./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--char--lp.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 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-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--char--lp.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 96a9bd06c2a0348ab1a93991deedda2ae571d70e4f7fb0e32175d69384f432c0 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 01:12:45,332 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 01:12:45,334 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 01:12:45,370 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 01:12:45,371 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 01:12:45,372 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 01:12:45,373 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 01:12:45,375 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 01:12:45,377 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 01:12:45,380 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 01:12:45,381 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 01:12:45,383 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 01:12:45,383 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 01:12:45,384 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 01:12:45,385 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 01:12:45,387 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 01:12:45,388 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 01:12:45,389 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 01:12:45,390 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 01:12:45,394 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 01:12:45,396 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 01:12:45,396 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 01:12:45,397 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 01:12:45,398 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 01:12:45,399 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 01:12:45,404 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 01:12:45,405 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 01:12:45,405 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 01:12:45,406 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 01:12:45,407 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 01:12:45,408 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 01:12:45,408 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 01:12:45,409 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 01:12:45,409 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 01:12:45,410 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 01:12:45,411 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 01:12:45,411 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 01:12:45,411 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 01:12:45,411 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 01:12:45,411 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 01:12:45,412 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 01:12:45,413 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 01:12:45,415 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-14 01:12:45,438 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 01:12:45,439 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 01:12:45,439 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 01:12:45,439 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 01:12:45,440 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 01:12:45,440 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 01:12:45,441 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 01:12:45,441 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 01:12:45,441 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 01:12:45,442 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 01:12:45,442 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 01:12:45,442 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 01:12:45,442 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 01:12:45,442 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 01:12:45,442 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 01:12:45,442 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 01:12:45,443 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 01:12:45,443 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 01:12:45,444 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 01:12:45,444 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 01:12:45,444 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 01:12:45,444 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 01:12:45,444 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 01:12:45,444 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 01:12:45,445 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 01:12:45,445 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 01:12:45,445 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 01:12:45,445 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 01:12:45,445 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 01:12:45,445 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 01:12:45,446 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 96a9bd06c2a0348ab1a93991deedda2ae571d70e4f7fb0e32175d69384f432c0 [2022-07-14 01:12:45,641 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 01:12:45,658 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 01:12:45,660 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 01:12:45,660 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 01:12:45,661 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 01:12:45,662 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--char--lp.ko-entry_point.cil.out.i [2022-07-14 01:12:45,720 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a08f2ebc/1693d25df0df416da7621c21f3d49a60/FLAG7b4447abf [2022-07-14 01:12:46,285 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 01:12:46,285 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--char--lp.ko-entry_point.cil.out.i [2022-07-14 01:12:46,305 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a08f2ebc/1693d25df0df416da7621c21f3d49a60/FLAG7b4447abf [2022-07-14 01:12:46,758 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a08f2ebc/1693d25df0df416da7621c21f3d49a60 [2022-07-14 01:12:46,760 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 01:12:46,761 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 01:12:46,764 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 01:12:46,764 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 01:12:46,766 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 01:12:46,766 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 01:12:46" (1/1) ... [2022-07-14 01:12:46,767 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30e1a8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:12:46, skipping insertion in model container [2022-07-14 01:12:46,767 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 01:12:46" (1/1) ... [2022-07-14 01:12:46,773 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 01:12:46,826 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 01:12:47,748 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--char--lp.ko-entry_point.cil.out.i[147706,147719] [2022-07-14 01:12:47,840 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 01:12:47,876 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 01:12:48,057 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-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--char--lp.ko-entry_point.cil.out.i[147706,147719] [2022-07-14 01:12:48,075 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 01:12:48,118 INFO L208 MainTranslator]: Completed translation [2022-07-14 01:12:48,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:12:48 WrapperNode [2022-07-14 01:12:48,120 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 01:12:48,121 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 01:12:48,121 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 01:12:48,121 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 01:12:48,126 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:12:48" (1/1) ... [2022-07-14 01:12:48,168 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:12:48" (1/1) ... [2022-07-14 01:12:48,235 INFO L137 Inliner]: procedures = 222, calls = 859, calls flagged for inlining = 79, calls inlined = 74, statements flattened = 2375 [2022-07-14 01:12:48,237 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 01:12:48,238 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 01:12:48,238 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 01:12:48,238 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 01:12:48,244 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:12:48" (1/1) ... [2022-07-14 01:12:48,244 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:12:48" (1/1) ... [2022-07-14 01:12:48,254 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:12:48" (1/1) ... [2022-07-14 01:12:48,254 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:12:48" (1/1) ... [2022-07-14 01:12:48,292 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:12:48" (1/1) ... [2022-07-14 01:12:48,299 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:12:48" (1/1) ... [2022-07-14 01:12:48,308 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:12:48" (1/1) ... [2022-07-14 01:12:48,336 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 01:12:48,337 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 01:12:48,337 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 01:12:48,337 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 01:12:48,341 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:12:48" (1/1) ... [2022-07-14 01:12:48,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 01:12:48,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 01:12:48,366 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) [2022-07-14 01:12:48,372 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 [2022-07-14 01:12:48,399 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_port_mutex_of_lp_struct [2022-07-14 01:12:48,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_port_mutex_of_lp_struct [2022-07-14 01:12:48,399 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-07-14 01:12:48,399 INFO L130 BoogieDeclarations]: Found specification of procedure lp_error [2022-07-14 01:12:48,399 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_error [2022-07-14 01:12:48,399 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-14 01:12:48,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-14 01:12:48,400 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-14 01:12:48,400 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-14 01:12:48,400 INFO L130 BoogieDeclarations]: Found specification of procedure lp_register [2022-07-14 01:12:48,400 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_register [2022-07-14 01:12:48,400 INFO L130 BoogieDeclarations]: Found specification of procedure file_inode [2022-07-14 01:12:48,400 INFO L138 BoogieDeclarations]: Found implementation of procedure file_inode [2022-07-14 01:12:48,400 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-14 01:12:48,400 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-14 01:12:48,401 INFO L130 BoogieDeclarations]: Found specification of procedure lp_release_parport [2022-07-14 01:12:48,401 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_release_parport [2022-07-14 01:12:48,401 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-14 01:12:48,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-14 01:12:48,401 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-14 01:12:48,401 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-14 01:12:48,401 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-14 01:12:48,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-14 01:12:48,402 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-14 01:12:48,402 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-14 01:12:48,402 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-07-14 01:12:48,402 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-07-14 01:12:48,402 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-07-14 01:12:48,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-07-14 01:12:48,402 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_port_mutex_of_lp_struct [2022-07-14 01:12:48,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_port_mutex_of_lp_struct [2022-07-14 01:12:48,402 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 01:12:48,403 INFO L130 BoogieDeclarations]: Found specification of procedure lp_set_timeout [2022-07-14 01:12:48,403 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_set_timeout [2022-07-14 01:12:48,403 INFO L130 BoogieDeclarations]: Found specification of procedure lp_reset [2022-07-14 01:12:48,403 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_reset [2022-07-14 01:12:48,403 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_25 [2022-07-14 01:12:48,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_25 [2022-07-14 01:12:48,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-14 01:12:48,403 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-14 01:12:48,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-14 01:12:48,404 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-07-14 01:12:48,404 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-07-14 01:12:48,404 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2022-07-14 01:12:48,404 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2022-07-14 01:12:48,404 INFO L130 BoogieDeclarations]: Found specification of procedure parport_write [2022-07-14 01:12:48,405 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_write [2022-07-14 01:12:48,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 01:12:48,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-14 01:12:48,447 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2022-07-14 01:12:48,447 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2022-07-14 01:12:48,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lp_mutex [2022-07-14 01:12:48,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lp_mutex [2022-07-14 01:12:48,448 INFO L130 BoogieDeclarations]: Found specification of procedure test_ti_thread_flag [2022-07-14 01:12:48,448 INFO L138 BoogieDeclarations]: Found implementation of procedure test_ti_thread_flag [2022-07-14 01:12:48,448 INFO L130 BoogieDeclarations]: Found specification of procedure parport_negotiate [2022-07-14 01:12:48,448 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_negotiate [2022-07-14 01:12:48,448 INFO L130 BoogieDeclarations]: Found specification of procedure parport_release [2022-07-14 01:12:48,448 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_release [2022-07-14 01:12:48,448 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_console [2022-07-14 01:12:48,449 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_console [2022-07-14 01:12:48,449 INFO L130 BoogieDeclarations]: Found specification of procedure parport_set_timeout [2022-07-14 01:12:48,449 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_set_timeout [2022-07-14 01:12:48,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-14 01:12:48,449 INFO L130 BoogieDeclarations]: Found specification of procedure parport_claim_or_block [2022-07-14 01:12:48,449 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_claim_or_block [2022-07-14 01:12:48,449 INFO L130 BoogieDeclarations]: Found specification of procedure lp_do_ioctl [2022-07-14 01:12:48,449 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_do_ioctl [2022-07-14 01:12:48,449 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2022-07-14 01:12:48,449 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2022-07-14 01:12:48,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-14 01:12:48,449 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-07-14 01:12:48,449 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-07-14 01:12:48,449 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-14 01:12:48,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-14 01:12:48,449 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-14 01:12:48,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-14 01:12:48,449 INFO L130 BoogieDeclarations]: Found specification of procedure lp_claim_parport_or_block [2022-07-14 01:12:48,449 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_claim_parport_or_block [2022-07-14 01:12:48,450 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2022-07-14 01:12:48,450 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2022-07-14 01:12:48,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-14 01:12:48,450 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-07-14 01:12:48,450 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-07-14 01:12:48,450 INFO L130 BoogieDeclarations]: Found specification of procedure memchr [2022-07-14 01:12:48,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-14 01:12:48,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-14 01:12:48,450 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-07-14 01:12:48,450 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-07-14 01:12:48,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 01:12:48,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-14 01:12:48,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-14 01:12:48,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-14 01:12:48,450 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-14 01:12:48,450 INFO L130 BoogieDeclarations]: Found specification of procedure lp_detach [2022-07-14 01:12:48,450 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_detach [2022-07-14 01:12:48,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lp_mutex [2022-07-14 01:12:48,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lp_mutex [2022-07-14 01:12:48,451 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-07-14 01:12:48,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-07-14 01:12:48,451 INFO L130 BoogieDeclarations]: Found specification of procedure lp_negotiate [2022-07-14 01:12:48,451 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_negotiate [2022-07-14 01:12:48,451 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2022-07-14 01:12:48,451 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2022-07-14 01:12:48,451 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2022-07-14 01:12:48,451 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2022-07-14 01:12:48,451 INFO L130 BoogieDeclarations]: Found specification of procedure lp_wait_ready [2022-07-14 01:12:48,451 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_wait_ready [2022-07-14 01:12:48,451 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-07-14 01:12:48,451 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-07-14 01:12:48,451 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2022-07-14 01:12:48,451 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2022-07-14 01:12:48,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 01:12:48,451 INFO L130 BoogieDeclarations]: Found specification of procedure lp_write [2022-07-14 01:12:48,451 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_write [2022-07-14 01:12:48,451 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2022-07-14 01:12:48,452 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2022-07-14 01:12:48,452 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-07-14 01:12:48,452 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-07-14 01:12:48,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 01:12:48,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 01:12:48,452 INFO L130 BoogieDeclarations]: Found specification of procedure parport_yield_blocking [2022-07-14 01:12:48,452 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_yield_blocking [2022-07-14 01:12:48,452 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-14 01:12:48,452 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-14 01:12:48,857 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 01:12:48,861 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 01:12:49,049 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-14 01:12:50,002 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 01:12:50,018 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 01:12:50,018 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-14 01:12:50,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 01:12:50 BoogieIcfgContainer [2022-07-14 01:12:50,021 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 01:12:50,023 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 01:12:50,023 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 01:12:50,026 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 01:12:50,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 01:12:46" (1/3) ... [2022-07-14 01:12:50,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@734eaa1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 01:12:50, skipping insertion in model container [2022-07-14 01:12:50,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:12:48" (2/3) ... [2022-07-14 01:12:50,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@734eaa1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 01:12:50, skipping insertion in model container [2022-07-14 01:12:50,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 01:12:50" (3/3) ... [2022-07-14 01:12:50,028 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--char--lp.ko-entry_point.cil.out.i [2022-07-14 01:12:50,038 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 01:12:50,039 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-14 01:12:50,100 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 01:12:50,104 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7c1e4bd3, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@643cf908 [2022-07-14 01:12:50,104 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-14 01:12:50,110 INFO L276 IsEmpty]: Start isEmpty. Operand has 836 states, 594 states have (on average 1.3653198653198653) internal successors, (811), 616 states have internal predecessors, (811), 186 states have call successors, (186), 55 states have call predecessors, (186), 54 states have return successors, (181), 181 states have call predecessors, (181), 181 states have call successors, (181) [2022-07-14 01:12:50,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-07-14 01:12:50,131 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:12:50,132 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:12:50,132 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:12:50,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:12:50,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1568387218, now seen corresponding path program 1 times [2022-07-14 01:12:50,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:12:50,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473237987] [2022-07-14 01:12:50,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:12:50,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:12:50,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:50,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:12:50,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:50,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:12:50,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:50,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:12:50,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:50,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:12:50,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:50,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:12:50,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:50,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:12:50,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:50,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 01:12:50,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:50,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:12:50,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:50,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:12:50,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:50,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 01:12:50,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:50,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:12:50,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:50,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:12:50,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:50,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 01:12:50,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:50,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:12:50,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:50,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:12:50,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:50,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-14 01:12:50,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:50,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:12:50,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:50,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:12:50,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:50,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-14 01:12:50,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:50,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-14 01:12:50,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:50,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-14 01:12:50,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:50,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-14 01:12:50,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:50,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-14 01:12:50,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:50,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-14 01:12:50,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:50,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-14 01:12:50,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:50,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-14 01:12:50,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:50,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-14 01:12:50,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:50,822 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2022-07-14 01:12:50,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:12:50,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473237987] [2022-07-14 01:12:50,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473237987] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:12:50,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:12:50,824 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 01:12:50,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42984565] [2022-07-14 01:12:50,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:12:50,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 01:12:50,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:12:50,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 01:12:50,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 01:12:50,856 INFO L87 Difference]: Start difference. First operand has 836 states, 594 states have (on average 1.3653198653198653) internal successors, (811), 616 states have internal predecessors, (811), 186 states have call successors, (186), 55 states have call predecessors, (186), 54 states have return successors, (181), 181 states have call predecessors, (181), 181 states have call successors, (181) Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-14 01:12:51,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:12:51,855 INFO L93 Difference]: Finished difference Result 1703 states and 2447 transitions. [2022-07-14 01:12:51,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 01:12:51,857 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 180 [2022-07-14 01:12:51,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:12:51,869 INFO L225 Difference]: With dead ends: 1703 [2022-07-14 01:12:51,870 INFO L226 Difference]: Without dead ends: 860 [2022-07-14 01:12:51,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-07-14 01:12:51,878 INFO L413 NwaCegarLoop]: 1083 mSDtfsCounter, 759 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 684 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 769 SdHoareTripleChecker+Valid, 1628 SdHoareTripleChecker+Invalid, 985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 684 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-14 01:12:51,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [769 Valid, 1628 Invalid, 985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [684 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-14 01:12:51,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 860 states. [2022-07-14 01:12:51,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 860 to 824. [2022-07-14 01:12:51,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 824 states, 589 states have (on average 1.3548387096774193) internal successors, (798), 604 states have internal predecessors, (798), 181 states have call successors, (181), 54 states have call predecessors, (181), 53 states have return successors, (172), 172 states have call predecessors, (172), 172 states have call successors, (172) [2022-07-14 01:12:51,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 824 states to 824 states and 1151 transitions. [2022-07-14 01:12:51,952 INFO L78 Accepts]: Start accepts. Automaton has 824 states and 1151 transitions. Word has length 180 [2022-07-14 01:12:51,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:12:51,953 INFO L495 AbstractCegarLoop]: Abstraction has 824 states and 1151 transitions. [2022-07-14 01:12:51,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-14 01:12:51,953 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 1151 transitions. [2022-07-14 01:12:51,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-07-14 01:12:51,956 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:12:51,957 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:12:51,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-14 01:12:51,957 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:12:51,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:12:51,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1316851578, now seen corresponding path program 1 times [2022-07-14 01:12:51,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:12:51,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266854445] [2022-07-14 01:12:51,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:12:51,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:12:52,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:52,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:12:52,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:52,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:12:52,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:52,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:12:52,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:52,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:12:52,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:52,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:12:52,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:52,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:12:52,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:52,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 01:12:52,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:52,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:12:52,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:52,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:12:52,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:52,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 01:12:52,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:52,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:12:52,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:52,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:12:52,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:52,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 01:12:52,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:52,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:12:52,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:52,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:12:52,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:52,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-14 01:12:52,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:52,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:12:52,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:52,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:12:52,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:52,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-14 01:12:52,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:52,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-14 01:12:52,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:52,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-14 01:12:52,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:52,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-14 01:12:52,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:52,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-14 01:12:52,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:52,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-14 01:12:52,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:52,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-14 01:12:52,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:52,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-14 01:12:52,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:52,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-14 01:12:52,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:52,282 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2022-07-14 01:12:52,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:12:52,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266854445] [2022-07-14 01:12:52,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266854445] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:12:52,283 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:12:52,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-14 01:12:52,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851111461] [2022-07-14 01:12:52,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:12:52,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-14 01:12:52,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:12:52,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 01:12:52,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-14 01:12:52,286 INFO L87 Difference]: Start difference. First operand 824 states and 1151 transitions. Second operand has 8 states, 8 states have (on average 6.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-07-14 01:12:54,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:12:54,377 INFO L93 Difference]: Finished difference Result 2290 states and 3338 transitions. [2022-07-14 01:12:54,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-14 01:12:54,378 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 180 [2022-07-14 01:12:54,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:12:54,386 INFO L225 Difference]: With dead ends: 2290 [2022-07-14 01:12:54,386 INFO L226 Difference]: Without dead ends: 1504 [2022-07-14 01:12:54,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-07-14 01:12:54,389 INFO L413 NwaCegarLoop]: 1643 mSDtfsCounter, 2375 mSDsluCounter, 3962 mSDsCounter, 0 mSdLazyCounter, 1977 mSolverCounterSat, 953 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2495 SdHoareTripleChecker+Valid, 5605 SdHoareTripleChecker+Invalid, 2930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 953 IncrementalHoareTripleChecker+Valid, 1977 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-07-14 01:12:54,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2495 Valid, 5605 Invalid, 2930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [953 Valid, 1977 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-07-14 01:12:54,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1504 states. [2022-07-14 01:12:54,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1504 to 828. [2022-07-14 01:12:54,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 828 states, 593 states have (on average 1.3524451939291737) internal successors, (802), 608 states have internal predecessors, (802), 181 states have call successors, (181), 54 states have call predecessors, (181), 53 states have return successors, (172), 172 states have call predecessors, (172), 172 states have call successors, (172) [2022-07-14 01:12:54,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 828 states to 828 states and 1155 transitions. [2022-07-14 01:12:54,435 INFO L78 Accepts]: Start accepts. Automaton has 828 states and 1155 transitions. Word has length 180 [2022-07-14 01:12:54,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:12:54,436 INFO L495 AbstractCegarLoop]: Abstraction has 828 states and 1155 transitions. [2022-07-14 01:12:54,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-07-14 01:12:54,436 INFO L276 IsEmpty]: Start isEmpty. Operand 828 states and 1155 transitions. [2022-07-14 01:12:54,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-07-14 01:12:54,438 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:12:54,440 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:12:54,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-14 01:12:54,440 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:12:54,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:12:54,441 INFO L85 PathProgramCache]: Analyzing trace with hash -839665190, now seen corresponding path program 1 times [2022-07-14 01:12:54,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:12:54,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701573908] [2022-07-14 01:12:54,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:12:54,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:12:54,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:54,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:12:54,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:54,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:12:54,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:54,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:12:54,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:54,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:12:54,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:54,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:12:54,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:54,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:12:54,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:54,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 01:12:54,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:54,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:12:54,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:54,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:12:54,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:54,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 01:12:54,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:54,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:12:54,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:54,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:12:54,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:54,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 01:12:54,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:54,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:12:54,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:54,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:12:54,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:54,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-14 01:12:54,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:54,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:12:54,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:54,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:12:54,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:54,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-14 01:12:54,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:54,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-14 01:12:54,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:54,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-14 01:12:54,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:54,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-14 01:12:54,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:54,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-14 01:12:54,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:54,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-14 01:12:54,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:54,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-14 01:12:54,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:54,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-14 01:12:54,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:54,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-14 01:12:54,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:54,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-07-14 01:12:54,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:54,683 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2022-07-14 01:12:54,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:12:54,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701573908] [2022-07-14 01:12:54,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701573908] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:12:54,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:12:54,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 01:12:54,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289466062] [2022-07-14 01:12:54,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:12:54,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 01:12:54,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:12:54,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 01:12:54,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-14 01:12:54,685 INFO L87 Difference]: Start difference. First operand 828 states and 1155 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-14 01:12:56,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:12:56,309 INFO L93 Difference]: Finished difference Result 1918 states and 2663 transitions. [2022-07-14 01:12:56,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 01:12:56,310 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 184 [2022-07-14 01:12:56,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:12:56,320 INFO L225 Difference]: With dead ends: 1918 [2022-07-14 01:12:56,321 INFO L226 Difference]: Without dead ends: 1128 [2022-07-14 01:12:56,323 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-14 01:12:56,324 INFO L413 NwaCegarLoop]: 1083 mSDtfsCounter, 979 mSDsluCounter, 2188 mSDsCounter, 0 mSdLazyCounter, 1190 mSolverCounterSat, 573 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1011 SdHoareTripleChecker+Valid, 3271 SdHoareTripleChecker+Invalid, 1763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 573 IncrementalHoareTripleChecker+Valid, 1190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-14 01:12:56,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1011 Valid, 3271 Invalid, 1763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [573 Valid, 1190 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-14 01:12:56,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2022-07-14 01:12:56,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 1059. [2022-07-14 01:12:56,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1059 states, 773 states have (on average 1.3557567917205693) internal successors, (1048), 790 states have internal predecessors, (1048), 210 states have call successors, (210), 76 states have call predecessors, (210), 75 states have return successors, (201), 200 states have call predecessors, (201), 201 states have call successors, (201) [2022-07-14 01:12:56,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1059 states to 1059 states and 1459 transitions. [2022-07-14 01:12:56,362 INFO L78 Accepts]: Start accepts. Automaton has 1059 states and 1459 transitions. Word has length 184 [2022-07-14 01:12:56,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:12:56,363 INFO L495 AbstractCegarLoop]: Abstraction has 1059 states and 1459 transitions. [2022-07-14 01:12:56,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-14 01:12:56,365 INFO L276 IsEmpty]: Start isEmpty. Operand 1059 states and 1459 transitions. [2022-07-14 01:12:56,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-07-14 01:12:56,367 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:12:56,367 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:12:56,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-14 01:12:56,367 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:12:56,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:12:56,368 INFO L85 PathProgramCache]: Analyzing trace with hash -104390022, now seen corresponding path program 1 times [2022-07-14 01:12:56,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:12:56,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382039340] [2022-07-14 01:12:56,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:12:56,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:12:56,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:56,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:12:56,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:56,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:12:56,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:56,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:12:56,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:56,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:12:56,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:56,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:12:56,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:56,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:12:56,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:56,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 01:12:56,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:56,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:12:56,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:56,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:12:56,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:56,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 01:12:56,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:56,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:12:56,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:56,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:12:56,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:56,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 01:12:56,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:56,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:12:56,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:56,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:12:56,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:56,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-14 01:12:56,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:56,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:12:56,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:56,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:12:56,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:56,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-14 01:12:56,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:56,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-14 01:12:56,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:56,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-14 01:12:56,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:56,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-14 01:12:56,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:56,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-14 01:12:56,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:56,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-14 01:12:56,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:56,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-14 01:12:56,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:56,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-14 01:12:56,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:56,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-14 01:12:56,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:56,680 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2022-07-14 01:12:56,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:12:56,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382039340] [2022-07-14 01:12:56,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382039340] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:12:56,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:12:56,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 01:12:56,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870866506] [2022-07-14 01:12:56,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:12:56,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 01:12:56,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:12:56,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 01:12:56,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-14 01:12:56,684 INFO L87 Difference]: Start difference. First operand 1059 states and 1459 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-14 01:12:57,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:12:57,837 INFO L93 Difference]: Finished difference Result 1101 states and 1526 transitions. [2022-07-14 01:12:57,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 01:12:57,838 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 185 [2022-07-14 01:12:57,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:12:57,843 INFO L225 Difference]: With dead ends: 1101 [2022-07-14 01:12:57,844 INFO L226 Difference]: Without dead ends: 1098 [2022-07-14 01:12:57,844 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-07-14 01:12:57,856 INFO L413 NwaCegarLoop]: 1064 mSDtfsCounter, 1412 mSDsluCounter, 1493 mSDsCounter, 0 mSdLazyCounter, 728 mSolverCounterSat, 547 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1523 SdHoareTripleChecker+Valid, 2557 SdHoareTripleChecker+Invalid, 1275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 547 IncrementalHoareTripleChecker+Valid, 728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-14 01:12:57,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1523 Valid, 2557 Invalid, 1275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [547 Valid, 728 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-14 01:12:57,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1098 states. [2022-07-14 01:12:57,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1098 to 1058. [2022-07-14 01:12:57,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1058 states, 773 states have (on average 1.3544631306597672) internal successors, (1047), 789 states have internal predecessors, (1047), 209 states have call successors, (209), 76 states have call predecessors, (209), 75 states have return successors, (201), 200 states have call predecessors, (201), 201 states have call successors, (201) [2022-07-14 01:12:57,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1058 states to 1058 states and 1457 transitions. [2022-07-14 01:12:57,895 INFO L78 Accepts]: Start accepts. Automaton has 1058 states and 1457 transitions. Word has length 185 [2022-07-14 01:12:57,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:12:57,896 INFO L495 AbstractCegarLoop]: Abstraction has 1058 states and 1457 transitions. [2022-07-14 01:12:57,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-14 01:12:57,897 INFO L276 IsEmpty]: Start isEmpty. Operand 1058 states and 1457 transitions. [2022-07-14 01:12:57,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-07-14 01:12:57,899 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:12:57,899 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:12:57,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-14 01:12:57,899 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:12:57,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:12:57,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1058621727, now seen corresponding path program 1 times [2022-07-14 01:12:57,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:12:57,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664140229] [2022-07-14 01:12:57,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:12:57,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:12:57,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:58,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:12:58,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:58,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:12:58,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:58,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:12:58,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:58,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:12:58,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:58,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:12:58,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:58,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:12:58,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:58,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 01:12:58,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:58,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:12:58,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:58,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:12:58,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:58,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 01:12:58,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:58,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:12:58,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:58,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:12:58,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:58,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 01:12:58,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:58,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:12:58,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:58,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:12:58,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:58,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-14 01:12:58,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:58,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:12:58,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:58,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:12:58,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:58,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-14 01:12:58,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:58,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-14 01:12:58,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:58,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-14 01:12:58,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:58,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-14 01:12:58,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:58,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-14 01:12:58,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:58,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-14 01:12:58,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:58,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-14 01:12:58,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:58,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-14 01:12:58,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:58,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-14 01:12:58,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:58,159 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2022-07-14 01:12:58,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:12:58,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664140229] [2022-07-14 01:12:58,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664140229] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:12:58,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:12:58,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 01:12:58,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108473449] [2022-07-14 01:12:58,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:12:58,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 01:12:58,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:12:58,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 01:12:58,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-14 01:12:58,161 INFO L87 Difference]: Start difference. First operand 1058 states and 1457 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-14 01:12:59,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:12:59,304 INFO L93 Difference]: Finished difference Result 1100 states and 1524 transitions. [2022-07-14 01:12:59,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 01:12:59,305 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 186 [2022-07-14 01:12:59,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:12:59,310 INFO L225 Difference]: With dead ends: 1100 [2022-07-14 01:12:59,310 INFO L226 Difference]: Without dead ends: 1097 [2022-07-14 01:12:59,311 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-07-14 01:12:59,311 INFO L413 NwaCegarLoop]: 1062 mSDtfsCounter, 1409 mSDsluCounter, 1490 mSDsCounter, 0 mSdLazyCounter, 728 mSolverCounterSat, 545 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1520 SdHoareTripleChecker+Valid, 2552 SdHoareTripleChecker+Invalid, 1273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 545 IncrementalHoareTripleChecker+Valid, 728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-14 01:12:59,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1520 Valid, 2552 Invalid, 1273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [545 Valid, 728 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-14 01:12:59,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1097 states. [2022-07-14 01:12:59,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1097 to 1057. [2022-07-14 01:12:59,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1057 states, 773 states have (on average 1.3531694695989651) internal successors, (1046), 788 states have internal predecessors, (1046), 208 states have call successors, (208), 76 states have call predecessors, (208), 75 states have return successors, (201), 200 states have call predecessors, (201), 201 states have call successors, (201) [2022-07-14 01:12:59,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1057 states to 1057 states and 1455 transitions. [2022-07-14 01:12:59,351 INFO L78 Accepts]: Start accepts. Automaton has 1057 states and 1455 transitions. Word has length 186 [2022-07-14 01:12:59,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:12:59,351 INFO L495 AbstractCegarLoop]: Abstraction has 1057 states and 1455 transitions. [2022-07-14 01:12:59,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-14 01:12:59,352 INFO L276 IsEmpty]: Start isEmpty. Operand 1057 states and 1455 transitions. [2022-07-14 01:12:59,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-07-14 01:12:59,355 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:12:59,356 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:12:59,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-14 01:12:59,356 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:12:59,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:12:59,357 INFO L85 PathProgramCache]: Analyzing trace with hash -1542714851, now seen corresponding path program 1 times [2022-07-14 01:12:59,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:12:59,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436058116] [2022-07-14 01:12:59,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:12:59,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:12:59,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:59,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:12:59,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:59,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:12:59,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:59,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:12:59,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:59,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:12:59,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:59,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:12:59,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:59,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:12:59,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:59,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 01:12:59,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:59,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:12:59,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:59,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:12:59,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:59,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 01:12:59,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:59,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:12:59,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:59,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:12:59,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:59,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 01:12:59,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:59,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:12:59,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:59,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:12:59,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:59,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-14 01:12:59,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:59,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:12:59,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:59,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:12:59,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:59,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-14 01:12:59,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:59,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-14 01:12:59,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:59,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-14 01:12:59,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:59,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-14 01:12:59,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:59,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-14 01:12:59,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:59,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-14 01:12:59,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:59,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-14 01:12:59,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:59,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-14 01:12:59,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:59,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-14 01:12:59,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:12:59,665 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2022-07-14 01:12:59,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:12:59,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436058116] [2022-07-14 01:12:59,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436058116] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:12:59,667 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:12:59,667 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 01:12:59,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408121735] [2022-07-14 01:12:59,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:12:59,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 01:12:59,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:12:59,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 01:12:59,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-14 01:12:59,669 INFO L87 Difference]: Start difference. First operand 1057 states and 1455 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-14 01:13:00,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:13:00,805 INFO L93 Difference]: Finished difference Result 1225 states and 1649 transitions. [2022-07-14 01:13:00,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 01:13:00,805 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 187 [2022-07-14 01:13:00,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:13:00,810 INFO L225 Difference]: With dead ends: 1225 [2022-07-14 01:13:00,810 INFO L226 Difference]: Without dead ends: 1221 [2022-07-14 01:13:00,811 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-14 01:13:00,812 INFO L413 NwaCegarLoop]: 1067 mSDtfsCounter, 1446 mSDsluCounter, 1152 mSDsCounter, 0 mSdLazyCounter, 727 mSolverCounterSat, 605 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1535 SdHoareTripleChecker+Valid, 2219 SdHoareTripleChecker+Invalid, 1332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 605 IncrementalHoareTripleChecker+Valid, 727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-14 01:13:00,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1535 Valid, 2219 Invalid, 1332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [605 Valid, 727 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-14 01:13:00,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1221 states. [2022-07-14 01:13:00,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1221 to 1175. [2022-07-14 01:13:00,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1175 states, 852 states have (on average 1.3274647887323943) internal successors, (1131), 865 states have internal predecessors, (1131), 224 states have call successors, (224), 99 states have call predecessors, (224), 98 states have return successors, (219), 218 states have call predecessors, (219), 219 states have call successors, (219) [2022-07-14 01:13:00,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1175 states to 1175 states and 1574 transitions. [2022-07-14 01:13:00,845 INFO L78 Accepts]: Start accepts. Automaton has 1175 states and 1574 transitions. Word has length 187 [2022-07-14 01:13:00,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:13:00,845 INFO L495 AbstractCegarLoop]: Abstraction has 1175 states and 1574 transitions. [2022-07-14 01:13:00,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-14 01:13:00,846 INFO L276 IsEmpty]: Start isEmpty. Operand 1175 states and 1574 transitions. [2022-07-14 01:13:00,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-07-14 01:13:00,847 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:13:00,847 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:13:00,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-14 01:13:00,848 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:13:00,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:13:00,848 INFO L85 PathProgramCache]: Analyzing trace with hash -579765278, now seen corresponding path program 1 times [2022-07-14 01:13:00,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:13:00,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214694804] [2022-07-14 01:13:00,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:13:00,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:13:00,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:00,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:13:00,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:00,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:00,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:00,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:00,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:00,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:13:00,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:00,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:00,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:00,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:00,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:00,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 01:13:00,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:00,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:00,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:00,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:00,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:00,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 01:13:00,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:00,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:00,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:00,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:00,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:00,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 01:13:01,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:01,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:01,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:01,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:01,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:01,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-14 01:13:01,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:01,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:01,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:01,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:01,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:01,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-14 01:13:01,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:01,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-14 01:13:01,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:01,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-14 01:13:01,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:01,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-14 01:13:01,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:01,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-14 01:13:01,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:01,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-14 01:13:01,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:01,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-14 01:13:01,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:01,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-14 01:13:01,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:01,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-14 01:13:01,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:01,085 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2022-07-14 01:13:01,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:13:01,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214694804] [2022-07-14 01:13:01,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214694804] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:13:01,086 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:13:01,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 01:13:01,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900813638] [2022-07-14 01:13:01,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:13:01,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 01:13:01,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:13:01,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 01:13:01,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-14 01:13:01,088 INFO L87 Difference]: Start difference. First operand 1175 states and 1574 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-14 01:13:01,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:13:01,926 INFO L93 Difference]: Finished difference Result 1219 states and 1642 transitions. [2022-07-14 01:13:01,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 01:13:01,926 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 188 [2022-07-14 01:13:01,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:13:01,931 INFO L225 Difference]: With dead ends: 1219 [2022-07-14 01:13:01,931 INFO L226 Difference]: Without dead ends: 1216 [2022-07-14 01:13:01,931 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-07-14 01:13:01,932 INFO L413 NwaCegarLoop]: 1056 mSDtfsCounter, 1665 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 764 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1776 SdHoareTripleChecker+Valid, 1587 SdHoareTripleChecker+Invalid, 1068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 764 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-14 01:13:01,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1776 Valid, 1587 Invalid, 1068 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [764 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-14 01:13:01,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1216 states. [2022-07-14 01:13:01,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1216 to 1174. [2022-07-14 01:13:01,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1174 states, 852 states have (on average 1.3262910798122065) internal successors, (1130), 864 states have internal predecessors, (1130), 223 states have call successors, (223), 99 states have call predecessors, (223), 98 states have return successors, (219), 218 states have call predecessors, (219), 219 states have call successors, (219) [2022-07-14 01:13:01,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1174 states to 1174 states and 1572 transitions. [2022-07-14 01:13:01,969 INFO L78 Accepts]: Start accepts. Automaton has 1174 states and 1572 transitions. Word has length 188 [2022-07-14 01:13:01,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:13:01,969 INFO L495 AbstractCegarLoop]: Abstraction has 1174 states and 1572 transitions. [2022-07-14 01:13:01,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-14 01:13:01,970 INFO L276 IsEmpty]: Start isEmpty. Operand 1174 states and 1572 transitions. [2022-07-14 01:13:01,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-14 01:13:01,971 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:13:01,971 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:13:01,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-14 01:13:01,972 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:13:01,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:13:01,972 INFO L85 PathProgramCache]: Analyzing trace with hash -793094720, now seen corresponding path program 1 times [2022-07-14 01:13:01,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:13:01,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96834098] [2022-07-14 01:13:01,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:13:01,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:13:02,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:02,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:13:02,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:02,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:02,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:02,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:02,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:02,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:13:02,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:02,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:02,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:02,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:02,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:02,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 01:13:02,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:02,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:02,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:02,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:02,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:02,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 01:13:02,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:02,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:02,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:02,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:02,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:02,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 01:13:02,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:02,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:02,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:02,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:02,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:02,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-14 01:13:02,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:02,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:02,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:02,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:02,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:02,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-14 01:13:02,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:02,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-14 01:13:02,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:02,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-14 01:13:02,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:02,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-14 01:13:02,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:02,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-14 01:13:02,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:02,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-14 01:13:02,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:02,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-14 01:13:02,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:02,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-14 01:13:02,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:02,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-14 01:13:02,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:02,180 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2022-07-14 01:13:02,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:13:02,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96834098] [2022-07-14 01:13:02,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96834098] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:13:02,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:13:02,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 01:13:02,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476256234] [2022-07-14 01:13:02,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:13:02,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 01:13:02,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:13:02,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 01:13:02,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-14 01:13:02,182 INFO L87 Difference]: Start difference. First operand 1174 states and 1572 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-14 01:13:03,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:13:03,925 INFO L93 Difference]: Finished difference Result 3490 states and 4715 transitions. [2022-07-14 01:13:03,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 01:13:03,926 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 189 [2022-07-14 01:13:03,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:13:03,935 INFO L225 Difference]: With dead ends: 3490 [2022-07-14 01:13:03,935 INFO L226 Difference]: Without dead ends: 2330 [2022-07-14 01:13:03,938 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-14 01:13:03,939 INFO L413 NwaCegarLoop]: 1442 mSDtfsCounter, 1777 mSDsluCounter, 2032 mSDsCounter, 0 mSdLazyCounter, 1201 mSolverCounterSat, 851 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1890 SdHoareTripleChecker+Valid, 3474 SdHoareTripleChecker+Invalid, 2052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 851 IncrementalHoareTripleChecker+Valid, 1201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-14 01:13:03,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1890 Valid, 3474 Invalid, 2052 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [851 Valid, 1201 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-14 01:13:03,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2330 states. [2022-07-14 01:13:04,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2330 to 2249. [2022-07-14 01:13:04,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2249 states, 1641 states have (on average 1.3302864107251675) internal successors, (2183), 1664 states have internal predecessors, (2183), 417 states have call successors, (417), 191 states have call predecessors, (417), 190 states have return successors, (426), 409 states have call predecessors, (426), 410 states have call successors, (426) [2022-07-14 01:13:04,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2249 states to 2249 states and 3026 transitions. [2022-07-14 01:13:04,013 INFO L78 Accepts]: Start accepts. Automaton has 2249 states and 3026 transitions. Word has length 189 [2022-07-14 01:13:04,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:13:04,013 INFO L495 AbstractCegarLoop]: Abstraction has 2249 states and 3026 transitions. [2022-07-14 01:13:04,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-14 01:13:04,014 INFO L276 IsEmpty]: Start isEmpty. Operand 2249 states and 3026 transitions. [2022-07-14 01:13:04,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2022-07-14 01:13:04,016 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:13:04,016 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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] [2022-07-14 01:13:04,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-14 01:13:04,017 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:13:04,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:13:04,017 INFO L85 PathProgramCache]: Analyzing trace with hash -2000675306, now seen corresponding path program 1 times [2022-07-14 01:13:04,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:13:04,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131760863] [2022-07-14 01:13:04,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:13:04,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:13:04,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:04,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:13:04,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:04,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:04,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:04,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:04,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:04,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:13:04,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:04,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:04,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:04,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:04,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:04,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 01:13:04,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:04,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:04,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:04,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:04,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:04,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 01:13:04,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:04,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:04,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:04,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:04,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:04,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 01:13:04,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:04,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:04,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:04,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:04,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:04,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-14 01:13:04,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:04,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:04,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:04,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:04,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:04,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-14 01:13:04,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:04,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-14 01:13:04,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:04,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-14 01:13:04,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:04,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-14 01:13:04,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:04,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-14 01:13:04,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:04,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-14 01:13:04,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:04,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-14 01:13:04,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:04,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-14 01:13:04,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:04,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-14 01:13:04,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:04,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-14 01:13:04,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:04,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:04,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:04,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:04,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:04,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-14 01:13:04,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:04,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:04,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:04,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:04,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:04,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-07-14 01:13:04,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:04,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-07-14 01:13:04,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:04,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-14 01:13:04,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:04,319 INFO L134 CoverageAnalysis]: Checked inductivity of 575 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 572 trivial. 0 not checked. [2022-07-14 01:13:04,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:13:04,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131760863] [2022-07-14 01:13:04,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131760863] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:13:04,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:13:04,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 01:13:04,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312548540] [2022-07-14 01:13:04,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:13:04,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 01:13:04,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:13:04,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 01:13:04,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 01:13:04,323 INFO L87 Difference]: Start difference. First operand 2249 states and 3026 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-14 01:13:06,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:13:06,143 INFO L93 Difference]: Finished difference Result 4545 states and 6131 transitions. [2022-07-14 01:13:06,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 01:13:06,143 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 249 [2022-07-14 01:13:06,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:13:06,152 INFO L225 Difference]: With dead ends: 4545 [2022-07-14 01:13:06,152 INFO L226 Difference]: Without dead ends: 2334 [2022-07-14 01:13:06,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2022-07-14 01:13:06,159 INFO L413 NwaCegarLoop]: 1018 mSDtfsCounter, 904 mSDsluCounter, 1873 mSDsCounter, 0 mSdLazyCounter, 2020 mSolverCounterSat, 677 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 942 SdHoareTripleChecker+Valid, 2891 SdHoareTripleChecker+Invalid, 2697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 677 IncrementalHoareTripleChecker+Valid, 2020 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-07-14 01:13:06,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [942 Valid, 2891 Invalid, 2697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [677 Valid, 2020 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-14 01:13:06,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2334 states. [2022-07-14 01:13:06,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2334 to 2251. [2022-07-14 01:13:06,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2251 states, 1643 states have (on average 1.3298843578819233) internal successors, (2185), 1666 states have internal predecessors, (2185), 417 states have call successors, (417), 191 states have call predecessors, (417), 190 states have return successors, (426), 409 states have call predecessors, (426), 410 states have call successors, (426) [2022-07-14 01:13:06,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2251 states to 2251 states and 3028 transitions. [2022-07-14 01:13:06,230 INFO L78 Accepts]: Start accepts. Automaton has 2251 states and 3028 transitions. Word has length 249 [2022-07-14 01:13:06,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:13:06,230 INFO L495 AbstractCegarLoop]: Abstraction has 2251 states and 3028 transitions. [2022-07-14 01:13:06,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-14 01:13:06,231 INFO L276 IsEmpty]: Start isEmpty. Operand 2251 states and 3028 transitions. [2022-07-14 01:13:06,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2022-07-14 01:13:06,233 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:13:06,233 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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] [2022-07-14 01:13:06,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-14 01:13:06,234 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:13:06,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:13:06,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1302948285, now seen corresponding path program 1 times [2022-07-14 01:13:06,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:13:06,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825939097] [2022-07-14 01:13:06,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:13:06,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:13:06,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:06,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:13:06,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:06,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:06,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:06,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:06,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:06,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:13:06,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:06,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:06,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:06,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:06,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:06,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 01:13:06,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:06,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:06,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:06,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:06,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:06,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 01:13:06,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:06,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:06,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:06,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:06,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:06,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 01:13:06,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:06,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:06,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:06,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:06,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:06,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-14 01:13:06,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:06,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:06,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:06,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:06,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:06,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-14 01:13:06,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:06,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-14 01:13:06,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:06,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-14 01:13:06,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:06,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-14 01:13:06,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:06,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-14 01:13:06,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:06,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-14 01:13:06,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:06,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-14 01:13:06,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:06,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-14 01:13:06,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:06,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-14 01:13:06,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:06,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-07-14 01:13:06,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:06,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-14 01:13:06,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:06,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2022-07-14 01:13:06,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:06,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:06,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:06,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:06,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:06,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-07-14 01:13:06,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:06,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:06,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:06,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:06,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:06,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-07-14 01:13:06,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:06,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-07-14 01:13:06,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:06,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2022-07-14 01:13:06,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:06,502 INFO L134 CoverageAnalysis]: Checked inductivity of 579 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 575 trivial. 0 not checked. [2022-07-14 01:13:06,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:13:06,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825939097] [2022-07-14 01:13:06,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825939097] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 01:13:06,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1794945201] [2022-07-14 01:13:06,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:13:06,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 01:13:06,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 01:13:06,505 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) [2022-07-14 01:13:06,506 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-14 01:13:07,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:07,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 2463 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 01:13:07,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:13:07,083 INFO L134 CoverageAnalysis]: Checked inductivity of 579 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 576 trivial. 0 not checked. [2022-07-14 01:13:07,087 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:13:07,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1794945201] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:13:07,088 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 01:13:07,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2022-07-14 01:13:07,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626324102] [2022-07-14 01:13:07,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:13:07,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 01:13:07,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:13:07,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 01:13:07,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-07-14 01:13:07,089 INFO L87 Difference]: Start difference. First operand 2251 states and 3028 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-14 01:13:07,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:13:07,158 INFO L93 Difference]: Finished difference Result 4475 states and 6013 transitions. [2022-07-14 01:13:07,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 01:13:07,159 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 261 [2022-07-14 01:13:07,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:13:07,167 INFO L225 Difference]: With dead ends: 4475 [2022-07-14 01:13:07,167 INFO L226 Difference]: Without dead ends: 2260 [2022-07-14 01:13:07,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 333 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-07-14 01:13:07,174 INFO L413 NwaCegarLoop]: 1141 mSDtfsCounter, 9 mSDsluCounter, 1135 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2276 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 01:13:07,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2276 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 01:13:07,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2260 states. [2022-07-14 01:13:07,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2260 to 2244. [2022-07-14 01:13:07,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2244 states, 1636 states have (on average 1.3288508557457213) internal successors, (2174), 1659 states have internal predecessors, (2174), 417 states have call successors, (417), 191 states have call predecessors, (417), 190 states have return successors, (426), 409 states have call predecessors, (426), 410 states have call successors, (426) [2022-07-14 01:13:07,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2244 states to 2244 states and 3017 transitions. [2022-07-14 01:13:07,242 INFO L78 Accepts]: Start accepts. Automaton has 2244 states and 3017 transitions. Word has length 261 [2022-07-14 01:13:07,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:13:07,242 INFO L495 AbstractCegarLoop]: Abstraction has 2244 states and 3017 transitions. [2022-07-14 01:13:07,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-14 01:13:07,243 INFO L276 IsEmpty]: Start isEmpty. Operand 2244 states and 3017 transitions. [2022-07-14 01:13:07,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2022-07-14 01:13:07,245 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:13:07,246 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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] [2022-07-14 01:13:07,267 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-14 01:13:07,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-07-14 01:13:07,458 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:13:07,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:13:07,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1917832635, now seen corresponding path program 1 times [2022-07-14 01:13:07,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:13:07,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712348745] [2022-07-14 01:13:07,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:13:07,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:13:07,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:07,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:13:07,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:07,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:07,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:07,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:07,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:07,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:13:07,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:07,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:07,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:07,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:07,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:07,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 01:13:07,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:07,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:07,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:07,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:07,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:07,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 01:13:07,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:07,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:07,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:07,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:07,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:07,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 01:13:07,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:07,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:07,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:07,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:07,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:07,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-14 01:13:07,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:07,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:07,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:07,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:07,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:07,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-14 01:13:07,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:07,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-14 01:13:07,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:07,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-14 01:13:07,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:07,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-14 01:13:07,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:07,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-14 01:13:07,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:07,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-14 01:13:07,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:07,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-14 01:13:07,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:07,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-14 01:13:07,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:07,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-14 01:13:07,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:07,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-07-14 01:13:07,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:07,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-14 01:13:07,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:07,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2022-07-14 01:13:07,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:07,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:07,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:07,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:07,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:07,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-07-14 01:13:07,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:07,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:07,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:07,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:07,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:07,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-07-14 01:13:07,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:07,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:07,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:07,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:07,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:07,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-07-14 01:13:07,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:07,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-07-14 01:13:07,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:07,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-07-14 01:13:07,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:07,771 INFO L134 CoverageAnalysis]: Checked inductivity of 691 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 687 trivial. 0 not checked. [2022-07-14 01:13:07,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:13:07,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712348745] [2022-07-14 01:13:07,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712348745] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 01:13:07,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [208644858] [2022-07-14 01:13:07,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:13:07,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 01:13:07,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 01:13:07,773 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 01:13:07,799 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-14 01:13:08,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:08,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 2543 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 01:13:08,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:13:08,408 INFO L134 CoverageAnalysis]: Checked inductivity of 691 backedges. 255 proven. 1 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-07-14 01:13:08,408 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 01:13:08,545 INFO L134 CoverageAnalysis]: Checked inductivity of 691 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 687 trivial. 0 not checked. [2022-07-14 01:13:08,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [208644858] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 01:13:08,545 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 01:13:08,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2022-07-14 01:13:08,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853182334] [2022-07-14 01:13:08,546 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 01:13:08,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-14 01:13:08,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:13:08,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-14 01:13:08,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-07-14 01:13:08,547 INFO L87 Difference]: Start difference. First operand 2244 states and 3017 transitions. Second operand has 11 states, 11 states have (on average 10.909090909090908) internal successors, (120), 7 states have internal predecessors, (120), 5 states have call successors, (59), 6 states have call predecessors, (59), 2 states have return successors, (37), 5 states have call predecessors, (37), 5 states have call successors, (37) [2022-07-14 01:13:10,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:13:10,676 INFO L93 Difference]: Finished difference Result 4559 states and 6149 transitions. [2022-07-14 01:13:10,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-14 01:13:10,677 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.909090909090908) internal successors, (120), 7 states have internal predecessors, (120), 5 states have call successors, (59), 6 states have call predecessors, (59), 2 states have return successors, (37), 5 states have call predecessors, (37), 5 states have call successors, (37) Word has length 278 [2022-07-14 01:13:10,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:13:10,685 INFO L225 Difference]: With dead ends: 4559 [2022-07-14 01:13:10,685 INFO L226 Difference]: Without dead ends: 2353 [2022-07-14 01:13:10,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 646 GetRequests, 634 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2022-07-14 01:13:10,690 INFO L413 NwaCegarLoop]: 1022 mSDtfsCounter, 913 mSDsluCounter, 2492 mSDsCounter, 0 mSdLazyCounter, 3014 mSolverCounterSat, 706 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 953 SdHoareTripleChecker+Valid, 3514 SdHoareTripleChecker+Invalid, 3720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 706 IncrementalHoareTripleChecker+Valid, 3014 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-14 01:13:10,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [953 Valid, 3514 Invalid, 3720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [706 Valid, 3014 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-07-14 01:13:10,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2353 states. [2022-07-14 01:13:10,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2353 to 2280. [2022-07-14 01:13:10,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2280 states, 1660 states have (on average 1.3240963855421686) internal successors, (2198), 1683 states have internal predecessors, (2198), 429 states have call successors, (429), 191 states have call predecessors, (429), 190 states have return successors, (438), 421 states have call predecessors, (438), 422 states have call successors, (438) [2022-07-14 01:13:10,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2280 states to 2280 states and 3065 transitions. [2022-07-14 01:13:10,757 INFO L78 Accepts]: Start accepts. Automaton has 2280 states and 3065 transitions. Word has length 278 [2022-07-14 01:13:10,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:13:10,757 INFO L495 AbstractCegarLoop]: Abstraction has 2280 states and 3065 transitions. [2022-07-14 01:13:10,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.909090909090908) internal successors, (120), 7 states have internal predecessors, (120), 5 states have call successors, (59), 6 states have call predecessors, (59), 2 states have return successors, (37), 5 states have call predecessors, (37), 5 states have call successors, (37) [2022-07-14 01:13:10,758 INFO L276 IsEmpty]: Start isEmpty. Operand 2280 states and 3065 transitions. [2022-07-14 01:13:10,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2022-07-14 01:13:10,761 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:13:10,761 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-07-14 01:13:10,783 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-14 01:13:10,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-07-14 01:13:10,975 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:13:10,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:13:10,976 INFO L85 PathProgramCache]: Analyzing trace with hash 601794288, now seen corresponding path program 2 times [2022-07-14 01:13:10,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:13:10,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478596314] [2022-07-14 01:13:10,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:13:10,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:13:11,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:11,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:13:11,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:11,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:11,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:11,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:11,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:11,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:13:11,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:11,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:11,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:11,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:11,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:11,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 01:13:11,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:11,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:11,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:11,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:11,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:11,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 01:13:11,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:11,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:11,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:11,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:11,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:11,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 01:13:11,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:11,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:11,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:11,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:11,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:11,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-14 01:13:11,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:11,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:11,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:11,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:11,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:11,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-14 01:13:11,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:11,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-14 01:13:11,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:11,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-14 01:13:11,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:11,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-14 01:13:11,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:11,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-14 01:13:11,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:11,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-14 01:13:11,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:11,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-14 01:13:11,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:11,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-14 01:13:11,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:11,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-14 01:13:11,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:11,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-07-14 01:13:11,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:11,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-14 01:13:11,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:11,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-14 01:13:11,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:11,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-07-14 01:13:11,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:11,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-14 01:13:11,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:11,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-07-14 01:13:11,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:11,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-07-14 01:13:11,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:11,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-07-14 01:13:11,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:11,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-07-14 01:13:11,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:11,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:11,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:11,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:11,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:11,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-07-14 01:13:11,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:11,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:11,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:11,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:11,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:11,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2022-07-14 01:13:11,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:11,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:11,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:11,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:11,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:11,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2022-07-14 01:13:11,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:11,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-07-14 01:13:11,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:11,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-07-14 01:13:11,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:11,379 INFO L134 CoverageAnalysis]: Checked inductivity of 811 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 811 trivial. 0 not checked. [2022-07-14 01:13:11,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:13:11,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478596314] [2022-07-14 01:13:11,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478596314] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:13:11,380 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:13:11,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 01:13:11,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310234299] [2022-07-14 01:13:11,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:13:11,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 01:13:11,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:13:11,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 01:13:11,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 01:13:11,392 INFO L87 Difference]: Start difference. First operand 2280 states and 3065 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (27), 7 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-14 01:13:13,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:13:13,094 INFO L93 Difference]: Finished difference Result 2361 states and 3185 transitions. [2022-07-14 01:13:13,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-14 01:13:13,095 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (27), 7 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 314 [2022-07-14 01:13:13,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:13:13,104 INFO L225 Difference]: With dead ends: 2361 [2022-07-14 01:13:13,104 INFO L226 Difference]: Without dead ends: 2358 [2022-07-14 01:13:13,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 96 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-07-14 01:13:13,106 INFO L413 NwaCegarLoop]: 1092 mSDtfsCounter, 1151 mSDsluCounter, 1806 mSDsCounter, 0 mSdLazyCounter, 1918 mSolverCounterSat, 802 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1205 SdHoareTripleChecker+Valid, 2898 SdHoareTripleChecker+Invalid, 2720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 802 IncrementalHoareTripleChecker+Valid, 1918 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-14 01:13:13,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1205 Valid, 2898 Invalid, 2720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [802 Valid, 1918 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-14 01:13:13,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2358 states. [2022-07-14 01:13:13,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2358 to 2279. [2022-07-14 01:13:13,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2279 states, 1660 states have (on average 1.3228915662650602) internal successors, (2196), 1682 states have internal predecessors, (2196), 428 states have call successors, (428), 191 states have call predecessors, (428), 190 states have return successors, (438), 421 states have call predecessors, (438), 422 states have call successors, (438) [2022-07-14 01:13:13,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2279 states to 2279 states and 3062 transitions. [2022-07-14 01:13:13,176 INFO L78 Accepts]: Start accepts. Automaton has 2279 states and 3062 transitions. Word has length 314 [2022-07-14 01:13:13,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:13:13,176 INFO L495 AbstractCegarLoop]: Abstraction has 2279 states and 3062 transitions. [2022-07-14 01:13:13,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (27), 7 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-14 01:13:13,177 INFO L276 IsEmpty]: Start isEmpty. Operand 2279 states and 3062 transitions. [2022-07-14 01:13:13,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2022-07-14 01:13:13,181 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:13:13,181 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-07-14 01:13:13,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-14 01:13:13,182 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:13:13,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:13:13,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1891311777, now seen corresponding path program 1 times [2022-07-14 01:13:13,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:13:13,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698307218] [2022-07-14 01:13:13,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:13:13,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:13:13,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:13,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:13:13,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:13,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:13,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:13,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:13,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:13,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:13:13,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:13,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:13,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:13,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:13,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:13,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 01:13:13,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:13,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:13,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:13,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:13,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:13,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 01:13:13,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:13,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:13,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:13,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:13,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:13,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 01:13:13,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:13,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:13,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:13,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:13,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:13,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-14 01:13:13,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:13,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:13,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:13,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:13,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:13,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-14 01:13:13,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:13,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-14 01:13:13,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:13,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-14 01:13:13,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:13,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-14 01:13:13,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:13,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-14 01:13:13,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:13,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-14 01:13:13,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:13,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-14 01:13:13,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:13,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-14 01:13:13,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:13,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-14 01:13:13,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:13,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-07-14 01:13:13,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:13,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-14 01:13:13,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:13,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-14 01:13:13,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:13,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-07-14 01:13:13,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:13,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-14 01:13:13,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:13,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-07-14 01:13:13,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:13,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-07-14 01:13:13,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:13,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-07-14 01:13:13,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:13,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-07-14 01:13:13,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:13,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:13,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:13,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:13,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:13,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-07-14 01:13:13,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:13,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:13,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:13,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:13,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:13,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2022-07-14 01:13:13,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:13,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:13,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:13,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:13,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:13,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-07-14 01:13:13,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:13,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2022-07-14 01:13:13,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:13,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-07-14 01:13:13,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:13,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2022-07-14 01:13:13,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:13,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:13:13,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:13,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2022-07-14 01:13:13,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:13,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:13,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:13,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-14 01:13:13,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:13,566 INFO L134 CoverageAnalysis]: Checked inductivity of 811 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 811 trivial. 0 not checked. [2022-07-14 01:13:13,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:13:13,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698307218] [2022-07-14 01:13:13,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698307218] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:13:13,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:13:13,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 01:13:13,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506677352] [2022-07-14 01:13:13,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:13:13,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 01:13:13,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:13:13,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 01:13:13,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 01:13:13,568 INFO L87 Difference]: Start difference. First operand 2279 states and 3062 transitions. Second operand has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (33), 7 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-07-14 01:13:15,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:13:15,491 INFO L93 Difference]: Finished difference Result 4602 states and 6192 transitions. [2022-07-14 01:13:15,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-14 01:13:15,491 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (33), 7 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 345 [2022-07-14 01:13:15,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:13:15,498 INFO L225 Difference]: With dead ends: 4602 [2022-07-14 01:13:15,499 INFO L226 Difference]: Without dead ends: 2361 [2022-07-14 01:13:15,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 108 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2022-07-14 01:13:15,502 INFO L413 NwaCegarLoop]: 1694 mSDtfsCounter, 2370 mSDsluCounter, 2178 mSDsCounter, 0 mSdLazyCounter, 1548 mSolverCounterSat, 1432 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2498 SdHoareTripleChecker+Valid, 3872 SdHoareTripleChecker+Invalid, 2980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1432 IncrementalHoareTripleChecker+Valid, 1548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-07-14 01:13:15,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2498 Valid, 3872 Invalid, 2980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1432 Valid, 1548 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-14 01:13:15,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2361 states. [2022-07-14 01:13:15,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2361 to 2276. [2022-07-14 01:13:15,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2276 states, 1657 states have (on average 1.3210621605310802) internal successors, (2189), 1680 states have internal predecessors, (2189), 428 states have call successors, (428), 190 states have call predecessors, (428), 190 states have return successors, (424), 421 states have call predecessors, (424), 417 states have call successors, (424) [2022-07-14 01:13:15,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2276 states to 2276 states and 3041 transitions. [2022-07-14 01:13:15,569 INFO L78 Accepts]: Start accepts. Automaton has 2276 states and 3041 transitions. Word has length 345 [2022-07-14 01:13:15,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:13:15,570 INFO L495 AbstractCegarLoop]: Abstraction has 2276 states and 3041 transitions. [2022-07-14 01:13:15,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (33), 7 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-07-14 01:13:15,570 INFO L276 IsEmpty]: Start isEmpty. Operand 2276 states and 3041 transitions. [2022-07-14 01:13:15,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2022-07-14 01:13:15,574 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:13:15,574 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:13:15,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-14 01:13:15,574 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:13:15,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:13:15,575 INFO L85 PathProgramCache]: Analyzing trace with hash -518397778, now seen corresponding path program 1 times [2022-07-14 01:13:15,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:13:15,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18285407] [2022-07-14 01:13:15,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:13:15,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:13:15,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:15,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:13:15,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:15,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:15,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:15,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:15,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:15,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:13:15,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:15,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:15,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:15,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:15,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:15,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 01:13:15,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:15,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:15,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:15,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:15,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:15,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 01:13:15,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:15,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:15,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:15,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:15,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:15,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 01:13:15,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:15,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:15,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:15,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:15,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:15,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-14 01:13:15,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:15,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:15,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:15,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:15,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:15,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-14 01:13:15,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:15,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-14 01:13:15,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:15,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-14 01:13:15,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:15,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-14 01:13:15,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:15,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-14 01:13:15,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:15,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-14 01:13:15,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:15,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-14 01:13:15,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:15,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-14 01:13:15,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:15,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-14 01:13:15,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:15,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-07-14 01:13:15,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:15,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-14 01:13:15,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:15,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-14 01:13:15,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:15,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-07-14 01:13:15,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:15,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-14 01:13:15,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:15,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-07-14 01:13:15,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:15,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-07-14 01:13:15,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:15,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-07-14 01:13:15,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:15,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-07-14 01:13:15,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:15,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:15,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:15,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:15,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:15,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-07-14 01:13:15,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:15,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:15,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:15,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:15,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:15,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2022-07-14 01:13:15,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:15,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:15,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:15,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:15,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:15,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2022-07-14 01:13:15,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:15,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-07-14 01:13:15,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:15,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-07-14 01:13:15,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:15,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2022-07-14 01:13:15,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:15,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:13:15,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:15,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2022-07-14 01:13:15,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:15,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:15,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:15,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-14 01:13:15,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:15,861 INFO L134 CoverageAnalysis]: Checked inductivity of 811 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 808 trivial. 0 not checked. [2022-07-14 01:13:15,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:13:15,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18285407] [2022-07-14 01:13:15,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18285407] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:13:15,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:13:15,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 01:13:15,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404625141] [2022-07-14 01:13:15,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:13:15,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 01:13:15,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:13:15,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 01:13:15,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 01:13:15,865 INFO L87 Difference]: Start difference. First operand 2276 states and 3041 transitions. Second operand has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (33), 6 states have call predecessors, (33), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-07-14 01:13:17,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:13:17,767 INFO L93 Difference]: Finished difference Result 5741 states and 7651 transitions. [2022-07-14 01:13:17,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-14 01:13:17,768 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (33), 6 states have call predecessors, (33), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 346 [2022-07-14 01:13:17,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:13:17,779 INFO L225 Difference]: With dead ends: 5741 [2022-07-14 01:13:17,780 INFO L226 Difference]: Without dead ends: 3503 [2022-07-14 01:13:17,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-07-14 01:13:17,784 INFO L413 NwaCegarLoop]: 1445 mSDtfsCounter, 2394 mSDsluCounter, 1920 mSDsCounter, 0 mSdLazyCounter, 1363 mSolverCounterSat, 1430 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2478 SdHoareTripleChecker+Valid, 3365 SdHoareTripleChecker+Invalid, 2793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1430 IncrementalHoareTripleChecker+Valid, 1363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-07-14 01:13:17,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2478 Valid, 3365 Invalid, 2793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1430 Valid, 1363 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-14 01:13:17,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3503 states. [2022-07-14 01:13:17,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3503 to 3285. [2022-07-14 01:13:17,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3285 states, 2415 states have (on average 1.3250517598343685) internal successors, (3200), 2450 states have internal predecessors, (3200), 577 states have call successors, (577), 291 states have call predecessors, (577), 292 states have return successors, (574), 568 states have call predecessors, (574), 566 states have call successors, (574) [2022-07-14 01:13:17,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3285 states to 3285 states and 4351 transitions. [2022-07-14 01:13:17,885 INFO L78 Accepts]: Start accepts. Automaton has 3285 states and 4351 transitions. Word has length 346 [2022-07-14 01:13:17,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:13:17,885 INFO L495 AbstractCegarLoop]: Abstraction has 3285 states and 4351 transitions. [2022-07-14 01:13:17,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (33), 6 states have call predecessors, (33), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-07-14 01:13:17,886 INFO L276 IsEmpty]: Start isEmpty. Operand 3285 states and 4351 transitions. [2022-07-14 01:13:17,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2022-07-14 01:13:17,889 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:13:17,889 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-07-14 01:13:17,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-14 01:13:17,890 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:13:17,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:13:17,890 INFO L85 PathProgramCache]: Analyzing trace with hash 1902627904, now seen corresponding path program 1 times [2022-07-14 01:13:17,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:13:17,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253097360] [2022-07-14 01:13:17,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:13:17,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:13:17,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:18,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:13:18,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:18,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:18,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:18,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:18,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:18,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:13:18,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:18,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:18,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:18,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:18,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:18,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 01:13:18,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:18,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:18,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:18,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:18,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:18,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 01:13:18,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:18,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:18,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:18,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:18,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:18,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 01:13:18,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:18,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:18,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:18,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:18,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:18,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-14 01:13:18,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:18,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:18,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:18,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:18,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:18,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-14 01:13:18,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:18,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-14 01:13:18,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:18,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-14 01:13:18,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:18,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-14 01:13:18,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:18,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-14 01:13:18,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:18,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-14 01:13:18,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:18,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-14 01:13:18,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:18,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-14 01:13:18,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:18,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-14 01:13:18,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:18,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-07-14 01:13:18,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:18,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-14 01:13:18,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:18,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-14 01:13:18,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:18,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-07-14 01:13:18,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:18,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-14 01:13:18,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:18,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-07-14 01:13:18,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:18,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-07-14 01:13:18,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:18,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-07-14 01:13:18,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:18,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-07-14 01:13:18,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:18,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:18,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:18,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:18,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:18,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-07-14 01:13:18,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:18,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:18,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:18,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:18,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:18,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2022-07-14 01:13:18,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:18,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:18,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:18,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:18,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:18,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-07-14 01:13:18,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:18,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2022-07-14 01:13:18,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:18,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-07-14 01:13:18,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:18,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2022-07-14 01:13:18,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:18,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:13:18,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:18,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2022-07-14 01:13:18,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:18,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:18,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:18,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-14 01:13:18,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:18,276 INFO L134 CoverageAnalysis]: Checked inductivity of 811 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 811 trivial. 0 not checked. [2022-07-14 01:13:18,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:13:18,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253097360] [2022-07-14 01:13:18,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253097360] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:13:18,277 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:13:18,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-14 01:13:18,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470698283] [2022-07-14 01:13:18,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:13:18,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-14 01:13:18,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:13:18,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-14 01:13:18,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-07-14 01:13:18,279 INFO L87 Difference]: Start difference. First operand 3285 states and 4351 transitions. Second operand has 10 states, 10 states have (on average 10.6) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (33), 6 states have call predecessors, (33), 2 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) [2022-07-14 01:13:20,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:13:20,504 INFO L93 Difference]: Finished difference Result 3531 states and 4639 transitions. [2022-07-14 01:13:20,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-14 01:13:20,504 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.6) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (33), 6 states have call predecessors, (33), 2 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) Word has length 345 [2022-07-14 01:13:20,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:13:20,527 INFO L225 Difference]: With dead ends: 3531 [2022-07-14 01:13:20,527 INFO L226 Difference]: Without dead ends: 3082 [2022-07-14 01:13:20,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2022-07-14 01:13:20,530 INFO L413 NwaCegarLoop]: 1052 mSDtfsCounter, 826 mSDsluCounter, 4382 mSDsCounter, 0 mSdLazyCounter, 3151 mSolverCounterSat, 659 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 842 SdHoareTripleChecker+Valid, 5434 SdHoareTripleChecker+Invalid, 3810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 659 IncrementalHoareTripleChecker+Valid, 3151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-14 01:13:20,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [842 Valid, 5434 Invalid, 3810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [659 Valid, 3151 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-07-14 01:13:20,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3082 states. [2022-07-14 01:13:20,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3082 to 2987. [2022-07-14 01:13:20,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2987 states, 2197 states have (on average 1.3154301319981794) internal successors, (2890), 2225 states have internal predecessors, (2890), 513 states have call successors, (513), 275 states have call predecessors, (513), 276 states have return successors, (511), 506 states have call predecessors, (511), 503 states have call successors, (511) [2022-07-14 01:13:20,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2987 states to 2987 states and 3914 transitions. [2022-07-14 01:13:20,615 INFO L78 Accepts]: Start accepts. Automaton has 2987 states and 3914 transitions. Word has length 345 [2022-07-14 01:13:20,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:13:20,615 INFO L495 AbstractCegarLoop]: Abstraction has 2987 states and 3914 transitions. [2022-07-14 01:13:20,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.6) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (33), 6 states have call predecessors, (33), 2 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) [2022-07-14 01:13:20,615 INFO L276 IsEmpty]: Start isEmpty. Operand 2987 states and 3914 transitions. [2022-07-14 01:13:20,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2022-07-14 01:13:20,619 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:13:20,620 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2022-07-14 01:13:20,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-14 01:13:20,620 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:13:20,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:13:20,620 INFO L85 PathProgramCache]: Analyzing trace with hash -198496091, now seen corresponding path program 1 times [2022-07-14 01:13:20,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:13:20,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471482356] [2022-07-14 01:13:20,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:13:20,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:13:20,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:20,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:13:20,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:20,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:20,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:20,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:20,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:20,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:13:20,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:20,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:20,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:20,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:20,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:20,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 01:13:20,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:20,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:20,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:20,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:20,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:20,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 01:13:20,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:20,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:20,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:20,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:20,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:20,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 01:13:20,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:20,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:20,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:20,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:20,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:20,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-14 01:13:20,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:20,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:20,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:20,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:20,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:20,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-14 01:13:20,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:20,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-14 01:13:20,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:20,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-14 01:13:20,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:20,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-14 01:13:20,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:20,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-14 01:13:20,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:20,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-14 01:13:20,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:20,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-14 01:13:20,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:20,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-14 01:13:20,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:20,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-14 01:13:20,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:20,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-07-14 01:13:20,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:20,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-14 01:13:20,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:20,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-14 01:13:20,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:20,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-07-14 01:13:20,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:20,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-14 01:13:20,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:20,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-07-14 01:13:20,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:20,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-07-14 01:13:20,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:20,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-07-14 01:13:20,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:20,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-07-14 01:13:20,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:20,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:20,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:20,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:20,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:20,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-07-14 01:13:20,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:20,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:20,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:20,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:20,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:20,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2022-07-14 01:13:20,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:20,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:20,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:20,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:20,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:20,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-07-14 01:13:20,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:20,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:20,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:20,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:20,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:20,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-14 01:13:20,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:20,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 01:13:20,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:21,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:13:21,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:21,022 INFO L134 CoverageAnalysis]: Checked inductivity of 825 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 811 trivial. 0 not checked. [2022-07-14 01:13:21,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:13:21,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471482356] [2022-07-14 01:13:21,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471482356] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:13:21,023 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:13:21,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-14 01:13:21,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909049239] [2022-07-14 01:13:21,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:13:21,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-14 01:13:21,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:13:21,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-14 01:13:21,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-07-14 01:13:21,025 INFO L87 Difference]: Start difference. First operand 2987 states and 3914 transitions. Second operand has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 5 states have internal predecessors, (119), 2 states have call successors, (29), 7 states have call predecessors, (29), 3 states have return successors, (28), 3 states have call predecessors, (28), 1 states have call successors, (28) [2022-07-14 01:13:23,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:13:23,152 INFO L93 Difference]: Finished difference Result 4258 states and 5572 transitions. [2022-07-14 01:13:23,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-14 01:13:23,153 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 5 states have internal predecessors, (119), 2 states have call successors, (29), 7 states have call predecessors, (29), 3 states have return successors, (28), 3 states have call predecessors, (28), 1 states have call successors, (28) Word has length 352 [2022-07-14 01:13:23,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:13:23,160 INFO L225 Difference]: With dead ends: 4258 [2022-07-14 01:13:23,160 INFO L226 Difference]: Without dead ends: 3075 [2022-07-14 01:13:23,163 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2022-07-14 01:13:23,164 INFO L413 NwaCegarLoop]: 1051 mSDtfsCounter, 979 mSDsluCounter, 4243 mSDsCounter, 0 mSdLazyCounter, 3119 mSolverCounterSat, 688 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1021 SdHoareTripleChecker+Valid, 5294 SdHoareTripleChecker+Invalid, 3807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 688 IncrementalHoareTripleChecker+Valid, 3119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-07-14 01:13:23,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1021 Valid, 5294 Invalid, 3807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [688 Valid, 3119 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-07-14 01:13:23,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3075 states. [2022-07-14 01:13:23,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3075 to 2980. [2022-07-14 01:13:23,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2980 states, 2192 states have (on average 1.3152372262773722) internal successors, (2883), 2220 states have internal predecessors, (2883), 513 states have call successors, (513), 275 states have call predecessors, (513), 274 states have return successors, (509), 504 states have call predecessors, (509), 503 states have call successors, (509) [2022-07-14 01:13:23,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2980 states to 2980 states and 3905 transitions. [2022-07-14 01:13:23,248 INFO L78 Accepts]: Start accepts. Automaton has 2980 states and 3905 transitions. Word has length 352 [2022-07-14 01:13:23,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:13:23,248 INFO L495 AbstractCegarLoop]: Abstraction has 2980 states and 3905 transitions. [2022-07-14 01:13:23,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 5 states have internal predecessors, (119), 2 states have call successors, (29), 7 states have call predecessors, (29), 3 states have return successors, (28), 3 states have call predecessors, (28), 1 states have call successors, (28) [2022-07-14 01:13:23,248 INFO L276 IsEmpty]: Start isEmpty. Operand 2980 states and 3905 transitions. [2022-07-14 01:13:23,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2022-07-14 01:13:23,254 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:13:23,255 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:13:23,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-14 01:13:23,255 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:13:23,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:13:23,255 INFO L85 PathProgramCache]: Analyzing trace with hash 2001566487, now seen corresponding path program 1 times [2022-07-14 01:13:23,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:13:23,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196079205] [2022-07-14 01:13:23,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:13:23,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:13:23,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:23,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:13:23,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:23,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:23,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:23,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:23,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:23,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:13:23,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:23,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:23,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:23,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:23,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:23,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 01:13:23,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:23,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:23,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:23,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:23,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:23,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 01:13:23,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:23,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:23,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:23,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:23,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:23,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 01:13:23,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:23,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:23,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:23,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:23,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:23,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-14 01:13:23,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:23,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:23,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:23,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:23,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:23,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-14 01:13:23,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:23,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-14 01:13:23,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:23,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-14 01:13:23,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:23,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-14 01:13:23,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:23,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-14 01:13:23,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:23,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-14 01:13:23,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:23,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-14 01:13:23,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:23,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-14 01:13:23,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:23,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-14 01:13:23,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:23,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-07-14 01:13:23,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:23,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-14 01:13:23,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:23,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-14 01:13:23,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:23,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-07-14 01:13:23,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:23,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-14 01:13:23,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:23,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-07-14 01:13:23,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:23,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-07-14 01:13:23,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:23,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-07-14 01:13:23,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:23,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-07-14 01:13:23,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:23,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:23,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:23,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:23,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:23,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-07-14 01:13:23,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:23,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:23,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:23,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:23,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:23,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2022-07-14 01:13:23,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:23,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:23,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:23,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:23,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:23,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2022-07-14 01:13:23,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:23,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-07-14 01:13:23,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:23,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-07-14 01:13:23,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:23,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2022-07-14 01:13:23,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:23,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2022-07-14 01:13:23,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:23,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2022-07-14 01:13:23,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:23,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2022-07-14 01:13:23,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:23,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-07-14 01:13:23,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:23,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-07-14 01:13:23,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:23,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2022-07-14 01:13:23,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:23,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:13:23,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:23,585 INFO L134 CoverageAnalysis]: Checked inductivity of 842 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 825 trivial. 0 not checked. [2022-07-14 01:13:23,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:13:23,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196079205] [2022-07-14 01:13:23,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196079205] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:13:23,586 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:13:23,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-14 01:13:23,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19020447] [2022-07-14 01:13:23,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:13:23,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-14 01:13:23,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:13:23,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 01:13:23,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-14 01:13:23,588 INFO L87 Difference]: Start difference. First operand 2980 states and 3905 transitions. Second operand has 8 states, 8 states have (on average 18.375) internal successors, (147), 3 states have internal predecessors, (147), 2 states have call successors, (34), 7 states have call predecessors, (34), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-07-14 01:13:25,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:13:25,249 INFO L93 Difference]: Finished difference Result 6020 states and 7916 transitions. [2022-07-14 01:13:25,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-14 01:13:25,250 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 18.375) internal successors, (147), 3 states have internal predecessors, (147), 2 states have call successors, (34), 7 states have call predecessors, (34), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 399 [2022-07-14 01:13:25,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:13:25,257 INFO L225 Difference]: With dead ends: 6020 [2022-07-14 01:13:25,258 INFO L226 Difference]: Without dead ends: 3078 [2022-07-14 01:13:25,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2022-07-14 01:13:25,264 INFO L413 NwaCegarLoop]: 1022 mSDtfsCounter, 1263 mSDsluCounter, 1945 mSDsCounter, 0 mSdLazyCounter, 1897 mSolverCounterSat, 978 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1286 SdHoareTripleChecker+Valid, 2967 SdHoareTripleChecker+Invalid, 2875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 978 IncrementalHoareTripleChecker+Valid, 1897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-14 01:13:25,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1286 Valid, 2967 Invalid, 2875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [978 Valid, 1897 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-14 01:13:25,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3078 states. [2022-07-14 01:13:25,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3078 to 2980. [2022-07-14 01:13:25,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2980 states, 2192 states have (on average 1.311131386861314) internal successors, (2874), 2220 states have internal predecessors, (2874), 513 states have call successors, (513), 275 states have call predecessors, (513), 274 states have return successors, (509), 504 states have call predecessors, (509), 503 states have call successors, (509) [2022-07-14 01:13:25,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2980 states to 2980 states and 3896 transitions. [2022-07-14 01:13:25,390 INFO L78 Accepts]: Start accepts. Automaton has 2980 states and 3896 transitions. Word has length 399 [2022-07-14 01:13:25,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:13:25,391 INFO L495 AbstractCegarLoop]: Abstraction has 2980 states and 3896 transitions. [2022-07-14 01:13:25,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 18.375) internal successors, (147), 3 states have internal predecessors, (147), 2 states have call successors, (34), 7 states have call predecessors, (34), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-07-14 01:13:25,391 INFO L276 IsEmpty]: Start isEmpty. Operand 2980 states and 3896 transitions. [2022-07-14 01:13:25,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2022-07-14 01:13:25,398 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:13:25,399 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:13:25,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-14 01:13:25,399 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:13:25,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:13:25,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1712582581, now seen corresponding path program 1 times [2022-07-14 01:13:25,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:13:25,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065073666] [2022-07-14 01:13:25,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:13:25,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:13:25,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:25,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:13:25,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:25,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:25,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:25,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:25,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:25,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:13:25,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:25,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:25,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:25,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:25,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:25,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 01:13:25,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:25,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:25,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:25,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:25,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:25,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 01:13:25,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:25,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:25,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:25,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:25,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:25,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 01:13:25,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:25,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:25,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:25,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:25,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:25,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-14 01:13:25,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:25,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:25,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:25,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:25,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:25,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-14 01:13:25,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:25,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-14 01:13:25,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:25,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-14 01:13:25,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:25,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-14 01:13:25,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:25,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-14 01:13:25,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:25,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-14 01:13:25,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:25,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-14 01:13:25,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:25,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-14 01:13:25,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:25,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-14 01:13:25,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:25,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-07-14 01:13:25,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:25,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-14 01:13:25,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:25,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-14 01:13:25,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:25,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-07-14 01:13:25,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:25,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-14 01:13:25,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:25,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-07-14 01:13:25,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:25,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-07-14 01:13:25,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:25,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-07-14 01:13:25,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:25,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-07-14 01:13:25,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:25,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:25,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:25,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:25,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:25,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-07-14 01:13:25,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:25,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:25,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:25,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:25,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:25,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2022-07-14 01:13:25,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:25,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:25,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:25,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:25,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:25,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2022-07-14 01:13:25,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:25,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-07-14 01:13:25,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:25,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-07-14 01:13:25,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:25,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2022-07-14 01:13:25,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:25,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2022-07-14 01:13:25,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:25,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2022-07-14 01:13:25,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:25,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2022-07-14 01:13:25,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:25,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2022-07-14 01:13:25,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:25,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2022-07-14 01:13:25,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:25,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2022-07-14 01:13:25,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:25,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:13:25,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:25,743 INFO L134 CoverageAnalysis]: Checked inductivity of 842 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 825 trivial. 0 not checked. [2022-07-14 01:13:25,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:13:25,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065073666] [2022-07-14 01:13:25,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065073666] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:13:25,743 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:13:25,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-14 01:13:25,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413316155] [2022-07-14 01:13:25,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:13:25,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-14 01:13:25,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:13:25,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-14 01:13:25,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-07-14 01:13:25,745 INFO L87 Difference]: Start difference. First operand 2980 states and 3896 transitions. Second operand has 11 states, 11 states have (on average 13.636363636363637) internal successors, (150), 5 states have internal predecessors, (150), 2 states have call successors, (34), 7 states have call predecessors, (34), 2 states have return successors, (33), 2 states have call predecessors, (33), 1 states have call successors, (33) [2022-07-14 01:13:28,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:13:28,680 INFO L93 Difference]: Finished difference Result 5320 states and 7243 transitions. [2022-07-14 01:13:28,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-14 01:13:28,680 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 13.636363636363637) internal successors, (150), 5 states have internal predecessors, (150), 2 states have call successors, (34), 7 states have call predecessors, (34), 2 states have return successors, (33), 2 states have call predecessors, (33), 1 states have call successors, (33) Word has length 402 [2022-07-14 01:13:28,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:13:28,694 INFO L225 Difference]: With dead ends: 5320 [2022-07-14 01:13:28,695 INFO L226 Difference]: Without dead ends: 4143 [2022-07-14 01:13:28,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=266, Unknown=0, NotChecked=0, Total=342 [2022-07-14 01:13:28,698 INFO L413 NwaCegarLoop]: 1504 mSDtfsCounter, 1981 mSDsluCounter, 5545 mSDsCounter, 0 mSdLazyCounter, 4489 mSolverCounterSat, 1179 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2022 SdHoareTripleChecker+Valid, 7049 SdHoareTripleChecker+Invalid, 5668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1179 IncrementalHoareTripleChecker+Valid, 4489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-07-14 01:13:28,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2022 Valid, 7049 Invalid, 5668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1179 Valid, 4489 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-07-14 01:13:28,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4143 states. [2022-07-14 01:13:28,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4143 to 2979. [2022-07-14 01:13:28,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2979 states, 2191 states have (on average 1.310816978548608) internal successors, (2872), 2219 states have internal predecessors, (2872), 513 states have call successors, (513), 275 states have call predecessors, (513), 274 states have return successors, (509), 504 states have call predecessors, (509), 503 states have call successors, (509) [2022-07-14 01:13:28,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2979 states to 2979 states and 3894 transitions. [2022-07-14 01:13:28,806 INFO L78 Accepts]: Start accepts. Automaton has 2979 states and 3894 transitions. Word has length 402 [2022-07-14 01:13:28,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:13:28,806 INFO L495 AbstractCegarLoop]: Abstraction has 2979 states and 3894 transitions. [2022-07-14 01:13:28,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 13.636363636363637) internal successors, (150), 5 states have internal predecessors, (150), 2 states have call successors, (34), 7 states have call predecessors, (34), 2 states have return successors, (33), 2 states have call predecessors, (33), 1 states have call successors, (33) [2022-07-14 01:13:28,806 INFO L276 IsEmpty]: Start isEmpty. Operand 2979 states and 3894 transitions. [2022-07-14 01:13:28,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 420 [2022-07-14 01:13:28,812 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:13:28,812 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:13:28,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-14 01:13:28,812 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:13:28,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:13:28,813 INFO L85 PathProgramCache]: Analyzing trace with hash -295887866, now seen corresponding path program 1 times [2022-07-14 01:13:28,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:13:28,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644111832] [2022-07-14 01:13:28,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:13:28,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:13:28,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:28,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:13:28,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:28,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:28,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:28,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:28,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:28,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:13:28,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:28,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:28,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:28,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:28,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:28,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 01:13:28,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:28,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:28,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:28,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:28,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:28,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 01:13:29,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:29,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:29,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:29,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:29,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:29,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 01:13:29,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:29,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:29,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:29,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:29,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:29,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-14 01:13:29,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:29,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:29,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:29,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:29,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:29,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-14 01:13:29,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:29,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-14 01:13:29,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:29,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-14 01:13:29,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:29,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-14 01:13:29,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:29,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-14 01:13:29,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:29,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-14 01:13:29,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:29,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-14 01:13:29,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:29,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-14 01:13:29,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:29,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-14 01:13:29,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:29,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-07-14 01:13:29,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:29,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-14 01:13:29,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:29,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-14 01:13:29,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:29,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-07-14 01:13:29,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:29,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-14 01:13:29,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:29,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-07-14 01:13:29,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:29,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-07-14 01:13:29,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:29,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-07-14 01:13:29,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:29,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-07-14 01:13:29,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:29,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:29,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:29,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:29,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:29,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-07-14 01:13:29,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:29,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:29,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:29,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:29,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:29,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2022-07-14 01:13:29,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:29,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:29,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:29,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:29,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:29,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2022-07-14 01:13:29,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:29,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-07-14 01:13:29,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:29,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-07-14 01:13:29,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:29,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2022-07-14 01:13:29,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:29,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2022-07-14 01:13:29,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:29,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2022-07-14 01:13:29,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:29,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2022-07-14 01:13:29,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:29,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2022-07-14 01:13:29,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:29,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2022-07-14 01:13:29,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:29,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2022-07-14 01:13:29,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:29,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:13:29,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:29,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2022-07-14 01:13:29,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:29,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:29,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:29,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2022-07-14 01:13:29,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:29,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-07-14 01:13:29,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:29,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2022-07-14 01:13:29,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:29,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2022-07-14 01:13:29,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:29,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:29,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:29,137 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 828 trivial. 0 not checked. [2022-07-14 01:13:29,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:13:29,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644111832] [2022-07-14 01:13:29,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644111832] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:13:29,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:13:29,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-14 01:13:29,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395066623] [2022-07-14 01:13:29,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:13:29,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-14 01:13:29,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:13:29,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-14 01:13:29,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-07-14 01:13:29,139 INFO L87 Difference]: Start difference. First operand 2979 states and 3894 transitions. Second operand has 11 states, 11 states have (on average 13.636363636363637) internal successors, (150), 5 states have internal predecessors, (150), 2 states have call successors, (42), 7 states have call predecessors, (42), 2 states have return successors, (40), 3 states have call predecessors, (40), 2 states have call successors, (40) [2022-07-14 01:13:31,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:13:31,706 INFO L93 Difference]: Finished difference Result 4192 states and 5768 transitions. [2022-07-14 01:13:31,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-14 01:13:31,707 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 13.636363636363637) internal successors, (150), 5 states have internal predecessors, (150), 2 states have call successors, (42), 7 states have call predecessors, (42), 2 states have return successors, (40), 3 states have call predecessors, (40), 2 states have call successors, (40) Word has length 419 [2022-07-14 01:13:31,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:13:31,717 INFO L225 Difference]: With dead ends: 4192 [2022-07-14 01:13:31,717 INFO L226 Difference]: Without dead ends: 4037 [2022-07-14 01:13:31,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=261, Unknown=0, NotChecked=0, Total=342 [2022-07-14 01:13:31,720 INFO L413 NwaCegarLoop]: 1476 mSDtfsCounter, 2135 mSDsluCounter, 4903 mSDsCounter, 0 mSdLazyCounter, 3947 mSolverCounterSat, 1309 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2161 SdHoareTripleChecker+Valid, 6379 SdHoareTripleChecker+Invalid, 5256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1309 IncrementalHoareTripleChecker+Valid, 3947 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-07-14 01:13:31,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2161 Valid, 6379 Invalid, 5256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1309 Valid, 3947 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-07-14 01:13:31,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4037 states. [2022-07-14 01:13:31,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4037 to 2873. [2022-07-14 01:13:31,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2873 states, 2124 states have (on average 1.3126177024482109) internal successors, (2788), 2148 states have internal predecessors, (2788), 484 states have call successors, (484), 265 states have call predecessors, (484), 264 states have return successors, (481), 476 states have call predecessors, (481), 475 states have call successors, (481) [2022-07-14 01:13:31,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2873 states to 2873 states and 3753 transitions. [2022-07-14 01:13:31,816 INFO L78 Accepts]: Start accepts. Automaton has 2873 states and 3753 transitions. Word has length 419 [2022-07-14 01:13:31,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:13:31,817 INFO L495 AbstractCegarLoop]: Abstraction has 2873 states and 3753 transitions. [2022-07-14 01:13:31,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 13.636363636363637) internal successors, (150), 5 states have internal predecessors, (150), 2 states have call successors, (42), 7 states have call predecessors, (42), 2 states have return successors, (40), 3 states have call predecessors, (40), 2 states have call successors, (40) [2022-07-14 01:13:31,817 INFO L276 IsEmpty]: Start isEmpty. Operand 2873 states and 3753 transitions. [2022-07-14 01:13:31,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2022-07-14 01:13:31,823 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:13:31,823 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:13:31,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-14 01:13:31,823 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:13:31,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:13:31,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1065012368, now seen corresponding path program 1 times [2022-07-14 01:13:31,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:13:31,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467323140] [2022-07-14 01:13:31,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:13:31,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:13:31,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:31,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:13:31,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:31,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:31,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:31,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:31,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:31,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:13:31,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:31,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:31,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:32,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:32,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:32,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 01:13:32,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:32,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:32,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:32,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:32,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:32,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 01:13:32,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:32,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:32,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:32,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:32,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:32,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 01:13:32,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:32,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:32,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:32,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:32,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:32,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-14 01:13:32,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:32,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:32,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:32,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:32,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:32,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-14 01:13:32,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:32,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-14 01:13:32,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:32,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-14 01:13:32,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:32,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-14 01:13:32,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:32,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-14 01:13:32,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:32,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-14 01:13:32,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:32,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-14 01:13:32,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:32,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-14 01:13:32,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:32,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-14 01:13:32,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:32,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-07-14 01:13:32,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:32,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-14 01:13:32,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:32,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-14 01:13:32,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:32,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-07-14 01:13:32,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:32,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-14 01:13:32,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:32,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-07-14 01:13:32,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:32,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-07-14 01:13:32,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:32,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-07-14 01:13:32,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:32,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-07-14 01:13:32,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:32,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:32,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:32,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:32,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:32,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-07-14 01:13:32,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:32,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:32,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:32,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:32,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:32,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2022-07-14 01:13:32,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:32,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:32,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:32,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:32,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:32,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2022-07-14 01:13:32,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:32,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-07-14 01:13:32,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:32,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-07-14 01:13:32,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:32,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2022-07-14 01:13:32,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:32,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2022-07-14 01:13:32,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:32,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-07-14 01:13:32,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:32,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2022-07-14 01:13:32,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:32,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2022-07-14 01:13:32,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:32,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2022-07-14 01:13:32,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:32,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2022-07-14 01:13:32,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:32,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2022-07-14 01:13:32,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:32,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2022-07-14 01:13:32,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:32,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:13:32,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:32,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2022-07-14 01:13:32,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:32,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:32,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:32,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 403 [2022-07-14 01:13:32,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:32,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2022-07-14 01:13:32,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:32,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:32,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:32,269 INFO L134 CoverageAnalysis]: Checked inductivity of 834 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 834 trivial. 0 not checked. [2022-07-14 01:13:32,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:13:32,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467323140] [2022-07-14 01:13:32,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467323140] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:13:32,270 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:13:32,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-14 01:13:32,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236712206] [2022-07-14 01:13:32,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:13:32,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-14 01:13:32,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:13:32,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-14 01:13:32,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-07-14 01:13:32,272 INFO L87 Difference]: Start difference. First operand 2873 states and 3753 transitions. Second operand has 11 states, 11 states have (on average 13.727272727272727) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (43), 7 states have call predecessors, (43), 2 states have return successors, (40), 3 states have call predecessors, (40), 2 states have call successors, (40) [2022-07-14 01:13:34,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:13:34,845 INFO L93 Difference]: Finished difference Result 3005 states and 3924 transitions. [2022-07-14 01:13:34,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-14 01:13:34,846 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 13.727272727272727) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (43), 7 states have call predecessors, (43), 2 states have return successors, (40), 3 states have call predecessors, (40), 2 states have call successors, (40) Word has length 426 [2022-07-14 01:13:34,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:13:34,852 INFO L225 Difference]: With dead ends: 3005 [2022-07-14 01:13:34,853 INFO L226 Difference]: Without dead ends: 2960 [2022-07-14 01:13:34,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=109, Invalid=311, Unknown=0, NotChecked=0, Total=420 [2022-07-14 01:13:34,855 INFO L413 NwaCegarLoop]: 1018 mSDtfsCounter, 1225 mSDsluCounter, 3736 mSDsCounter, 0 mSdLazyCounter, 4225 mSolverCounterSat, 921 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1248 SdHoareTripleChecker+Valid, 4754 SdHoareTripleChecker+Invalid, 5146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 921 IncrementalHoareTripleChecker+Valid, 4225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-07-14 01:13:34,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1248 Valid, 4754 Invalid, 5146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [921 Valid, 4225 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-07-14 01:13:34,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2960 states. [2022-07-14 01:13:34,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2960 to 2863. [2022-07-14 01:13:34,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2863 states, 2119 states have (on average 1.312883435582822) internal successors, (2782), 2142 states have internal predecessors, (2782), 479 states have call successors, (479), 264 states have call predecessors, (479), 264 states have return successors, (478), 473 states have call predecessors, (478), 472 states have call successors, (478) [2022-07-14 01:13:34,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2863 states to 2863 states and 3739 transitions. [2022-07-14 01:13:34,949 INFO L78 Accepts]: Start accepts. Automaton has 2863 states and 3739 transitions. Word has length 426 [2022-07-14 01:13:34,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:13:34,949 INFO L495 AbstractCegarLoop]: Abstraction has 2863 states and 3739 transitions. [2022-07-14 01:13:34,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 13.727272727272727) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (43), 7 states have call predecessors, (43), 2 states have return successors, (40), 3 states have call predecessors, (40), 2 states have call successors, (40) [2022-07-14 01:13:34,950 INFO L276 IsEmpty]: Start isEmpty. Operand 2863 states and 3739 transitions. [2022-07-14 01:13:34,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 436 [2022-07-14 01:13:34,956 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:13:34,957 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:13:34,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-14 01:13:34,957 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:13:34,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:13:34,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1093849006, now seen corresponding path program 1 times [2022-07-14 01:13:34,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:13:34,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155021854] [2022-07-14 01:13:34,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:13:34,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:13:35,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:35,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:13:35,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:35,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:35,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:35,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:35,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:35,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:13:35,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:35,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:35,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:35,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:35,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:35,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 01:13:35,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:35,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:35,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:35,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:35,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:35,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 01:13:35,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:35,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:35,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:35,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:35,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:35,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 01:13:35,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:35,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:35,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:35,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:35,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:35,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-14 01:13:35,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:35,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:35,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:35,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:35,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:35,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-14 01:13:35,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:35,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-14 01:13:35,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:35,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-14 01:13:35,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:35,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-14 01:13:35,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:35,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-14 01:13:35,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:35,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-14 01:13:35,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:35,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-14 01:13:35,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:35,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-14 01:13:35,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:35,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-14 01:13:35,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:35,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-07-14 01:13:35,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:35,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-14 01:13:35,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:35,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-14 01:13:35,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:35,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-07-14 01:13:35,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:35,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-14 01:13:35,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:35,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-07-14 01:13:35,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:35,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-07-14 01:13:35,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:35,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-07-14 01:13:35,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:35,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-07-14 01:13:35,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:35,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:35,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:35,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:35,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:35,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-07-14 01:13:35,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:35,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:35,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:35,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:35,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:35,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2022-07-14 01:13:35,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:35,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:13:35,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:35,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:13:35,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:35,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2022-07-14 01:13:35,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:35,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-07-14 01:13:35,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:35,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-07-14 01:13:35,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:35,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2022-07-14 01:13:35,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:35,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2022-07-14 01:13:35,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:35,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-07-14 01:13:35,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:35,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2022-07-14 01:13:35,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:35,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2022-07-14 01:13:35,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:35,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2022-07-14 01:13:35,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:35,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2022-07-14 01:13:35,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:35,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2022-07-14 01:13:35,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:35,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-14 01:13:35,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:35,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-14 01:13:35,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:35,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:13:35,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:35,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2022-07-14 01:13:35,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:35,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2022-07-14 01:13:35,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:13:35,381 INFO L134 CoverageAnalysis]: Checked inductivity of 859 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 842 trivial. 0 not checked. [2022-07-14 01:13:35,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:13:35,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155021854] [2022-07-14 01:13:35,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155021854] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:13:35,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:13:35,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-14 01:13:35,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587670563] [2022-07-14 01:13:35,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:13:35,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-14 01:13:35,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:13:35,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-14 01:13:35,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-07-14 01:13:35,385 INFO L87 Difference]: Start difference. First operand 2863 states and 3739 transitions. Second operand has 12 states, 12 states have (on average 13.333333333333334) internal successors, (160), 5 states have internal predecessors, (160), 2 states have call successors, (39), 8 states have call predecessors, (39), 3 states have return successors, (38), 3 states have call predecessors, (38), 2 states have call successors, (38) [2022-07-14 01:13:37,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:13:37,702 INFO L93 Difference]: Finished difference Result 3066 states and 3971 transitions. [2022-07-14 01:13:37,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-14 01:13:37,702 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 13.333333333333334) internal successors, (160), 5 states have internal predecessors, (160), 2 states have call successors, (39), 8 states have call predecessors, (39), 3 states have return successors, (38), 3 states have call predecessors, (38), 2 states have call successors, (38) Word has length 435 [2022-07-14 01:13:37,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:13:37,703 INFO L225 Difference]: With dead ends: 3066 [2022-07-14 01:13:37,703 INFO L226 Difference]: Without dead ends: 0 [2022-07-14 01:13:37,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=331, Unknown=0, NotChecked=0, Total=420 [2022-07-14 01:13:37,708 INFO L413 NwaCegarLoop]: 988 mSDtfsCounter, 1484 mSDsluCounter, 3221 mSDsCounter, 0 mSdLazyCounter, 3800 mSolverCounterSat, 1150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1503 SdHoareTripleChecker+Valid, 4209 SdHoareTripleChecker+Invalid, 4950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1150 IncrementalHoareTripleChecker+Valid, 3800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-14 01:13:37,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1503 Valid, 4209 Invalid, 4950 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1150 Valid, 3800 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-07-14 01:13:37,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-14 01:13:37,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-14 01:13:37,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 01:13:37,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-14 01:13:37,709 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 435 [2022-07-14 01:13:37,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:13:37,709 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-14 01:13:37,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 13.333333333333334) internal successors, (160), 5 states have internal predecessors, (160), 2 states have call successors, (39), 8 states have call predecessors, (39), 3 states have return successors, (38), 3 states have call predecessors, (38), 2 states have call successors, (38) [2022-07-14 01:13:37,709 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-14 01:13:37,709 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-14 01:13:37,711 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-14 01:13:37,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-14 01:13:37,713 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.