corresponding path program 1 times [2022-11-16 12:55:12,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:55:12,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [474868496] [2022-11-16 12:55:12,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:55:12,523 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 [2022-11-16 12:55:12,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:55:12,531 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 12:55:12,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:55:14,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:55:14,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 1647 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 12:55:14,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:55:14,288 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2022-11-16 12:55:14,288 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:55:14,637 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2022-11-16 12:55:14,638 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:55:14,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [474868496] [2022-11-16 12:55:14,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [474868496] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:55:14,638 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:55:14,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-16 12:55:14,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911667995] [2022-11-16 12:55:14,639 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:55:14,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:55:14,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:55:14,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:55:14,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:55:14,643 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) [2022-11-16 12:55:15,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:55:15,222 INFO L93 Difference]: Finished difference Result 3081 states and 4194 transitions. [2022-11-16 12:55:15,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 12:55:15,224 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 [2022-11-16 12:55:15,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:55:15,239 INFO L225 Difference]: With dead ends: 3081 [2022-11-16 12:55:15,239 INFO L226 Difference]: Without dead ends: 1555 [2022-11-16 12:55:15,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 304 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:55:15,249 INFO L413 NwaCegarLoop]: 2096 mSDtfsCounter, 14 mSDsluCounter, 6278 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-11-16 12:55:15,249 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] [2022-11-16 12:55:15,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1555 states. [2022-11-16 12:55:15,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1555 to 1555. [2022-11-16 12:55:15,322 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) [2022-11-16 12:55:15,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 2112 transitions. [2022-11-16 12:55:15,333 INFO L78 Accepts]: Start accepts. Automaton has 1555 states and 2112 transitions. Word has length 156 [2022-11-16 12:55:15,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:55:15,334 INFO L495 AbstractCegarLoop]: Abstraction has 1555 states and 2112 transitions. [2022-11-16 12:55:15,335 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) [2022-11-16 12:55:15,335 INFO L276 IsEmpty]: Start isEmpty. Operand 1555 states and 2112 transitions. [2022-11-16 12:55:15,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-11-16 12:55:15,347 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:55:15,348 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] [2022-11-16 12:55:15,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:55:15,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:55:15,561 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:55:15,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:55:15,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1902875074, now seen corresponding path program 1 times [2022-11-16 12:55:15,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:55:15,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1022767781] [2022-11-16 12:55:15,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:55:15,565 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 [2022-11-16 12:55:15,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:55:15,566 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 12:55:15,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:55:16,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:55:17,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 1723 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-16 12:55:17,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:55:17,276 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 46 proven. 10 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2022-11-16 12:55:17,276 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:55:18,031 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 12:55:18,031 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:55:18,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1022767781] [2022-11-16 12:55:18,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1022767781] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:55:18,032 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:55:18,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2022-11-16 12:55:18,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597569639] [2022-11-16 12:55:18,032 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:55:18,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 12:55:18,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:55:18,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 12:55:18,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-11-16 12:55:18,034 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) [2022-11-16 12:55:19,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:55:19,789 INFO L93 Difference]: Finished difference Result 3111 states and 4236 transitions. [2022-11-16 12:55:19,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-16 12:55:19,791 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 [2022-11-16 12:55:19,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:55:19,802 INFO L225 Difference]: With dead ends: 3111 [2022-11-16 12:55:19,802 INFO L226 Difference]: Without dead ends: 1574 [2022-11-16 12:55:19,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 310 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=204, Invalid=446, Unknown=0, NotChecked=0, Total=650 [2022-11-16 12:55:19,815 INFO L413 NwaCegarLoop]: 2098 mSDtfsCounter, 32 mSDsluCounter, 14656 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s 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, 0.8s IncrementalHoareTripleChecker+Time [2022-11-16 12:55:19,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 16754 Invalid, 201 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [36 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-16 12:55:19,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1574 states. [2022-11-16 12:55:19,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1574 to 1570. [2022-11-16 12:55:19,883 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) [2022-11-16 12:55:19,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 2131 transitions. [2022-11-16 12:55:19,896 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 2131 transitions. Word has length 162 [2022-11-16 12:55:19,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:55:19,898 INFO L495 AbstractCegarLoop]: Abstraction has 1570 states and 2131 transitions. [2022-11-16 12:55:19,898 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) [2022-11-16 12:55:19,899 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 2131 transitions. [2022-11-16 12:55:19,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-11-16 12:55:19,908 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:55:19,908 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] [2022-11-16 12:55:19,946 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:55:20,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:55:20,132 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:55:20,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:55:20,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1203978336, now seen corresponding path program 2 times [2022-11-16 12:55:20,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:55:20,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1784516101] [2022-11-16 12:55:20,135 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:55:20,136 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 [2022-11-16 12:55:20,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:55:20,138 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 12:55:20,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:55:21,228 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 12:55:21,228 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:55:21,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 1042 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 12:55:21,271 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:55:21,338 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked. [2022-11-16 12:55:21,338 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:55:21,338 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:55:21,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1784516101] [2022-11-16 12:55:21,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1784516101] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:55:21,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:55:21,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:55:21,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164406942] [2022-11-16 12:55:21,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:55:21,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:55:21,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:55:21,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:55:21,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:55:21,340 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) [2022-11-16 12:55:21,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:55:21,690 INFO L93 Difference]: Finished difference Result 4039 states and 5471 transitions. [2022-11-16 12:55:21,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:55:21,691 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 [2022-11-16 12:55:21,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:55:21,704 INFO L225 Difference]: With dead ends: 4039 [2022-11-16 12:55:21,704 INFO L226 Difference]: Without dead ends: 2512 [2022-11-16 12:55:21,710 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 [2022-11-16 12:55:21,711 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, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:55:21,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1302 Valid, 4360 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 12:55:21,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2512 states. [2022-11-16 12:55:21,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2512 to 2509. [2022-11-16 12:55:21,805 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) [2022-11-16 12:55:21,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2509 states to 2509 states and 3394 transitions. [2022-11-16 12:55:21,819 INFO L78 Accepts]: Start accepts. Automaton has 2509 states and 3394 transitions. Word has length 171 [2022-11-16 12:55:21,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:55:21,820 INFO L495 AbstractCegarLoop]: Abstraction has 2509 states and 3394 transitions. [2022-11-16 12:55:21,820 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) [2022-11-16 12:55:21,821 INFO L276 IsEmpty]: Start isEmpty. Operand 2509 states and 3394 transitions. [2022-11-16 12:55:21,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-11-16 12:55:21,828 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:55:21,828 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] [2022-11-16 12:55:21,859 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:55:22,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:55:22,043 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:55:22,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:55:22,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1510709948, now seen corresponding path program 1 times [2022-11-16 12:55:22,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:55:22,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1382411383] [2022-11-16 12:55:22,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:55:22,045 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 [2022-11-16 12:55:22,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:55:22,046 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 12:55:22,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:55:23,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:55:23,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 1495 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 12:55:23,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:55:23,738 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 58 proven. 3 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2022-11-16 12:55:23,739 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:55:24,178 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 58 proven. 3 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2022-11-16 12:55:24,179 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:55:24,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1382411383] [2022-11-16 12:55:24,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1382411383] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:55:24,179 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:55:24,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-16 12:55:24,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305359526] [2022-11-16 12:55:24,180 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:55:24,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 12:55:24,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:55:24,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 12:55:24,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:55:24,182 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) [2022-11-16 12:55:24,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:55:24,806 INFO L93 Difference]: Finished difference Result 4967 states and 6719 transitions. [2022-11-16 12:55:24,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 12:55:24,807 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 [2022-11-16 12:55:24,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:55:24,823 INFO L225 Difference]: With dead ends: 4967 [2022-11-16 12:55:24,823 INFO L226 Difference]: Without dead ends: 2509 [2022-11-16 12:55:24,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 362 GetRequests, 350 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2022-11-16 12:55:24,835 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, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 12:55:24,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 12551 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 12:55:24,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2509 states. [2022-11-16 12:55:24,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2509 to 2509. [2022-11-16 12:55:24,941 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) [2022-11-16 12:55:24,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2509 states to 2509 states and 3390 transitions. [2022-11-16 12:55:24,954 INFO L78 Accepts]: Start accepts. Automaton has 2509 states and 3390 transitions. Word has length 180 [2022-11-16 12:55:24,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:55:24,955 INFO L495 AbstractCegarLoop]: Abstraction has 2509 states and 3390 transitions. [2022-11-16 12:55:24,956 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) [2022-11-16 12:55:24,956 INFO L276 IsEmpty]: Start isEmpty. Operand 2509 states and 3390 transitions. [2022-11-16 12:55:24,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-11-16 12:55:24,964 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:55:24,964 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] [2022-11-16 12:55:25,007 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:55:25,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:55:25,179 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:55:25,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:55:25,179 INFO L85 PathProgramCache]: Analyzing trace with hash 981928252, now seen corresponding path program 2 times [2022-11-16 12:55:25,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:55:25,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [668246735] [2022-11-16 12:55:25,181 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:55:25,182 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 [2022-11-16 12:55:25,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:55:25,184 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 12:55:25,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:55:26,206 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 12:55:26,206 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:55:26,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 994 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-16 12:55:26,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:55:26,368 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2022-11-16 12:55:26,368 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:55:26,368 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:55:26,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [668246735] [2022-11-16 12:55:26,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [668246735] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:55:26,368 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:55:26,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:55:26,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876760597] [2022-11-16 12:55:26,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:55:26,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:55:26,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:55:26,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:55:26,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:55:26,370 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) [2022-11-16 12:55:27,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:55:27,458 INFO L93 Difference]: Finished difference Result 4972 states and 6731 transitions. [2022-11-16 12:55:27,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:55:27,459 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 [2022-11-16 12:55:27,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:55:27,472 INFO L225 Difference]: With dead ends: 4972 [2022-11-16 12:55:27,472 INFO L226 Difference]: Without dead ends: 2519 [2022-11-16 12:55:27,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:55:27,481 INFO L413 NwaCegarLoop]: 2064 mSDtfsCounter, 5 mSDsluCounter, 8203 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s 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, 0.9s IncrementalHoareTripleChecker+Time [2022-11-16 12:55:27,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 10267 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-16 12:55:27,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2519 states. [2022-11-16 12:55:27,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2519 to 2515. [2022-11-16 12:55:27,566 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) [2022-11-16 12:55:27,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2515 states to 2515 states and 3398 transitions. [2022-11-16 12:55:27,577 INFO L78 Accepts]: Start accepts. Automaton has 2515 states and 3398 transitions. Word has length 182 [2022-11-16 12:55:27,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:55:27,577 INFO L495 AbstractCegarLoop]: Abstraction has 2515 states and 3398 transitions. [2022-11-16 12:55:27,578 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) [2022-11-16 12:55:27,578 INFO L276 IsEmpty]: Start isEmpty. Operand 2515 states and 3398 transitions. [2022-11-16 12:55:27,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-11-16 12:55:27,585 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:55:27,586 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] [2022-11-16 12:55:27,620 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:55:27,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:55:27,810 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:55:27,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:55:27,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1624095302, now seen corresponding path program 1 times [2022-11-16 12:55:27,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:55:27,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1404227432] [2022-11-16 12:55:27,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:55:27,812 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 [2022-11-16 12:55:27,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:55:27,814 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 12:55:27,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:55:29,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:55:29,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 1517 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 12:55:29,510 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:55:29,544 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 423 trivial. 0 not checked. [2022-11-16 12:55:29,545 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:55:29,545 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:55:29,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1404227432] [2022-11-16 12:55:29,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1404227432] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:55:29,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:55:29,546 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:55:29,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897880442] [2022-11-16 12:55:29,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:55:29,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:55:29,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:55:29,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:55:29,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:55:29,548 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) [2022-11-16 12:55:30,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:55:30,158 INFO L93 Difference]: Finished difference Result 6078 states and 8169 transitions. [2022-11-16 12:55:30,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:55:30,159 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 [2022-11-16 12:55:30,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:55:30,183 INFO L225 Difference]: With dead ends: 6078 [2022-11-16 12:55:30,183 INFO L226 Difference]: Without dead ends: 3619 [2022-11-16 12:55:30,192 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 [2022-11-16 12:55:30,193 INFO L413 NwaCegarLoop]: 2502 mSDtfsCounter, 1351 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 12:55:30,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1351 Valid, 4438 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 12:55:30,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3619 states. [2022-11-16 12:55:30,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3619 to 3611. [2022-11-16 12:55:30,374 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) [2022-11-16 12:55:30,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3611 states to 3611 states and 4832 transitions. [2022-11-16 12:55:30,397 INFO L78 Accepts]: Start accepts. Automaton has 3611 states and 4832 transitions. Word has length 182 [2022-11-16 12:55:30,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:55:30,398 INFO L495 AbstractCegarLoop]: Abstraction has 3611 states and 4832 transitions. [2022-11-16 12:55:30,399 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) [2022-11-16 12:55:30,399 INFO L276 IsEmpty]: Start isEmpty. Operand 3611 states and 4832 transitions. [2022-11-16 12:55:30,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-11-16 12:55:30,405 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:55:30,405 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] [2022-11-16 12:55:30,443 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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)] Ended with exit code 0 [2022-11-16 12:55:30,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:55:30,627 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:55:30,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:55:30,628 INFO L85 PathProgramCache]: Analyzing trace with hash 899292299, now seen corresponding path program 1 times [2022-11-16 12:55:30,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:55:30,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [168450891] [2022-11-16 12:55:30,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:55:30,629 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 [2022-11-16 12:55:30,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:55:30,632 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 12:55:30,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:55:32,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:55:32,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 1895 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 12:55:32,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:55:32,705 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 413 trivial. 0 not checked. [2022-11-16 12:55:32,705 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:55:32,706 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:55:32,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [168450891] [2022-11-16 12:55:32,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [168450891] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:55:32,706 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:55:32,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:55:32,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642677285] [2022-11-16 12:55:32,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:55:32,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:55:32,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:55:32,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:55:32,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:55:32,708 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) [2022-11-16 12:55:33,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:55:33,458 INFO L93 Difference]: Finished difference Result 7162 states and 9592 transitions. [2022-11-16 12:55:33,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 12:55:33,459 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 [2022-11-16 12:55:33,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:55:33,479 INFO L225 Difference]: With dead ends: 7162 [2022-11-16 12:55:33,479 INFO L226 Difference]: Without dead ends: 3611 [2022-11-16 12:55:33,492 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 [2022-11-16 12:55:33,492 INFO L413 NwaCegarLoop]: 2099 mSDtfsCounter, 1 mSDsluCounter, 4190 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-11-16 12:55:33,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 6289 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-16 12:55:33,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3611 states. [2022-11-16 12:55:33,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3611 to 3611. [2022-11-16 12:55:33,642 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) [2022-11-16 12:55:33,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3611 states to 3611 states and 4824 transitions. [2022-11-16 12:55:33,656 INFO L78 Accepts]: Start accepts. Automaton has 3611 states and 4824 transitions. Word has length 199 [2022-11-16 12:55:33,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:55:33,657 INFO L495 AbstractCegarLoop]: Abstraction has 3611 states and 4824 transitions. [2022-11-16 12:55:33,657 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) [2022-11-16 12:55:33,657 INFO L276 IsEmpty]: Start isEmpty. Operand 3611 states and 4824 transitions. [2022-11-16 12:55:33,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-11-16 12:55:33,663 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:55:33,663 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] [2022-11-16 12:55:33,711 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:55:33,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:55:33,880 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:55:33,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:55:33,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1388549405, now seen corresponding path program 1 times [2022-11-16 12:55:33,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:55:33,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1625668997] [2022-11-16 12:55:33,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:55:33,883 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 [2022-11-16 12:55:33,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:55:33,884 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 12:55:33,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:55:35,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:55:36,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 1925 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 12:55:36,044 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:55:36,195 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 413 trivial. 0 not checked. [2022-11-16 12:55:36,195 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:55:36,195 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:55:36,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1625668997] [2022-11-16 12:55:36,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1625668997] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:55:36,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:55:36,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:55:36,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037977765] [2022-11-16 12:55:36,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:55:36,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:55:36,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:55:36,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:55:36,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:55:36,199 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) [2022-11-16 12:55:37,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:55:37,326 INFO L93 Difference]: Finished difference Result 9407 states and 12569 transitions. [2022-11-16 12:55:37,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:55:37,327 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 [2022-11-16 12:55:37,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:55:37,366 INFO L225 Difference]: With dead ends: 9407 [2022-11-16 12:55:37,366 INFO L226 Difference]: Without dead ends: 5864 [2022-11-16 12:55:37,381 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 [2022-11-16 12:55:37,383 INFO L413 NwaCegarLoop]: 3396 mSDtfsCounter, 1958 mSDsluCounter, 1962 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s 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 [2022-11-16 12:55:37,384 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] [2022-11-16 12:55:37,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5864 states. [2022-11-16 12:55:37,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5864 to 5842. [2022-11-16 12:55:37,692 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) [2022-11-16 12:55:37,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5842 states to 5842 states and 7784 transitions. [2022-11-16 12:55:37,715 INFO L78 Accepts]: Start accepts. Automaton has 5842 states and 7784 transitions. Word has length 206 [2022-11-16 12:55:37,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:55:37,715 INFO L495 AbstractCegarLoop]: Abstraction has 5842 states and 7784 transitions. [2022-11-16 12:55:37,716 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) [2022-11-16 12:55:37,716 INFO L276 IsEmpty]: Start isEmpty. Operand 5842 states and 7784 transitions. [2022-11-16 12:55:37,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-11-16 12:55:37,722 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:55:37,722 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] [2022-11-16 12:55:37,772 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:55:37,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:55:37,947 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:55:37,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:55:37,948 INFO L85 PathProgramCache]: Analyzing trace with hash -557601505, now seen corresponding path program 1 times [2022-11-16 12:55:37,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:55:37,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1186102643] [2022-11-16 12:55:37,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:55:37,950 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 [2022-11-16 12:55:37,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:55:37,951 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 12:55:37,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:55:40,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:55:40,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 1924 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-16 12:55:40,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:55:40,161 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2022-11-16 12:55:40,162 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:55:40,162 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:55:40,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1186102643] [2022-11-16 12:55:40,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1186102643] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:55:40,162 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:55:40,162 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:55:40,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939676414] [2022-11-16 12:55:40,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:55:40,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:55:40,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:55:40,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:55:40,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:55:40,164 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) [2022-11-16 12:55:40,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:55:40,528 INFO L93 Difference]: Finished difference Result 11668 states and 15568 transitions. [2022-11-16 12:55:40,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:55:40,528 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 [2022-11-16 12:55:40,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:55:40,575 INFO L225 Difference]: With dead ends: 11668 [2022-11-16 12:55:40,575 INFO L226 Difference]: Without dead ends: 5894 [2022-11-16 12:55:40,592 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 [2022-11-16 12:55:40,593 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 [2022-11-16 12:55:40,594 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] [2022-11-16 12:55:40,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5894 states. [2022-11-16 12:55:40,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5894 to 5882. [2022-11-16 12:55:40,839 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) [2022-11-16 12:55:40,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5882 states to 5882 states and 7824 transitions. [2022-11-16 12:55:40,863 INFO L78 Accepts]: Start accepts. Automaton has 5882 states and 7824 transitions. Word has length 205 [2022-11-16 12:55:40,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:55:40,864 INFO L495 AbstractCegarLoop]: Abstraction has 5882 states and 7824 transitions. [2022-11-16 12:55:40,864 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) [2022-11-16 12:55:40,864 INFO L276 IsEmpty]: Start isEmpty. Operand 5882 states and 7824 transitions. [2022-11-16 12:55:40,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-11-16 12:55:40,870 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:55:40,871 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] [2022-11-16 12:55:40,912 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:55:41,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:55:41,087 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:55:41,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:55:41,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1784073255, now seen corresponding path program 1 times [2022-11-16 12:55:41,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:55:41,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [41127548] [2022-11-16 12:55:41,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:55:41,090 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 [2022-11-16 12:55:41,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:55:41,092 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 12:55:41,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:55:43,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:55:43,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 1924 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-16 12:55:43,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:55:44,835 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 487 trivial. 0 not checked. [2022-11-16 12:55:44,835 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:55:44,836 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:55:44,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [41127548] [2022-11-16 12:55:44,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [41127548] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:55:44,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:55:44,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:55:44,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860017009] [2022-11-16 12:55:44,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:55:44,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 12:55:44,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:55:44,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 12:55:44,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:55:44,838 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) [2022-11-16 12:55:48,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:55:48,846 INFO L93 Difference]: Finished difference Result 13530 states and 18430 transitions. [2022-11-16 12:55:48,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 12:55:48,847 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 [2022-11-16 12:55:48,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:55:48,883 INFO L225 Difference]: With dead ends: 13530 [2022-11-16 12:55:48,883 INFO L226 Difference]: Without dead ends: 7716 [2022-11-16 12:55:48,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2022-11-16 12:55:48,918 INFO L413 NwaCegarLoop]: 2282 mSDtfsCounter, 816 mSDsluCounter, 22608 mSDsCounter, 0 mSdLazyCounter, 622 mSolverCounterSat, 234 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s 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, 2.9s IncrementalHoareTripleChecker+Time [2022-11-16 12:55:48,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [894 Valid, 24890 Invalid, 856 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [234 Valid, 622 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-16 12:55:48,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7716 states. [2022-11-16 12:55:49,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7716 to 5910. [2022-11-16 12:55:49,359 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) [2022-11-16 12:55:49,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5910 states to 5910 states and 7880 transitions. [2022-11-16 12:55:49,378 INFO L78 Accepts]: Start accepts. Automaton has 5910 states and 7880 transitions. Word has length 205 [2022-11-16 12:55:49,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:55:49,380 INFO L495 AbstractCegarLoop]: Abstraction has 5910 states and 7880 transitions. [2022-11-16 12:55:49,380 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) [2022-11-16 12:55:49,381 INFO L276 IsEmpty]: Start isEmpty. Operand 5910 states and 7880 transitions. [2022-11-16 12:55:49,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-11-16 12:55:49,387 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:55:49,387 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] [2022-11-16 12:55:49,432 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:55:49,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:55:49,603 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:55:49,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:55:49,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1675986296, now seen corresponding path program 1 times [2022-11-16 12:55:49,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:55:49,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1579623274] [2022-11-16 12:55:49,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:55:49,606 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 [2022-11-16 12:55:49,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:55:49,607 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 12:55:49,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:55:52,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:55:52,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 1926 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 12:55:52,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:55:52,144 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 489 trivial. 0 not checked. [2022-11-16 12:55:52,144 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:55:52,144 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:55:52,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1579623274] [2022-11-16 12:55:52,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1579623274] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:55:52,145 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:55:52,145 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:55:52,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690105301] [2022-11-16 12:55:52,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:55:52,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:55:52,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:55:52,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:55:52,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:55:52,147 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) [2022-11-16 12:55:52,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:55:52,652 INFO L93 Difference]: Finished difference Result 12664 states and 17100 transitions. [2022-11-16 12:55:52,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:55:52,653 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 [2022-11-16 12:55:52,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:55:52,688 INFO L225 Difference]: With dead ends: 12664 [2022-11-16 12:55:52,688 INFO L226 Difference]: Without dead ends: 6822 [2022-11-16 12:55:52,704 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 [2022-11-16 12:55:52,705 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 [2022-11-16 12:55:52,706 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] [2022-11-16 12:55:52,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6822 states. [2022-11-16 12:55:53,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6822 to 5914. [2022-11-16 12:55:53,106 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) [2022-11-16 12:55:53,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5914 states to 5914 states and 7884 transitions. [2022-11-16 12:55:53,127 INFO L78 Accepts]: Start accepts. Automaton has 5914 states and 7884 transitions. Word has length 206 [2022-11-16 12:55:53,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:55:53,128 INFO L495 AbstractCegarLoop]: Abstraction has 5914 states and 7884 transitions. [2022-11-16 12:55:53,128 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) [2022-11-16 12:55:53,128 INFO L276 IsEmpty]: Start isEmpty. Operand 5914 states and 7884 transitions. [2022-11-16 12:55:53,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-11-16 12:55:53,136 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:55:53,136 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] [2022-11-16 12:55:53,182 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:55:53,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:55:53,359 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:55:53,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:55:53,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1643827990, now seen corresponding path program 1 times [2022-11-16 12:55:53,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:55:53,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1042395289] [2022-11-16 12:55:53,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:55:53,361 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 [2022-11-16 12:55:53,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:55:53,362 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 12:55:53,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:55:55,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:55:55,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 1967 conjuncts, 41 conjunts are in the unsatisfiable core [2022-11-16 12:55:55,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:55:57,512 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 497 trivial. 0 not checked. [2022-11-16 12:55:57,513 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:55:57,513 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:55:57,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1042395289] [2022-11-16 12:55:57,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1042395289] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:55:57,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:55:57,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 12:55:57,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278273771] [2022-11-16 12:55:57,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:55:57,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-16 12:55:57,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:55:57,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-16 12:55:57,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=239, Unknown=0, NotChecked=0, Total=272 [2022-11-16 12:55:57,518 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) [2022-11-16 12:56:02,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:56:02,906 INFO L93 Difference]: Finished difference Result 11772 states and 15712 transitions. [2022-11-16 12:56:02,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 12:56:02,907 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 [2022-11-16 12:56:02,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:56:02,934 INFO L225 Difference]: With dead ends: 11772 [2022-11-16 12:56:02,935 INFO L226 Difference]: Without dead ends: 5926 [2022-11-16 12:56:02,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2022-11-16 12:56:02,954 INFO L413 NwaCegarLoop]: 2059 mSDtfsCounter, 618 mSDsluCounter, 29851 mSDsCounter, 0 mSdLazyCounter, 1002 mSolverCounterSat, 231 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s 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, 4.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:56:02,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [621 Valid, 31910 Invalid, 1233 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [231 Valid, 1002 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-11-16 12:56:02,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5926 states. [2022-11-16 12:56:03,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5926 to 5872. [2022-11-16 12:56:03,359 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) [2022-11-16 12:56:03,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5872 states to 5872 states and 7808 transitions. [2022-11-16 12:56:03,379 INFO L78 Accepts]: Start accepts. Automaton has 5872 states and 7808 transitions. Word has length 225 [2022-11-16 12:56:03,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:56:03,380 INFO L495 AbstractCegarLoop]: Abstraction has 5872 states and 7808 transitions. [2022-11-16 12:56:03,380 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) [2022-11-16 12:56:03,381 INFO L276 IsEmpty]: Start isEmpty. Operand 5872 states and 7808 transitions. [2022-11-16 12:56:03,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-11-16 12:56:03,389 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:56:03,389 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] [2022-11-16 12:56:03,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:56:03,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:56:03,605 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:56:03,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:56:03,605 INFO L85 PathProgramCache]: Analyzing trace with hash -222099760, now seen corresponding path program 1 times [2022-11-16 12:56:03,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:56:03,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [592992571] [2022-11-16 12:56:03,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:56:03,607 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 [2022-11-16 12:56:03,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:56:03,608 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 12:56:03,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:56:06,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:56:06,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 1956 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 12:56:06,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:56:06,273 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 489 trivial. 0 not checked. [2022-11-16 12:56:06,273 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:56:06,273 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:56:06,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [592992571] [2022-11-16 12:56:06,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [592992571] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:56:06,274 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:56:06,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:56:06,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111060722] [2022-11-16 12:56:06,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:56:06,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:56:06,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:56:06,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:56:06,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:56:06,276 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) [2022-11-16 12:56:09,548 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:56:09,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:56:09,673 INFO L93 Difference]: Finished difference Result 11880 states and 15848 transitions. [2022-11-16 12:56:09,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 12:56:09,674 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 [2022-11-16 12:56:09,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:56:09,699 INFO L225 Difference]: With dead ends: 11880 [2022-11-16 12:56:09,699 INFO L226 Difference]: Without dead ends: 6076 [2022-11-16 12:56:09,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:56:09,717 INFO L413 NwaCegarLoop]: 2117 mSDtfsCounter, 79 mSDsluCounter, 4141 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s 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, 3.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:56:09,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 6258 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-16 12:56:09,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6076 states. [2022-11-16 12:56:10,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6076 to 5880. [2022-11-16 12:56:10,139 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) [2022-11-16 12:56:10,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5880 states to 5880 states and 7816 transitions. [2022-11-16 12:56:10,159 INFO L78 Accepts]: Start accepts. Automaton has 5880 states and 7816 transitions. Word has length 213 [2022-11-16 12:56:10,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:56:10,160 INFO L495 AbstractCegarLoop]: Abstraction has 5880 states and 7816 transitions. [2022-11-16 12:56:10,160 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) [2022-11-16 12:56:10,160 INFO L276 IsEmpty]: Start isEmpty. Operand 5880 states and 7816 transitions. [2022-11-16 12:56:10,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-11-16 12:56:10,169 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:56:10,169 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] [2022-11-16 12:56:10,213 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:56:10,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:56:10,391 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:56:10,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:56:10,391 INFO L85 PathProgramCache]: Analyzing trace with hash 237527887, now seen corresponding path program 1 times [2022-11-16 12:56:10,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:56:10,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [609672033] [2022-11-16 12:56:10,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:56:10,394 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 [2022-11-16 12:56:10,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:56:10,395 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 12:56:10,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:56:12,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:56:12,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 1960 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 12:56:12,960 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:56:12,985 INFO L134 CoverageAnalysis]: Checked inductivity of 490 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 489 trivial. 0 not checked. [2022-11-16 12:56:12,985 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:56:12,985 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:56:12,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [609672033] [2022-11-16 12:56:12,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [609672033] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:56:12,986 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:56:12,986 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:56:12,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638083352] [2022-11-16 12:56:12,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:56:12,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:56:12,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:56:12,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:56:12,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:56:12,988 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) [2022-11-16 12:56:13,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:56:13,456 INFO L93 Difference]: Finished difference Result 11696 states and 15566 transitions. [2022-11-16 12:56:13,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:56:13,458 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 [2022-11-16 12:56:13,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:56:13,478 INFO L225 Difference]: With dead ends: 11696 [2022-11-16 12:56:13,478 INFO L226 Difference]: Without dead ends: 5884 [2022-11-16 12:56:13,492 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 [2022-11-16 12:56:13,493 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 [2022-11-16 12:56:13,493 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] [2022-11-16 12:56:13,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5884 states. [2022-11-16 12:56:13,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5884 to 5884. [2022-11-16 12:56:13,863 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) [2022-11-16 12:56:13,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5884 states to 5884 states and 7820 transitions. [2022-11-16 12:56:13,883 INFO L78 Accepts]: Start accepts. Automaton has 5884 states and 7820 transitions. Word has length 214 [2022-11-16 12:56:13,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:56:13,884 INFO L495 AbstractCegarLoop]: Abstraction has 5884 states and 7820 transitions. [2022-11-16 12:56:13,885 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) [2022-11-16 12:56:13,885 INFO L276 IsEmpty]: Start isEmpty. Operand 5884 states and 7820 transitions. [2022-11-16 12:56:13,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-11-16 12:56:13,893 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:56:13,894 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] [2022-11-16 12:56:13,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:56:14,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:56:14,115 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:56:14,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:56:14,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1042335791, now seen corresponding path program 1 times [2022-11-16 12:56:14,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:56:14,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [25047044] [2022-11-16 12:56:14,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:56:14,118 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 [2022-11-16 12:56:14,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:56:14,120 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 12:56:14,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:56:16,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:56:16,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 1964 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 12:56:16,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:56:16,781 INFO L134 CoverageAnalysis]: Checked inductivity of 490 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 489 trivial. 0 not checked. [2022-11-16 12:56:16,782 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:56:16,948 INFO L134 CoverageAnalysis]: Checked inductivity of 490 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 489 trivial. 0 not checked. [2022-11-16 12:56:16,949 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:56:16,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [25047044] [2022-11-16 12:56:16,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [25047044] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:56:16,949 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:56:16,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-11-16 12:56:16,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288942714] [2022-11-16 12:56:16,950 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:56:16,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:56:16,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:56:16,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:56:16,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:56:16,951 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) [2022-11-16 12:56:18,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:56:18,269 INFO L93 Difference]: Finished difference Result 12604 states and 16922 transitions. [2022-11-16 12:56:18,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:56:18,271 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 [2022-11-16 12:56:18,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:56:18,296 INFO L225 Difference]: With dead ends: 12604 [2022-11-16 12:56:18,297 INFO L226 Difference]: Without dead ends: 6788 [2022-11-16 12:56:18,309 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 [2022-11-16 12:56:18,310 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 [2022-11-16 12:56:18,311 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] [2022-11-16 12:56:18,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6788 states. [2022-11-16 12:56:18,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6788 to 5944. [2022-11-16 12:56:18,695 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) [2022-11-16 12:56:18,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5944 states to 5944 states and 7916 transitions. [2022-11-16 12:56:18,716 INFO L78 Accepts]: Start accepts. Automaton has 5944 states and 7916 transitions. Word has length 214 [2022-11-16 12:56:18,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:56:18,718 INFO L495 AbstractCegarLoop]: Abstraction has 5944 states and 7916 transitions. [2022-11-16 12:56:18,718 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) [2022-11-16 12:56:18,718 INFO L276 IsEmpty]: Start isEmpty. Operand 5944 states and 7916 transitions. [2022-11-16 12:56:18,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2022-11-16 12:56:18,729 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:56:18,729 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] [2022-11-16 12:56:18,772 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:56:18,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:56:18,951 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:56:18,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:56:18,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1399236180, now seen corresponding path program 2 times [2022-11-16 12:56:18,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:56:18,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2019789745] [2022-11-16 12:56:18,954 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:56:18,954 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 [2022-11-16 12:56:18,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:56:18,955 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 12:56:18,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:56:20,176 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 12:56:20,176 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:56:20,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 1021 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 12:56:20,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:56:21,405 INFO L134 CoverageAnalysis]: Checked inductivity of 541 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 541 trivial. 0 not checked. [2022-11-16 12:56:21,406 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:56:21,406 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:56:21,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2019789745] [2022-11-16 12:56:21,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2019789745] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:56:21,406 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:56:21,407 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:56:21,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893273591] [2022-11-16 12:56:21,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:56:21,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:56:21,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:56:21,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:56:21,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:56:21,409 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) [2022-11-16 12:56:21,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:56:21,866 INFO L93 Difference]: Finished difference Result 10486 states and 13983 transitions. [2022-11-16 12:56:21,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:56:21,867 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 [2022-11-16 12:56:21,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:56:21,906 INFO L225 Difference]: With dead ends: 10486 [2022-11-16 12:56:21,906 INFO L226 Difference]: Without dead ends: 10483 [2022-11-16 12:56:21,913 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 [2022-11-16 12:56:21,913 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 [2022-11-16 12:56:21,914 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] [2022-11-16 12:56:21,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10483 states. [2022-11-16 12:56:22,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10483 to 10415. [2022-11-16 12:56:22,668 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) [2022-11-16 12:56:22,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10415 states to 10415 states and 13874 transitions. [2022-11-16 12:56:22,832 INFO L78 Accepts]: Start accepts. Automaton has 10415 states and 13874 transitions. Word has length 238 [2022-11-16 12:56:22,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:56:22,833 INFO L495 AbstractCegarLoop]: Abstraction has 10415 states and 13874 transitions. [2022-11-16 12:56:22,833 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) [2022-11-16 12:56:22,833 INFO L276 IsEmpty]: Start isEmpty. Operand 10415 states and 13874 transitions. [2022-11-16 12:56:22,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-11-16 12:56:22,852 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:56:22,852 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] [2022-11-16 12:56:22,880 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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)] Ended with exit code 0 [2022-11-16 12:56:23,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:56:23,072 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:56:23,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:56:23,073 INFO L85 PathProgramCache]: Analyzing trace with hash -2062563261, now seen corresponding path program 1 times [2022-11-16 12:56:23,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:56:23,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [143429794] [2022-11-16 12:56:23,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:56:23,076 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 [2022-11-16 12:56:23,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:56:23,078 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 12:56:23,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:56:24,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:56:25,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 1787 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-16 12:56:25,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:56:25,902 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 506 trivial. 0 not checked. [2022-11-16 12:56:25,902 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:56:25,902 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:56:25,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [143429794] [2022-11-16 12:56:25,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [143429794] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:56:25,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:56:25,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:56:25,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998536744] [2022-11-16 12:56:25,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:56:25,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 12:56:25,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:56:25,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 12:56:25,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:56:25,905 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) [2022-11-16 12:56:30,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:56:30,306 INFO L93 Difference]: Finished difference Result 23378 states and 31753 transitions. [2022-11-16 12:56:30,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 12:56:30,307 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 [2022-11-16 12:56:30,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:56:30,354 INFO L225 Difference]: With dead ends: 23378 [2022-11-16 12:56:30,355 INFO L226 Difference]: Without dead ends: 13031 [2022-11-16 12:56:30,379 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2022-11-16 12:56:30,380 INFO L413 NwaCegarLoop]: 2725 mSDtfsCounter, 1400 mSDsluCounter, 25472 mSDsCounter, 0 mSdLazyCounter, 775 mSolverCounterSat, 398 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s 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, 3.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:56:30,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1401 Valid, 28197 Invalid, 1173 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [398 Valid, 775 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-16 12:56:30,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13031 states. [2022-11-16 12:56:31,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13031 to 10431. [2022-11-16 12:56:31,281 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) [2022-11-16 12:56:31,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10431 states to 10431 states and 13894 transitions. [2022-11-16 12:56:31,315 INFO L78 Accepts]: Start accepts. Automaton has 10431 states and 13894 transitions. Word has length 274 [2022-11-16 12:56:31,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:56:31,316 INFO L495 AbstractCegarLoop]: Abstraction has 10431 states and 13894 transitions. [2022-11-16 12:56:31,316 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) [2022-11-16 12:56:31,316 INFO L276 IsEmpty]: Start isEmpty. Operand 10431 states and 13894 transitions. [2022-11-16 12:56:31,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2022-11-16 12:56:31,329 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:56:31,330 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] [2022-11-16 12:56:31,363 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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)] Ended with exit code 0 [2022-11-16 12:56:31,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:56:31,551 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:56:31,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:56:31,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1349736490, now seen corresponding path program 1 times [2022-11-16 12:56:31,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:56:31,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [566782297] [2022-11-16 12:56:31,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:56:31,555 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 [2022-11-16 12:56:31,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:56:31,556 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 12:56:31,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:56:33,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:56:34,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 2005 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-16 12:56:34,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:56:34,203 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 518 trivial. 0 not checked. [2022-11-16 12:56:34,203 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:56:34,203 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:56:34,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [566782297] [2022-11-16 12:56:34,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [566782297] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:56:34,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:56:34,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:56:34,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000536180] [2022-11-16 12:56:34,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:56:34,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:56:34,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:56:34,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:56:34,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:56:34,206 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) [2022-11-16 12:56:36,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:56:38,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:56:38,206 INFO L93 Difference]: Finished difference Result 23448 states and 31885 transitions. [2022-11-16 12:56:38,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:56:38,207 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 [2022-11-16 12:56:38,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:56:38,329 INFO L225 Difference]: With dead ends: 23448 [2022-11-16 12:56:38,329 INFO L226 Difference]: Without dead ends: 13085 [2022-11-16 12:56:38,349 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:56:38,350 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 [2022-11-16 12:56:38,350 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] [2022-11-16 12:56:38,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13085 states. [2022-11-16 12:56:39,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13085 to 10451. [2022-11-16 12:56:39,294 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) [2022-11-16 12:56:39,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10451 states to 10451 states and 13942 transitions. [2022-11-16 12:56:39,329 INFO L78 Accepts]: Start accepts. Automaton has 10451 states and 13942 transitions. Word has length 295 [2022-11-16 12:56:39,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:56:39,330 INFO L495 AbstractCegarLoop]: Abstraction has 10451 states and 13942 transitions. [2022-11-16 12:56:39,330 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) [2022-11-16 12:56:39,330 INFO L276 IsEmpty]: Start isEmpty. Operand 10451 states and 13942 transitions. [2022-11-16 12:56:39,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2022-11-16 12:56:39,344 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:56:39,344 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] [2022-11-16 12:56:39,388 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:56:39,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:56:39,567 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:56:39,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:56:39,568 INFO L85 PathProgramCache]: Analyzing trace with hash 906735213, now seen corresponding path program 1 times [2022-11-16 12:56:39,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:56:39,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2139659595] [2022-11-16 12:56:39,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:56:39,570 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 [2022-11-16 12:56:39,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:56:39,571 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 12:56:39,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:56:42,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:56:42,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 2048 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-16 12:56:42,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:56:42,523 INFO L134 CoverageAnalysis]: Checked inductivity of 588 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 518 trivial. 0 not checked. [2022-11-16 12:56:42,523 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:56:42,523 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:56:42,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2139659595] [2022-11-16 12:56:42,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2139659595] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:56:42,525 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:56:42,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:56:42,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561289244] [2022-11-16 12:56:42,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:56:42,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:56:42,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:56:42,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:56:42,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:56:42,527 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) [2022-11-16 12:56:44,903 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 [] [2022-11-16 12:56:47,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:56:47,011 INFO L93 Difference]: Finished difference Result 26204 states and 36184 transitions. [2022-11-16 12:56:47,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:56:47,012 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 [2022-11-16 12:56:47,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:56:47,052 INFO L225 Difference]: With dead ends: 26204 [2022-11-16 12:56:47,052 INFO L226 Difference]: Without dead ends: 15821 [2022-11-16 12:56:47,069 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 310 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:56:47,070 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 [2022-11-16 12:56:47,070 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] [2022-11-16 12:56:47,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15821 states. [2022-11-16 12:56:47,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15821 to 10461. [2022-11-16 12:56:47,979 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) [2022-11-16 12:56:48,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10461 states to 10461 states and 13952 transitions. [2022-11-16 12:56:48,017 INFO L78 Accepts]: Start accepts. Automaton has 10461 states and 13952 transitions. Word has length 315 [2022-11-16 12:56:48,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:56:48,018 INFO L495 AbstractCegarLoop]: Abstraction has 10461 states and 13952 transitions. [2022-11-16 12:56:48,018 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) [2022-11-16 12:56:48,018 INFO L276 IsEmpty]: Start isEmpty. Operand 10461 states and 13952 transitions. [2022-11-16 12:56:48,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2022-11-16 12:56:48,031 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:56:48,032 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] [2022-11-16 12:56:48,081 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:56:48,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:56:48,255 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:56:48,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:56:48,256 INFO L85 PathProgramCache]: Analyzing trace with hash -838413328, now seen corresponding path program 1 times [2022-11-16 12:56:48,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:56:48,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [537311295] [2022-11-16 12:56:48,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:56:48,258 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 [2022-11-16 12:56:48,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:56:48,259 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 12:56:48,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:56:50,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:56:50,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 2091 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-16 12:56:50,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:56:51,073 INFO L134 CoverageAnalysis]: Checked inductivity of 634 backedges. 94 proven. 3 refuted. 0 times theorem prover too weak. 537 trivial. 0 not checked. [2022-11-16 12:56:51,073 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:56:52,165 INFO L134 CoverageAnalysis]: Checked inductivity of 634 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 616 trivial. 0 not checked. [2022-11-16 12:56:52,165 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:56:52,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [537311295] [2022-11-16 12:56:52,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [537311295] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:56:52,166 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:56:52,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 16 [2022-11-16 12:56:52,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695491602] [2022-11-16 12:56:52,166 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:56:52,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-16 12:56:52,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:56:52,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-16 12:56:52,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-16 12:56:52,168 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) [2022-11-16 12:56:55,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:56:55,351 INFO L93 Difference]: Finished difference Result 26226 states and 36200 transitions. [2022-11-16 12:56:55,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 12:56:55,352 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 [2022-11-16 12:56:55,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:56:55,403 INFO L225 Difference]: With dead ends: 26226 [2022-11-16 12:56:55,403 INFO L226 Difference]: Without dead ends: 15833 [2022-11-16 12:56:55,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 672 GetRequests, 655 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-11-16 12:56:55,425 INFO L413 NwaCegarLoop]: 3029 mSDtfsCounter, 1499 mSDsluCounter, 31286 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 294 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s 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, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 12:56:55,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1636 Valid, 34315 Invalid, 475 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [294 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 12:56:55,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15833 states. [2022-11-16 12:56:56,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15833 to 10461. [2022-11-16 12:56:56,562 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) [2022-11-16 12:56:56,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10461 states to 10461 states and 13948 transitions. [2022-11-16 12:56:56,590 INFO L78 Accepts]: Start accepts. Automaton has 10461 states and 13948 transitions. Word has length 335 [2022-11-16 12:56:56,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:56:56,591 INFO L495 AbstractCegarLoop]: Abstraction has 10461 states and 13948 transitions. [2022-11-16 12:56:56,591 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) [2022-11-16 12:56:56,591 INFO L276 IsEmpty]: Start isEmpty. Operand 10461 states and 13948 transitions. [2022-11-16 12:56:56,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2022-11-16 12:56:56,600 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:56:56,601 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] [2022-11-16 12:56:56,643 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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)] Ended with exit code 0 [2022-11-16 12:56:56,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:56:56,802 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:56:56,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:56:56,802 INFO L85 PathProgramCache]: Analyzing trace with hash -1711004083, now seen corresponding path program 1 times [2022-11-16 12:56:56,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:56:56,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1684271626] [2022-11-16 12:56:56,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:56:56,804 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 [2022-11-16 12:56:56,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:56:56,806 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 12:56:56,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:56:58,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:56:59,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 1925 conjuncts, 26 conjunts are in the unsatisfiable core [2022-11-16 12:56:59,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:57:00,153 INFO L134 CoverageAnalysis]: Checked inductivity of 588 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 516 trivial. 0 not checked. [2022-11-16 12:57:00,153 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:57:00,153 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:57:00,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1684271626] [2022-11-16 12:57:00,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1684271626] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:57:00,154 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:57:00,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 12:57:00,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88598084] [2022-11-16 12:57:00,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:57:00,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:57:00,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:57:00,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:57:00,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:57:00,160 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) [2022-11-16 12:57:05,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:57:05,090 INFO L93 Difference]: Finished difference Result 23984 states and 32678 transitions. [2022-11-16 12:57:05,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 12:57:05,091 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 [2022-11-16 12:57:05,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:57:05,127 INFO L225 Difference]: With dead ends: 23984 [2022-11-16 12:57:05,127 INFO L226 Difference]: Without dead ends: 13591 [2022-11-16 12:57:05,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 310 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=61, Invalid=319, Unknown=0, NotChecked=0, Total=380 [2022-11-16 12:57:05,147 INFO L413 NwaCegarLoop]: 2357 mSDtfsCounter, 1051 mSDsluCounter, 25356 mSDsCounter, 0 mSdLazyCounter, 898 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s 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, 3.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:57:05,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1195 Valid, 27713 Invalid, 965 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [67 Valid, 898 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-11-16 12:57:05,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13591 states. [2022-11-16 12:57:06,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13591 to 10461. [2022-11-16 12:57:06,109 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) [2022-11-16 12:57:06,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10461 states to 10461 states and 13948 transitions. [2022-11-16 12:57:06,133 INFO L78 Accepts]: Start accepts. Automaton has 10461 states and 13948 transitions. Word has length 321 [2022-11-16 12:57:06,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:57:06,134 INFO L495 AbstractCegarLoop]: Abstraction has 10461 states and 13948 transitions. [2022-11-16 12:57:06,134 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) [2022-11-16 12:57:06,134 INFO L276 IsEmpty]: Start isEmpty. Operand 10461 states and 13948 transitions. [2022-11-16 12:57:06,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2022-11-16 12:57:06,142 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:57:06,143 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] [2022-11-16 12:57:06,170 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:57:06,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:57:06,343 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:57:06,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:57:06,344 INFO L85 PathProgramCache]: Analyzing trace with hash 81159158, now seen corresponding path program 1 times [2022-11-16 12:57:06,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:57:06,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [144220889] [2022-11-16 12:57:06,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:57:06,345 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 [2022-11-16 12:57:06,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:57:06,346 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 12:57:06,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:57:08,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:57:08,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 2116 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 12:57:08,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:57:08,761 INFO L134 CoverageAnalysis]: Checked inductivity of 634 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 606 trivial. 0 not checked. [2022-11-16 12:57:08,761 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:57:08,761 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:57:08,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [144220889] [2022-11-16 12:57:08,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [144220889] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:57:08,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:57:08,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:57:08,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999427608] [2022-11-16 12:57:08,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:57:08,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:57:08,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:57:08,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:57:08,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:57:08,763 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) [2022-11-16 12:57:10,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:57:10,090 INFO L93 Difference]: Finished difference Result 20864 states and 27830 transitions. [2022-11-16 12:57:10,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:57:10,092 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 [2022-11-16 12:57:10,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:57:10,128 INFO L225 Difference]: With dead ends: 20864 [2022-11-16 12:57:10,129 INFO L226 Difference]: Without dead ends: 10471 [2022-11-16 12:57:10,156 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 [2022-11-16 12:57:10,156 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 [2022-11-16 12:57:10,157 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] [2022-11-16 12:57:10,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10471 states. [2022-11-16 12:57:11,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10471 to 10463. [2022-11-16 12:57:11,101 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) [2022-11-16 12:57:11,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10463 states to 10463 states and 13950 transitions. [2022-11-16 12:57:11,136 INFO L78 Accepts]: Start accepts. Automaton has 10463 states and 13950 transitions. Word has length 344 [2022-11-16 12:57:11,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:57:11,137 INFO L495 AbstractCegarLoop]: Abstraction has 10463 states and 13950 transitions. [2022-11-16 12:57:11,137 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) [2022-11-16 12:57:11,137 INFO L276 IsEmpty]: Start isEmpty. Operand 10463 states and 13950 transitions. [2022-11-16 12:57:11,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2022-11-16 12:57:11,145 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:57:11,146 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] [2022-11-16 12:57:11,192 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:57:11,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:57:11,346 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:57:11,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:57:11,347 INFO L85 PathProgramCache]: Analyzing trace with hash -445390448, now seen corresponding path program 1 times [2022-11-16 12:57:11,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:57:11,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [603975647] [2022-11-16 12:57:11,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:57:11,349 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 [2022-11-16 12:57:11,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:57:11,350 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 12:57:11,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:57:13,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:57:13,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 2128 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 12:57:13,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:57:13,896 INFO L134 CoverageAnalysis]: Checked inductivity of 635 backedges. 28 proven. 1 refuted. 0 times theorem prover too weak. 606 trivial. 0 not checked. [2022-11-16 12:57:13,896 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:57:14,129 INFO L134 CoverageAnalysis]: Checked inductivity of 635 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2022-11-16 12:57:14,129 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:57:14,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [603975647] [2022-11-16 12:57:14,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [603975647] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:57:14,129 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:57:14,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-11-16 12:57:14,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296990719] [2022-11-16 12:57:14,130 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:57:14,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:57:14,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:57:14,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:57:14,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:57:14,131 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) [2022-11-16 12:57:17,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:57:17,337 INFO L93 Difference]: Finished difference Result 23690 states and 32209 transitions. [2022-11-16 12:57:17,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:57:17,338 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 [2022-11-16 12:57:17,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:57:17,378 INFO L225 Difference]: With dead ends: 23690 [2022-11-16 12:57:17,378 INFO L226 Difference]: Without dead ends: 13295 [2022-11-16 12:57:17,396 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 [2022-11-16 12:57:17,396 INFO L413 NwaCegarLoop]: 2593 mSDtfsCounter, 526 mSDsluCounter, 5616 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s 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, 1.8s IncrementalHoareTripleChecker+Time [2022-11-16 12:57:17,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [675 Valid, 8209 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-16 12:57:17,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13295 states. [2022-11-16 12:57:18,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13295 to 10483. [2022-11-16 12:57:18,401 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) [2022-11-16 12:57:18,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10483 states to 10483 states and 13974 transitions. [2022-11-16 12:57:18,435 INFO L78 Accepts]: Start accepts. Automaton has 10483 states and 13974 transitions. Word has length 348 [2022-11-16 12:57:18,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:57:18,436 INFO L495 AbstractCegarLoop]: Abstraction has 10483 states and 13974 transitions. [2022-11-16 12:57:18,436 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) [2022-11-16 12:57:18,436 INFO L276 IsEmpty]: Start isEmpty. Operand 10483 states and 13974 transitions. [2022-11-16 12:57:18,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2022-11-16 12:57:18,449 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:57:18,450 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] [2022-11-16 12:57:18,493 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:57:18,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:57:18,663 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:57:18,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:57:18,663 INFO L85 PathProgramCache]: Analyzing trace with hash 1342075687, now seen corresponding path program 1 times [2022-11-16 12:57:18,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:57:18,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1714427617] [2022-11-16 12:57:18,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:57:18,665 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 [2022-11-16 12:57:18,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:57:18,666 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 12:57:18,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:57:20,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:57:21,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 2128 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 12:57:21,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:57:21,175 INFO L134 CoverageAnalysis]: Checked inductivity of 634 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 606 trivial. 0 not checked. [2022-11-16 12:57:21,175 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:57:21,175 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:57:21,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1714427617] [2022-11-16 12:57:21,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1714427617] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:57:21,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:57:21,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:57:21,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775928716] [2022-11-16 12:57:21,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:57:21,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:57:21,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:57:21,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:57:21,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:57:21,178 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) [2022-11-16 12:57:22,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:57:22,810 INFO L93 Difference]: Finished difference Result 22588 states and 30405 transitions. [2022-11-16 12:57:22,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:57:22,811 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 [2022-11-16 12:57:22,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:57:22,852 INFO L225 Difference]: With dead ends: 22588 [2022-11-16 12:57:22,852 INFO L226 Difference]: Without dead ends: 12173 [2022-11-16 12:57:22,876 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 [2022-11-16 12:57:22,877 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 [2022-11-16 12:57:22,877 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] [2022-11-16 12:57:22,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12173 states. [2022-11-16 12:57:24,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12173 to 10487. [2022-11-16 12:57:24,355 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) [2022-11-16 12:57:24,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10487 states to 10487 states and 13978 transitions. [2022-11-16 12:57:24,377 INFO L78 Accepts]: Start accepts. Automaton has 10487 states and 13978 transitions. Word has length 349 [2022-11-16 12:57:24,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:57:24,378 INFO L495 AbstractCegarLoop]: Abstraction has 10487 states and 13978 transitions. [2022-11-16 12:57:24,378 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) [2022-11-16 12:57:24,378 INFO L276 IsEmpty]: Start isEmpty. Operand 10487 states and 13978 transitions. [2022-11-16 12:57:24,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2022-11-16 12:57:24,387 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:57:24,387 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] [2022-11-16 12:57:24,416 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:57:24,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:57:24,588 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:57:24,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:57:24,588 INFO L85 PathProgramCache]: Analyzing trace with hash 127916346, now seen corresponding path program 1 times [2022-11-16 12:57:24,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:57:24,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [743880486] [2022-11-16 12:57:24,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:57:24,590 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 [2022-11-16 12:57:24,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:57:24,591 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 12:57:24,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:57:27,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:57:27,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 2344 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 12:57:27,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:57:27,665 INFO L134 CoverageAnalysis]: Checked inductivity of 534 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 516 trivial. 0 not checked. [2022-11-16 12:57:27,665 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:57:27,665 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:57:27,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [743880486] [2022-11-16 12:57:27,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [743880486] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:57:27,665 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:57:27,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:57:27,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490772158] [2022-11-16 12:57:27,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:57:27,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:57:27,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:57:27,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:57:27,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:57:27,667 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) [2022-11-16 12:57:29,378 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:57:32,242 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:57:32,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:57:32,783 INFO L93 Difference]: Finished difference Result 20978 states and 27992 transitions. [2022-11-16 12:57:32,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:57:32,784 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 [2022-11-16 12:57:32,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:57:32,807 INFO L225 Difference]: With dead ends: 20978 [2022-11-16 12:57:32,807 INFO L226 Difference]: Without dead ends: 10559 [2022-11-16 12:57:32,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 330 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:57:32,823 INFO L413 NwaCegarLoop]: 2098 mSDtfsCounter, 35 mSDsluCounter, 8319 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s 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, 4.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:57:32,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 10417 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-11-16 12:57:32,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10559 states. [2022-11-16 12:57:33,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10559 to 10559. [2022-11-16 12:57:33,828 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) [2022-11-16 12:57:33,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10559 states to 10559 states and 14062 transitions. [2022-11-16 12:57:33,853 INFO L78 Accepts]: Start accepts. Automaton has 10559 states and 14062 transitions. Word has length 335 [2022-11-16 12:57:33,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:57:33,853 INFO L495 AbstractCegarLoop]: Abstraction has 10559 states and 14062 transitions. [2022-11-16 12:57:33,853 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) [2022-11-16 12:57:33,853 INFO L276 IsEmpty]: Start isEmpty. Operand 10559 states and 14062 transitions. [2022-11-16 12:57:33,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2022-11-16 12:57:33,862 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:57:33,862 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] [2022-11-16 12:57:33,897 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:57:34,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:57:34,063 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:57:34,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:57:34,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1467988540, now seen corresponding path program 2 times [2022-11-16 12:57:34,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:57:34,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2026742248] [2022-11-16 12:57:34,065 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:57:34,065 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 [2022-11-16 12:57:34,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:57:34,066 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 12:57:34,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:57:35,369 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 12:57:35,370 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:57:35,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 990 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 12:57:35,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:57:35,479 INFO L134 CoverageAnalysis]: Checked inductivity of 649 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2022-11-16 12:57:35,479 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:57:35,480 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:57:35,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2026742248] [2022-11-16 12:57:35,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2026742248] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:57:35,480 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:57:35,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:57:35,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798134750] [2022-11-16 12:57:35,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:57:35,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:57:35,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:57:35,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:57:35,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:57:35,482 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) [2022-11-16 12:57:36,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:57:36,451 INFO L93 Difference]: Finished difference Result 10976 states and 14656 transitions. [2022-11-16 12:57:36,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:57:36,451 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 [2022-11-16 12:57:36,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:57:36,477 INFO L225 Difference]: With dead ends: 10976 [2022-11-16 12:57:36,477 INFO L226 Difference]: Without dead ends: 10973 [2022-11-16 12:57:36,483 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 [2022-11-16 12:57:36,483 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, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:57:36,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 8531 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:57:36,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10973 states. [2022-11-16 12:57:37,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10973 to 10595. [2022-11-16 12:57:37,498 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) [2022-11-16 12:57:37,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10595 states to 10595 states and 14089 transitions. [2022-11-16 12:57:37,522 INFO L78 Accepts]: Start accepts. Automaton has 10595 states and 14089 transitions. Word has length 356 [2022-11-16 12:57:37,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:57:37,523 INFO L495 AbstractCegarLoop]: Abstraction has 10595 states and 14089 transitions. [2022-11-16 12:57:37,523 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) [2022-11-16 12:57:37,523 INFO L276 IsEmpty]: Start isEmpty. Operand 10595 states and 14089 transitions. [2022-11-16 12:57:37,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2022-11-16 12:57:37,538 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:57:37,539 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] [2022-11-16 12:57:37,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:57:37,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:57:37,739 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:57:37,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:57:37,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1058279810, now seen corresponding path program 1 times [2022-11-16 12:57:37,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:57:37,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [514992706] [2022-11-16 12:57:37,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:57:37,741 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 [2022-11-16 12:57:37,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:57:37,743 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 12:57:37,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:57:40,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:57:40,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 2249 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 12:57:40,491 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:57:40,732 INFO L134 CoverageAnalysis]: Checked inductivity of 674 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 585 trivial. 0 not checked. [2022-11-16 12:57:40,733 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:57:40,733 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:57:40,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [514992706] [2022-11-16 12:57:40,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [514992706] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:57:40,734 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:57:40,734 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:57:40,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026533045] [2022-11-16 12:57:40,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:57:40,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:57:40,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:57:40,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:57:40,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:57:40,736 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) [2022-11-16 12:57:43,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:57:43,222 INFO L93 Difference]: Finished difference Result 25829 states and 34372 transitions. [2022-11-16 12:57:43,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:57:43,222 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 [2022-11-16 12:57:43,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:57:43,261 INFO L225 Difference]: With dead ends: 25829 [2022-11-16 12:57:43,261 INFO L226 Difference]: Without dead ends: 15302 [2022-11-16 12:57:43,282 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 [2022-11-16 12:57:43,282 INFO L413 NwaCegarLoop]: 3300 mSDtfsCounter, 1454 mSDsluCounter, 1963 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s 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, 1.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:57:43,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1454 Valid, 5263 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-16 12:57:43,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15302 states. [2022-11-16 12:57:44,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15302 to 15231. [2022-11-16 12:57:44,548 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) [2022-11-16 12:57:44,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15231 states to 15231 states and 20115 transitions. [2022-11-16 12:57:44,583 INFO L78 Accepts]: Start accepts. Automaton has 15231 states and 20115 transitions. Word has length 382 [2022-11-16 12:57:44,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:57:44,584 INFO L495 AbstractCegarLoop]: Abstraction has 15231 states and 20115 transitions. [2022-11-16 12:57:44,584 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) [2022-11-16 12:57:44,584 INFO L276 IsEmpty]: Start isEmpty. Operand 15231 states and 20115 transitions. [2022-11-16 12:57:44,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2022-11-16 12:57:44,612 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:57:44,613 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] [2022-11-16 12:57:44,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:57:44,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:57:44,835 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:57:44,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:57:44,836 INFO L85 PathProgramCache]: Analyzing trace with hash -621940314, now seen corresponding path program 1 times [2022-11-16 12:57:44,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:57:44,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [543765120] [2022-11-16 12:57:44,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:57:44,839 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 [2022-11-16 12:57:44,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:57:44,840 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 12:57:44,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:57:47,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:57:47,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 2285 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-16 12:57:47,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:57:48,482 INFO L134 CoverageAnalysis]: Checked inductivity of 688 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 672 trivial. 0 not checked. [2022-11-16 12:57:48,482 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:57:48,482 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:57:48,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [543765120] [2022-11-16 12:57:48,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [543765120] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:57:48,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:57:48,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:57:48,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764370318] [2022-11-16 12:57:48,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:57:48,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 12:57:48,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:57:48,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 12:57:48,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:57:48,485 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) [2022-11-16 12:57:52,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:57:52,253 INFO L93 Difference]: Finished difference Result 31279 states and 41494 transitions. [2022-11-16 12:57:52,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 12:57:52,254 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 [2022-11-16 12:57:52,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:57:52,294 INFO L225 Difference]: With dead ends: 31279 [2022-11-16 12:57:52,294 INFO L226 Difference]: Without dead ends: 16116 [2022-11-16 12:57:52,323 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 405 GetRequests, 390 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2022-11-16 12:57:52,324 INFO L413 NwaCegarLoop]: 2110 mSDtfsCounter, 132 mSDsluCounter, 20914 mSDsCounter, 0 mSdLazyCounter, 598 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s 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, 2.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:57:52,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 23024 Invalid, 637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 598 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-16 12:57:52,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16116 states. [2022-11-16 12:57:53,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16116 to 15375. [2022-11-16 12:57:53,879 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) [2022-11-16 12:57:53,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15375 states to 15375 states and 20304 transitions. [2022-11-16 12:57:53,929 INFO L78 Accepts]: Start accepts. Automaton has 15375 states and 20304 transitions. Word has length 401 [2022-11-16 12:57:53,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:57:53,929 INFO L495 AbstractCegarLoop]: Abstraction has 15375 states and 20304 transitions. [2022-11-16 12:57:53,930 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) [2022-11-16 12:57:53,930 INFO L276 IsEmpty]: Start isEmpty. Operand 15375 states and 20304 transitions. [2022-11-16 12:57:53,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2022-11-16 12:57:53,944 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:57:53,945 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] [2022-11-16 12:57:53,978 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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)] Ended with exit code 0 [2022-11-16 12:57:54,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:57:54,145 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:57:54,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:57:54,146 INFO L85 PathProgramCache]: Analyzing trace with hash -572603908, now seen corresponding path program 1 times [2022-11-16 12:57:54,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:57:54,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [334112323] [2022-11-16 12:57:54,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:57:54,148 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 [2022-11-16 12:57:54,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:57:54,149 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 12:57:54,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:57:57,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:57:57,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 2655 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-16 12:57:57,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:57:57,714 INFO L134 CoverageAnalysis]: Checked inductivity of 642 backedges. 43 proven. 34 refuted. 0 times theorem prover too weak. 565 trivial. 0 not checked. [2022-11-16 12:57:57,714 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:57:58,176 INFO L134 CoverageAnalysis]: Checked inductivity of 642 backedges. 2 proven. 34 refuted. 0 times theorem prover too weak. 606 trivial. 0 not checked. [2022-11-16 12:57:58,176 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:57:58,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [334112323] [2022-11-16 12:57:58,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [334112323] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:57:58,177 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:57:58,177 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-11-16 12:57:58,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845612346] [2022-11-16 12:57:58,178 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:57:58,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 12:57:58,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:57:58,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 12:57:58,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:57:58,180 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) [2022-11-16 12:58:01,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:58:01,210 INFO L93 Difference]: Finished difference Result 31642 states and 41770 transitions. [2022-11-16 12:58:01,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 12:58:01,211 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 [2022-11-16 12:58:01,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:58:01,257 INFO L225 Difference]: With dead ends: 31642 [2022-11-16 12:58:01,257 INFO L226 Difference]: Without dead ends: 16335 [2022-11-16 12:58:01,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 822 GetRequests, 812 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:58:01,287 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 [2022-11-16 12:58:01,287 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] [2022-11-16 12:58:01,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16335 states. [2022-11-16 12:58:02,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16335 to 15495. [2022-11-16 12:58:02,694 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) [2022-11-16 12:58:02,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15495 states to 15495 states and 20496 transitions. [2022-11-16 12:58:02,731 INFO L78 Accepts]: Start accepts. Automaton has 15495 states and 20496 transitions. Word has length 412 [2022-11-16 12:58:02,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:58:02,732 INFO L495 AbstractCegarLoop]: Abstraction has 15495 states and 20496 transitions. [2022-11-16 12:58:02,732 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) [2022-11-16 12:58:02,732 INFO L276 IsEmpty]: Start isEmpty. Operand 15495 states and 20496 transitions. [2022-11-16 12:58:02,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2022-11-16 12:58:02,748 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:58:02,748 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] [2022-11-16 12:58:02,787 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:58:02,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:58:02,949 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:58:02,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:58:02,949 INFO L85 PathProgramCache]: Analyzing trace with hash -346609970, now seen corresponding path program 1 times [2022-11-16 12:58:02,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:58:02,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2037039690] [2022-11-16 12:58:02,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:58:02,951 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 [2022-11-16 12:58:02,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:58:02,952 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 12:58:02,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:58:06,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:58:06,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 2377 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 12:58:06,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:58:06,258 INFO L134 CoverageAnalysis]: Checked inductivity of 777 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 775 trivial. 0 not checked. [2022-11-16 12:58:06,258 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:58:06,258 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:58:06,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2037039690] [2022-11-16 12:58:06,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2037039690] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:58:06,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:58:06,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:58:06,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257882959] [2022-11-16 12:58:06,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:58:06,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:58:06,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:58:06,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:58:06,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:58:06,260 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) [2022-11-16 12:58:07,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:58:07,543 INFO L93 Difference]: Finished difference Result 16378 states and 21764 transitions. [2022-11-16 12:58:07,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:58:07,543 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 [2022-11-16 12:58:07,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:58:07,578 INFO L225 Difference]: With dead ends: 16378 [2022-11-16 12:58:07,578 INFO L226 Difference]: Without dead ends: 16375 [2022-11-16 12:58:07,584 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 [2022-11-16 12:58:07,584 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, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:58:07,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 8630 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:58:07,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16375 states. [2022-11-16 12:58:08,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16375 to 15543. [2022-11-16 12:58:08,913 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) [2022-11-16 12:58:08,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15543 states to 15543 states and 20531 transitions. [2022-11-16 12:58:08,946 INFO L78 Accepts]: Start accepts. Automaton has 15543 states and 20531 transitions. Word has length 427 [2022-11-16 12:58:08,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:58:08,946 INFO L495 AbstractCegarLoop]: Abstraction has 15543 states and 20531 transitions. [2022-11-16 12:58:08,947 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) [2022-11-16 12:58:08,947 INFO L276 IsEmpty]: Start isEmpty. Operand 15543 states and 20531 transitions. [2022-11-16 12:58:08,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2022-11-16 12:58:08,963 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:58:08,963 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] [2022-11-16 12:58:08,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:58:09,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:58:09,164 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:58:09,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:58:09,165 INFO L85 PathProgramCache]: Analyzing trace with hash 43660553, now seen corresponding path program 1 times [2022-11-16 12:58:09,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:58:09,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [873121823] [2022-11-16 12:58:09,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:58:09,167 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 [2022-11-16 12:58:09,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:58:09,168 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 12:58:09,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:58:12,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:58:12,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 3045 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 12:58:12,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:58:12,859 INFO L134 CoverageAnalysis]: Checked inductivity of 1131 backedges. 383 proven. 0 refuted. 0 times theorem prover too weak. 748 trivial. 0 not checked. [2022-11-16 12:58:12,859 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:58:12,860 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:58:12,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [873121823] [2022-11-16 12:58:12,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [873121823] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:58:12,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:58:12,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:58:12,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806844194] [2022-11-16 12:58:12,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:58:12,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:58:12,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:58:12,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:58:12,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:58:12,867 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) [2022-11-16 12:58:15,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:58:15,754 INFO L93 Difference]: Finished difference Result 31546 states and 41798 transitions. [2022-11-16 12:58:15,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 12:58:15,758 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 [2022-11-16 12:58:15,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:58:15,805 INFO L225 Difference]: With dead ends: 31546 [2022-11-16 12:58:15,805 INFO L226 Difference]: Without dead ends: 16071 [2022-11-16 12:58:15,831 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 [2022-11-16 12:58:15,832 INFO L413 NwaCegarLoop]: 2179 mSDtfsCounter, 331 mSDsluCounter, 3792 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s 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, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 12:58:15,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 5971 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 12:58:15,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16071 states. [2022-11-16 12:58:17,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16071 to 15543. [2022-11-16 12:58:17,217 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) [2022-11-16 12:58:17,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15543 states to 15543 states and 20519 transitions. [2022-11-16 12:58:17,253 INFO L78 Accepts]: Start accepts. Automaton has 15543 states and 20519 transitions. Word has length 429 [2022-11-16 12:58:17,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:58:17,254 INFO L495 AbstractCegarLoop]: Abstraction has 15543 states and 20519 transitions. [2022-11-16 12:58:17,254 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) [2022-11-16 12:58:17,254 INFO L276 IsEmpty]: Start isEmpty. Operand 15543 states and 20519 transitions. [2022-11-16 12:58:17,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 441 [2022-11-16 12:58:17,271 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:58:17,271 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] [2022-11-16 12:58:17,319 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:58:17,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:58:17,472 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:58:17,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:58:17,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1823783452, now seen corresponding path program 1 times [2022-11-16 12:58:17,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:58:17,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1993784632] [2022-11-16 12:58:17,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:58:17,475 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 [2022-11-16 12:58:17,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:58:17,475 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 12:58:17,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:58:21,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:58:21,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 3095 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 12:58:21,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:58:21,654 INFO L134 CoverageAnalysis]: Checked inductivity of 1134 backedges. 386 proven. 0 refuted. 0 times theorem prover too weak. 748 trivial. 0 not checked. [2022-11-16 12:58:21,655 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:58:21,655 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:58:21,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1993784632] [2022-11-16 12:58:21,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1993784632] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:58:21,655 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:58:21,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:58:21,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537889471] [2022-11-16 12:58:21,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:58:21,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:58:21,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:58:21,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:58:21,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:58:21,657 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) [2022-11-16 12:58:23,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:58:23,074 INFO L93 Difference]: Finished difference Result 31018 states and 40994 transitions. [2022-11-16 12:58:23,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 12:58:23,074 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 [2022-11-16 12:58:23,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:58:23,108 INFO L225 Difference]: With dead ends: 31018 [2022-11-16 12:58:23,108 INFO L226 Difference]: Without dead ends: 15543 [2022-11-16 12:58:23,131 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 [2022-11-16 12:58:23,131 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 [2022-11-16 12:58:23,131 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] [2022-11-16 12:58:23,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15543 states. [2022-11-16 12:58:24,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15543 to 15543. [2022-11-16 12:58:24,466 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) [2022-11-16 12:58:24,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15543 states to 15543 states and 20507 transitions. [2022-11-16 12:58:24,503 INFO L78 Accepts]: Start accepts. Automaton has 15543 states and 20507 transitions. Word has length 440 [2022-11-16 12:58:24,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:58:24,504 INFO L495 AbstractCegarLoop]: Abstraction has 15543 states and 20507 transitions. [2022-11-16 12:58:24,504 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) [2022-11-16 12:58:24,504 INFO L276 IsEmpty]: Start isEmpty. Operand 15543 states and 20507 transitions. [2022-11-16 12:58:24,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2022-11-16 12:58:24,521 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:58:24,522 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] [2022-11-16 12:58:24,575 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:58:24,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:58:24,723 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:58:24,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:58:24,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1765026409, now seen corresponding path program 1 times [2022-11-16 12:58:24,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:58:24,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1219338990] [2022-11-16 12:58:24,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:58:24,725 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 [2022-11-16 12:58:24,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:58:24,726 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 12:58:24,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:58:28,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:58:28,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 3115 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 12:58:28,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:58:29,058 INFO L134 CoverageAnalysis]: Checked inductivity of 1142 backedges. 390 proven. 0 refuted. 0 times theorem prover too weak. 752 trivial. 0 not checked. [2022-11-16 12:58:29,058 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:58:29,058 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:58:29,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1219338990] [2022-11-16 12:58:29,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1219338990] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:58:29,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:58:29,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:58:29,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016777014] [2022-11-16 12:58:29,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:58:29,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:58:29,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:58:29,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:58:29,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:58:29,061 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) [2022-11-16 12:58:30,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:58:31,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:58:34,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:58:34,035 INFO L93 Difference]: Finished difference Result 31126 states and 41108 transitions. [2022-11-16 12:58:34,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:58:34,036 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 [2022-11-16 12:58:34,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:58:34,078 INFO L225 Difference]: With dead ends: 31126 [2022-11-16 12:58:34,078 INFO L226 Difference]: Without dead ends: 15651 [2022-11-16 12:58:34,113 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 [2022-11-16 12:58:34,113 INFO L413 NwaCegarLoop]: 2102 mSDtfsCounter, 24 mSDsluCounter, 6228 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s 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, 3.3s IncrementalHoareTripleChecker+Time [2022-11-16 12:58:34,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 8330 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-11-16 12:58:34,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15651 states. [2022-11-16 12:58:35,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15651 to 15543. [2022-11-16 12:58:35,494 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) [2022-11-16 12:58:35,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15543 states to 15543 states and 20507 transitions. [2022-11-16 12:58:35,530 INFO L78 Accepts]: Start accepts. Automaton has 15543 states and 20507 transitions. Word has length 447 [2022-11-16 12:58:35,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:58:35,531 INFO L495 AbstractCegarLoop]: Abstraction has 15543 states and 20507 transitions. [2022-11-16 12:58:35,531 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) [2022-11-16 12:58:35,531 INFO L276 IsEmpty]: Start isEmpty. Operand 15543 states and 20507 transitions. [2022-11-16 12:58:35,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 488 [2022-11-16 12:58:35,549 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:58:35,549 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] [2022-11-16 12:58:35,602 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:58:35,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:58:35,750 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:58:35,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:58:35,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1393970700, now seen corresponding path program 1 times [2022-11-16 12:58:35,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:58:35,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1457665290] [2022-11-16 12:58:35,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:58:35,753 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 [2022-11-16 12:58:35,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:58:35,754 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 12:58:35,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:58:39,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:58:40,009 INFO L263 TraceCheckSpWp]: Trace formula consists of 3210 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 12:58:40,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:58:40,088 INFO L134 CoverageAnalysis]: Checked inductivity of 1165 backedges. 393 proven. 0 refuted. 0 times theorem prover too weak. 772 trivial. 0 not checked. [2022-11-16 12:58:40,089 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:58:40,089 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:58:40,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1457665290] [2022-11-16 12:58:40,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1457665290] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:58:40,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:58:40,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:58:40,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593341757] [2022-11-16 12:58:40,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:58:40,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:58:40,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:58:40,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:58:40,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:58:40,091 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) [2022-11-16 12:58:41,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:58:41,700 INFO L93 Difference]: Finished difference Result 21666 states and 28491 transitions. [2022-11-16 12:58:41,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 12:58:41,701 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 [2022-11-16 12:58:41,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:58:41,704 INFO L225 Difference]: With dead ends: 21666 [2022-11-16 12:58:41,704 INFO L226 Difference]: Without dead ends: 0 [2022-11-16 12:58:41,732 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 [2022-11-16 12:58:41,732 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 [2022-11-16 12:58:41,732 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] [2022-11-16 12:58:41,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-16 12:58:41,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-16 12:58:41,733 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) [2022-11-16 12:58:41,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-16 12:58:41,738 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 487 [2022-11-16 12:58:41,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:58:41,738 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 12:58:41,739 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) [2022-11-16 12:58:41,739 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-16 12:58:41,739 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-16 12:58:41,741 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-16 12:58:41,800 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:58:41,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2669ab0-395a-4d88-9049-352ec649b3b2/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:58:41,953 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.