./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--unix--unix.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_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--unix--unix.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 fe313da0c6b218ced50e4197dc755b81036d59e37c56d6141b10ae8e848ca9fd --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 17:47:57,223 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 17:47:57,225 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 17:47:57,290 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 17:47:57,291 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 17:47:57,293 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 17:47:57,295 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 17:47:57,300 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 17:47:57,301 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 17:47:57,303 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 17:47:57,304 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 17:47:57,305 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 17:47:57,306 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 17:47:57,309 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 17:47:57,311 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 17:47:57,312 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 17:47:57,314 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 17:47:57,315 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 17:47:57,316 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 17:47:57,317 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 17:47:57,318 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 17:47:57,320 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 17:47:57,320 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 17:47:57,321 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 17:47:57,323 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 17:47:57,325 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 17:47:57,326 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 17:47:57,326 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 17:47:57,327 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 17:47:57,328 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 17:47:57,328 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 17:47:57,328 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 17:47:57,329 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 17:47:57,330 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 17:47:57,332 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 17:47:57,333 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 17:47:57,333 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 17:47:57,334 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 17:47:57,334 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 17:47:57,334 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 17:47:57,335 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 17:47:57,336 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-14 17:47:57,361 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 17:47:57,362 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 17:47:57,362 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 17:47:57,362 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 17:47:57,363 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 17:47:57,363 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 17:47:57,364 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 17:47:57,364 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 17:47:57,364 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 17:47:57,364 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 17:47:57,365 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 17:47:57,365 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 17:47:57,365 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 17:47:57,365 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 17:47:57,366 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 17:47:57,366 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 17:47:57,366 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 17:47:57,366 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 17:47:57,366 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 17:47:57,367 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 17:47:57,367 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 17:47:57,367 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 17:47:57,367 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 17:47:57,367 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 17:47:57,367 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 17:47:57,368 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 17:47:57,368 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 17:47:57,368 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 17:47:57,368 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 17:47:57,368 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 17:47:57,368 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 17:47:57,369 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe313da0c6b218ced50e4197dc755b81036d59e37c56d6141b10ae8e848ca9fd [2021-12-14 17:47:57,613 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 17:47:57,633 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 17:47:57,636 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 17:47:57,637 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 17:47:57,638 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 17:47:57,639 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--unix--unix.ko-entry_point.cil.out.i [2021-12-14 17:47:57,703 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3957d8a5/ecf90ffb76264df39e023fd46ab9230e/FLAG0c8c759a9 [2021-12-14 17:47:58,560 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 17:47:58,561 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--unix--unix.ko-entry_point.cil.out.i [2021-12-14 17:47:58,620 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3957d8a5/ecf90ffb76264df39e023fd46ab9230e/FLAG0c8c759a9 [2021-12-14 17:47:59,053 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3957d8a5/ecf90ffb76264df39e023fd46ab9230e [2021-12-14 17:47:59,055 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 17:47:59,056 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 17:47:59,057 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 17:47:59,057 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 17:47:59,060 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 17:47:59,060 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:47:59" (1/1) ... [2021-12-14 17:47:59,061 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2057a55e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:47:59, skipping insertion in model container [2021-12-14 17:47:59,061 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:47:59" (1/1) ... [2021-12-14 17:47:59,066 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 17:47:59,233 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 17:47:59,806 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5693] [2021-12-14 17:47:59,806 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5694-5695] [2021-12-14 17:48:00,211 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_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--unix--unix.ko-entry_point.cil.out.i[183417,183430] [2021-12-14 17:48:01,496 WARN L610 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-12-14 17:48:01,524 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 17:48:01,571 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 17:48:01,648 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5693] [2021-12-14 17:48:01,649 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5694-5695] [2021-12-14 17:48:01,687 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_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--unix--unix.ko-entry_point.cil.out.i[183417,183430] [2021-12-14 17:48:02,020 WARN L610 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-12-14 17:48:02,027 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 17:48:02,178 INFO L208 MainTranslator]: Completed translation [2021-12-14 17:48:02,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:48:02 WrapperNode [2021-12-14 17:48:02,179 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 17:48:02,180 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 17:48:02,180 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 17:48:02,180 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 17:48:02,186 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:48:02" (1/1) ... [2021-12-14 17:48:02,277 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:48:02" (1/1) ... [2021-12-14 17:48:02,441 INFO L137 Inliner]: procedures = 454, calls = 2280, calls flagged for inlining = 217, calls inlined = 215, statements flattened = 7339 [2021-12-14 17:48:02,441 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 17:48:02,443 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 17:48:02,443 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 17:48:02,443 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 17:48:02,450 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:48:02" (1/1) ... [2021-12-14 17:48:02,451 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:48:02" (1/1) ... [2021-12-14 17:48:02,492 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:48:02" (1/1) ... [2021-12-14 17:48:02,492 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:48:02" (1/1) ... [2021-12-14 17:48:02,636 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:48:02" (1/1) ... [2021-12-14 17:48:02,666 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:48:02" (1/1) ... [2021-12-14 17:48:02,704 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:48:02" (1/1) ... [2021-12-14 17:48:02,744 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 17:48:02,746 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 17:48:02,746 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 17:48:02,748 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 17:48:02,749 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:48:02" (1/1) ... [2021-12-14 17:48:02,755 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 17:48:02,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 17:48:02,776 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 17:48:02,791 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 17:48:02,821 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-12-14 17:48:02,821 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-12-14 17:48:02,822 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-12-14 17:48:02,822 INFO L130 BoogieDeclarations]: Found specification of procedure unix_gc [2021-12-14 17:48:02,822 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_gc [2021-12-14 17:48:02,822 INFO L130 BoogieDeclarations]: Found specification of procedure unix_sysctl_unregister [2021-12-14 17:48:02,822 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_sysctl_unregister [2021-12-14 17:48:02,822 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2021-12-14 17:48:02,822 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2021-12-14 17:48:02,823 INFO L130 BoogieDeclarations]: Found specification of procedure seq_putc [2021-12-14 17:48:02,823 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_putc [2021-12-14 17:48:02,823 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-12-14 17:48:02,823 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-12-14 17:48:02,823 INFO L130 BoogieDeclarations]: Found specification of procedure sock_sndtimeo [2021-12-14 17:48:02,823 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_sndtimeo [2021-12-14 17:48:02,823 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-14 17:48:02,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-14 17:48:02,824 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-14 17:48:02,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-14 17:48:02,824 INFO L130 BoogieDeclarations]: Found specification of procedure unix_release_addr [2021-12-14 17:48:02,824 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_release_addr [2021-12-14 17:48:02,824 INFO L130 BoogieDeclarations]: Found specification of procedure unix_state_double_lock [2021-12-14 17:48:02,824 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_state_double_lock [2021-12-14 17:48:02,824 INFO L130 BoogieDeclarations]: Found specification of procedure unix_set_peek_off [2021-12-14 17:48:02,825 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_set_peek_off [2021-12-14 17:48:02,825 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2021-12-14 17:48:02,825 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2021-12-14 17:48:02,825 INFO L130 BoogieDeclarations]: Found specification of procedure unix_dgram_disconnected [2021-12-14 17:48:02,825 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_dgram_disconnected [2021-12-14 17:48:02,825 INFO L130 BoogieDeclarations]: Found specification of procedure __clear_bit [2021-12-14 17:48:02,825 INFO L138 BoogieDeclarations]: Found implementation of procedure __clear_bit [2021-12-14 17:48:02,826 INFO L130 BoogieDeclarations]: Found specification of procedure scm_destroy [2021-12-14 17:48:02,826 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_destroy [2021-12-14 17:48:02,826 INFO L130 BoogieDeclarations]: Found specification of procedure put_cmsg [2021-12-14 17:48:02,826 INFO L138 BoogieDeclarations]: Found implementation of procedure put_cmsg [2021-12-14 17:48:02,826 INFO L130 BoogieDeclarations]: Found specification of procedure unix_create1 [2021-12-14 17:48:02,826 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_create1 [2021-12-14 17:48:02,826 INFO L130 BoogieDeclarations]: Found specification of procedure unix_dgram_poll [2021-12-14 17:48:02,827 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_dgram_poll [2021-12-14 17:48:02,827 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-14 17:48:02,827 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-14 17:48:02,827 INFO L130 BoogieDeclarations]: Found specification of procedure skb_peek [2021-12-14 17:48:02,827 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_peek [2021-12-14 17:48:02,828 INFO L130 BoogieDeclarations]: Found specification of procedure unix_recvq_full [2021-12-14 17:48:02,828 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_recvq_full [2021-12-14 17:48:02,828 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2021-12-14 17:48:02,828 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2021-12-14 17:48:02,828 INFO L130 BoogieDeclarations]: Found specification of procedure unix_shutdown [2021-12-14 17:48:02,829 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_shutdown [2021-12-14 17:48:02,829 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-12-14 17:48:02,829 INFO L130 BoogieDeclarations]: Found specification of procedure scan_children [2021-12-14 17:48:02,830 INFO L138 BoogieDeclarations]: Found implementation of procedure scan_children [2021-12-14 17:48:02,830 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-14 17:48:02,830 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2021-12-14 17:48:02,830 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2021-12-14 17:48:02,831 INFO L130 BoogieDeclarations]: Found specification of procedure sk_peek_offset_fwd [2021-12-14 17:48:02,831 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_peek_offset_fwd [2021-12-14 17:48:02,831 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-12-14 17:48:02,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 17:48:02,831 INFO L130 BoogieDeclarations]: Found specification of procedure unix_find_other [2021-12-14 17:48:02,832 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_find_other [2021-12-14 17:48:02,832 INFO L130 BoogieDeclarations]: Found specification of procedure unix_scm_to_skb [2021-12-14 17:48:02,832 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_scm_to_skb [2021-12-14 17:48:02,832 INFO L130 BoogieDeclarations]: Found specification of procedure scm_send [2021-12-14 17:48:02,832 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_send [2021-12-14 17:48:02,833 INFO L130 BoogieDeclarations]: Found specification of procedure sk_set_socket [2021-12-14 17:48:02,833 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_set_socket [2021-12-14 17:48:02,833 INFO L130 BoogieDeclarations]: Found specification of procedure unix_autobind [2021-12-14 17:48:02,833 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_autobind [2021-12-14 17:48:02,833 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-14 17:48:02,833 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-14 17:48:02,833 INFO L130 BoogieDeclarations]: Found specification of procedure unix_release_sock [2021-12-14 17:48:02,834 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_release_sock [2021-12-14 17:48:02,834 INFO L130 BoogieDeclarations]: Found specification of procedure sock_put [2021-12-14 17:48:02,834 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_put [2021-12-14 17:48:02,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-14 17:48:02,834 INFO L130 BoogieDeclarations]: Found specification of procedure unix_mkname [2021-12-14 17:48:02,834 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_mkname [2021-12-14 17:48:02,834 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-14 17:48:02,835 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-14 17:48:02,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-14 17:48:02,835 INFO L130 BoogieDeclarations]: Found specification of procedure sock_intr_errno [2021-12-14 17:48:02,835 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_intr_errno [2021-12-14 17:48:02,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 17:48:02,836 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_long_inc [2021-12-14 17:48:02,836 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_long_inc [2021-12-14 17:48:02,836 INFO L130 BoogieDeclarations]: Found specification of procedure unix_may_send [2021-12-14 17:48:02,836 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_may_send [2021-12-14 17:48:02,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-14 17:48:02,837 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-14 17:48:02,837 INFO L130 BoogieDeclarations]: Found specification of procedure list_move_tail [2021-12-14 17:48:02,837 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move_tail [2021-12-14 17:48:02,837 INFO L130 BoogieDeclarations]: Found specification of procedure __validate_creds [2021-12-14 17:48:02,838 INFO L138 BoogieDeclarations]: Found implementation of procedure __validate_creds [2021-12-14 17:48:02,838 INFO L130 BoogieDeclarations]: Found specification of procedure unix_listen [2021-12-14 17:48:02,838 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_listen [2021-12-14 17:48:02,838 INFO L130 BoogieDeclarations]: Found specification of procedure sk_sleep [2021-12-14 17:48:02,838 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_sleep [2021-12-14 17:48:02,838 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2021-12-14 17:48:02,838 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2021-12-14 17:48:02,838 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-14 17:48:02,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-14 17:48:02,839 INFO L130 BoogieDeclarations]: Found specification of procedure seq_file_net [2021-12-14 17:48:02,839 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_file_net [2021-12-14 17:48:02,839 INFO L130 BoogieDeclarations]: Found specification of procedure kiocb_to_siocb [2021-12-14 17:48:02,839 INFO L138 BoogieDeclarations]: Found implementation of procedure kiocb_to_siocb [2021-12-14 17:48:02,839 INFO L130 BoogieDeclarations]: Found specification of procedure init_peercred [2021-12-14 17:48:02,840 INFO L138 BoogieDeclarations]: Found implementation of procedure init_peercred [2021-12-14 17:48:02,840 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-12-14 17:48:02,840 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-12-14 17:48:02,840 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2021-12-14 17:48:02,840 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2021-12-14 17:48:02,841 INFO L130 BoogieDeclarations]: Found specification of procedure unix_dgram_sendmsg [2021-12-14 17:48:02,843 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_dgram_sendmsg [2021-12-14 17:48:02,843 INFO L130 BoogieDeclarations]: Found specification of procedure unix_stream_connect [2021-12-14 17:48:02,844 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_stream_connect [2021-12-14 17:48:02,844 INFO L130 BoogieDeclarations]: Found specification of procedure get_cred [2021-12-14 17:48:02,845 INFO L138 BoogieDeclarations]: Found implementation of procedure get_cred [2021-12-14 17:48:02,845 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_long_dec [2021-12-14 17:48:02,845 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_long_dec [2021-12-14 17:48:02,846 INFO L130 BoogieDeclarations]: Found specification of procedure unix_skb_len [2021-12-14 17:48:02,846 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_skb_len [2021-12-14 17:48:02,851 INFO L130 BoogieDeclarations]: Found specification of procedure sock_flag [2021-12-14 17:48:02,851 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_flag [2021-12-14 17:48:02,852 INFO L130 BoogieDeclarations]: Found specification of procedure unix_state_double_unlock [2021-12-14 17:48:02,852 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_state_double_unlock [2021-12-14 17:48:02,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-14 17:48:02,852 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-12-14 17:48:02,852 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-12-14 17:48:02,853 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 17:48:02,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-14 17:48:02,853 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-14 17:48:02,853 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-14 17:48:02,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-14 17:48:02,853 INFO L130 BoogieDeclarations]: Found specification of procedure unix_net_exit [2021-12-14 17:48:02,853 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_net_exit [2021-12-14 17:48:02,853 INFO L130 BoogieDeclarations]: Found specification of procedure unix_detach_fds [2021-12-14 17:48:02,854 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_detach_fds [2021-12-14 17:48:02,854 INFO L130 BoogieDeclarations]: Found specification of procedure touch_atime [2021-12-14 17:48:02,854 INFO L138 BoogieDeclarations]: Found implementation of procedure touch_atime [2021-12-14 17:48:02,854 INFO L130 BoogieDeclarations]: Found specification of procedure unix_seq_stop [2021-12-14 17:48:02,854 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_seq_stop [2021-12-14 17:48:02,854 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-12-14 17:48:02,854 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-12-14 17:48:02,854 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2021-12-14 17:48:02,855 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2021-12-14 17:48:02,855 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_datagram_iovec [2021-12-14 17:48:02,855 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_datagram_iovec [2021-12-14 17:48:02,855 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-14 17:48:02,855 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-14 17:48:02,855 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-12-14 17:48:02,855 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-12-14 17:48:02,855 INFO L130 BoogieDeclarations]: Found specification of procedure unix_accept [2021-12-14 17:48:02,855 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_accept [2021-12-14 17:48:02,856 INFO L130 BoogieDeclarations]: Found specification of procedure unix_dgram_recvmsg [2021-12-14 17:48:02,856 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_dgram_recvmsg [2021-12-14 17:48:02,856 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-14 17:48:02,856 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-14 17:48:02,856 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2021-12-14 17:48:02,856 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2021-12-14 17:48:02,856 INFO L130 BoogieDeclarations]: Found specification of procedure unix_wait_for_peer [2021-12-14 17:48:02,856 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_wait_for_peer [2021-12-14 17:48:02,857 INFO L130 BoogieDeclarations]: Found specification of procedure unix_hash_fold [2021-12-14 17:48:02,857 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_hash_fold [2021-12-14 17:48:02,857 INFO L130 BoogieDeclarations]: Found specification of procedure scan_inflight [2021-12-14 17:48:02,857 INFO L138 BoogieDeclarations]: Found implementation of procedure scan_inflight [2021-12-14 17:48:02,857 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-12-14 17:48:02,857 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-12-14 17:48:02,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 17:48:02,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 17:48:02,858 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-14 17:48:02,858 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-14 17:48:02,858 INFO L130 BoogieDeclarations]: Found specification of procedure __kuid_val [2021-12-14 17:48:02,858 INFO L138 BoogieDeclarations]: Found implementation of procedure __kuid_val [2021-12-14 17:48:02,858 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock_bh [2021-12-14 17:48:02,858 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock_bh [2021-12-14 17:48:02,858 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock_bh [2021-12-14 17:48:02,858 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock_bh [2021-12-14 17:48:02,858 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-14 17:48:02,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-14 17:48:02,859 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-14 17:48:02,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-14 17:48:02,859 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_unlink [2021-12-14 17:48:02,859 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_unlink [2021-12-14 17:48:02,859 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-14 17:48:02,859 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-14 17:48:02,859 INFO L130 BoogieDeclarations]: Found specification of procedure unix_peer_get [2021-12-14 17:48:02,860 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_peer_get [2021-12-14 17:48:02,860 INFO L130 BoogieDeclarations]: Found specification of procedure unix_bind [2021-12-14 17:48:02,860 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_bind [2021-12-14 17:48:02,860 INFO L130 BoogieDeclarations]: Found specification of procedure sock_hold [2021-12-14 17:48:02,860 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_hold [2021-12-14 17:48:02,860 INFO L130 BoogieDeclarations]: Found specification of procedure unix_copy_addr [2021-12-14 17:48:02,860 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_copy_addr [2021-12-14 17:48:02,860 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2021-12-14 17:48:02,861 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2021-12-14 17:48:02,861 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2021-12-14 17:48:02,861 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2021-12-14 17:48:02,861 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-14 17:48:02,861 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-14 17:48:02,861 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-14 17:48:02,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-14 17:48:02,861 INFO L130 BoogieDeclarations]: Found specification of procedure sock_poll_wait [2021-12-14 17:48:02,861 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_poll_wait [2021-12-14 17:48:02,862 INFO L130 BoogieDeclarations]: Found specification of procedure __unix_find_socket_byname [2021-12-14 17:48:02,862 INFO L138 BoogieDeclarations]: Found implementation of procedure __unix_find_socket_byname [2021-12-14 17:48:02,862 INFO L130 BoogieDeclarations]: Found specification of procedure sock_net [2021-12-14 17:48:02,862 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_net [2021-12-14 17:48:02,862 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-12-14 17:48:02,862 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-12-14 17:48:02,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-14 17:48:02,862 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-14 17:48:02,863 INFO L130 BoogieDeclarations]: Found specification of procedure scm_recv [2021-12-14 17:48:02,863 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_recv [2021-12-14 17:48:02,863 INFO L130 BoogieDeclarations]: Found specification of procedure unix_release [2021-12-14 17:48:02,863 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_release [2021-12-14 17:48:02,863 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-14 17:48:02,863 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-14 17:48:02,863 INFO L130 BoogieDeclarations]: Found specification of procedure path_put [2021-12-14 17:48:02,863 INFO L138 BoogieDeclarations]: Found implementation of procedure path_put [2021-12-14 17:48:02,863 INFO L130 BoogieDeclarations]: Found specification of procedure sock_no_getsockopt [2021-12-14 17:48:02,864 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_no_getsockopt [2021-12-14 17:48:02,864 INFO L130 BoogieDeclarations]: Found specification of procedure sock_alloc_send_pskb [2021-12-14 17:48:02,864 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_alloc_send_pskb [2021-12-14 17:48:02,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 17:48:02,864 INFO L130 BoogieDeclarations]: Found specification of procedure sk_peek_offset [2021-12-14 17:48:02,864 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_peek_offset [2021-12-14 17:48:02,864 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-14 17:48:02,864 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-14 17:48:02,865 INFO L130 BoogieDeclarations]: Found specification of procedure unix_get_socket [2021-12-14 17:48:02,865 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_get_socket [2021-12-14 17:48:02,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-14 17:48:02,865 INFO L130 BoogieDeclarations]: Found specification of procedure sk_unhashed [2021-12-14 17:48:02,865 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_unhashed [2021-12-14 17:48:02,865 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2021-12-14 17:48:02,865 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2021-12-14 17:48:02,865 INFO L130 BoogieDeclarations]: Found specification of procedure get_pid [2021-12-14 17:48:02,865 INFO L138 BoogieDeclarations]: Found implementation of procedure get_pid [2021-12-14 17:48:02,866 INFO L130 BoogieDeclarations]: Found specification of procedure put_pid [2021-12-14 17:48:02,867 INFO L138 BoogieDeclarations]: Found implementation of procedure put_pid [2021-12-14 17:48:02,869 INFO L130 BoogieDeclarations]: Found specification of procedure scm_set_cred [2021-12-14 17:48:02,869 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_set_cred [2021-12-14 17:48:02,869 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_tail [2021-12-14 17:48:02,870 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_tail [2021-12-14 17:48:02,870 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2021-12-14 17:48:02,870 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2021-12-14 17:48:02,870 INFO L130 BoogieDeclarations]: Found specification of procedure local_bh_disable [2021-12-14 17:48:02,870 INFO L138 BoogieDeclarations]: Found implementation of procedure local_bh_disable [2021-12-14 17:48:02,870 INFO L130 BoogieDeclarations]: Found specification of procedure sk_wake_async [2021-12-14 17:48:02,871 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_wake_async [2021-12-14 17:48:02,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-14 17:48:02,871 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-12-14 17:48:02,872 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-12-14 17:48:02,872 INFO L130 BoogieDeclarations]: Found specification of procedure maybe_add_creds [2021-12-14 17:48:02,872 INFO L138 BoogieDeclarations]: Found implementation of procedure maybe_add_creds [2021-12-14 17:48:02,872 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2021-12-14 17:48:02,872 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2021-12-14 17:48:02,872 INFO L130 BoogieDeclarations]: Found specification of procedure skb_free_datagram [2021-12-14 17:48:02,872 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_free_datagram [2021-12-14 17:48:02,872 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-14 17:48:02,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-14 17:48:02,873 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_datagram_from_iovec [2021-12-14 17:48:02,873 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_datagram_from_iovec [2021-12-14 17:48:02,873 INFO L130 BoogieDeclarations]: Found specification of procedure sock_prot_inuse_add [2021-12-14 17:48:02,873 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_prot_inuse_add [2021-12-14 17:48:02,873 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-12-14 17:48:02,873 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-12-14 17:48:02,873 INFO L130 BoogieDeclarations]: Found specification of procedure sk_next [2021-12-14 17:48:02,873 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_next [2021-12-14 17:48:02,874 INFO L130 BoogieDeclarations]: Found specification of procedure __unix_insert_socket [2021-12-14 17:48:02,874 INFO L138 BoogieDeclarations]: Found implementation of procedure __unix_insert_socket [2021-12-14 17:48:02,874 INFO L130 BoogieDeclarations]: Found specification of procedure sock_error [2021-12-14 17:48:02,874 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_error [2021-12-14 17:48:02,874 INFO L130 BoogieDeclarations]: Found specification of procedure __unix_remove_socket [2021-12-14 17:48:02,874 INFO L138 BoogieDeclarations]: Found implementation of procedure __unix_remove_socket [2021-12-14 17:48:02,874 INFO L130 BoogieDeclarations]: Found specification of procedure csum_partial [2021-12-14 17:48:02,874 INFO L138 BoogieDeclarations]: Found implementation of procedure csum_partial [2021-12-14 17:48:02,875 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-14 17:48:02,875 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-14 17:48:02,875 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2021-12-14 17:48:02,875 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2021-12-14 17:48:02,875 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-14 17:48:02,875 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-14 17:48:02,875 INFO L130 BoogieDeclarations]: Found specification of procedure scm_fp_dup [2021-12-14 17:48:02,875 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_fp_dup [2021-12-14 17:48:02,875 INFO L130 BoogieDeclarations]: Found specification of procedure security_unix_may_send [2021-12-14 17:48:02,876 INFO L138 BoogieDeclarations]: Found implementation of procedure security_unix_may_send [2021-12-14 17:48:02,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 17:48:02,876 INFO L130 BoogieDeclarations]: Found specification of procedure sock_no_mmap [2021-12-14 17:48:02,876 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_no_mmap [2021-12-14 17:48:02,876 INFO L130 BoogieDeclarations]: Found specification of procedure scm_destroy_cred [2021-12-14 17:48:02,876 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_destroy_cred [2021-12-14 17:48:02,876 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-14 17:48:02,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-14 17:48:02,876 INFO L130 BoogieDeclarations]: Found specification of procedure put_cred [2021-12-14 17:48:02,877 INFO L138 BoogieDeclarations]: Found implementation of procedure put_cred [2021-12-14 17:48:02,877 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up_sync_key [2021-12-14 17:48:02,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up_sync_key [2021-12-14 17:48:02,877 INFO L130 BoogieDeclarations]: Found specification of procedure __kgid_val [2021-12-14 17:48:02,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __kgid_val [2021-12-14 17:48:02,877 INFO L130 BoogieDeclarations]: Found specification of procedure task_tgid [2021-12-14 17:48:02,877 INFO L138 BoogieDeclarations]: Found implementation of procedure task_tgid [2021-12-14 17:48:02,877 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-12-14 17:48:02,877 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-12-14 17:48:02,878 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2021-12-14 17:48:02,878 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2021-12-14 17:48:02,878 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_unix_gc [2021-12-14 17:48:02,878 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_unix_gc [2021-12-14 17:48:02,878 INFO L130 BoogieDeclarations]: Found specification of procedure __set_bit [2021-12-14 17:48:02,878 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_bit [2021-12-14 17:48:02,878 INFO L130 BoogieDeclarations]: Found specification of procedure unix_next_socket [2021-12-14 17:48:02,878 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_next_socket [2021-12-14 17:48:02,879 INFO L130 BoogieDeclarations]: Found specification of procedure sock_no_setsockopt [2021-12-14 17:48:02,879 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_no_setsockopt [2021-12-14 17:48:02,879 INFO L130 BoogieDeclarations]: Found specification of procedure sk_peek_offset_bwd [2021-12-14 17:48:02,879 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_peek_offset_bwd [2021-12-14 17:48:02,879 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-12-14 17:48:02,879 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-12-14 17:48:02,879 INFO L130 BoogieDeclarations]: Found specification of procedure unix_writable [2021-12-14 17:48:02,879 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_writable [2021-12-14 17:48:02,880 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_long_read [2021-12-14 17:48:02,880 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_long_read [2021-12-14 17:48:02,880 INFO L130 BoogieDeclarations]: Found specification of procedure unix_socketpair [2021-12-14 17:48:02,880 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_socketpair [2021-12-14 17:48:02,880 INFO L130 BoogieDeclarations]: Found specification of procedure sock_no_sendpage [2021-12-14 17:48:02,880 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_no_sendpage [2021-12-14 17:48:02,880 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-14 17:48:02,880 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-14 17:48:02,880 INFO L130 BoogieDeclarations]: Found specification of procedure unix_getname [2021-12-14 17:48:02,881 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_getname [2021-12-14 17:48:02,881 INFO L130 BoogieDeclarations]: Found specification of procedure unix_ioctl [2021-12-14 17:48:02,881 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_ioctl [2021-12-14 17:48:02,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 17:48:02,881 INFO L130 BoogieDeclarations]: Found specification of procedure local_bh_enable [2021-12-14 17:48:02,881 INFO L138 BoogieDeclarations]: Found implementation of procedure local_bh_enable [2021-12-14 17:48:03,885 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 17:48:03,888 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 17:48:04,120 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-14 17:48:09,101 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 17:48:09,125 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 17:48:09,125 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-14 17:48:09,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:48:09 BoogieIcfgContainer [2021-12-14 17:48:09,129 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 17:48:09,131 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 17:48:09,131 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 17:48:09,133 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 17:48:09,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 05:47:59" (1/3) ... [2021-12-14 17:48:09,134 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a55a924 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:48:09, skipping insertion in model container [2021-12-14 17:48:09,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:48:02" (2/3) ... [2021-12-14 17:48:09,134 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a55a924 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:48:09, skipping insertion in model container [2021-12-14 17:48:09,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:48:09" (3/3) ... [2021-12-14 17:48:09,135 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--unix--unix.ko-entry_point.cil.out.i [2021-12-14 17:48:09,140 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 17:48:09,140 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 17:48:09,193 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 17:48:09,207 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 17:48:09,208 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-14 17:48:09,266 INFO L276 IsEmpty]: Start isEmpty. Operand has 2739 states, 1884 states have (on average 1.3540339702760085) internal successors, (2551), 1986 states have internal predecessors, (2551), 697 states have call successors, (697), 157 states have call predecessors, (697), 156 states have return successors, (688), 672 states have call predecessors, (688), 688 states have call successors, (688) [2021-12-14 17:48:09,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2021-12-14 17:48:09,294 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:48:09,294 INFO L514 BasicCegarLoop]: trace histogram [28, 28, 28, 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] [2021-12-14 17:48:09,295 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:48:09,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:48:09,299 INFO L85 PathProgramCache]: Analyzing trace with hash 517155252, now seen corresponding path program 1 times [2021-12-14 17:48:09,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:48:09,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801370547] [2021-12-14 17:48:09,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:48:09,307 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:48:09,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:09,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:48:09,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:09,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-14 17:48:09,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:09,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 17:48:09,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:09,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-14 17:48:09,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:09,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-14 17:48:09,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:09,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 17:48:09,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:09,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-14 17:48:09,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:09,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-14 17:48:09,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:09,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 17:48:10,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:10,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-14 17:48:10,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:10,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-14 17:48:10,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:10,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-14 17:48:10,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:10,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-14 17:48:10,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:10,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 17:48:10,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:10,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-14 17:48:10,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:10,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 17:48:10,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:10,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-14 17:48:10,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:10,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-14 17:48:10,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:10,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-14 17:48:10,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:10,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-14 17:48:10,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:10,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-14 17:48:10,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:10,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-14 17:48:10,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:10,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-14 17:48:10,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:10,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-14 17:48:10,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:10,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-14 17:48:10,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:10,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-14 17:48:10,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:10,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-14 17:48:10,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:10,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-14 17:48:10,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:10,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-14 17:48:10,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:10,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-14 17:48:10,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:10,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-14 17:48:10,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:10,282 INFO L134 CoverageAnalysis]: Checked inductivity of 1516 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1516 trivial. 0 not checked. [2021-12-14 17:48:10,282 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:48:10,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801370547] [2021-12-14 17:48:10,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801370547] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:48:10,286 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:48:10,287 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 17:48:10,288 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501713413] [2021-12-14 17:48:10,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:48:10,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 17:48:10,293 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:48:10,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 17:48:10,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 17:48:10,326 INFO L87 Difference]: Start difference. First operand has 2739 states, 1884 states have (on average 1.3540339702760085) internal successors, (2551), 1986 states have internal predecessors, (2551), 697 states have call successors, (697), 157 states have call predecessors, (697), 156 states have return successors, (688), 672 states have call predecessors, (688), 688 states have call successors, (688) Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-12-14 17:48:16,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:48:16,050 INFO L93 Difference]: Finished difference Result 8005 states and 11723 transitions. [2021-12-14 17:48:16,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 17:48:16,053 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 214 [2021-12-14 17:48:16,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:48:16,101 INFO L225 Difference]: With dead ends: 8005 [2021-12-14 17:48:16,101 INFO L226 Difference]: Without dead ends: 5218 [2021-12-14 17:48:16,123 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 17:48:16,128 INFO L933 BasicCegarLoop]: 4141 mSDtfsCounter, 4495 mSDsluCounter, 4458 mSDsCounter, 0 mSdLazyCounter, 2601 mSolverCounterSat, 1780 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5017 SdHoareTripleChecker+Valid, 8599 SdHoareTripleChecker+Invalid, 4381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1780 IncrementalHoareTripleChecker+Valid, 2601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2021-12-14 17:48:16,129 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5017 Valid, 8599 Invalid, 4381 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1780 Valid, 2601 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2021-12-14 17:48:16,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5218 states. [2021-12-14 17:48:16,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5218 to 4981. [2021-12-14 17:48:16,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4981 states, 3434 states have (on average 1.3444962143273151) internal successors, (4617), 3611 states have internal predecessors, (4617), 1238 states have call successors, (1238), 309 states have call predecessors, (1238), 308 states have return successors, (1237), 1206 states have call predecessors, (1237), 1237 states have call successors, (1237) [2021-12-14 17:48:16,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4981 states to 4981 states and 7092 transitions. [2021-12-14 17:48:16,471 INFO L78 Accepts]: Start accepts. Automaton has 4981 states and 7092 transitions. Word has length 214 [2021-12-14 17:48:16,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:48:16,472 INFO L470 AbstractCegarLoop]: Abstraction has 4981 states and 7092 transitions. [2021-12-14 17:48:16,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-12-14 17:48:16,472 INFO L276 IsEmpty]: Start isEmpty. Operand 4981 states and 7092 transitions. [2021-12-14 17:48:16,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2021-12-14 17:48:16,480 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:48:16,480 INFO L514 BasicCegarLoop]: trace histogram [28, 28, 28, 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] [2021-12-14 17:48:16,480 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 17:48:16,481 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:48:16,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:48:16,481 INFO L85 PathProgramCache]: Analyzing trace with hash 2586623, now seen corresponding path program 1 times [2021-12-14 17:48:16,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:48:16,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260928704] [2021-12-14 17:48:16,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:48:16,482 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:48:16,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:16,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:48:16,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:16,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-14 17:48:16,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:16,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 17:48:16,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:16,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-14 17:48:16,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:16,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-14 17:48:16,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:16,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 17:48:16,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:16,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-14 17:48:16,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:16,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-14 17:48:16,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:16,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 17:48:16,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:16,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-14 17:48:16,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:16,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-14 17:48:16,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:16,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-14 17:48:16,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:16,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-14 17:48:16,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:16,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 17:48:16,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:16,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-14 17:48:16,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:16,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 17:48:16,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:16,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-14 17:48:16,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:16,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-14 17:48:16,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:16,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-14 17:48:16,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:16,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-14 17:48:16,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:16,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-14 17:48:16,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:16,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-14 17:48:16,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:16,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-14 17:48:16,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:17,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-14 17:48:17,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:17,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-14 17:48:17,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:17,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-14 17:48:17,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:17,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-14 17:48:17,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:17,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-14 17:48:17,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:17,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-14 17:48:17,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:17,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-12-14 17:48:17,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:17,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-14 17:48:17,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:17,076 INFO L134 CoverageAnalysis]: Checked inductivity of 1516 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1516 trivial. 0 not checked. [2021-12-14 17:48:17,077 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:48:17,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260928704] [2021-12-14 17:48:17,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260928704] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:48:17,077 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:48:17,078 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 17:48:17,078 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415891815] [2021-12-14 17:48:17,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:48:17,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 17:48:17,083 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:48:17,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 17:48:17,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 17:48:17,086 INFO L87 Difference]: Start difference. First operand 4981 states and 7092 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-12-14 17:48:23,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:48:23,114 INFO L93 Difference]: Finished difference Result 15018 states and 21515 transitions. [2021-12-14 17:48:23,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 17:48:23,115 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 213 [2021-12-14 17:48:23,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:48:23,180 INFO L225 Difference]: With dead ends: 15018 [2021-12-14 17:48:23,180 INFO L226 Difference]: Without dead ends: 10096 [2021-12-14 17:48:23,208 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 17:48:23,209 INFO L933 BasicCegarLoop]: 4541 mSDtfsCounter, 4776 mSDsluCounter, 4641 mSDsCounter, 0 mSdLazyCounter, 2694 mSolverCounterSat, 1721 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5355 SdHoareTripleChecker+Valid, 9182 SdHoareTripleChecker+Invalid, 4415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1721 IncrementalHoareTripleChecker+Valid, 2694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2021-12-14 17:48:23,210 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5355 Valid, 9182 Invalid, 4415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1721 Valid, 2694 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2021-12-14 17:48:23,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10096 states. [2021-12-14 17:48:23,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10096 to 9627. [2021-12-14 17:48:23,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9627 states, 6657 states have (on average 1.3406940063091484) internal successors, (8925), 6996 states have internal predecessors, (8925), 2357 states have call successors, (2357), 613 states have call predecessors, (2357), 612 states have return successors, (2356), 2301 states have call predecessors, (2356), 2356 states have call successors, (2356) [2021-12-14 17:48:23,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9627 states to 9627 states and 13638 transitions. [2021-12-14 17:48:23,653 INFO L78 Accepts]: Start accepts. Automaton has 9627 states and 13638 transitions. Word has length 213 [2021-12-14 17:48:23,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:48:23,654 INFO L470 AbstractCegarLoop]: Abstraction has 9627 states and 13638 transitions. [2021-12-14 17:48:23,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-12-14 17:48:23,655 INFO L276 IsEmpty]: Start isEmpty. Operand 9627 states and 13638 transitions. [2021-12-14 17:48:23,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2021-12-14 17:48:23,664 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:48:23,665 INFO L514 BasicCegarLoop]: trace histogram [28, 28, 28, 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] [2021-12-14 17:48:23,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-14 17:48:23,665 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:48:23,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:48:23,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1347570925, now seen corresponding path program 1 times [2021-12-14 17:48:23,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:48:23,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137841640] [2021-12-14 17:48:23,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:48:23,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:48:23,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:23,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:48:23,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:23,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-14 17:48:23,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:23,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 17:48:23,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:23,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-14 17:48:23,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:23,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-14 17:48:23,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:23,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 17:48:23,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:23,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-14 17:48:23,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:23,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-14 17:48:23,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:23,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 17:48:23,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:23,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-14 17:48:23,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:23,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-14 17:48:24,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:24,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-14 17:48:24,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:24,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-14 17:48:24,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:24,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 17:48:24,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:24,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-14 17:48:24,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:24,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 17:48:24,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:24,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-14 17:48:24,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:24,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-14 17:48:24,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:24,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-14 17:48:24,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:24,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-14 17:48:24,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:24,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-14 17:48:24,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:24,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-14 17:48:24,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:24,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-14 17:48:24,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:24,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-14 17:48:24,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:24,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-14 17:48:24,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:24,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-14 17:48:24,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:24,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-14 17:48:24,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:24,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-14 17:48:24,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:24,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-14 17:48:24,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:24,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-14 17:48:24,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:24,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-14 17:48:24,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:24,211 INFO L134 CoverageAnalysis]: Checked inductivity of 1516 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1516 trivial. 0 not checked. [2021-12-14 17:48:24,211 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:48:24,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137841640] [2021-12-14 17:48:24,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137841640] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:48:24,211 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:48:24,212 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 17:48:24,212 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64434713] [2021-12-14 17:48:24,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:48:24,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 17:48:24,213 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:48:24,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 17:48:24,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 17:48:24,214 INFO L87 Difference]: Start difference. First operand 9627 states and 13638 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-12-14 17:48:29,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:48:29,692 INFO L93 Difference]: Finished difference Result 27017 states and 38426 transitions. [2021-12-14 17:48:29,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 17:48:29,695 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 220 [2021-12-14 17:48:29,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:48:29,827 INFO L225 Difference]: With dead ends: 27017 [2021-12-14 17:48:29,827 INFO L226 Difference]: Without dead ends: 17449 [2021-12-14 17:48:29,882 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 17:48:29,886 INFO L933 BasicCegarLoop]: 6210 mSDtfsCounter, 4091 mSDsluCounter, 5136 mSDsCounter, 0 mSdLazyCounter, 3037 mSolverCounterSat, 1382 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4670 SdHoareTripleChecker+Valid, 11346 SdHoareTripleChecker+Invalid, 4419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1382 IncrementalHoareTripleChecker+Valid, 3037 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2021-12-14 17:48:29,888 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4670 Valid, 11346 Invalid, 4419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1382 Valid, 3037 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2021-12-14 17:48:29,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17449 states. [2021-12-14 17:48:30,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17449 to 16622. [2021-12-14 17:48:30,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16622 states, 11543 states have (on average 1.3377804730139478) internal successors, (15442), 12127 states have internal predecessors, (15442), 3985 states have call successors, (3985), 1094 states have call predecessors, (3985), 1093 states have return successors, (3984), 3889 states have call predecessors, (3984), 3984 states have call successors, (3984) [2021-12-14 17:48:30,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16622 states to 16622 states and 23411 transitions. [2021-12-14 17:48:30,660 INFO L78 Accepts]: Start accepts. Automaton has 16622 states and 23411 transitions. Word has length 220 [2021-12-14 17:48:30,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:48:30,662 INFO L470 AbstractCegarLoop]: Abstraction has 16622 states and 23411 transitions. [2021-12-14 17:48:30,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-12-14 17:48:30,662 INFO L276 IsEmpty]: Start isEmpty. Operand 16622 states and 23411 transitions. [2021-12-14 17:48:30,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2021-12-14 17:48:30,682 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:48:30,682 INFO L514 BasicCegarLoop]: trace histogram [50, 50, 50, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 17:48:30,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-14 17:48:30,682 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:48:30,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:48:30,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1196821462, now seen corresponding path program 1 times [2021-12-14 17:48:30,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:48:30,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542155331] [2021-12-14 17:48:30,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:48:30,686 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:48:30,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:31,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:48:31,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:31,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-14 17:48:31,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:31,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 17:48:31,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:31,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-14 17:48:31,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:31,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-14 17:48:31,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:31,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 17:48:31,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:31,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-14 17:48:31,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:31,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-14 17:48:31,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:31,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 17:48:31,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:31,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-14 17:48:31,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:31,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-14 17:48:31,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:31,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-14 17:48:31,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:31,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-14 17:48:31,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:31,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 17:48:31,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:31,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-14 17:48:31,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:31,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 17:48:31,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:31,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-14 17:48:31,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:31,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-14 17:48:31,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:31,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-14 17:48:31,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:31,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-14 17:48:31,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:31,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-14 17:48:31,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:31,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-14 17:48:31,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:31,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-14 17:48:31,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:31,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-14 17:48:31,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:31,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-14 17:48:31,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:31,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-14 17:48:31,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:31,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-14 17:48:31,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:31,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-14 17:48:31,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:31,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-14 17:48:31,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:31,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-14 17:48:31,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:31,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-12-14 17:48:31,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:31,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-14 17:48:31,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:31,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-14 17:48:31,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:31,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-12-14 17:48:31,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:31,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-12-14 17:48:31,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:31,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-12-14 17:48:31,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:31,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-12-14 17:48:31,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:31,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-12-14 17:48:31,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:31,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-12-14 17:48:31,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:31,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-12-14 17:48:31,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:31,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2021-12-14 17:48:31,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:31,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2021-12-14 17:48:31,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:31,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2021-12-14 17:48:31,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:31,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-12-14 17:48:31,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:31,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2021-12-14 17:48:31,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:31,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2021-12-14 17:48:31,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:31,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2021-12-14 17:48:31,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:31,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2021-12-14 17:48:31,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:31,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2021-12-14 17:48:31,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:31,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2021-12-14 17:48:31,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:31,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2021-12-14 17:48:31,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:31,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2021-12-14 17:48:31,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:31,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2021-12-14 17:48:31,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:31,785 INFO L134 CoverageAnalysis]: Checked inductivity of 4908 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4908 trivial. 0 not checked. [2021-12-14 17:48:31,785 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:48:31,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542155331] [2021-12-14 17:48:31,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542155331] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:48:31,786 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:48:31,786 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 17:48:31,786 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039573644] [2021-12-14 17:48:31,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:48:31,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 17:48:31,787 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:48:31,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 17:48:31,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 17:48:31,788 INFO L87 Difference]: Start difference. First operand 16622 states and 23411 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (57), 4 states have call predecessors, (57), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) [2021-12-14 17:48:36,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:48:36,118 INFO L93 Difference]: Finished difference Result 29009 states and 41217 transitions. [2021-12-14 17:48:36,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 17:48:36,120 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (57), 4 states have call predecessors, (57), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) Word has length 370 [2021-12-14 17:48:36,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:48:36,268 INFO L225 Difference]: With dead ends: 29009 [2021-12-14 17:48:36,268 INFO L226 Difference]: Without dead ends: 29006 [2021-12-14 17:48:36,284 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 17:48:36,287 INFO L933 BasicCegarLoop]: 4310 mSDtfsCounter, 3963 mSDsluCounter, 4063 mSDsCounter, 0 mSdLazyCounter, 2385 mSolverCounterSat, 1485 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4317 SdHoareTripleChecker+Valid, 8373 SdHoareTripleChecker+Invalid, 3870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1485 IncrementalHoareTripleChecker+Valid, 2385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2021-12-14 17:48:36,288 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4317 Valid, 8373 Invalid, 3870 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1485 Valid, 2385 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2021-12-14 17:48:36,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29006 states. [2021-12-14 17:48:37,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29006 to 27409. [2021-12-14 17:48:37,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27409 states, 19383 states have (on average 1.343600061909921) internal successors, (26043), 20255 states have internal predecessors, (26043), 6038 states have call successors, (6038), 1964 states have call predecessors, (6038), 1987 states have return successors, (6345), 5863 states have call predecessors, (6345), 6037 states have call successors, (6345) [2021-12-14 17:48:37,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27409 states to 27409 states and 38426 transitions. [2021-12-14 17:48:37,530 INFO L78 Accepts]: Start accepts. Automaton has 27409 states and 38426 transitions. Word has length 370 [2021-12-14 17:48:37,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:48:37,531 INFO L470 AbstractCegarLoop]: Abstraction has 27409 states and 38426 transitions. [2021-12-14 17:48:37,532 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (57), 4 states have call predecessors, (57), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) [2021-12-14 17:48:37,532 INFO L276 IsEmpty]: Start isEmpty. Operand 27409 states and 38426 transitions. [2021-12-14 17:48:37,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2021-12-14 17:48:37,615 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:48:37,615 INFO L514 BasicCegarLoop]: trace histogram [50, 50, 50, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 17:48:37,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-14 17:48:37,616 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:48:37,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:48:37,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1958315436, now seen corresponding path program 1 times [2021-12-14 17:48:37,618 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:48:37,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779458049] [2021-12-14 17:48:37,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:48:37,618 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:48:37,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:37,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:48:37,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:37,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-14 17:48:37,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:37,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 17:48:37,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:37,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-14 17:48:37,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:37,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-14 17:48:37,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:37,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 17:48:37,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:37,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-14 17:48:37,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:37,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-14 17:48:37,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:37,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 17:48:37,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:37,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-14 17:48:37,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:38,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-14 17:48:38,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:38,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-14 17:48:38,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:38,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-14 17:48:38,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:38,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 17:48:38,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:38,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-14 17:48:38,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:38,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 17:48:38,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:38,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-14 17:48:38,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:38,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-14 17:48:38,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:38,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-14 17:48:38,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:38,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-14 17:48:38,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:38,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-14 17:48:38,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:38,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-14 17:48:38,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:38,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-14 17:48:38,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:38,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-14 17:48:38,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:38,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-14 17:48:38,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:38,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-14 17:48:38,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:38,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-14 17:48:38,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:38,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-14 17:48:38,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:38,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-14 17:48:38,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:38,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-14 17:48:38,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:38,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-12-14 17:48:38,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:38,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-14 17:48:38,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:38,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-14 17:48:38,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:38,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-12-14 17:48:38,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:38,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-12-14 17:48:38,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:38,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-12-14 17:48:38,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:38,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-12-14 17:48:38,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:38,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-12-14 17:48:38,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:38,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-12-14 17:48:38,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:38,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-12-14 17:48:38,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:38,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2021-12-14 17:48:38,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:38,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2021-12-14 17:48:38,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:38,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2021-12-14 17:48:38,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:38,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-12-14 17:48:38,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:38,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2021-12-14 17:48:38,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:38,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2021-12-14 17:48:38,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:38,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2021-12-14 17:48:38,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:38,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2021-12-14 17:48:38,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:38,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2021-12-14 17:48:38,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:38,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2021-12-14 17:48:38,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:38,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2021-12-14 17:48:38,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:38,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:48:38,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:38,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2021-12-14 17:48:38,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:38,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2021-12-14 17:48:38,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:38,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2021-12-14 17:48:38,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:38,381 INFO L134 CoverageAnalysis]: Checked inductivity of 4915 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4911 trivial. 0 not checked. [2021-12-14 17:48:38,381 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:48:38,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779458049] [2021-12-14 17:48:38,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779458049] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:48:38,382 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:48:38,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 17:48:38,382 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587322408] [2021-12-14 17:48:38,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:48:38,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 17:48:38,383 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:48:38,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 17:48:38,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 17:48:38,384 INFO L87 Difference]: Start difference. First operand 27409 states and 38426 transitions. Second operand has 5 states, 5 states have (on average 25.0) internal successors, (125), 3 states have internal predecessors, (125), 2 states have call successors, (59), 4 states have call predecessors, (59), 1 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55)