./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 e19ca921 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-dev-e19ca92 [2021-12-22 14:42:08,333 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 14:42:08,336 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 14:42:08,371 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 14:42:08,371 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 14:42:08,377 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 14:42:08,378 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 14:42:08,379 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 14:42:08,380 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 14:42:08,380 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 14:42:08,381 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 14:42:08,382 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 14:42:08,382 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 14:42:08,383 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 14:42:08,384 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 14:42:08,384 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 14:42:08,385 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 14:42:08,386 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 14:42:08,392 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 14:42:08,396 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 14:42:08,398 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 14:42:08,402 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 14:42:08,403 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 14:42:08,406 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 14:42:08,408 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 14:42:08,412 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 14:42:08,412 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 14:42:08,413 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 14:42:08,413 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 14:42:08,415 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 14:42:08,415 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 14:42:08,416 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 14:42:08,417 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 14:42:08,418 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 14:42:08,419 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 14:42:08,420 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 14:42:08,421 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 14:42:08,421 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 14:42:08,422 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 14:42:08,422 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 14:42:08,423 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 14:42:08,423 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-22 14:42:08,448 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 14:42:08,449 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 14:42:08,449 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 14:42:08,450 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 14:42:08,450 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 14:42:08,451 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 14:42:08,451 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 14:42:08,451 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 14:42:08,452 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 14:42:08,452 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 14:42:08,453 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 14:42:08,453 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 14:42:08,453 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 14:42:08,453 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 14:42:08,454 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 14:42:08,454 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 14:42:08,454 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 14:42:08,454 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 14:42:08,454 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 14:42:08,455 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 14:42:08,455 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 14:42:08,455 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 14:42:08,455 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 14:42:08,455 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 14:42:08,455 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 14:42:08,455 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 14:42:08,456 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 14:42:08,457 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 14:42:08,457 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 14:42:08,457 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 14:42:08,457 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 14:42:08,457 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe313da0c6b218ced50e4197dc755b81036d59e37c56d6141b10ae8e848ca9fd [2021-12-22 14:42:08,621 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 14:42:08,642 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 14:42:08,644 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 14:42:08,645 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 14:42:08,646 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 14:42:08,647 INFO L432 ainManager$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 [2021-12-22 14:42:08,694 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a94cbb2c4/543bf64fc09d45ada5a213da92a4c1ac/FLAG9899c84cd [2021-12-22 14:42:09,378 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 14:42:09,379 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 [2021-12-22 14:42:09,427 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a94cbb2c4/543bf64fc09d45ada5a213da92a4c1ac/FLAG9899c84cd [2021-12-22 14:42:09,931 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a94cbb2c4/543bf64fc09d45ada5a213da92a4c1ac [2021-12-22 14:42:09,933 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 14:42:09,934 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 14:42:09,934 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 14:42:09,935 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 14:42:09,937 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 14:42:09,937 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:42:09" (1/1) ... [2021-12-22 14:42:09,938 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30b4bca4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:42:09, skipping insertion in model container [2021-12-22 14:42:09,938 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:42:09" (1/1) ... [2021-12-22 14:42:09,942 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 14:42:10,051 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 14:42:10,413 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5693] [2021-12-22 14:42:10,413 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] [2021-12-22 14:42:10,934 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] [2021-12-22 14:42:12,000 WARN L610 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-12-22 14:42:12,021 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 14:42:12,078 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 14:42:12,181 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5693] [2021-12-22 14:42:12,182 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] [2021-12-22 14:42:12,195 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] [2021-12-22 14:42:12,573 WARN L610 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-12-22 14:42:12,580 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 14:42:12,716 INFO L208 MainTranslator]: Completed translation [2021-12-22 14:42:12,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:42:12 WrapperNode [2021-12-22 14:42:12,716 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 14:42:12,728 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 14:42:12,728 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 14:42:12,728 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 14:42:12,733 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:42:12" (1/1) ... [2021-12-22 14:42:12,808 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:42:12" (1/1) ... [2021-12-22 14:42:12,957 INFO L137 Inliner]: procedures = 454, calls = 2280, calls flagged for inlining = 217, calls inlined = 215, statements flattened = 7339 [2021-12-22 14:42:12,958 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 14:42:12,959 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 14:42:12,959 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 14:42:12,959 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 14:42:12,965 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:42:12" (1/1) ... [2021-12-22 14:42:12,966 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:42:12" (1/1) ... [2021-12-22 14:42:13,008 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:42:12" (1/1) ... [2021-12-22 14:42:13,010 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:42:12" (1/1) ... [2021-12-22 14:42:13,100 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:42:12" (1/1) ... [2021-12-22 14:42:13,116 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:42:12" (1/1) ... [2021-12-22 14:42:13,139 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:42:12" (1/1) ... [2021-12-22 14:42:13,165 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 14:42:13,165 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 14:42:13,165 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 14:42:13,166 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 14:42:13,166 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:42:12" (1/1) ... [2021-12-22 14:42:13,171 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 14:42:13,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:42:13,203 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) [2021-12-22 14:42:13,266 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 [2021-12-22 14:42:13,277 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-12-22 14:42:13,277 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-12-22 14:42:13,277 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-12-22 14:42:13,277 INFO L130 BoogieDeclarations]: Found specification of procedure unix_gc [2021-12-22 14:42:13,278 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_gc [2021-12-22 14:42:13,278 INFO L130 BoogieDeclarations]: Found specification of procedure unix_sysctl_unregister [2021-12-22 14:42:13,278 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_sysctl_unregister [2021-12-22 14:42:13,278 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2021-12-22 14:42:13,278 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2021-12-22 14:42:13,278 INFO L130 BoogieDeclarations]: Found specification of procedure seq_putc [2021-12-22 14:42:13,278 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_putc [2021-12-22 14:42:13,278 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-12-22 14:42:13,279 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-12-22 14:42:13,279 INFO L130 BoogieDeclarations]: Found specification of procedure sock_sndtimeo [2021-12-22 14:42:13,279 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_sndtimeo [2021-12-22 14:42:13,279 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-22 14:42:13,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-22 14:42:13,279 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-22 14:42:13,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-22 14:42:13,279 INFO L130 BoogieDeclarations]: Found specification of procedure unix_release_addr [2021-12-22 14:42:13,280 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_release_addr [2021-12-22 14:42:13,280 INFO L130 BoogieDeclarations]: Found specification of procedure unix_state_double_lock [2021-12-22 14:42:13,280 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_state_double_lock [2021-12-22 14:42:13,280 INFO L130 BoogieDeclarations]: Found specification of procedure unix_set_peek_off [2021-12-22 14:42:13,280 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_set_peek_off [2021-12-22 14:42:13,280 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2021-12-22 14:42:13,280 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2021-12-22 14:42:13,280 INFO L130 BoogieDeclarations]: Found specification of procedure unix_dgram_disconnected [2021-12-22 14:42:13,280 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_dgram_disconnected [2021-12-22 14:42:13,281 INFO L130 BoogieDeclarations]: Found specification of procedure __clear_bit [2021-12-22 14:42:13,281 INFO L138 BoogieDeclarations]: Found implementation of procedure __clear_bit [2021-12-22 14:42:13,281 INFO L130 BoogieDeclarations]: Found specification of procedure scm_destroy [2021-12-22 14:42:13,281 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_destroy [2021-12-22 14:42:13,281 INFO L130 BoogieDeclarations]: Found specification of procedure put_cmsg [2021-12-22 14:42:13,281 INFO L138 BoogieDeclarations]: Found implementation of procedure put_cmsg [2021-12-22 14:42:13,281 INFO L130 BoogieDeclarations]: Found specification of procedure unix_create1 [2021-12-22 14:42:13,282 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_create1 [2021-12-22 14:42:13,282 INFO L130 BoogieDeclarations]: Found specification of procedure unix_dgram_poll [2021-12-22 14:42:13,282 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_dgram_poll [2021-12-22 14:42:13,282 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-22 14:42:13,282 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-22 14:42:13,282 INFO L130 BoogieDeclarations]: Found specification of procedure skb_peek [2021-12-22 14:42:13,282 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_peek [2021-12-22 14:42:13,282 INFO L130 BoogieDeclarations]: Found specification of procedure unix_recvq_full [2021-12-22 14:42:13,283 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_recvq_full [2021-12-22 14:42:13,283 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2021-12-22 14:42:13,283 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2021-12-22 14:42:13,283 INFO L130 BoogieDeclarations]: Found specification of procedure unix_shutdown [2021-12-22 14:42:13,283 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_shutdown [2021-12-22 14:42:13,284 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-12-22 14:42:13,284 INFO L130 BoogieDeclarations]: Found specification of procedure scan_children [2021-12-22 14:42:13,284 INFO L138 BoogieDeclarations]: Found implementation of procedure scan_children [2021-12-22 14:42:13,285 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-22 14:42:13,285 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2021-12-22 14:42:13,285 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2021-12-22 14:42:13,286 INFO L130 BoogieDeclarations]: Found specification of procedure sk_peek_offset_fwd [2021-12-22 14:42:13,286 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_peek_offset_fwd [2021-12-22 14:42:13,286 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-12-22 14:42:13,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 14:42:13,286 INFO L130 BoogieDeclarations]: Found specification of procedure unix_find_other [2021-12-22 14:42:13,287 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_find_other [2021-12-22 14:42:13,287 INFO L130 BoogieDeclarations]: Found specification of procedure unix_scm_to_skb [2021-12-22 14:42:13,287 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_scm_to_skb [2021-12-22 14:42:13,287 INFO L130 BoogieDeclarations]: Found specification of procedure scm_send [2021-12-22 14:42:13,287 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_send [2021-12-22 14:42:13,287 INFO L130 BoogieDeclarations]: Found specification of procedure sk_set_socket [2021-12-22 14:42:13,287 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_set_socket [2021-12-22 14:42:13,287 INFO L130 BoogieDeclarations]: Found specification of procedure unix_autobind [2021-12-22 14:42:13,287 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_autobind [2021-12-22 14:42:13,288 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-22 14:42:13,288 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-22 14:42:13,288 INFO L130 BoogieDeclarations]: Found specification of procedure unix_release_sock [2021-12-22 14:42:13,288 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_release_sock [2021-12-22 14:42:13,288 INFO L130 BoogieDeclarations]: Found specification of procedure sock_put [2021-12-22 14:42:13,289 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_put [2021-12-22 14:42:13,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-22 14:42:13,289 INFO L130 BoogieDeclarations]: Found specification of procedure unix_mkname [2021-12-22 14:42:13,289 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_mkname [2021-12-22 14:42:13,289 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-22 14:42:13,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-22 14:42:13,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-22 14:42:13,289 INFO L130 BoogieDeclarations]: Found specification of procedure sock_intr_errno [2021-12-22 14:42:13,289 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_intr_errno [2021-12-22 14:42:13,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-22 14:42:13,290 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_long_inc [2021-12-22 14:42:13,290 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_long_inc [2021-12-22 14:42:13,290 INFO L130 BoogieDeclarations]: Found specification of procedure unix_may_send [2021-12-22 14:42:13,290 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_may_send [2021-12-22 14:42:13,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-22 14:42:13,291 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-22 14:42:13,291 INFO L130 BoogieDeclarations]: Found specification of procedure list_move_tail [2021-12-22 14:42:13,291 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move_tail [2021-12-22 14:42:13,291 INFO L130 BoogieDeclarations]: Found specification of procedure __validate_creds [2021-12-22 14:42:13,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __validate_creds [2021-12-22 14:42:13,292 INFO L130 BoogieDeclarations]: Found specification of procedure unix_listen [2021-12-22 14:42:13,292 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_listen [2021-12-22 14:42:13,292 INFO L130 BoogieDeclarations]: Found specification of procedure sk_sleep [2021-12-22 14:42:13,292 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_sleep [2021-12-22 14:42:13,292 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2021-12-22 14:42:13,292 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2021-12-22 14:42:13,292 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-22 14:42:13,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-22 14:42:13,293 INFO L130 BoogieDeclarations]: Found specification of procedure seq_file_net [2021-12-22 14:42:13,293 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_file_net [2021-12-22 14:42:13,293 INFO L130 BoogieDeclarations]: Found specification of procedure kiocb_to_siocb [2021-12-22 14:42:13,293 INFO L138 BoogieDeclarations]: Found implementation of procedure kiocb_to_siocb [2021-12-22 14:42:13,293 INFO L130 BoogieDeclarations]: Found specification of procedure init_peercred [2021-12-22 14:42:13,293 INFO L138 BoogieDeclarations]: Found implementation of procedure init_peercred [2021-12-22 14:42:13,293 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-12-22 14:42:13,294 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-12-22 14:42:13,294 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2021-12-22 14:42:13,294 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2021-12-22 14:42:13,294 INFO L130 BoogieDeclarations]: Found specification of procedure unix_dgram_sendmsg [2021-12-22 14:42:13,296 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_dgram_sendmsg [2021-12-22 14:42:13,296 INFO L130 BoogieDeclarations]: Found specification of procedure unix_stream_connect [2021-12-22 14:42:13,296 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_stream_connect [2021-12-22 14:42:13,297 INFO L130 BoogieDeclarations]: Found specification of procedure get_cred [2021-12-22 14:42:13,297 INFO L138 BoogieDeclarations]: Found implementation of procedure get_cred [2021-12-22 14:42:13,298 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_long_dec [2021-12-22 14:42:13,298 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_long_dec [2021-12-22 14:42:13,298 INFO L130 BoogieDeclarations]: Found specification of procedure unix_skb_len [2021-12-22 14:42:13,298 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_skb_len [2021-12-22 14:42:13,301 INFO L130 BoogieDeclarations]: Found specification of procedure sock_flag [2021-12-22 14:42:13,302 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_flag [2021-12-22 14:42:13,302 INFO L130 BoogieDeclarations]: Found specification of procedure unix_state_double_unlock [2021-12-22 14:42:13,302 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_state_double_unlock [2021-12-22 14:42:13,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-22 14:42:13,302 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-12-22 14:42:13,303 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-12-22 14:42:13,303 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 14:42:13,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-22 14:42:13,303 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-22 14:42:13,303 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-22 14:42:13,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-22 14:42:13,303 INFO L130 BoogieDeclarations]: Found specification of procedure unix_net_exit [2021-12-22 14:42:13,303 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_net_exit [2021-12-22 14:42:13,303 INFO L130 BoogieDeclarations]: Found specification of procedure unix_detach_fds [2021-12-22 14:42:13,303 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_detach_fds [2021-12-22 14:42:13,304 INFO L130 BoogieDeclarations]: Found specification of procedure touch_atime [2021-12-22 14:42:13,304 INFO L138 BoogieDeclarations]: Found implementation of procedure touch_atime [2021-12-22 14:42:13,304 INFO L130 BoogieDeclarations]: Found specification of procedure unix_seq_stop [2021-12-22 14:42:13,304 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_seq_stop [2021-12-22 14:42:13,304 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-12-22 14:42:13,304 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-12-22 14:42:13,304 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2021-12-22 14:42:13,304 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2021-12-22 14:42:13,304 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_datagram_iovec [2021-12-22 14:42:13,304 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_datagram_iovec [2021-12-22 14:42:13,305 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-22 14:42:13,305 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-22 14:42:13,305 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-12-22 14:42:13,305 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-12-22 14:42:13,305 INFO L130 BoogieDeclarations]: Found specification of procedure unix_accept [2021-12-22 14:42:13,305 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_accept [2021-12-22 14:42:13,305 INFO L130 BoogieDeclarations]: Found specification of procedure unix_dgram_recvmsg [2021-12-22 14:42:13,305 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_dgram_recvmsg [2021-12-22 14:42:13,305 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-22 14:42:13,305 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-22 14:42:13,306 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2021-12-22 14:42:13,306 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2021-12-22 14:42:13,306 INFO L130 BoogieDeclarations]: Found specification of procedure unix_wait_for_peer [2021-12-22 14:42:13,306 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_wait_for_peer [2021-12-22 14:42:13,306 INFO L130 BoogieDeclarations]: Found specification of procedure unix_hash_fold [2021-12-22 14:42:13,306 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_hash_fold [2021-12-22 14:42:13,306 INFO L130 BoogieDeclarations]: Found specification of procedure scan_inflight [2021-12-22 14:42:13,306 INFO L138 BoogieDeclarations]: Found implementation of procedure scan_inflight [2021-12-22 14:42:13,306 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-12-22 14:42:13,306 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-12-22 14:42:13,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 14:42:13,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 14:42:13,307 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-22 14:42:13,307 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-22 14:42:13,307 INFO L130 BoogieDeclarations]: Found specification of procedure __kuid_val [2021-12-22 14:42:13,307 INFO L138 BoogieDeclarations]: Found implementation of procedure __kuid_val [2021-12-22 14:42:13,307 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock_bh [2021-12-22 14:42:13,307 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock_bh [2021-12-22 14:42:13,307 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock_bh [2021-12-22 14:42:13,307 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock_bh [2021-12-22 14:42:13,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-22 14:42:13,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-22 14:42:13,308 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-22 14:42:13,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-22 14:42:13,308 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_unlink [2021-12-22 14:42:13,308 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_unlink [2021-12-22 14:42:13,309 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-22 14:42:13,309 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-22 14:42:13,309 INFO L130 BoogieDeclarations]: Found specification of procedure unix_peer_get [2021-12-22 14:42:13,309 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_peer_get [2021-12-22 14:42:13,310 INFO L130 BoogieDeclarations]: Found specification of procedure unix_bind [2021-12-22 14:42:13,310 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_bind [2021-12-22 14:42:13,310 INFO L130 BoogieDeclarations]: Found specification of procedure sock_hold [2021-12-22 14:42:13,310 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_hold [2021-12-22 14:42:13,310 INFO L130 BoogieDeclarations]: Found specification of procedure unix_copy_addr [2021-12-22 14:42:13,310 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_copy_addr [2021-12-22 14:42:13,310 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2021-12-22 14:42:13,310 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2021-12-22 14:42:13,310 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2021-12-22 14:42:13,310 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2021-12-22 14:42:13,311 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-22 14:42:13,311 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-22 14:42:13,311 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-22 14:42:13,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-22 14:42:13,311 INFO L130 BoogieDeclarations]: Found specification of procedure sock_poll_wait [2021-12-22 14:42:13,311 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_poll_wait [2021-12-22 14:42:13,311 INFO L130 BoogieDeclarations]: Found specification of procedure __unix_find_socket_byname [2021-12-22 14:42:13,311 INFO L138 BoogieDeclarations]: Found implementation of procedure __unix_find_socket_byname [2021-12-22 14:42:13,311 INFO L130 BoogieDeclarations]: Found specification of procedure sock_net [2021-12-22 14:42:13,312 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_net [2021-12-22 14:42:13,312 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-12-22 14:42:13,312 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-12-22 14:42:13,312 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-22 14:42:13,312 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-22 14:42:13,312 INFO L130 BoogieDeclarations]: Found specification of procedure scm_recv [2021-12-22 14:42:13,312 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_recv [2021-12-22 14:42:13,312 INFO L130 BoogieDeclarations]: Found specification of procedure unix_release [2021-12-22 14:42:13,312 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_release [2021-12-22 14:42:13,312 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-22 14:42:13,313 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-22 14:42:13,313 INFO L130 BoogieDeclarations]: Found specification of procedure path_put [2021-12-22 14:42:13,313 INFO L138 BoogieDeclarations]: Found implementation of procedure path_put [2021-12-22 14:42:13,313 INFO L130 BoogieDeclarations]: Found specification of procedure sock_no_getsockopt [2021-12-22 14:42:13,399 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_no_getsockopt [2021-12-22 14:42:13,399 INFO L130 BoogieDeclarations]: Found specification of procedure sock_alloc_send_pskb [2021-12-22 14:42:13,399 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_alloc_send_pskb [2021-12-22 14:42:13,400 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-22 14:42:13,400 INFO L130 BoogieDeclarations]: Found specification of procedure sk_peek_offset [2021-12-22 14:42:13,400 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_peek_offset [2021-12-22 14:42:13,400 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-22 14:42:13,400 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-22 14:42:13,400 INFO L130 BoogieDeclarations]: Found specification of procedure unix_get_socket [2021-12-22 14:42:13,400 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_get_socket [2021-12-22 14:42:13,400 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-22 14:42:13,400 INFO L130 BoogieDeclarations]: Found specification of procedure sk_unhashed [2021-12-22 14:42:13,400 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_unhashed [2021-12-22 14:42:13,400 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2021-12-22 14:42:13,400 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2021-12-22 14:42:13,400 INFO L130 BoogieDeclarations]: Found specification of procedure get_pid [2021-12-22 14:42:13,400 INFO L138 BoogieDeclarations]: Found implementation of procedure get_pid [2021-12-22 14:42:13,400 INFO L130 BoogieDeclarations]: Found specification of procedure put_pid [2021-12-22 14:42:13,400 INFO L138 BoogieDeclarations]: Found implementation of procedure put_pid [2021-12-22 14:42:13,400 INFO L130 BoogieDeclarations]: Found specification of procedure scm_set_cred [2021-12-22 14:42:13,400 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_set_cred [2021-12-22 14:42:13,400 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_tail [2021-12-22 14:42:13,400 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_tail [2021-12-22 14:42:13,400 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2021-12-22 14:42:13,400 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2021-12-22 14:42:13,400 INFO L130 BoogieDeclarations]: Found specification of procedure local_bh_disable [2021-12-22 14:42:13,400 INFO L138 BoogieDeclarations]: Found implementation of procedure local_bh_disable [2021-12-22 14:42:13,401 INFO L130 BoogieDeclarations]: Found specification of procedure sk_wake_async [2021-12-22 14:42:13,401 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_wake_async [2021-12-22 14:42:13,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-22 14:42:13,401 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-12-22 14:42:13,401 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-12-22 14:42:13,401 INFO L130 BoogieDeclarations]: Found specification of procedure maybe_add_creds [2021-12-22 14:42:13,401 INFO L138 BoogieDeclarations]: Found implementation of procedure maybe_add_creds [2021-12-22 14:42:13,401 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2021-12-22 14:42:13,401 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2021-12-22 14:42:13,401 INFO L130 BoogieDeclarations]: Found specification of procedure skb_free_datagram [2021-12-22 14:42:13,401 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_free_datagram [2021-12-22 14:42:13,401 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-22 14:42:13,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-22 14:42:13,401 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_datagram_from_iovec [2021-12-22 14:42:13,401 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_datagram_from_iovec [2021-12-22 14:42:13,401 INFO L130 BoogieDeclarations]: Found specification of procedure sock_prot_inuse_add [2021-12-22 14:42:13,401 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_prot_inuse_add [2021-12-22 14:42:13,401 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-12-22 14:42:13,401 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-12-22 14:42:13,401 INFO L130 BoogieDeclarations]: Found specification of procedure sk_next [2021-12-22 14:42:13,401 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_next [2021-12-22 14:42:13,401 INFO L130 BoogieDeclarations]: Found specification of procedure __unix_insert_socket [2021-12-22 14:42:13,401 INFO L138 BoogieDeclarations]: Found implementation of procedure __unix_insert_socket [2021-12-22 14:42:13,401 INFO L130 BoogieDeclarations]: Found specification of procedure sock_error [2021-12-22 14:42:13,402 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_error [2021-12-22 14:42:13,402 INFO L130 BoogieDeclarations]: Found specification of procedure __unix_remove_socket [2021-12-22 14:42:13,402 INFO L138 BoogieDeclarations]: Found implementation of procedure __unix_remove_socket [2021-12-22 14:42:13,402 INFO L130 BoogieDeclarations]: Found specification of procedure csum_partial [2021-12-22 14:42:13,402 INFO L138 BoogieDeclarations]: Found implementation of procedure csum_partial [2021-12-22 14:42:13,402 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-22 14:42:13,402 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-22 14:42:13,402 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2021-12-22 14:42:13,402 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2021-12-22 14:42:13,402 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-22 14:42:13,402 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-22 14:42:13,402 INFO L130 BoogieDeclarations]: Found specification of procedure scm_fp_dup [2021-12-22 14:42:13,402 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_fp_dup [2021-12-22 14:42:13,402 INFO L130 BoogieDeclarations]: Found specification of procedure security_unix_may_send [2021-12-22 14:42:13,402 INFO L138 BoogieDeclarations]: Found implementation of procedure security_unix_may_send [2021-12-22 14:42:13,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 14:42:13,402 INFO L130 BoogieDeclarations]: Found specification of procedure sock_no_mmap [2021-12-22 14:42:13,402 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_no_mmap [2021-12-22 14:42:13,402 INFO L130 BoogieDeclarations]: Found specification of procedure scm_destroy_cred [2021-12-22 14:42:13,402 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_destroy_cred [2021-12-22 14:42:13,402 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-22 14:42:13,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-22 14:42:13,402 INFO L130 BoogieDeclarations]: Found specification of procedure put_cred [2021-12-22 14:42:13,402 INFO L138 BoogieDeclarations]: Found implementation of procedure put_cred [2021-12-22 14:42:13,403 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up_sync_key [2021-12-22 14:42:13,403 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up_sync_key [2021-12-22 14:42:13,403 INFO L130 BoogieDeclarations]: Found specification of procedure __kgid_val [2021-12-22 14:42:13,403 INFO L138 BoogieDeclarations]: Found implementation of procedure __kgid_val [2021-12-22 14:42:13,403 INFO L130 BoogieDeclarations]: Found specification of procedure task_tgid [2021-12-22 14:42:13,403 INFO L138 BoogieDeclarations]: Found implementation of procedure task_tgid [2021-12-22 14:42:13,403 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-12-22 14:42:13,403 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-12-22 14:42:13,406 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2021-12-22 14:42:13,406 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2021-12-22 14:42:13,406 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_unix_gc [2021-12-22 14:42:13,406 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_unix_gc [2021-12-22 14:42:13,406 INFO L130 BoogieDeclarations]: Found specification of procedure __set_bit [2021-12-22 14:42:13,406 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_bit [2021-12-22 14:42:13,407 INFO L130 BoogieDeclarations]: Found specification of procedure unix_next_socket [2021-12-22 14:42:13,407 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_next_socket [2021-12-22 14:42:13,407 INFO L130 BoogieDeclarations]: Found specification of procedure sock_no_setsockopt [2021-12-22 14:42:13,407 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_no_setsockopt [2021-12-22 14:42:13,407 INFO L130 BoogieDeclarations]: Found specification of procedure sk_peek_offset_bwd [2021-12-22 14:42:13,407 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_peek_offset_bwd [2021-12-22 14:42:13,407 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-12-22 14:42:13,407 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-12-22 14:42:13,407 INFO L130 BoogieDeclarations]: Found specification of procedure unix_writable [2021-12-22 14:42:13,407 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_writable [2021-12-22 14:42:13,407 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_long_read [2021-12-22 14:42:13,407 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_long_read [2021-12-22 14:42:13,407 INFO L130 BoogieDeclarations]: Found specification of procedure unix_socketpair [2021-12-22 14:42:13,407 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_socketpair [2021-12-22 14:42:13,407 INFO L130 BoogieDeclarations]: Found specification of procedure sock_no_sendpage [2021-12-22 14:42:13,407 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_no_sendpage [2021-12-22 14:42:13,407 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-22 14:42:13,407 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-22 14:42:13,407 INFO L130 BoogieDeclarations]: Found specification of procedure unix_getname [2021-12-22 14:42:13,407 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_getname [2021-12-22 14:42:13,407 INFO L130 BoogieDeclarations]: Found specification of procedure unix_ioctl [2021-12-22 14:42:13,407 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_ioctl [2021-12-22 14:42:13,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 14:42:13,407 INFO L130 BoogieDeclarations]: Found specification of procedure local_bh_enable [2021-12-22 14:42:13,407 INFO L138 BoogieDeclarations]: Found implementation of procedure local_bh_enable [2021-12-22 14:42:14,190 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 14:42:14,193 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 14:42:14,345 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-22 14:42:18,567 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 14:42:18,579 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 14:42:18,580 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-22 14:42:18,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:42:18 BoogieIcfgContainer [2021-12-22 14:42:18,583 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 14:42:18,584 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 14:42:18,584 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 14:42:18,586 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 14:42:18,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 02:42:09" (1/3) ... [2021-12-22 14:42:18,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e90debf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:42:18, skipping insertion in model container [2021-12-22 14:42:18,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:42:12" (2/3) ... [2021-12-22 14:42:18,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e90debf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:42:18, skipping insertion in model container [2021-12-22 14:42:18,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:42:18" (3/3) ... [2021-12-22 14:42:18,588 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 [2021-12-22 14:42:18,592 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 14:42:18,592 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-22 14:42:18,638 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 14:42:18,644 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 [2021-12-22 14:42:18,644 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-22 14:42:18,715 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) [2021-12-22 14:42:18,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2021-12-22 14:42:18,737 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:42:18,738 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] [2021-12-22 14:42:18,738 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:42:18,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:42:18,741 INFO L85 PathProgramCache]: Analyzing trace with hash 517155252, now seen corresponding path program 1 times [2021-12-22 14:42:18,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:42:18,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114912500] [2021-12-22 14:42:18,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:42:18,747 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:42:19,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:19,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:42:19,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:19,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 14:42:19,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:19,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 14:42:19,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:19,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-22 14:42:19,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:19,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-22 14:42:19,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:19,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 14:42:19,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:19,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 14:42:19,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:19,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-22 14:42:19,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:19,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 14:42:19,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:19,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-22 14:42:19,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:19,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-22 14:42:19,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:19,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-22 14:42:19,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:19,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-22 14:42:19,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:19,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-22 14:42:19,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:19,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-22 14:42:19,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:19,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-22 14:42:19,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:19,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-22 14:42:19,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:19,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-22 14:42:19,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:19,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-22 14:42:19,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:19,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-22 14:42:19,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:19,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-22 14:42:19,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:19,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-22 14:42:19,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:19,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-22 14:42:19,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:19,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-22 14:42:19,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:19,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-22 14:42:19,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:19,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-22 14:42:19,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:19,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-22 14:42:19,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:19,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-22 14:42:19,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:19,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-22 14:42:19,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:19,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-22 14:42:19,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:19,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-22 14:42:19,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:19,614 INFO L134 CoverageAnalysis]: Checked inductivity of 1516 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1516 trivial. 0 not checked. [2021-12-22 14:42:19,614 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:42:19,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114912500] [2021-12-22 14:42:19,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114912500] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:42:19,615 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:42:19,615 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 14:42:19,616 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683045538] [2021-12-22 14:42:19,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:42:19,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 14:42:19,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:42:19,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 14:42:19,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-22 14:42:19,641 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) [2021-12-22 14:42:25,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:42:25,679 INFO L93 Difference]: Finished difference Result 8005 states and 11723 transitions. [2021-12-22 14:42:25,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 14:42:25,682 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 [2021-12-22 14:42:25,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:42:25,723 INFO L225 Difference]: With dead ends: 8005 [2021-12-22 14:42:25,724 INFO L226 Difference]: Without dead ends: 5218 [2021-12-22 14:42:25,740 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-22 14:42:25,744 INFO L933 BasicCegarLoop]: 4142 mSDtfsCounter, 4495 mSDsluCounter, 4460 mSDsCounter, 0 mSdLazyCounter, 2601 mSolverCounterSat, 1780 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5017 SdHoareTripleChecker+Valid, 8602 SdHoareTripleChecker+Invalid, 4381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1780 IncrementalHoareTripleChecker+Valid, 2601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2021-12-22 14:42:25,745 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5017 Valid, 8602 Invalid, 4381 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1780 Valid, 2601 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2021-12-22 14:42:25,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5218 states. [2021-12-22 14:42:25,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5218 to 4981. [2021-12-22 14:42:25,969 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) [2021-12-22 14:42:25,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4981 states to 4981 states and 7092 transitions. [2021-12-22 14:42:26,001 INFO L78 Accepts]: Start accepts. Automaton has 4981 states and 7092 transitions. Word has length 214 [2021-12-22 14:42:26,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:42:26,002 INFO L470 AbstractCegarLoop]: Abstraction has 4981 states and 7092 transitions. [2021-12-22 14:42:26,002 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) [2021-12-22 14:42:26,002 INFO L276 IsEmpty]: Start isEmpty. Operand 4981 states and 7092 transitions. [2021-12-22 14:42:26,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2021-12-22 14:42:26,007 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:42:26,007 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] [2021-12-22 14:42:26,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 14:42:26,008 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:42:26,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:42:26,008 INFO L85 PathProgramCache]: Analyzing trace with hash 2586623, now seen corresponding path program 1 times [2021-12-22 14:42:26,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:42:26,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101069843] [2021-12-22 14:42:26,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:42:26,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:42:26,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:26,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:42:26,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:26,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 14:42:26,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:26,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 14:42:26,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:26,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-22 14:42:26,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:26,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-22 14:42:26,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:26,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 14:42:26,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:26,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 14:42:26,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:26,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-22 14:42:26,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:26,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 14:42:26,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:26,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-22 14:42:26,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:26,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-22 14:42:26,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:26,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-22 14:42:26,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:26,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-22 14:42:26,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:26,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-22 14:42:26,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:26,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-22 14:42:26,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:26,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-22 14:42:26,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:26,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-22 14:42:26,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:26,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-22 14:42:26,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:26,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-22 14:42:26,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:26,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-22 14:42:26,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:26,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-22 14:42:26,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:26,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-22 14:42:26,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:26,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-22 14:42:26,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:26,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-22 14:42:26,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:26,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-22 14:42:26,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:26,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-22 14:42:26,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:26,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-22 14:42:26,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:26,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-22 14:42:26,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:26,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-22 14:42:26,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:26,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-12-22 14:42:26,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:26,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-22 14:42:26,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:26,390 INFO L134 CoverageAnalysis]: Checked inductivity of 1516 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1516 trivial. 0 not checked. [2021-12-22 14:42:26,390 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:42:26,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101069843] [2021-12-22 14:42:26,391 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101069843] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:42:26,391 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:42:26,391 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 14:42:26,391 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110588932] [2021-12-22 14:42:26,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:42:26,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 14:42:26,395 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:42:26,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 14:42:26,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-22 14:42:26,396 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) [2021-12-22 14:42:32,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:42:32,218 INFO L93 Difference]: Finished difference Result 15018 states and 21515 transitions. [2021-12-22 14:42:32,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 14:42:32,219 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 [2021-12-22 14:42:32,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:42:32,297 INFO L225 Difference]: With dead ends: 15018 [2021-12-22 14:42:32,298 INFO L226 Difference]: Without dead ends: 10096 [2021-12-22 14:42:32,330 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 [2021-12-22 14:42:32,331 INFO L933 BasicCegarLoop]: 4539 mSDtfsCounter, 4776 mSDsluCounter, 4639 mSDsCounter, 0 mSdLazyCounter, 2694 mSolverCounterSat, 1721 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5357 SdHoareTripleChecker+Valid, 9178 SdHoareTripleChecker+Invalid, 4415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1721 IncrementalHoareTripleChecker+Valid, 2694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2021-12-22 14:42:32,332 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5357 Valid, 9178 Invalid, 4415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1721 Valid, 2694 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2021-12-22 14:42:32,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10096 states. [2021-12-22 14:42:32,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10096 to 9627. [2021-12-22 14:42:32,712 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) [2021-12-22 14:42:32,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9627 states to 9627 states and 13638 transitions. [2021-12-22 14:42:32,761 INFO L78 Accepts]: Start accepts. Automaton has 9627 states and 13638 transitions. Word has length 213 [2021-12-22 14:42:32,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:42:32,762 INFO L470 AbstractCegarLoop]: Abstraction has 9627 states and 13638 transitions. [2021-12-22 14:42:32,763 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) [2021-12-22 14:42:32,763 INFO L276 IsEmpty]: Start isEmpty. Operand 9627 states and 13638 transitions. [2021-12-22 14:42:32,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2021-12-22 14:42:32,767 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:42:32,768 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] [2021-12-22 14:42:32,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-22 14:42:32,768 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:42:32,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:42:32,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1347570925, now seen corresponding path program 1 times [2021-12-22 14:42:32,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:42:32,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625055487] [2021-12-22 14:42:32,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:42:32,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:42:32,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:33,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:42:33,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:33,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 14:42:33,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:33,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 14:42:33,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:33,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-22 14:42:33,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:33,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-22 14:42:33,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:33,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 14:42:33,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:33,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 14:42:33,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:33,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-22 14:42:33,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:33,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 14:42:33,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:33,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-22 14:42:33,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:33,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-22 14:42:33,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:33,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-22 14:42:33,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:33,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-22 14:42:33,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:33,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-22 14:42:33,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:33,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-22 14:42:33,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:33,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-22 14:42:33,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:33,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-22 14:42:33,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:33,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-22 14:42:33,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:33,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-22 14:42:33,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:33,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-22 14:42:33,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:33,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-22 14:42:33,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:33,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-22 14:42:33,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:33,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-22 14:42:33,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:33,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-22 14:42:33,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:33,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-22 14:42:33,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:33,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-22 14:42:33,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:33,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-22 14:42:33,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:33,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-22 14:42:33,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:33,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-22 14:42:33,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:33,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-22 14:42:33,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:33,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-22 14:42:33,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:33,228 INFO L134 CoverageAnalysis]: Checked inductivity of 1516 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1516 trivial. 0 not checked. [2021-12-22 14:42:33,228 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:42:33,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625055487] [2021-12-22 14:42:33,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625055487] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:42:33,229 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:42:33,229 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 14:42:33,229 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306529323] [2021-12-22 14:42:33,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:42:33,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 14:42:33,229 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:42:33,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 14:42:33,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-22 14:42:33,230 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) [2021-12-22 14:42:38,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:42:38,942 INFO L93 Difference]: Finished difference Result 27017 states and 38426 transitions. [2021-12-22 14:42:38,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 14:42:38,943 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 [2021-12-22 14:42:38,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:42:39,037 INFO L225 Difference]: With dead ends: 27017 [2021-12-22 14:42:39,037 INFO L226 Difference]: Without dead ends: 17449 [2021-12-22 14:42:39,077 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 [2021-12-22 14:42:39,078 INFO L933 BasicCegarLoop]: 6210 mSDtfsCounter, 4091 mSDsluCounter, 5136 mSDsCounter, 0 mSdLazyCounter, 3037 mSolverCounterSat, 1382 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s 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, 5.1s IncrementalHoareTripleChecker+Time [2021-12-22 14:42:39,079 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4670 Valid, 11346 Invalid, 4419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1382 Valid, 3037 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2021-12-22 14:42:39,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17449 states. [2021-12-22 14:42:39,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17449 to 16622. [2021-12-22 14:42:39,528 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) [2021-12-22 14:42:39,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16622 states to 16622 states and 23411 transitions. [2021-12-22 14:42:39,594 INFO L78 Accepts]: Start accepts. Automaton has 16622 states and 23411 transitions. Word has length 220 [2021-12-22 14:42:39,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:42:39,595 INFO L470 AbstractCegarLoop]: Abstraction has 16622 states and 23411 transitions. [2021-12-22 14:42:39,596 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) [2021-12-22 14:42:39,596 INFO L276 IsEmpty]: Start isEmpty. Operand 16622 states and 23411 transitions. [2021-12-22 14:42:39,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2021-12-22 14:42:39,611 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:42:39,612 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] [2021-12-22 14:42:39,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-22 14:42:39,612 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:42:39,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:42:39,613 INFO L85 PathProgramCache]: Analyzing trace with hash -1196821462, now seen corresponding path program 1 times [2021-12-22 14:42:39,613 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:42:39,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608594323] [2021-12-22 14:42:39,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:42:39,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:42:39,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:39,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:42:39,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:39,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 14:42:39,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:39,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 14:42:39,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:39,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-22 14:42:39,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:39,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-22 14:42:39,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:39,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 14:42:39,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:39,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 14:42:39,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:39,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-22 14:42:40,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:40,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 14:42:40,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:40,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-22 14:42:40,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:40,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-22 14:42:40,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:40,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-22 14:42:40,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:40,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-22 14:42:40,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:40,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-22 14:42:40,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:40,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-22 14:42:40,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:40,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-22 14:42:40,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:40,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-22 14:42:40,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:40,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-22 14:42:40,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:40,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-22 14:42:40,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:40,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-22 14:42:40,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:40,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-22 14:42:40,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:40,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-22 14:42:40,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:40,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-22 14:42:40,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:40,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-22 14:42:40,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:40,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-22 14:42:40,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:40,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-22 14:42:40,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:40,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-22 14:42:40,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:40,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-22 14:42:40,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:40,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-22 14:42:40,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:40,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-22 14:42:40,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:40,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-12-22 14:42:40,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:40,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-22 14:42:40,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:40,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-22 14:42:40,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:40,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-12-22 14:42:40,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:40,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-12-22 14:42:40,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:40,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-12-22 14:42:40,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:40,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-12-22 14:42:40,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:40,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-12-22 14:42:40,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:40,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-12-22 14:42:40,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:40,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-12-22 14:42:40,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:40,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2021-12-22 14:42:40,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:40,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2021-12-22 14:42:40,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:40,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2021-12-22 14:42:40,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:40,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-12-22 14:42:40,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:40,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2021-12-22 14:42:40,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:40,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2021-12-22 14:42:40,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:40,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2021-12-22 14:42:40,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:40,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2021-12-22 14:42:40,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:40,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2021-12-22 14:42:40,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:40,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2021-12-22 14:42:40,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:40,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2021-12-22 14:42:40,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:40,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2021-12-22 14:42:40,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:40,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2021-12-22 14:42:40,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:40,527 INFO L134 CoverageAnalysis]: Checked inductivity of 4908 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4908 trivial. 0 not checked. [2021-12-22 14:42:40,527 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:42:40,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608594323] [2021-12-22 14:42:40,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608594323] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:42:40,528 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:42:40,528 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 14:42:40,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975822510] [2021-12-22 14:42:40,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:42:40,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 14:42:40,528 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:42:40,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 14:42:40,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-22 14:42:40,529 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) [2021-12-22 14:42:45,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:42:45,046 INFO L93 Difference]: Finished difference Result 29009 states and 41217 transitions. [2021-12-22 14:42:45,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 14:42:45,047 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 [2021-12-22 14:42:45,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:42:45,238 INFO L225 Difference]: With dead ends: 29009 [2021-12-22 14:42:45,238 INFO L226 Difference]: Without dead ends: 29006 [2021-12-22 14:42:45,263 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 [2021-12-22 14:42:45,265 INFO L933 BasicCegarLoop]: 4311 mSDtfsCounter, 3963 mSDsluCounter, 4064 mSDsCounter, 0 mSdLazyCounter, 2385 mSolverCounterSat, 1485 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4316 SdHoareTripleChecker+Valid, 8375 SdHoareTripleChecker+Invalid, 3870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1485 IncrementalHoareTripleChecker+Valid, 2385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2021-12-22 14:42:45,266 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4316 Valid, 8375 Invalid, 3870 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1485 Valid, 2385 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2021-12-22 14:42:45,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29006 states. [2021-12-22 14:42:46,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29006 to 27409. [2021-12-22 14:42:46,157 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) [2021-12-22 14:42:46,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27409 states to 27409 states and 38426 transitions. [2021-12-22 14:42:46,276 INFO L78 Accepts]: Start accepts. Automaton has 27409 states and 38426 transitions. Word has length 370 [2021-12-22 14:42:46,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:42:46,277 INFO L470 AbstractCegarLoop]: Abstraction has 27409 states and 38426 transitions. [2021-12-22 14:42:46,278 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) [2021-12-22 14:42:46,278 INFO L276 IsEmpty]: Start isEmpty. Operand 27409 states and 38426 transitions. [2021-12-22 14:42:46,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2021-12-22 14:42:46,334 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:42:46,335 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] [2021-12-22 14:42:46,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-22 14:42:46,336 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:42:46,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:42:46,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1958315436, now seen corresponding path program 1 times [2021-12-22 14:42:46,337 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:42:46,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940115162] [2021-12-22 14:42:46,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:42:46,338 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:42:46,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:46,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:42:46,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:46,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 14:42:46,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:46,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 14:42:46,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:46,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-22 14:42:46,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:46,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-22 14:42:46,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:46,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 14:42:46,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:46,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 14:42:46,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:46,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-22 14:42:46,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:46,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 14:42:46,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:46,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-22 14:42:46,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:46,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-22 14:42:46,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:46,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-22 14:42:46,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:46,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-22 14:42:46,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:46,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-22 14:42:46,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:46,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-22 14:42:46,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:46,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-22 14:42:46,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:46,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-22 14:42:46,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:46,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-22 14:42:46,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:46,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-22 14:42:46,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:46,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-22 14:42:46,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:46,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-22 14:42:46,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:46,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-22 14:42:46,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:46,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-22 14:42:46,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:46,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-22 14:42:46,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:46,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-22 14:42:46,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:46,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-22 14:42:46,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:46,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-22 14:42:46,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:46,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-22 14:42:46,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:46,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-22 14:42:46,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:46,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-22 14:42:46,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:46,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-12-22 14:42:46,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:46,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-22 14:42:46,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:46,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-22 14:42:46,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:46,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-12-22 14:42:46,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:46,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-12-22 14:42:46,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:46,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-12-22 14:42:46,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:46,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-12-22 14:42:46,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:46,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-12-22 14:42:46,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:46,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-12-22 14:42:46,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:46,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-12-22 14:42:46,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:46,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2021-12-22 14:42:46,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:46,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2021-12-22 14:42:46,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:46,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2021-12-22 14:42:46,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:46,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-12-22 14:42:46,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:46,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2021-12-22 14:42:46,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:46,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2021-12-22 14:42:46,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:46,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2021-12-22 14:42:46,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:46,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2021-12-22 14:42:46,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:46,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2021-12-22 14:42:46,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:46,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2021-12-22 14:42:46,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:46,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2021-12-22 14:42:46,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:46,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:42:46,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:46,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2021-12-22 14:42:46,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:46,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2021-12-22 14:42:46,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:46,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2021-12-22 14:42:46,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:46,954 INFO L134 CoverageAnalysis]: Checked inductivity of 4915 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4911 trivial. 0 not checked. [2021-12-22 14:42:46,954 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:42:46,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940115162] [2021-12-22 14:42:46,955 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940115162] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:42:46,955 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:42:46,955 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 14:42:46,955 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624496580] [2021-12-22 14:42:46,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:42:46,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 14:42:46,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:42:46,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 14:42:46,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 14:42:46,956 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) [2021-12-22 14:42:55,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:42:55,427 INFO L93 Difference]: Finished difference Result 86833 states and 123019 transitions. [2021-12-22 14:42:55,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-22 14:42:55,427 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 395 [2021-12-22 14:42:55,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:42:55,711 INFO L225 Difference]: With dead ends: 86833 [2021-12-22 14:42:55,711 INFO L226 Difference]: Without dead ends: 59492 [2021-12-22 14:42:55,807 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-22 14:42:55,807 INFO L933 BasicCegarLoop]: 6935 mSDtfsCounter, 5314 mSDsluCounter, 8214 mSDsCounter, 0 mSdLazyCounter, 4889 mSolverCounterSat, 2998 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5948 SdHoareTripleChecker+Valid, 15149 SdHoareTripleChecker+Invalid, 7887 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2998 IncrementalHoareTripleChecker+Valid, 4889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2021-12-22 14:42:55,808 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5948 Valid, 15149 Invalid, 7887 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2998 Valid, 4889 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2021-12-22 14:42:55,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59492 states. [2021-12-22 14:42:57,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59492 to 56839. [2021-12-22 14:42:57,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56839 states, 40193 states have (on average 1.3439156071952827) internal successors, (54016), 42145 states have internal predecessors, (54016), 12502 states have call successors, (12502), 3926 states have call predecessors, (12502), 4143 states have return successors, (13443), 12193 states have call predecessors, (13443), 12501 states have call successors, (13443) [2021-12-22 14:42:57,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56839 states to 56839 states and 79961 transitions. [2021-12-22 14:42:58,007 INFO L78 Accepts]: Start accepts. Automaton has 56839 states and 79961 transitions. Word has length 395 [2021-12-22 14:42:58,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:42:58,008 INFO L470 AbstractCegarLoop]: Abstraction has 56839 states and 79961 transitions. [2021-12-22 14:42:58,010 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2021-12-22 14:42:58,010 INFO L276 IsEmpty]: Start isEmpty. Operand 56839 states and 79961 transitions. [2021-12-22 14:42:58,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2021-12-22 14:42:58,088 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:42:58,088 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] [2021-12-22 14:42:58,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-22 14:42:58,089 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:42:58,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:42:58,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1060922158, now seen corresponding path program 1 times [2021-12-22 14:42:58,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:42:58,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792216892] [2021-12-22 14:42:58,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:42:58,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:42:58,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:58,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:42:58,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:58,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 14:42:58,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:58,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 14:42:58,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:58,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-22 14:42:58,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:58,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-22 14:42:58,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:58,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 14:42:58,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:58,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 14:42:58,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:58,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-22 14:42:58,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:58,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 14:42:58,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:58,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-22 14:42:58,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:58,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-22 14:42:58,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:58,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-22 14:42:58,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:58,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-22 14:42:58,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:58,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-22 14:42:58,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:58,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-22 14:42:58,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:58,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-22 14:42:58,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:58,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-22 14:42:58,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:58,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-22 14:42:58,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:58,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-22 14:42:58,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:58,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-22 14:42:58,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:58,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-22 14:42:58,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:58,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-22 14:42:58,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:58,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-22 14:42:58,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:58,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-22 14:42:58,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:58,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-22 14:42:58,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:58,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-22 14:42:58,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:58,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-22 14:42:58,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:58,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-22 14:42:58,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:58,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-22 14:42:58,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:58,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-22 14:42:58,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:58,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-12-22 14:42:58,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:58,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-22 14:42:58,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:58,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-22 14:42:58,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:58,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-12-22 14:42:58,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:58,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-12-22 14:42:58,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:58,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-12-22 14:42:58,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:58,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-12-22 14:42:58,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:58,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-12-22 14:42:58,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:58,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-12-22 14:42:58,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:58,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-12-22 14:42:58,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:58,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2021-12-22 14:42:58,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:58,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2021-12-22 14:42:58,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:58,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2021-12-22 14:42:58,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:58,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-12-22 14:42:58,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:58,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2021-12-22 14:42:58,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:58,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2021-12-22 14:42:58,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:58,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2021-12-22 14:42:58,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:59,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2021-12-22 14:42:59,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:59,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2021-12-22 14:42:59,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:59,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2021-12-22 14:42:59,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:59,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2021-12-22 14:42:59,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:59,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:42:59,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:59,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2021-12-22 14:42:59,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:59,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2021-12-22 14:42:59,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:59,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2021-12-22 14:42:59,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:59,115 INFO L134 CoverageAnalysis]: Checked inductivity of 4915 backedges. 96 proven. 13 refuted. 0 times theorem prover too weak. 4806 trivial. 0 not checked. [2021-12-22 14:42:59,116 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:42:59,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792216892] [2021-12-22 14:42:59,117 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792216892] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 14:42:59,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [162155531] [2021-12-22 14:42:59,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:42:59,117 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 14:42:59,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:42:59,135 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 14:42:59,169 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-22 14:43:00,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:43:00,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 4042 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-22 14:43:00,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 14:43:00,896 INFO L134 CoverageAnalysis]: Checked inductivity of 4915 backedges. 2473 proven. 0 refuted. 0 times theorem prover too weak. 2442 trivial. 0 not checked. [2021-12-22 14:43:00,896 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 14:43:00,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [162155531] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:43:00,897 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-22 14:43:00,897 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [14] total 17 [2021-12-22 14:43:00,897 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325208089] [2021-12-22 14:43:00,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:43:00,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 14:43:00,898 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:43:00,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 14:43:00,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2021-12-22 14:43:00,898 INFO L87 Difference]: Start difference. First operand 56839 states and 79961 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 5 states have internal predecessors, (133), 2 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2021-12-22 14:43:02,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:43:02,531 INFO L93 Difference]: Finished difference Result 113742 states and 159987 transitions. [2021-12-22 14:43:02,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-22 14:43:02,531 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 5 states have internal predecessors, (133), 2 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) Word has length 395 [2021-12-22 14:43:02,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:43:02,735 INFO L225 Difference]: With dead ends: 113742 [2021-12-22 14:43:02,736 INFO L226 Difference]: Without dead ends: 56811 [2021-12-22 14:43:02,866 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 517 GetRequests, 500 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2021-12-22 14:43:02,868 INFO L933 BasicCegarLoop]: 3886 mSDtfsCounter, 6 mSDsluCounter, 11653 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 15539 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-22 14:43:02,868 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 15539 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-22 14:43:02,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56811 states.