./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--rc--imon.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--rc--imon.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 1dadd209c6e3ebdaafa15f295f1ec8ec38d24c8a1f9b514f05808fa8c7c3e21c --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 23:24:05,157 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 23:24:05,164 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 23:24:05,198 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 23:24:05,202 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 23:24:05,204 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 23:24:05,211 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 23:24:05,218 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 23:24:05,220 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 23:24:05,227 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 23:24:05,229 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 23:24:05,232 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 23:24:05,232 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 23:24:05,235 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 23:24:05,239 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 23:24:05,241 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 23:24:05,242 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 23:24:05,244 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 23:24:05,249 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 23:24:05,257 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 23:24:05,260 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 23:24:05,262 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 23:24:05,263 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 23:24:05,265 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 23:24:05,268 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 23:24:05,272 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 23:24:05,272 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 23:24:05,273 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 23:24:05,274 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 23:24:05,275 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 23:24:05,276 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 23:24:05,277 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 23:24:05,279 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 23:24:05,280 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 23:24:05,281 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 23:24:05,282 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 23:24:05,283 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 23:24:05,284 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 23:24:05,284 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 23:24:05,285 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 23:24:05,286 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 23:24:05,288 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 23:24:05,290 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-19 23:24:05,328 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 23:24:05,329 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 23:24:05,330 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 23:24:05,330 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 23:24:05,331 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 23:24:05,331 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 23:24:05,332 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 23:24:05,332 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 23:24:05,332 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 23:24:05,334 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 23:24:05,334 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 23:24:05,334 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 23:24:05,335 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 23:24:05,335 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 23:24:05,335 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 23:24:05,335 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 23:24:05,335 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 23:24:05,336 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 23:24:05,336 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 23:24:05,338 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 23:24:05,338 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 23:24:05,338 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 23:24:05,339 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 23:24:05,339 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 23:24:05,339 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 23:24:05,339 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 23:24:05,339 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 23:24:05,340 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 23:24:05,347 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 23:24:05,347 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 23:24:05,348 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1dadd209c6e3ebdaafa15f295f1ec8ec38d24c8a1f9b514f05808fa8c7c3e21c [2022-07-19 23:24:05,631 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 23:24:05,662 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 23:24:05,665 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 23:24:05,668 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 23:24:05,669 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 23:24:05,671 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--rc--imon.ko-entry_point.cil.out.i [2022-07-19 23:24:05,742 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60f4459c9/2ef62d38c34440018c3413e316911aae/FLAG134984148 [2022-07-19 23:24:06,624 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 23:24:06,625 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--rc--imon.ko-entry_point.cil.out.i [2022-07-19 23:24:06,725 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60f4459c9/2ef62d38c34440018c3413e316911aae/FLAG134984148 [2022-07-19 23:24:07,128 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60f4459c9/2ef62d38c34440018c3413e316911aae [2022-07-19 23:24:07,131 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 23:24:07,132 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 23:24:07,134 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 23:24:07,134 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 23:24:07,138 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 23:24:07,139 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:24:07" (1/1) ... [2022-07-19 23:24:07,140 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3645a23b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:24:07, skipping insertion in model container [2022-07-19 23:24:07,140 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:24:07" (1/1) ... [2022-07-19 23:24:07,148 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 23:24:07,246 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 23:24:08,222 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--rc--imon.ko-entry_point.cil.out.i[117505,117518] [2022-07-19 23:24:09,047 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 23:24:09,116 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 23:24:09,217 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--rc--imon.ko-entry_point.cil.out.i[117505,117518] [2022-07-19 23:24:09,431 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 23:24:09,525 INFO L208 MainTranslator]: Completed translation [2022-07-19 23:24:09,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:24:09 WrapperNode [2022-07-19 23:24:09,528 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 23:24:09,529 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 23:24:09,530 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 23:24:09,530 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 23:24:09,537 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:24:09" (1/1) ... [2022-07-19 23:24:09,619 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:24:09" (1/1) ... [2022-07-19 23:24:11,402 INFO L137 Inliner]: procedures = 229, calls = 2530, calls flagged for inlining = 102, calls inlined = 99, statements flattened = 5007 [2022-07-19 23:24:11,402 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 23:24:11,404 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 23:24:11,404 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 23:24:11,404 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 23:24:11,414 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:24:09" (1/1) ... [2022-07-19 23:24:11,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:24:09" (1/1) ... [2022-07-19 23:24:12,061 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:24:09" (1/1) ... [2022-07-19 23:24:12,062 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:24:09" (1/1) ... [2022-07-19 23:24:13,038 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:24:09" (1/1) ... [2022-07-19 23:24:13,071 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:24:09" (1/1) ... [2022-07-19 23:24:13,420 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:24:09" (1/1) ... [2022-07-19 23:24:13,865 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 23:24:13,868 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 23:24:13,868 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 23:24:13,868 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 23:24:13,870 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:24:09" (1/1) ... [2022-07-19 23:24:13,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 23:24:13,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 23:24:13,909 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) [2022-07-19 23:24:13,938 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 [2022-07-19 23:24:13,957 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-07-19 23:24:13,958 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-07-19 23:24:13,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-07-19 23:24:13,958 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-07-19 23:24:13,959 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-07-19 23:24:13,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-19 23:24:13,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-19 23:24:13,959 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-19 23:24:13,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-19 23:24:13,960 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2022-07-19 23:24:13,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2022-07-19 23:24:13,960 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_rel [2022-07-19 23:24:13,960 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_rel [2022-07-19 23:24:13,960 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_26 [2022-07-19 23:24:13,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_26 [2022-07-19 23:24:13,960 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-19 23:24:13,961 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-19 23:24:13,961 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2022-07-19 23:24:13,961 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2022-07-19 23:24:13,961 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-19 23:24:13,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-19 23:24:13,961 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2022-07-19 23:24:13,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2022-07-19 23:24:13,962 INFO L130 BoogieDeclarations]: Found specification of procedure send_packet [2022-07-19 23:24:13,962 INFO L138 BoogieDeclarations]: Found implementation of procedure send_packet [2022-07-19 23:24:13,962 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2022-07-19 23:24:13,962 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2022-07-19 23:24:13,962 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-19 23:24:13,962 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-19 23:24:13,963 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-19 23:24:13,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-19 23:24:13,963 INFO L130 BoogieDeclarations]: Found specification of procedure imon_disconnect [2022-07-19 23:24:13,963 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_disconnect [2022-07-19 23:24:13,963 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister_dev [2022-07-19 23:24:13,963 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister_dev [2022-07-19 23:24:13,964 INFO L130 BoogieDeclarations]: Found specification of procedure rc_g_keycode_from_table [2022-07-19 23:24:13,964 INFO L138 BoogieDeclarations]: Found implementation of procedure rc_g_keycode_from_table [2022-07-19 23:24:13,964 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-19 23:24:13,964 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-19 23:24:13,964 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2022-07-19 23:24:13,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2022-07-19 23:24:13,965 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-19 23:24:13,965 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-19 23:24:13,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-19 23:24:13,965 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2022-07-19 23:24:13,965 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2022-07-19 23:24:13,965 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_10 [2022-07-19 23:24:13,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_10 [2022-07-19 23:24:13,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-19 23:24:13,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_11 [2022-07-19 23:24:13,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_11 [2022-07-19 23:24:13,967 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2022-07-19 23:24:13,967 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2022-07-19 23:24:13,967 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-19 23:24:13,968 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-19 23:24:13,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2022-07-19 23:24:13,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2022-07-19 23:24:13,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-19 23:24:13,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-19 23:24:13,970 INFO L130 BoogieDeclarations]: Found specification of procedure do_gettimeofday [2022-07-19 23:24:13,970 INFO L138 BoogieDeclarations]: Found implementation of procedure do_gettimeofday [2022-07-19 23:24:13,970 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-19 23:24:13,970 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-19 23:24:13,970 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-19 23:24:13,971 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-19 23:24:13,971 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-19 23:24:13,971 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-19 23:24:13,972 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-19 23:24:13,972 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-19 23:24:13,972 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_drvdata [2022-07-19 23:24:13,972 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_drvdata [2022-07-19 23:24:13,972 INFO L130 BoogieDeclarations]: Found specification of procedure usb_rx_callback_intf1 [2022-07-19 23:24:13,972 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_rx_callback_intf1 [2022-07-19 23:24:13,973 INFO L130 BoogieDeclarations]: Found specification of procedure usb_rx_callback_intf0 [2022-07-19 23:24:13,973 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_rx_callback_intf0 [2022-07-19 23:24:13,973 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2022-07-19 23:24:13,974 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2022-07-19 23:24:13,974 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-19 23:24:13,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-19 23:24:13,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-19 23:24:13,975 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-07-19 23:24:13,975 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-07-19 23:24:13,975 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_abs [2022-07-19 23:24:13,975 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_abs [2022-07-19 23:24:13,975 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-07-19 23:24:13,975 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-07-19 23:24:13,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-19 23:24:13,976 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2022-07-19 23:24:13,976 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2022-07-19 23:24:13,976 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_create_group [2022-07-19 23:24:13,977 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_create_group [2022-07-19 23:24:13,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-19 23:24:13,977 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2022-07-19 23:24:13,977 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2022-07-19 23:24:13,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_int_urb_7 [2022-07-19 23:24:13,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_int_urb_7 [2022-07-19 23:24:13,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-19 23:24:13,979 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-19 23:24:13,979 INFO L130 BoogieDeclarations]: Found specification of procedure lcd_write [2022-07-19 23:24:13,980 INFO L138 BoogieDeclarations]: Found implementation of procedure lcd_write [2022-07-19 23:24:13,980 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-07-19 23:24:13,980 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-07-19 23:24:13,980 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-07-19 23:24:13,980 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-07-19 23:24:13,981 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-19 23:24:13,981 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-19 23:24:13,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-19 23:24:13,981 INFO L130 BoogieDeclarations]: Found specification of procedure usb_to_input_id [2022-07-19 23:24:13,981 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_to_input_id [2022-07-19 23:24:13,981 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2022-07-19 23:24:13,981 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2022-07-19 23:24:13,982 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2022-07-19 23:24:13,982 INFO L138 BoogieDeclarations]: Found implementation of procedure noop_llseek [2022-07-19 23:24:13,982 INFO L130 BoogieDeclarations]: Found specification of procedure imon_incoming_packet [2022-07-19 23:24:13,983 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_incoming_packet [2022-07-19 23:24:13,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-19 23:24:13,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-19 23:24:13,984 INFO L130 BoogieDeclarations]: Found specification of procedure imon_remote_key_lookup [2022-07-19 23:24:13,984 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_remote_key_lookup [2022-07-19 23:24:13,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-19 23:24:13,987 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2022-07-19 23:24:13,987 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2022-07-19 23:24:13,987 INFO L130 BoogieDeclarations]: Found specification of procedure tv2int [2022-07-19 23:24:13,988 INFO L138 BoogieDeclarations]: Found implementation of procedure tv2int [2022-07-19 23:24:13,990 INFO L130 BoogieDeclarations]: Found specification of procedure stabilize [2022-07-19 23:24:13,990 INFO L138 BoogieDeclarations]: Found implementation of procedure stabilize [2022-07-19 23:24:13,990 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2022-07-19 23:24:13,991 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2022-07-19 23:24:13,997 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_6 [2022-07-19 23:24:13,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_6 [2022-07-19 23:24:13,998 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-07-19 23:24:13,998 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-07-19 23:24:13,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 23:24:13,998 INFO L130 BoogieDeclarations]: Found specification of procedure vfd_write [2022-07-19 23:24:13,998 INFO L138 BoogieDeclarations]: Found implementation of procedure vfd_write [2022-07-19 23:24:13,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-19 23:24:13,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-19 23:24:13,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-19 23:24:13,999 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2022-07-19 23:24:13,999 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2022-07-19 23:24:13,999 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-19 23:24:13,999 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2022-07-19 23:24:13,999 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2022-07-19 23:24:13,999 INFO L130 BoogieDeclarations]: Found specification of procedure display_close [2022-07-19 23:24:14,000 INFO L138 BoogieDeclarations]: Found implementation of procedure display_close [2022-07-19 23:24:14,000 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-19 23:24:14,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-19 23:24:14,000 INFO L130 BoogieDeclarations]: Found specification of procedure ___ratelimit [2022-07-19 23:24:14,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ___ratelimit [2022-07-19 23:24:14,000 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_dev [2022-07-19 23:24:14,001 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_dev [2022-07-19 23:24:14,001 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2022-07-19 23:24:14,001 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2022-07-19 23:24:14,001 INFO L130 BoogieDeclarations]: Found specification of procedure imon_find_endpoints [2022-07-19 23:24:14,001 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_find_endpoints [2022-07-19 23:24:14,001 INFO L130 BoogieDeclarations]: Found specification of procedure display_open [2022-07-19 23:24:14,001 INFO L138 BoogieDeclarations]: Found implementation of procedure display_open [2022-07-19 23:24:14,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2022-07-19 23:24:14,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2022-07-19 23:24:14,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 23:24:14,002 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2022-07-19 23:24:14,002 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2022-07-19 23:24:14,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 23:24:14,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 23:24:14,786 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 23:24:14,789 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 23:24:22,742 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-19 23:24:43,918 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2022-07-19 23:24:46,641 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 23:24:46,665 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 23:24:46,665 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-19 23:24:46,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 11:24:46 BoogieIcfgContainer [2022-07-19 23:24:46,669 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 23:24:46,671 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 23:24:46,671 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 23:24:46,678 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 23:24:46,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 11:24:07" (1/3) ... [2022-07-19 23:24:46,679 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f86c61b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 11:24:46, skipping insertion in model container [2022-07-19 23:24:46,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:24:09" (2/3) ... [2022-07-19 23:24:46,680 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f86c61b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 11:24:46, skipping insertion in model container [2022-07-19 23:24:46,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 11:24:46" (3/3) ... [2022-07-19 23:24:46,682 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--media--rc--imon.ko-entry_point.cil.out.i [2022-07-19 23:24:46,694 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 23:24:46,694 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 23:24:46,770 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 23:24:46,776 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@6c233b48, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@274bc0ab [2022-07-19 23:24:46,777 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 23:24:46,788 INFO L276 IsEmpty]: Start isEmpty. Operand has 1557 states, 1165 states have (on average 1.4180257510729615) internal successors, (1652), 1196 states have internal predecessors, (1652), 319 states have call successors, (319), 73 states have call predecessors, (319), 71 states have return successors, (310), 305 states have call predecessors, (310), 310 states have call successors, (310) [2022-07-19 23:24:46,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-07-19 23:24:46,803 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:24:46,803 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:24:46,804 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:24:46,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:24:46,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1302166196, now seen corresponding path program 1 times [2022-07-19 23:24:46,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:24:46,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644426568] [2022-07-19 23:24:46,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:24:46,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:24:47,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:47,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:24:47,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:47,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 23:24:47,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:47,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 23:24:47,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:47,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 23:24:47,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:47,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 23:24:47,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:47,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 23:24:47,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:47,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-19 23:24:47,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:47,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-19 23:24:47,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:47,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-19 23:24:47,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:47,572 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-07-19 23:24:47,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:24:47,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644426568] [2022-07-19 23:24:47,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644426568] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:24:47,574 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:24:47,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 23:24:47,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144335399] [2022-07-19 23:24:47,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:24:47,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 23:24:47,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:24:47,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 23:24:47,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 23:24:47,621 INFO L87 Difference]: Start difference. First operand has 1557 states, 1165 states have (on average 1.4180257510729615) internal successors, (1652), 1196 states have internal predecessors, (1652), 319 states have call successors, (319), 73 states have call predecessors, (319), 71 states have return successors, (310), 305 states have call predecessors, (310), 310 states have call successors, (310) Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2022-07-19 23:24:49,897 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:24:52,872 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:24:55,898 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:24:59,342 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:25:00,427 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:25:04,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:25:04,263 INFO L93 Difference]: Finished difference Result 4719 states and 7110 transitions. [2022-07-19 23:25:04,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 23:25:04,265 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 74 [2022-07-19 23:25:04,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:25:04,302 INFO L225 Difference]: With dead ends: 4719 [2022-07-19 23:25:04,303 INFO L226 Difference]: Without dead ends: 3137 [2022-07-19 23:25:04,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 23:25:04,319 INFO L413 NwaCegarLoop]: 2464 mSDtfsCounter, 2439 mSDsluCounter, 2865 mSDsCounter, 0 mSdLazyCounter, 1444 mSolverCounterSat, 738 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2679 SdHoareTripleChecker+Valid, 5329 SdHoareTripleChecker+Invalid, 2184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 738 IncrementalHoareTripleChecker+Valid, 1444 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.3s IncrementalHoareTripleChecker+Time [2022-07-19 23:25:04,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2679 Valid, 5329 Invalid, 2184 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [738 Valid, 1444 Invalid, 2 Unknown, 0 Unchecked, 16.3s Time] [2022-07-19 23:25:04,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3137 states. [2022-07-19 23:25:04,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3137 to 3013. [2022-07-19 23:25:04,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3013 states, 2275 states have (on average 1.3806593406593406) internal successors, (3141), 2311 states have internal predecessors, (3141), 597 states have call successors, (597), 141 states have call predecessors, (597), 140 states have return successors, (592), 582 states have call predecessors, (592), 592 states have call successors, (592) [2022-07-19 23:25:04,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3013 states to 3013 states and 4330 transitions. [2022-07-19 23:25:04,510 INFO L78 Accepts]: Start accepts. Automaton has 3013 states and 4330 transitions. Word has length 74 [2022-07-19 23:25:04,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:25:04,512 INFO L495 AbstractCegarLoop]: Abstraction has 3013 states and 4330 transitions. [2022-07-19 23:25:04,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2022-07-19 23:25:04,513 INFO L276 IsEmpty]: Start isEmpty. Operand 3013 states and 4330 transitions. [2022-07-19 23:25:04,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-07-19 23:25:04,523 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:25:04,524 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:25:04,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 23:25:04,526 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:25:04,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:25:04,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1094154582, now seen corresponding path program 1 times [2022-07-19 23:25:04,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:25:04,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569110039] [2022-07-19 23:25:04,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:25:04,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:25:04,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:04,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:25:04,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:04,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 23:25:04,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:04,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 23:25:04,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:04,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 23:25:04,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:04,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 23:25:04,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:04,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 23:25:04,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:04,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-19 23:25:04,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:04,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-19 23:25:04,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:04,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-19 23:25:04,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:04,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-19 23:25:04,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:05,006 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-07-19 23:25:05,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:25:05,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569110039] [2022-07-19 23:25:05,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569110039] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:25:05,007 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:25:05,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 23:25:05,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927684131] [2022-07-19 23:25:05,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:25:05,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 23:25:05,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:25:05,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 23:25:05,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 23:25:05,010 INFO L87 Difference]: Start difference. First operand 3013 states and 4330 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-07-19 23:25:07,198 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:25:09,296 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:25:10,465 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:25:12,381 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:25:14,337 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:25:17,135 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:25:18,530 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:25:21,081 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:25:22,264 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:25:24,402 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:25:26,819 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:25:31,412 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:25:34,438 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:25:36,612 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:25:37,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:25:37,205 INFO L93 Difference]: Finished difference Result 9240 states and 13580 transitions. [2022-07-19 23:25:37,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 23:25:37,206 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 83 [2022-07-19 23:25:37,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:25:37,245 INFO L225 Difference]: With dead ends: 9240 [2022-07-19 23:25:37,245 INFO L226 Difference]: Without dead ends: 6250 [2022-07-19 23:25:37,261 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 23:25:37,262 INFO L413 NwaCegarLoop]: 2652 mSDtfsCounter, 2468 mSDsluCounter, 2930 mSDsCounter, 0 mSdLazyCounter, 1492 mSolverCounterSat, 714 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2698 SdHoareTripleChecker+Valid, 5582 SdHoareTripleChecker+Invalid, 2215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 714 IncrementalHoareTripleChecker+Valid, 1492 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.9s IncrementalHoareTripleChecker+Time [2022-07-19 23:25:37,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2698 Valid, 5582 Invalid, 2215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [714 Valid, 1492 Invalid, 9 Unknown, 0 Unchecked, 31.9s Time] [2022-07-19 23:25:37,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6250 states. [2022-07-19 23:25:37,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6250 to 6044. [2022-07-19 23:25:37,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6044 states, 4565 states have (on average 1.378313253012048) internal successors, (6292), 4635 states have internal predecessors, (6292), 1186 states have call successors, (1186), 281 states have call predecessors, (1186), 292 states have return successors, (1283), 1169 states have call predecessors, (1283), 1181 states have call successors, (1283) [2022-07-19 23:25:37,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6044 states to 6044 states and 8761 transitions. [2022-07-19 23:25:37,479 INFO L78 Accepts]: Start accepts. Automaton has 6044 states and 8761 transitions. Word has length 83 [2022-07-19 23:25:37,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:25:37,481 INFO L495 AbstractCegarLoop]: Abstraction has 6044 states and 8761 transitions. [2022-07-19 23:25:37,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-07-19 23:25:37,481 INFO L276 IsEmpty]: Start isEmpty. Operand 6044 states and 8761 transitions. [2022-07-19 23:25:37,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-07-19 23:25:37,485 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:25:37,486 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:25:37,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 23:25:37,486 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:25:37,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:25:37,487 INFO L85 PathProgramCache]: Analyzing trace with hash 440359394, now seen corresponding path program 1 times [2022-07-19 23:25:37,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:25:37,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237385092] [2022-07-19 23:25:37,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:25:37,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:25:37,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:37,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:25:37,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:37,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 23:25:37,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:37,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 23:25:37,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:37,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 23:25:37,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:37,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 23:25:37,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:37,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 23:25:37,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:37,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-19 23:25:37,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:37,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-19 23:25:37,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:37,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-19 23:25:37,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:37,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-19 23:25:37,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:37,857 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-07-19 23:25:37,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:25:37,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237385092] [2022-07-19 23:25:37,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237385092] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:25:37,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:25:37,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 23:25:37,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622470479] [2022-07-19 23:25:37,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:25:37,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 23:25:37,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:25:37,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 23:25:37,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 23:25:37,862 INFO L87 Difference]: Start difference. First operand 6044 states and 8761 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-07-19 23:25:40,019 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:25:41,824 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:25:44,860 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:25:46,976 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:25:50,175 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:25:54,600 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:25:57,309 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:25:59,988 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:26:01,993 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:26:04,441 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:26:05,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:26:05,441 INFO L93 Difference]: Finished difference Result 18473 states and 26981 transitions. [2022-07-19 23:26:05,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 23:26:05,442 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 84 [2022-07-19 23:26:05,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:26:05,508 INFO L225 Difference]: With dead ends: 18473 [2022-07-19 23:26:05,508 INFO L226 Difference]: Without dead ends: 12452 [2022-07-19 23:26:05,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 23:26:05,533 INFO L413 NwaCegarLoop]: 2913 mSDtfsCounter, 2418 mSDsluCounter, 3085 mSDsCounter, 0 mSdLazyCounter, 1529 mSolverCounterSat, 642 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2665 SdHoareTripleChecker+Valid, 5998 SdHoareTripleChecker+Invalid, 2179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 642 IncrementalHoareTripleChecker+Valid, 1529 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.2s IncrementalHoareTripleChecker+Time [2022-07-19 23:26:05,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2665 Valid, 5998 Invalid, 2179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [642 Valid, 1529 Invalid, 8 Unknown, 0 Unchecked, 27.2s Time] [2022-07-19 23:26:05,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12452 states. [2022-07-19 23:26:05,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12452 to 12051. [2022-07-19 23:26:05,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12051 states, 9108 states have (on average 1.3779095300834432) internal successors, (12550), 9244 states have internal predecessors, (12550), 2358 states have call successors, (2358), 561 states have call predecessors, (2358), 584 states have return successors, (2569), 2329 states have call predecessors, (2569), 2353 states have call successors, (2569) [2022-07-19 23:26:05,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12051 states to 12051 states and 17477 transitions. [2022-07-19 23:26:06,001 INFO L78 Accepts]: Start accepts. Automaton has 12051 states and 17477 transitions. Word has length 84 [2022-07-19 23:26:06,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:26:06,004 INFO L495 AbstractCegarLoop]: Abstraction has 12051 states and 17477 transitions. [2022-07-19 23:26:06,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-07-19 23:26:06,005 INFO L276 IsEmpty]: Start isEmpty. Operand 12051 states and 17477 transitions. [2022-07-19 23:26:06,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-07-19 23:26:06,008 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:26:06,008 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:26:06,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-19 23:26:06,009 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:26:06,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:26:06,009 INFO L85 PathProgramCache]: Analyzing trace with hash 765657261, now seen corresponding path program 1 times [2022-07-19 23:26:06,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:26:06,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348622531] [2022-07-19 23:26:06,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:26:06,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:26:06,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:26:06,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:26:06,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:26:06,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 23:26:06,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:26:06,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 23:26:06,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:26:06,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 23:26:06,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:26:06,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 23:26:06,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:26:06,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 23:26:06,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:26:06,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-19 23:26:06,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:26:06,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-19 23:26:06,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:26:06,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-19 23:26:06,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:26:06,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-19 23:26:06,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:26:06,303 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-07-19 23:26:06,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:26:06,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348622531] [2022-07-19 23:26:06,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348622531] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:26:06,305 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:26:06,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 23:26:06,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920399738] [2022-07-19 23:26:06,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:26:06,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 23:26:06,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:26:06,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 23:26:06,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 23:26:06,308 INFO L87 Difference]: Start difference. First operand 12051 states and 17477 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-07-19 23:26:07,664 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:26:08,888 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:26:11,412 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:26:14,088 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:26:16,400 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:26:19,650 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:26:23,232 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:26:25,261 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:26:27,314 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:26:28,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:26:28,300 INFO L93 Difference]: Finished difference Result 12450 states and 18232 transitions. [2022-07-19 23:26:28,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 23:26:28,301 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 85 [2022-07-19 23:26:28,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:26:28,362 INFO L225 Difference]: With dead ends: 12450 [2022-07-19 23:26:28,362 INFO L226 Difference]: Without dead ends: 12447 [2022-07-19 23:26:28,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 23:26:28,373 INFO L413 NwaCegarLoop]: 2915 mSDtfsCounter, 2413 mSDsluCounter, 3080 mSDsCounter, 0 mSdLazyCounter, 1527 mSolverCounterSat, 640 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2660 SdHoareTripleChecker+Valid, 5995 SdHoareTripleChecker+Invalid, 2171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 640 IncrementalHoareTripleChecker+Valid, 1527 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.8s IncrementalHoareTripleChecker+Time [2022-07-19 23:26:28,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2660 Valid, 5995 Invalid, 2171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [640 Valid, 1527 Invalid, 4 Unknown, 0 Unchecked, 21.8s Time] [2022-07-19 23:26:28,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12447 states. [2022-07-19 23:26:28,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12447 to 12052. [2022-07-19 23:26:28,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12052 states, 9109 states have (on average 1.3778680425952354) internal successors, (12551), 9245 states have internal predecessors, (12551), 2358 states have call successors, (2358), 561 states have call predecessors, (2358), 584 states have return successors, (2569), 2329 states have call predecessors, (2569), 2353 states have call successors, (2569) [2022-07-19 23:26:28,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12052 states to 12052 states and 17478 transitions. [2022-07-19 23:26:28,763 INFO L78 Accepts]: Start accepts. Automaton has 12052 states and 17478 transitions. Word has length 85 [2022-07-19 23:26:28,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:26:28,763 INFO L495 AbstractCegarLoop]: Abstraction has 12052 states and 17478 transitions. [2022-07-19 23:26:28,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-07-19 23:26:28,764 INFO L276 IsEmpty]: Start isEmpty. Operand 12052 states and 17478 transitions. [2022-07-19 23:26:28,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-07-19 23:26:28,770 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:26:28,770 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:26:28,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-19 23:26:28,771 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:26:28,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:26:28,771 INFO L85 PathProgramCache]: Analyzing trace with hash -2035005883, now seen corresponding path program 1 times [2022-07-19 23:26:28,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:26:28,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070873551] [2022-07-19 23:26:28,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:26:28,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:26:28,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:26:28,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:26:28,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:26:28,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 23:26:28,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:26:28,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 23:26:28,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:26:28,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 23:26:29,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:26:29,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 23:26:29,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:26:29,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 23:26:29,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:26:29,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-19 23:26:29,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:26:29,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-19 23:26:29,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:26:29,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-19 23:26:29,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:26:29,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-19 23:26:29,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:26:29,064 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-07-19 23:26:29,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:26:29,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070873551] [2022-07-19 23:26:29,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070873551] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:26:29,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:26:29,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 23:26:29,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344960514] [2022-07-19 23:26:29,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:26:29,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 23:26:29,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:26:29,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 23:26:29,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 23:26:29,066 INFO L87 Difference]: Start difference. First operand 12052 states and 17478 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-07-19 23:26:31,230 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:26:32,683 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:26:34,709 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:26:38,777 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:26:42,565 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:26:44,372 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:26:46,497 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:26:47,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:26:47,340 INFO L93 Difference]: Finished difference Result 12446 states and 18228 transitions. [2022-07-19 23:26:47,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-19 23:26:47,341 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 86 [2022-07-19 23:26:47,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:26:47,397 INFO L225 Difference]: With dead ends: 12446 [2022-07-19 23:26:47,398 INFO L226 Difference]: Without dead ends: 12443 [2022-07-19 23:26:47,409 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 23:26:47,411 INFO L413 NwaCegarLoop]: 2161 mSDtfsCounter, 2214 mSDsluCounter, 1063 mSDsCounter, 0 mSdLazyCounter, 676 mSolverCounterSat, 408 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2450 SdHoareTripleChecker+Valid, 3224 SdHoareTripleChecker+Invalid, 1089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 408 IncrementalHoareTripleChecker+Valid, 676 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.1s IncrementalHoareTripleChecker+Time [2022-07-19 23:26:47,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2450 Valid, 3224 Invalid, 1089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [408 Valid, 676 Invalid, 5 Unknown, 0 Unchecked, 18.1s Time] [2022-07-19 23:26:47,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12443 states. [2022-07-19 23:26:47,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12443 to 12051. [2022-07-19 23:26:47,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12051 states, 9109 states have (on average 1.3777582610604897) internal successors, (12550), 9244 states have internal predecessors, (12550), 2357 states have call successors, (2357), 561 states have call predecessors, (2357), 584 states have return successors, (2569), 2329 states have call predecessors, (2569), 2353 states have call successors, (2569) [2022-07-19 23:26:47,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12051 states to 12051 states and 17476 transitions. [2022-07-19 23:26:47,803 INFO L78 Accepts]: Start accepts. Automaton has 12051 states and 17476 transitions. Word has length 86 [2022-07-19 23:26:47,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:26:47,804 INFO L495 AbstractCegarLoop]: Abstraction has 12051 states and 17476 transitions. [2022-07-19 23:26:47,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-07-19 23:26:47,805 INFO L276 IsEmpty]: Start isEmpty. Operand 12051 states and 17476 transitions. [2022-07-19 23:26:47,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-07-19 23:26:47,807 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:26:47,807 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:26:47,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-19 23:26:47,807 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:26:47,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:26:47,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1338754736, now seen corresponding path program 1 times [2022-07-19 23:26:47,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:26:47,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660969907] [2022-07-19 23:26:47,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:26:47,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:26:47,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:26:48,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:26:48,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:26:48,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 23:26:48,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:26:48,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 23:26:48,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:26:48,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 23:26:48,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:26:48,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 23:26:48,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:26:48,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 23:26:48,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:26:48,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-19 23:26:48,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:26:48,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-19 23:26:48,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:26:48,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-19 23:26:48,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:26:48,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-19 23:26:48,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:26:48,245 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-07-19 23:26:48,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:26:48,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660969907] [2022-07-19 23:26:48,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660969907] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:26:48,245 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:26:48,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 23:26:48,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102249818] [2022-07-19 23:26:48,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:26:48,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 23:26:48,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:26:48,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 23:26:48,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 23:26:48,248 INFO L87 Difference]: Start difference. First operand 12051 states and 17476 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-07-19 23:26:50,372 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:26:52,223 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:26:54,252 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:26:58,318 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:27:01,346 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:27:03,615 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:27:05,110 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:27:07,218 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:27:08,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:27:08,029 INFO L93 Difference]: Finished difference Result 12445 states and 18226 transitions. [2022-07-19 23:27:08,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-19 23:27:08,029 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 87 [2022-07-19 23:27:08,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:27:08,086 INFO L225 Difference]: With dead ends: 12445 [2022-07-19 23:27:08,086 INFO L226 Difference]: Without dead ends: 12433 [2022-07-19 23:27:08,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 23:27:08,100 INFO L413 NwaCegarLoop]: 2160 mSDtfsCounter, 2212 mSDsluCounter, 1064 mSDsCounter, 0 mSdLazyCounter, 674 mSolverCounterSat, 407 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2447 SdHoareTripleChecker+Valid, 3224 SdHoareTripleChecker+Invalid, 1086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 407 IncrementalHoareTripleChecker+Valid, 674 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.6s IncrementalHoareTripleChecker+Time [2022-07-19 23:27:08,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2447 Valid, 3224 Invalid, 1086 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [407 Valid, 674 Invalid, 5 Unknown, 0 Unchecked, 19.6s Time] [2022-07-19 23:27:08,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12433 states. [2022-07-19 23:27:08,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12433 to 12041. [2022-07-19 23:27:08,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12041 states, 9100 states have (on average 1.3776923076923078) internal successors, (12537), 9234 states have internal predecessors, (12537), 2356 states have call successors, (2356), 561 states have call predecessors, (2356), 584 states have return successors, (2569), 2329 states have call predecessors, (2569), 2353 states have call successors, (2569) [2022-07-19 23:27:08,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12041 states to 12041 states and 17462 transitions. [2022-07-19 23:27:08,731 INFO L78 Accepts]: Start accepts. Automaton has 12041 states and 17462 transitions. Word has length 87 [2022-07-19 23:27:08,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:27:08,732 INFO L495 AbstractCegarLoop]: Abstraction has 12041 states and 17462 transitions. [2022-07-19 23:27:08,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-07-19 23:27:08,732 INFO L276 IsEmpty]: Start isEmpty. Operand 12041 states and 17462 transitions. [2022-07-19 23:27:08,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-07-19 23:27:08,739 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:27:08,740 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2022-07-19 23:27:08,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-19 23:27:08,740 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:27:08,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:27:08,741 INFO L85 PathProgramCache]: Analyzing trace with hash 1696861401, now seen corresponding path program 1 times [2022-07-19 23:27:08,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:27:08,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296915155] [2022-07-19 23:27:08,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:27:08,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:27:08,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:27:08,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:27:08,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:27:08,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 23:27:08,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:27:08,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 23:27:08,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:27:08,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 23:27:08,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:27:08,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 23:27:08,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:27:08,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 23:27:08,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:27:08,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-19 23:27:08,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:27:08,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-19 23:27:08,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:27:08,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-19 23:27:08,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:27:08,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-19 23:27:08,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:27:08,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:27:08,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:27:08,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-19 23:27:08,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:27:09,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:27:09,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:27:09,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-19 23:27:09,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:27:09,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-19 23:27:09,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:27:09,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-19 23:27:09,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:27:09,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-19 23:27:09,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:27:09,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-19 23:27:09,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:27:09,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-19 23:27:09,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:27:09,043 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2022-07-19 23:27:09,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:27:09,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296915155] [2022-07-19 23:27:09,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296915155] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:27:09,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:27:09,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 23:27:09,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167333403] [2022-07-19 23:27:09,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:27:09,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 23:27:09,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:27:09,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 23:27:09,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-19 23:27:09,046 INFO L87 Difference]: Start difference. First operand 12041 states and 17462 transitions. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-19 23:27:11,310 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:27:12,516 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:27:14,606 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:27:16,404 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:27:19,023 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:27:20,488 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:27:23,390 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:27:25,394 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:27:27,816 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:27:29,850 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:27:33,655 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:27:37,476 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:27:39,803 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:27:46,219 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:27:51,773 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:27:53,270 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:27:55,197 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:27:56,886 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:27:58,928 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:28:00,960 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:28:02,987 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:28:05,698 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:28:08,212 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:28:09,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:28:09,094 INFO L93 Difference]: Finished difference Result 33508 states and 48877 transitions. [2022-07-19 23:28:09,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-19 23:28:09,095 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 151 [2022-07-19 23:28:09,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:28:09,200 INFO L225 Difference]: With dead ends: 33508 [2022-07-19 23:28:09,201 INFO L226 Difference]: Without dead ends: 21490 [2022-07-19 23:28:09,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-07-19 23:28:09,263 INFO L413 NwaCegarLoop]: 2148 mSDtfsCounter, 3623 mSDsluCounter, 2377 mSDsCounter, 0 mSdLazyCounter, 4834 mSolverCounterSat, 1718 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 57.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3836 SdHoareTripleChecker+Valid, 4525 SdHoareTripleChecker+Invalid, 6565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1718 IncrementalHoareTripleChecker+Valid, 4834 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 59.5s IncrementalHoareTripleChecker+Time [2022-07-19 23:28:09,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3836 Valid, 4525 Invalid, 6565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1718 Valid, 4834 Invalid, 13 Unknown, 0 Unchecked, 59.5s Time] [2022-07-19 23:28:09,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21490 states. [2022-07-19 23:28:09,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21490 to 20512. [2022-07-19 23:28:09,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20512 states, 15553 states have (on average 1.3858419597505305) internal successors, (21554), 15791 states have internal predecessors, (21554), 3913 states have call successors, (3913), 994 states have call predecessors, (3913), 1045 states have return successors, (4274), 3862 states have call predecessors, (4274), 3910 states have call successors, (4274) [2022-07-19 23:28:10,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20512 states to 20512 states and 29741 transitions. [2022-07-19 23:28:10,084 INFO L78 Accepts]: Start accepts. Automaton has 20512 states and 29741 transitions. Word has length 151 [2022-07-19 23:28:10,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:28:10,084 INFO L495 AbstractCegarLoop]: Abstraction has 20512 states and 29741 transitions. [2022-07-19 23:28:10,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-19 23:28:10,085 INFO L276 IsEmpty]: Start isEmpty. Operand 20512 states and 29741 transitions. [2022-07-19 23:28:10,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-07-19 23:28:10,099 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:28:10,099 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:28:10,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-19 23:28:10,100 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:28:10,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:28:10,100 INFO L85 PathProgramCache]: Analyzing trace with hash -613904597, now seen corresponding path program 1 times [2022-07-19 23:28:10,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:28:10,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393096282] [2022-07-19 23:28:10,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:28:10,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:28:10,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:28:10,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:28:10,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:28:10,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 23:28:10,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:28:10,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 23:28:10,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:28:10,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 23:28:10,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:28:10,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 23:28:10,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:28:10,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 23:28:10,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:28:10,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-19 23:28:10,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:28:10,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-19 23:28:10,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:28:10,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-19 23:28:10,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:28:10,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-19 23:28:10,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:28:10,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-19 23:28:10,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:28:10,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:28:10,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:28:10,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-19 23:28:10,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:28:10,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:28:10,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:28:10,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-19 23:28:10,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:28:10,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-19 23:28:10,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:28:10,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-19 23:28:10,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:28:10,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-19 23:28:10,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:28:10,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-19 23:28:10,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:28:10,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-19 23:28:10,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:28:10,392 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2022-07-19 23:28:10,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:28:10,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393096282] [2022-07-19 23:28:10,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393096282] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:28:10,393 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:28:10,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 23:28:10,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048252635] [2022-07-19 23:28:10,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:28:10,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 23:28:10,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:28:10,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 23:28:10,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-19 23:28:10,395 INFO L87 Difference]: Start difference. First operand 20512 states and 29741 transitions. Second operand has 6 states, 6 states have (on average 16.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-19 23:28:11,986 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:28:14,156 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:28:16,180 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []