./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-net--sched--sch_cbq.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-net--sched--sch_cbq.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 7e95d09d0a325511d2d23c5463607122c33b5407011c57d58d8c5bc66ca09147 --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 17:52:34,802 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 17:52:34,804 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 17:52:34,846 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 17:52:34,846 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 17:52:34,847 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 17:52:34,848 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 17:52:34,849 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 17:52:34,851 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 17:52:34,851 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 17:52:34,852 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 17:52:34,853 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 17:52:34,853 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 17:52:34,854 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 17:52:34,855 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 17:52:34,856 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 17:52:34,856 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 17:52:34,857 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 17:52:34,858 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 17:52:34,860 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 17:52:34,862 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 17:52:34,863 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 17:52:34,864 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 17:52:34,864 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 17:52:34,866 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 17:52:34,866 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 17:52:34,867 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 17:52:34,867 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 17:52:34,868 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 17:52:34,868 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 17:52:34,869 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 17:52:34,869 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 17:52:34,870 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 17:52:34,870 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 17:52:34,871 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 17:52:34,871 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 17:52:34,871 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 17:52:34,872 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 17:52:34,872 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 17:52:34,872 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 17:52:34,873 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 17:52:34,874 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-14 17:52:34,901 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 17:52:34,902 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 17:52:34,902 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 17:52:34,902 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 17:52:34,903 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 17:52:34,905 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 17:52:34,905 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 17:52:34,906 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 17:52:34,906 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 17:52:34,906 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 17:52:34,906 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 17:52:34,906 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 17:52:34,906 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 17:52:34,906 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 17:52:34,907 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 17:52:34,907 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 17:52:34,908 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 17:52:34,908 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 17:52:34,908 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 17:52:34,908 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 17:52:34,908 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 17:52:34,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 17:52:34,909 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 17:52:34,909 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 17:52:34,909 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 17:52:34,909 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 17:52:34,909 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 17:52:34,909 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 17:52:34,910 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 17:52:34,910 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 17:52:34,910 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 17:52:34,910 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e95d09d0a325511d2d23c5463607122c33b5407011c57d58d8c5bc66ca09147 [2021-12-14 17:52:35,110 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 17:52:35,128 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 17:52:35,132 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 17:52:35,133 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 17:52:35,133 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 17:52:35,134 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-net--sched--sch_cbq.ko-entry_point.cil.out.i [2021-12-14 17:52:35,189 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9979074c/df5df60cbe394426a801e092a2e50271/FLAGa3cac877d [2021-12-14 17:52:35,822 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 17:52:35,824 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-net--sched--sch_cbq.ko-entry_point.cil.out.i [2021-12-14 17:52:35,878 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9979074c/df5df60cbe394426a801e092a2e50271/FLAGa3cac877d [2021-12-14 17:52:35,939 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9979074c/df5df60cbe394426a801e092a2e50271 [2021-12-14 17:52:35,942 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 17:52:35,945 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 17:52:35,948 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 17:52:35,948 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 17:52:35,951 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 17:52:35,952 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:52:35" (1/1) ... [2021-12-14 17:52:35,954 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@750d0bee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:52:35, skipping insertion in model container [2021-12-14 17:52:35,955 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:52:35" (1/1) ... [2021-12-14 17:52:35,960 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 17:52:36,090 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 17:52:36,490 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5334] [2021-12-14 17:52:36,491 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5335-5336] [2021-12-14 17:52:36,748 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-net--sched--sch_cbq.ko-entry_point.cil.out.i[160045,160058] [2021-12-14 17:52:37,679 WARN L610 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-12-14 17:52:37,686 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 17:52:37,703 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 17:52:37,778 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5334] [2021-12-14 17:52:37,779 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5335-5336] [2021-12-14 17:52:37,784 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-net--sched--sch_cbq.ko-entry_point.cil.out.i[160045,160058] [2021-12-14 17:52:38,005 WARN L610 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-12-14 17:52:38,011 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 17:52:38,055 INFO L208 MainTranslator]: Completed translation [2021-12-14 17:52:38,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:52:38 WrapperNode [2021-12-14 17:52:38,056 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 17:52:38,057 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 17:52:38,057 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 17:52:38,057 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 17:52:38,062 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:52:38" (1/1) ... [2021-12-14 17:52:38,127 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:52:38" (1/1) ... [2021-12-14 17:52:38,224 INFO L137 Inliner]: procedures = 228, calls = 1503, calls flagged for inlining = 97, calls inlined = 94, statements flattened = 3918 [2021-12-14 17:52:38,224 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 17:52:38,225 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 17:52:38,225 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 17:52:38,225 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 17:52:38,231 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:52:38" (1/1) ... [2021-12-14 17:52:38,234 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:52:38" (1/1) ... [2021-12-14 17:52:38,257 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:52:38" (1/1) ... [2021-12-14 17:52:38,257 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:52:38" (1/1) ... [2021-12-14 17:52:38,343 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:52:38" (1/1) ... [2021-12-14 17:52:38,373 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:52:38" (1/1) ... [2021-12-14 17:52:38,403 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:52:38" (1/1) ... [2021-12-14 17:52:38,432 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 17:52:38,434 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 17:52:38,434 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 17:52:38,436 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 17:52:38,437 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:52:38" (1/1) ... [2021-12-14 17:52:38,442 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 17:52:38,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 17:52:38,462 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-14 17:52:38,463 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-14 17:52:38,484 INFO L130 BoogieDeclarations]: Found specification of procedure cbq_reclassify [2021-12-14 17:52:38,485 INFO L138 BoogieDeclarations]: Found implementation of procedure cbq_reclassify [2021-12-14 17:52:38,485 INFO L130 BoogieDeclarations]: Found specification of procedure qdisc_create_dflt [2021-12-14 17:52:38,485 INFO L138 BoogieDeclarations]: Found implementation of procedure qdisc_create_dflt [2021-12-14 17:52:38,485 INFO L130 BoogieDeclarations]: Found specification of procedure cbq_set_police [2021-12-14 17:52:38,485 INFO L138 BoogieDeclarations]: Found implementation of procedure cbq_set_police [2021-12-14 17:52:38,485 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-14 17:52:38,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-14 17:52:38,486 INFO L130 BoogieDeclarations]: Found specification of procedure qdisc_pkt_len [2021-12-14 17:52:38,486 INFO L138 BoogieDeclarations]: Found implementation of procedure qdisc_pkt_len [2021-12-14 17:52:38,486 INFO L130 BoogieDeclarations]: Found specification of procedure cbq_reset [2021-12-14 17:52:38,486 INFO L138 BoogieDeclarations]: Found implementation of procedure cbq_reset [2021-12-14 17:52:38,486 INFO L130 BoogieDeclarations]: Found specification of procedure qdisc_reset [2021-12-14 17:52:38,486 INFO L138 BoogieDeclarations]: Found implementation of procedure qdisc_reset [2021-12-14 17:52:38,486 INFO L130 BoogieDeclarations]: Found specification of procedure nlmsg_trim [2021-12-14 17:52:38,486 INFO L138 BoogieDeclarations]: Found implementation of procedure nlmsg_trim [2021-12-14 17:52:38,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-14 17:52:38,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-14 17:52:38,487 INFO L130 BoogieDeclarations]: Found specification of procedure qdisc_put_rtab [2021-12-14 17:52:38,487 INFO L138 BoogieDeclarations]: Found implementation of procedure qdisc_put_rtab [2021-12-14 17:52:38,492 INFO L130 BoogieDeclarations]: Found specification of procedure cbq_dump_class_stats [2021-12-14 17:52:38,494 INFO L138 BoogieDeclarations]: Found implementation of procedure cbq_dump_class_stats [2021-12-14 17:52:38,494 INFO L130 BoogieDeclarations]: Found specification of procedure nla_nest_cancel [2021-12-14 17:52:38,494 INFO L138 BoogieDeclarations]: Found implementation of procedure nla_nest_cancel [2021-12-14 17:52:38,494 INFO L130 BoogieDeclarations]: Found specification of procedure cbq_ovl_classic [2021-12-14 17:52:38,495 INFO L138 BoogieDeclarations]: Found implementation of procedure cbq_ovl_classic [2021-12-14 17:52:38,495 INFO L130 BoogieDeclarations]: Found specification of procedure cbq_set_overlimit [2021-12-14 17:52:38,495 INFO L138 BoogieDeclarations]: Found implementation of procedure cbq_set_overlimit [2021-12-14 17:52:38,495 INFO L130 BoogieDeclarations]: Found specification of procedure cbq_normalize_quanta [2021-12-14 17:52:38,495 INFO L138 BoogieDeclarations]: Found implementation of procedure cbq_normalize_quanta [2021-12-14 17:52:38,495 INFO L130 BoogieDeclarations]: Found specification of procedure qdisc_enqueue [2021-12-14 17:52:38,496 INFO L138 BoogieDeclarations]: Found implementation of procedure qdisc_enqueue [2021-12-14 17:52:38,496 INFO L130 BoogieDeclarations]: Found specification of procedure cbq_delete [2021-12-14 17:52:38,496 INFO L138 BoogieDeclarations]: Found implementation of procedure cbq_delete [2021-12-14 17:52:38,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-14 17:52:38,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-14 17:52:38,496 INFO L130 BoogieDeclarations]: Found specification of procedure cbq_dump [2021-12-14 17:52:38,496 INFO L138 BoogieDeclarations]: Found implementation of procedure cbq_dump [2021-12-14 17:52:38,497 INFO L130 BoogieDeclarations]: Found specification of procedure sch_tree_unlock [2021-12-14 17:52:38,497 INFO L138 BoogieDeclarations]: Found implementation of procedure sch_tree_unlock [2021-12-14 17:52:38,497 INFO L130 BoogieDeclarations]: Found specification of procedure cbq_link_class [2021-12-14 17:52:38,497 INFO L138 BoogieDeclarations]: Found implementation of procedure cbq_link_class [2021-12-14 17:52:38,497 INFO L130 BoogieDeclarations]: Found specification of procedure nla_nest_start [2021-12-14 17:52:38,497 INFO L138 BoogieDeclarations]: Found implementation of procedure nla_nest_start [2021-12-14 17:52:38,497 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-14 17:52:38,497 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-14 17:52:38,498 INFO L130 BoogieDeclarations]: Found specification of procedure cbq_dump_stats [2021-12-14 17:52:38,498 INFO L138 BoogieDeclarations]: Found implementation of procedure cbq_dump_stats [2021-12-14 17:52:38,498 INFO L130 BoogieDeclarations]: Found specification of procedure gnet_stats_copy_app [2021-12-14 17:52:38,498 INFO L138 BoogieDeclarations]: Found implementation of procedure gnet_stats_copy_app [2021-12-14 17:52:38,498 INFO L130 BoogieDeclarations]: Found specification of procedure qdisc_root_sleeping_lock [2021-12-14 17:52:38,499 INFO L138 BoogieDeclarations]: Found implementation of procedure qdisc_root_sleeping_lock [2021-12-14 17:52:38,499 INFO L130 BoogieDeclarations]: Found specification of procedure cbq_set_lss [2021-12-14 17:52:38,500 INFO L138 BoogieDeclarations]: Found implementation of procedure cbq_set_lss [2021-12-14 17:52:38,500 INFO L130 BoogieDeclarations]: Found specification of procedure cbq_destroy [2021-12-14 17:52:38,500 INFO L138 BoogieDeclarations]: Found implementation of procedure cbq_destroy [2021-12-14 17:52:38,500 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 17:52:38,500 INFO L130 BoogieDeclarations]: Found specification of procedure qdisc_unthrottled [2021-12-14 17:52:38,500 INFO L138 BoogieDeclarations]: Found implementation of procedure qdisc_unthrottled [2021-12-14 17:52:38,501 INFO L130 BoogieDeclarations]: Found specification of procedure cbq_class_lookup [2021-12-14 17:52:38,501 INFO L138 BoogieDeclarations]: Found implementation of procedure cbq_class_lookup [2021-12-14 17:52:38,501 INFO L130 BoogieDeclarations]: Found specification of procedure cbq_dequeue_prio [2021-12-14 17:52:38,501 INFO L138 BoogieDeclarations]: Found implementation of procedure cbq_dequeue_prio [2021-12-14 17:52:38,501 INFO L130 BoogieDeclarations]: Found specification of procedure psched_get_time [2021-12-14 17:52:38,501 INFO L138 BoogieDeclarations]: Found implementation of procedure psched_get_time [2021-12-14 17:52:38,501 INFO L130 BoogieDeclarations]: Found specification of procedure cbq_set_fopt [2021-12-14 17:52:38,501 INFO L138 BoogieDeclarations]: Found implementation of procedure cbq_set_fopt [2021-12-14 17:52:38,501 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-14 17:52:38,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-14 17:52:38,502 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-12-14 17:52:38,502 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-12-14 17:52:38,502 INFO L130 BoogieDeclarations]: Found specification of procedure cbq_dequeue_1 [2021-12-14 17:52:38,502 INFO L138 BoogieDeclarations]: Found implementation of procedure cbq_dequeue_1 [2021-12-14 17:52:38,503 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2021-12-14 17:52:38,503 INFO L130 BoogieDeclarations]: Found specification of procedure cbq_activate_class [2021-12-14 17:52:38,503 INFO L138 BoogieDeclarations]: Found implementation of procedure cbq_activate_class [2021-12-14 17:52:38,503 INFO L130 BoogieDeclarations]: Found specification of procedure nla_nest_end [2021-12-14 17:52:38,503 INFO L138 BoogieDeclarations]: Found implementation of procedure nla_nest_end [2021-12-14 17:52:38,503 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 17:52:38,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-14 17:52:38,503 INFO L130 BoogieDeclarations]: Found specification of procedure tcf_destroy_chain [2021-12-14 17:52:38,503 INFO L138 BoogieDeclarations]: Found implementation of procedure tcf_destroy_chain [2021-12-14 17:52:38,504 INFO L130 BoogieDeclarations]: Found specification of procedure cbq_sync_defmap [2021-12-14 17:52:38,506 INFO L138 BoogieDeclarations]: Found implementation of procedure cbq_sync_defmap [2021-12-14 17:52:38,506 INFO L130 BoogieDeclarations]: Found specification of procedure nla_data [2021-12-14 17:52:38,507 INFO L138 BoogieDeclarations]: Found implementation of procedure nla_data [2021-12-14 17:52:38,507 INFO L130 BoogieDeclarations]: Found specification of procedure cbq_adjust_levels [2021-12-14 17:52:38,507 INFO L138 BoogieDeclarations]: Found implementation of procedure cbq_adjust_levels [2021-12-14 17:52:38,507 INFO L130 BoogieDeclarations]: Found specification of procedure cbq_bind_filter [2021-12-14 17:52:38,508 INFO L138 BoogieDeclarations]: Found implementation of procedure cbq_bind_filter [2021-12-14 17:52:38,508 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2021-12-14 17:52:38,508 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2021-12-14 17:52:38,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-14 17:52:38,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-14 17:52:38,508 INFO L130 BoogieDeclarations]: Found specification of procedure cbq_enqueue [2021-12-14 17:52:38,508 INFO L138 BoogieDeclarations]: Found implementation of procedure cbq_enqueue [2021-12-14 17:52:38,509 INFO L130 BoogieDeclarations]: Found specification of procedure qdisc_peek_dequeued [2021-12-14 17:52:38,509 INFO L138 BoogieDeclarations]: Found implementation of procedure qdisc_peek_dequeued [2021-12-14 17:52:38,509 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 17:52:38,509 INFO L130 BoogieDeclarations]: Found specification of procedure cbq_mark_toplevel [2021-12-14 17:52:38,509 INFO L138 BoogieDeclarations]: Found implementation of procedure cbq_mark_toplevel [2021-12-14 17:52:38,509 INFO L130 BoogieDeclarations]: Found specification of procedure cbq_get [2021-12-14 17:52:38,509 INFO L138 BoogieDeclarations]: Found implementation of procedure cbq_get [2021-12-14 17:52:38,510 INFO L130 BoogieDeclarations]: Found specification of procedure nla_parse_nested [2021-12-14 17:52:38,510 INFO L138 BoogieDeclarations]: Found implementation of procedure nla_parse_nested [2021-12-14 17:52:38,510 INFO L130 BoogieDeclarations]: Found specification of procedure hrtimer_get_expires [2021-12-14 17:52:38,510 INFO L138 BoogieDeclarations]: Found implementation of procedure hrtimer_get_expires [2021-12-14 17:52:38,510 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-14 17:52:38,510 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-14 17:52:38,510 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-14 17:52:38,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-14 17:52:38,511 INFO L130 BoogieDeclarations]: Found specification of procedure cbq_reshape_fail [2021-12-14 17:52:38,511 INFO L138 BoogieDeclarations]: Found implementation of procedure cbq_reshape_fail [2021-12-14 17:52:38,513 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-14 17:52:38,513 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-14 17:52:38,513 INFO L130 BoogieDeclarations]: Found specification of procedure qdisc_root_sleeping [2021-12-14 17:52:38,514 INFO L138 BoogieDeclarations]: Found implementation of procedure qdisc_root_sleeping [2021-12-14 17:52:38,514 INFO L130 BoogieDeclarations]: Found specification of procedure cbq_init [2021-12-14 17:52:38,514 INFO L138 BoogieDeclarations]: Found implementation of procedure cbq_init [2021-12-14 17:52:38,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 17:52:38,514 INFO L130 BoogieDeclarations]: Found specification of procedure cbq_dump_class [2021-12-14 17:52:38,514 INFO L138 BoogieDeclarations]: Found implementation of procedure cbq_dump_class [2021-12-14 17:52:38,514 INFO L130 BoogieDeclarations]: Found specification of procedure sch_tree_lock [2021-12-14 17:52:38,514 INFO L138 BoogieDeclarations]: Found implementation of procedure sch_tree_lock [2021-12-14 17:52:38,515 INFO L130 BoogieDeclarations]: Found specification of procedure cbq_dump_attr [2021-12-14 17:52:38,515 INFO L138 BoogieDeclarations]: Found implementation of procedure cbq_dump_attr [2021-12-14 17:52:38,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-14 17:52:38,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-14 17:52:38,515 INFO L130 BoogieDeclarations]: Found specification of procedure cbq_find_tcf [2021-12-14 17:52:38,515 INFO L138 BoogieDeclarations]: Found implementation of procedure cbq_find_tcf [2021-12-14 17:52:38,515 INFO L130 BoogieDeclarations]: Found specification of procedure cbq_drop [2021-12-14 17:52:38,515 INFO L138 BoogieDeclarations]: Found implementation of procedure cbq_drop [2021-12-14 17:52:38,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-14 17:52:38,515 INFO L130 BoogieDeclarations]: Found specification of procedure cbq_rmprio [2021-12-14 17:52:38,516 INFO L138 BoogieDeclarations]: Found implementation of procedure cbq_rmprio [2021-12-14 17:52:38,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 17:52:38,516 INFO L130 BoogieDeclarations]: Found specification of procedure qdisc_priv [2021-12-14 17:52:38,516 INFO L138 BoogieDeclarations]: Found implementation of procedure qdisc_priv [2021-12-14 17:52:38,516 INFO L130 BoogieDeclarations]: Found specification of procedure cbq_walk [2021-12-14 17:52:38,516 INFO L138 BoogieDeclarations]: Found implementation of procedure cbq_walk [2021-12-14 17:52:38,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-14 17:52:38,516 INFO L130 BoogieDeclarations]: Found specification of procedure qdisc_get_rtab [2021-12-14 17:52:38,516 INFO L138 BoogieDeclarations]: Found implementation of procedure qdisc_get_rtab [2021-12-14 17:52:38,517 INFO L130 BoogieDeclarations]: Found specification of procedure nla_put [2021-12-14 17:52:38,517 INFO L138 BoogieDeclarations]: Found implementation of procedure nla_put [2021-12-14 17:52:38,517 INFO L130 BoogieDeclarations]: Found specification of procedure cbq_addprio [2021-12-14 17:52:38,517 INFO L138 BoogieDeclarations]: Found implementation of procedure cbq_addprio [2021-12-14 17:52:38,517 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-14 17:52:38,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-14 17:52:38,517 INFO L130 BoogieDeclarations]: Found specification of procedure cbq_change_class [2021-12-14 17:52:38,517 INFO L138 BoogieDeclarations]: Found implementation of procedure cbq_change_class [2021-12-14 17:52:38,517 INFO L130 BoogieDeclarations]: Found specification of procedure cbq_deactivate_class [2021-12-14 17:52:38,517 INFO L138 BoogieDeclarations]: Found implementation of procedure cbq_deactivate_class [2021-12-14 17:52:38,518 INFO L130 BoogieDeclarations]: Found specification of procedure qdisc_dev [2021-12-14 17:52:38,518 INFO L138 BoogieDeclarations]: Found implementation of procedure qdisc_dev [2021-12-14 17:52:38,518 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2021-12-14 17:52:38,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2021-12-14 17:52:38,518 INFO L130 BoogieDeclarations]: Found specification of procedure ffz [2021-12-14 17:52:38,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ffz [2021-12-14 17:52:38,518 INFO L130 BoogieDeclarations]: Found specification of procedure cbq_qlen_notify [2021-12-14 17:52:38,518 INFO L138 BoogieDeclarations]: Found implementation of procedure cbq_qlen_notify [2021-12-14 17:52:38,518 INFO L130 BoogieDeclarations]: Found specification of procedure cbq_destroy_class [2021-12-14 17:52:38,519 INFO L138 BoogieDeclarations]: Found implementation of procedure cbq_destroy_class [2021-12-14 17:52:38,519 INFO L130 BoogieDeclarations]: Found specification of procedure qdisc_l2t [2021-12-14 17:52:38,519 INFO L138 BoogieDeclarations]: Found implementation of procedure qdisc_l2t [2021-12-14 17:52:38,519 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-14 17:52:38,519 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-14 17:52:38,519 INFO L130 BoogieDeclarations]: Found specification of procedure cbq_graft [2021-12-14 17:52:38,519 INFO L138 BoogieDeclarations]: Found implementation of procedure cbq_graft [2021-12-14 17:52:38,519 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-14 17:52:38,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-14 17:52:38,519 INFO L130 BoogieDeclarations]: Found specification of procedure cbq_set_wrr [2021-12-14 17:52:38,520 INFO L138 BoogieDeclarations]: Found implementation of procedure cbq_set_wrr [2021-12-14 17:52:38,520 INFO L130 BoogieDeclarations]: Found specification of procedure cbq_dequeue [2021-12-14 17:52:38,520 INFO L138 BoogieDeclarations]: Found implementation of procedure cbq_dequeue [2021-12-14 17:52:38,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 17:52:38,520 INFO L130 BoogieDeclarations]: Found specification of procedure cbq_put [2021-12-14 17:52:38,520 INFO L138 BoogieDeclarations]: Found implementation of procedure cbq_put [2021-12-14 17:52:38,520 INFO L130 BoogieDeclarations]: Found specification of procedure qdisc_tree_decrease_qlen [2021-12-14 17:52:38,520 INFO L138 BoogieDeclarations]: Found implementation of procedure qdisc_tree_decrease_qlen [2021-12-14 17:52:38,520 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2021-12-14 17:52:38,521 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2021-12-14 17:52:38,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 17:52:38,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 17:52:38,521 INFO L130 BoogieDeclarations]: Found specification of procedure cbq_leaf [2021-12-14 17:52:38,521 INFO L138 BoogieDeclarations]: Found implementation of procedure cbq_leaf [2021-12-14 17:52:38,521 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2021-12-14 17:52:38,521 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2021-12-14 17:52:39,029 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 17:52:39,034 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 17:52:39,138 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-14 17:52:46,211 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 17:52:46,236 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 17:52:46,236 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-14 17:52:46,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:52:46 BoogieIcfgContainer [2021-12-14 17:52:46,239 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 17:52:46,247 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 17:52:46,247 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 17:52:46,250 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 17:52:46,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 05:52:35" (1/3) ... [2021-12-14 17:52:46,250 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d6bb147 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:52:46, skipping insertion in model container [2021-12-14 17:52:46,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:52:38" (2/3) ... [2021-12-14 17:52:46,251 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d6bb147 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:52:46, skipping insertion in model container [2021-12-14 17:52:46,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:52:46" (3/3) ... [2021-12-14 17:52:46,252 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-net--sched--sch_cbq.ko-entry_point.cil.out.i [2021-12-14 17:52:46,255 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 17:52:46,256 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 17:52:46,293 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 17:52:46,298 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-14 17:52:46,298 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-14 17:52:46,324 INFO L276 IsEmpty]: Start isEmpty. Operand has 1519 states, 1133 states have (on average 1.380406001765225) internal successors, (1564), 1157 states have internal predecessors, (1564), 298 states have call successors, (298), 87 states have call predecessors, (298), 86 states have return successors, (294), 292 states have call predecessors, (294), 294 states have call successors, (294) [2021-12-14 17:52:46,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-12-14 17:52:46,342 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:52:46,343 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 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] [2021-12-14 17:52:46,344 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:52:46,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:52:46,348 INFO L85 PathProgramCache]: Analyzing trace with hash 854131554, now seen corresponding path program 1 times [2021-12-14 17:52:46,354 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:52:46,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036489744] [2021-12-14 17:52:46,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:52:46,355 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:52:46,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:46,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:52:46,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:46,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-14 17:52:46,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:46,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 17:52:46,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:46,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-14 17:52:46,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:46,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-14 17:52:46,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:46,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 17:52:46,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:46,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-14 17:52:46,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:46,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-14 17:52:46,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:46,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 17:52:46,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:46,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-14 17:52:46,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:46,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-14 17:52:46,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:46,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-14 17:52:46,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:46,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:52:46,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:46,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-14 17:52:46,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:46,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-14 17:52:46,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:46,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:52:46,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:46,857 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2021-12-14 17:52:46,859 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:52:46,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036489744] [2021-12-14 17:52:46,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036489744] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:52:46,860 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:52:46,860 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 17:52:46,862 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398354567] [2021-12-14 17:52:46,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:52:46,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 17:52:46,866 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:52:46,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 17:52:46,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-14 17:52:46,895 INFO L87 Difference]: Start difference. First operand has 1519 states, 1133 states have (on average 1.380406001765225) internal successors, (1564), 1157 states have internal predecessors, (1564), 298 states have call successors, (298), 87 states have call predecessors, (298), 86 states have return successors, (294), 292 states have call predecessors, (294), 294 states have call successors, (294) Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-14 17:52:52,775 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:52:54,884 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:52:55,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:52:55,439 INFO L93 Difference]: Finished difference Result 4630 states and 6747 transitions. [2021-12-14 17:52:55,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 17:52:55,442 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 137 [2021-12-14 17:52:55,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:52:55,492 INFO L225 Difference]: With dead ends: 4630 [2021-12-14 17:52:55,493 INFO L226 Difference]: Without dead ends: 3090 [2021-12-14 17:52:55,506 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-12-14 17:52:55,511 INFO L933 BasicCegarLoop]: 2209 mSDtfsCounter, 3573 mSDsluCounter, 2462 mSDsCounter, 0 mSdLazyCounter, 2164 mSolverCounterSat, 1520 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3791 SdHoareTripleChecker+Valid, 4671 SdHoareTripleChecker+Invalid, 3686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1520 IncrementalHoareTripleChecker+Valid, 2164 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2021-12-14 17:52:55,512 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3791 Valid, 4671 Invalid, 3686 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1520 Valid, 2164 Invalid, 2 Unknown, 0 Unchecked, 8.1s Time] [2021-12-14 17:52:55,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3090 states. [2021-12-14 17:52:55,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3090 to 2424. [2021-12-14 17:52:55,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2424 states, 1825 states have (on average 1.3726027397260274) internal successors, (2505), 1853 states have internal predecessors, (2505), 454 states have call successors, (454), 145 states have call predecessors, (454), 144 states have return successors, (453), 449 states have call predecessors, (453), 453 states have call successors, (453) [2021-12-14 17:52:55,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2424 states to 2424 states and 3412 transitions. [2021-12-14 17:52:55,720 INFO L78 Accepts]: Start accepts. Automaton has 2424 states and 3412 transitions. Word has length 137 [2021-12-14 17:52:55,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:52:55,721 INFO L470 AbstractCegarLoop]: Abstraction has 2424 states and 3412 transitions. [2021-12-14 17:52:55,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-14 17:52:55,721 INFO L276 IsEmpty]: Start isEmpty. Operand 2424 states and 3412 transitions. [2021-12-14 17:52:55,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2021-12-14 17:52:55,739 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:52:55,739 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 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] [2021-12-14 17:52:55,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 17:52:55,740 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:52:55,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:52:55,740 INFO L85 PathProgramCache]: Analyzing trace with hash -387803060, now seen corresponding path program 1 times [2021-12-14 17:52:55,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:52:55,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669953119] [2021-12-14 17:52:55,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:52:55,744 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:52:55,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:55,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:52:55,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:55,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-14 17:52:55,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:55,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 17:52:55,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:55,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-14 17:52:55,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:55,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-14 17:52:55,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:55,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 17:52:55,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:55,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-14 17:52:55,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:55,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-14 17:52:55,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:55,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 17:52:55,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:55,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-14 17:52:55,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:55,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-14 17:52:55,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:56,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 17:52:56,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:56,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-14 17:52:56,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:56,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-14 17:52:56,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:56,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-14 17:52:56,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:56,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:52:56,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:56,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-14 17:52:56,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:56,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-14 17:52:56,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:56,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:52:56,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:56,075 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2021-12-14 17:52:56,075 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:52:56,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669953119] [2021-12-14 17:52:56,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669953119] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:52:56,076 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:52:56,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 17:52:56,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602015867] [2021-12-14 17:52:56,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:52:56,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 17:52:56,079 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:52:56,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 17:52:56,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-14 17:52:56,079 INFO L87 Difference]: Start difference. First operand 2424 states and 3412 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-12-14 17:53:01,149 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:53:03,261 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:53:06,254 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:53:08,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:53:08,982 INFO L93 Difference]: Finished difference Result 7288 states and 10490 transitions. [2021-12-14 17:53:08,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 17:53:08,982 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 169 [2021-12-14 17:53:08,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:53:09,011 INFO L225 Difference]: With dead ends: 7288 [2021-12-14 17:53:09,011 INFO L226 Difference]: Without dead ends: 4894 [2021-12-14 17:53:09,021 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-12-14 17:53:09,023 INFO L933 BasicCegarLoop]: 3571 mSDtfsCounter, 3150 mSDsluCounter, 4374 mSDsCounter, 0 mSdLazyCounter, 3548 mSolverCounterSat, 1009 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3427 SdHoareTripleChecker+Valid, 7945 SdHoareTripleChecker+Invalid, 4560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1009 IncrementalHoareTripleChecker+Valid, 3548 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2021-12-14 17:53:09,023 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3427 Valid, 7945 Invalid, 4560 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1009 Valid, 3548 Invalid, 3 Unknown, 0 Unchecked, 12.5s Time] [2021-12-14 17:53:09,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4894 states. [2021-12-14 17:53:09,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4894 to 3854. [2021-12-14 17:53:09,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3854 states, 2914 states have (on average 1.3709677419354838) internal successors, (3995), 2962 states have internal predecessors, (3995), 710 states have call successors, (710), 229 states have call predecessors, (710), 229 states have return successors, (713), 702 states have call predecessors, (713), 709 states have call successors, (713) [2021-12-14 17:53:09,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3854 states to 3854 states and 5418 transitions. [2021-12-14 17:53:09,198 INFO L78 Accepts]: Start accepts. Automaton has 3854 states and 5418 transitions. Word has length 169 [2021-12-14 17:53:09,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:53:09,199 INFO L470 AbstractCegarLoop]: Abstraction has 3854 states and 5418 transitions. [2021-12-14 17:53:09,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-12-14 17:53:09,200 INFO L276 IsEmpty]: Start isEmpty. Operand 3854 states and 5418 transitions. [2021-12-14 17:53:09,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-12-14 17:53:09,213 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:53:09,213 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 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] [2021-12-14 17:53:09,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-14 17:53:09,213 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:53:09,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:53:09,219 INFO L85 PathProgramCache]: Analyzing trace with hash 605319217, now seen corresponding path program 1 times [2021-12-14 17:53:09,219 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:53:09,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127453580] [2021-12-14 17:53:09,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:53:09,219 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:53:09,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:53:09,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:53:09,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:53:09,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-14 17:53:09,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:53:09,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 17:53:09,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:53:09,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-14 17:53:09,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:53:09,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-14 17:53:09,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:53:09,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 17:53:09,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:53:09,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-14 17:53:09,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:53:09,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-14 17:53:09,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:53:09,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 17:53:09,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:53:09,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-14 17:53:09,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:53:09,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-14 17:53:09,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:53:09,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 17:53:09,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:53:09,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-14 17:53:09,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:53:09,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-14 17:53:09,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:53:09,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-14 17:53:09,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:53:09,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:53:09,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:53:09,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-14 17:53:09,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:53:09,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-14 17:53:09,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:53:09,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:53:09,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:53:09,426 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2021-12-14 17:53:09,426 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:53:09,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127453580] [2021-12-14 17:53:09,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127453580] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:53:09,426 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:53:09,426 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 17:53:09,427 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995468050] [2021-12-14 17:53:09,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:53:09,427 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 17:53:09,427 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:53:09,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 17:53:09,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-14 17:53:09,428 INFO L87 Difference]: Start difference. First operand 3854 states and 5418 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-14 17:53:13,041 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:53:14,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:53:14,391 INFO L93 Difference]: Finished difference Result 8716 states and 12472 transitions. [2021-12-14 17:53:14,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 17:53:14,392 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (22), 4 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 168 [2021-12-14 17:53:14,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:53:14,418 INFO L225 Difference]: With dead ends: 8716 [2021-12-14 17:53:14,418 INFO L226 Difference]: Without dead ends: 4892 [2021-12-14 17:53:14,432 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-14 17:53:14,436 INFO L933 BasicCegarLoop]: 2034 mSDtfsCounter, 1391 mSDsluCounter, 2547 mSDsCounter, 0 mSdLazyCounter, 1794 mSolverCounterSat, 798 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1500 SdHoareTripleChecker+Valid, 4581 SdHoareTripleChecker+Invalid, 2593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 798 IncrementalHoareTripleChecker+Valid, 1794 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2021-12-14 17:53:14,437 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1500 Valid, 4581 Invalid, 2593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [798 Valid, 1794 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2021-12-14 17:53:14,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4892 states. [2021-12-14 17:53:14,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4892 to 3856. [2021-12-14 17:53:14,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3856 states, 2916 states have (on average 1.370713305898491) internal successors, (3997), 2964 states have internal predecessors, (3997), 710 states have call successors, (710), 229 states have call predecessors, (710), 229 states have return successors, (713), 702 states have call predecessors, (713), 709 states have call successors, (713) [2021-12-14 17:53:14,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3856 states to 3856 states and 5420 transitions. [2021-12-14 17:53:14,565 INFO L78 Accepts]: Start accepts. Automaton has 3856 states and 5420 transitions. Word has length 168 [2021-12-14 17:53:14,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:53:14,566 INFO L470 AbstractCegarLoop]: Abstraction has 3856 states and 5420 transitions. [2021-12-14 17:53:14,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-14 17:53:14,566 INFO L276 IsEmpty]: Start isEmpty. Operand 3856 states and 5420 transitions. [2021-12-14 17:53:14,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-12-14 17:53:14,576 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:53:14,577 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 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] [2021-12-14 17:53:14,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-14 17:53:14,577 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:53:14,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:53:14,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1306919091, now seen corresponding path program 1 times [2021-12-14 17:53:14,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:53:14,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884666546] [2021-12-14 17:53:14,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:53:14,580 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:53:14,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:53:14,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:53:14,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:53:14,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-14 17:53:14,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:53:14,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 17:53:14,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:53:14,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-14 17:53:14,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:53:14,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-14 17:53:14,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:53:14,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 17:53:14,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:53:14,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-14 17:53:14,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:53:14,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-14 17:53:14,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:53:14,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 17:53:14,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:53:14,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-14 17:53:14,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:53:14,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-14 17:53:14,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:53:14,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 17:53:14,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:53:14,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-14 17:53:14,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:53:14,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-14 17:53:14,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:53:14,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-14 17:53:14,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:53:14,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:53:14,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:53:14,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-14 17:53:14,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:53:14,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-14 17:53:14,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:53:14,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:53:14,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:53:14,812 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2021-12-14 17:53:14,812 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:53:14,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884666546] [2021-12-14 17:53:14,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884666546] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:53:14,812 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:53:14,813 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 17:53:14,813 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942033089] [2021-12-14 17:53:14,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:53:14,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 17:53:14,813 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:53:14,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 17:53:14,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-14 17:53:14,814 INFO L87 Difference]: Start difference. First operand 3856 states and 5420 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2021-12-14 17:53:18,880 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:53:20,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:53:20,593 INFO L93 Difference]: Finished difference Result 8866 states and 12706 transitions. [2021-12-14 17:53:20,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 17:53:20,594 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 168 [2021-12-14 17:53:20,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:53:20,614 INFO L225 Difference]: With dead ends: 8866 [2021-12-14 17:53:20,614 INFO L226 Difference]: Without dead ends: 5040 [2021-12-14 17:53:20,625 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-14 17:53:20,628 INFO L933 BasicCegarLoop]: 2131 mSDtfsCounter, 1015 mSDsluCounter, 3280 mSDsCounter, 0 mSdLazyCounter, 2288 mSolverCounterSat, 416 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1147 SdHoareTripleChecker+Valid, 5411 SdHoareTripleChecker+Invalid, 2705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 416 IncrementalHoareTripleChecker+Valid, 2288 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2021-12-14 17:53:20,629 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1147 Valid, 5411 Invalid, 2705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [416 Valid, 2288 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2021-12-14 17:53:20,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5040 states. [2021-12-14 17:53:20,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5040 to 3874. [2021-12-14 17:53:20,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3874 states, 2932 states have (on average 1.3700545702592086) internal successors, (4017), 2980 states have internal predecessors, (4017), 712 states have call successors, (712), 229 states have call predecessors, (712), 229 states have return successors, (715), 704 states have call predecessors, (715), 711 states have call successors, (715) [2021-12-14 17:53:20,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3874 states to 3874 states and 5444 transitions. [2021-12-14 17:53:20,777 INFO L78 Accepts]: Start accepts. Automaton has 3874 states and 5444 transitions. Word has length 168 [2021-12-14 17:53:20,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:53:20,778 INFO L470 AbstractCegarLoop]: Abstraction has 3874 states and 5444 transitions. [2021-12-14 17:53:20,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2021-12-14 17:53:20,779 INFO L276 IsEmpty]: Start isEmpty. Operand 3874 states and 5444 transitions. [2021-12-14 17:53:20,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2021-12-14 17:53:20,791 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:53:20,791 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 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] [2021-12-14 17:53:20,791 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-14 17:53:20,791 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:53:20,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:53:20,792 INFO L85 PathProgramCache]: Analyzing trace with hash 879702809, now seen corresponding path program 1 times [2021-12-14 17:53:20,792 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:53:20,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925714863] [2021-12-14 17:53:20,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:53:20,792 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:53:20,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:53:20,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:53:20,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:53:20,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-14 17:53:20,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:53:20,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 17:53:20,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:53:20,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-14 17:53:20,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:53:20,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-14 17:53:20,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:53:20,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 17:53:20,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:53:20,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-14 17:53:20,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:53:20,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-14 17:53:20,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:53:20,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 17:53:20,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:53:21,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-14 17:53:21,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:53:21,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-14 17:53:21,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:53:21,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 17:53:21,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:53:21,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-14 17:53:21,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:53:21,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-14 17:53:21,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:53:21,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-14 17:53:21,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:53:21,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:53:21,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:53:21,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-14 17:53:21,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:53:21,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-14 17:53:21,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:53:21,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:53:21,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:53:21,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-14 17:53:21,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:53:21,089 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2021-12-14 17:53:21,090 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:53:21,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925714863] [2021-12-14 17:53:21,090 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925714863] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:53:21,090 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:53:21,090 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 17:53:21,090 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512608640] [2021-12-14 17:53:21,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:53:21,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 17:53:21,091 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:53:21,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 17:53:21,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-14 17:53:21,092 INFO L87 Difference]: Start difference. First operand 3874 states and 5444 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-14 17:53:25,488 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:53:27,764 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:53:28,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:53:28,762 INFO L93 Difference]: Finished difference Result 5222 states and 7501 transitions. [2021-12-14 17:53:28,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 17:53:28,763 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 178 [2021-12-14 17:53:28,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:53:28,763 INFO L225 Difference]: With dead ends: 5222 [2021-12-14 17:53:28,763 INFO L226 Difference]: Without dead ends: 0 [2021-12-14 17:53:28,776 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-12-14 17:53:28,776 INFO L933 BasicCegarLoop]: 2059 mSDtfsCounter, 2711 mSDsluCounter, 1816 mSDsCounter, 0 mSdLazyCounter, 1878 mSolverCounterSat, 765 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2887 SdHoareTripleChecker+Valid, 3875 SdHoareTripleChecker+Invalid, 2645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 765 IncrementalHoareTripleChecker+Valid, 1878 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2021-12-14 17:53:28,777 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2887 Valid, 3875 Invalid, 2645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [765 Valid, 1878 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2021-12-14 17:53:28,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-14 17:53:28,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-14 17:53:28,777 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) [2021-12-14 17:53:28,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-14 17:53:28,778 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 178 [2021-12-14 17:53:28,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:53:28,778 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-14 17:53:28,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-14 17:53:28,779 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-14 17:53:28,779 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-14 17:53:28,781 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-14 17:53:28,781 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-14 17:53:28,782 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.