./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--mousedev.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-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--mousedev.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 d256a8b259faad28b260c065eb5db63197c2a9358a88ea40fe4f65cbd4165ef2 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-20 00:40:02,413 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 00:40:02,422 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 00:40:02,460 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 00:40:02,461 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 00:40:02,462 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 00:40:02,464 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 00:40:02,465 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 00:40:02,467 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 00:40:02,468 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 00:40:02,468 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 00:40:02,469 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 00:40:02,470 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 00:40:02,471 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 00:40:02,472 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 00:40:02,473 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 00:40:02,473 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 00:40:02,474 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 00:40:02,476 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 00:40:02,477 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 00:40:02,479 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 00:40:02,480 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 00:40:02,481 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 00:40:02,482 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 00:40:02,483 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 00:40:02,485 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 00:40:02,486 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 00:40:02,486 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 00:40:02,487 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 00:40:02,487 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 00:40:02,488 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 00:40:02,489 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 00:40:02,489 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 00:40:02,490 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 00:40:02,491 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 00:40:02,492 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 00:40:02,492 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 00:40:02,493 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 00:40:02,493 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 00:40:02,493 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 00:40:02,494 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 00:40:02,495 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 00:40:02,496 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-20 00:40:02,515 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 00:40:02,515 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 00:40:02,516 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 00:40:02,516 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 00:40:02,517 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 00:40:02,517 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 00:40:02,517 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 00:40:02,518 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 00:40:02,518 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 00:40:02,518 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 00:40:02,518 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-20 00:40:02,518 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 00:40:02,519 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-20 00:40:02,519 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 00:40:02,519 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-20 00:40:02,519 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-20 00:40:02,520 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 00:40:02,520 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-20 00:40:02,520 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 00:40:02,520 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 00:40:02,520 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 00:40:02,521 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 00:40:02,521 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 00:40:02,521 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 00:40:02,521 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-20 00:40:02,521 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-20 00:40:02,522 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-20 00:40:02,522 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-20 00:40:02,522 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-20 00:40:02,522 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-20 00:40:02,522 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d256a8b259faad28b260c065eb5db63197c2a9358a88ea40fe4f65cbd4165ef2 [2022-07-20 00:40:02,799 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 00:40:02,829 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 00:40:02,832 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 00:40:02,833 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 00:40:02,834 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 00:40:02,835 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--mousedev.ko-entry_point.cil.out.i [2022-07-20 00:40:02,915 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/118292074/763638401f5044bebc1994730192f18d/FLAGb234abe15 [2022-07-20 00:40:03,639 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 00:40:03,640 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--mousedev.ko-entry_point.cil.out.i [2022-07-20 00:40:03,684 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/118292074/763638401f5044bebc1994730192f18d/FLAGb234abe15 [2022-07-20 00:40:03,762 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/118292074/763638401f5044bebc1994730192f18d [2022-07-20 00:40:03,765 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 00:40:03,767 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 00:40:03,769 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 00:40:03,769 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 00:40:03,772 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 00:40:03,773 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 12:40:03" (1/1) ... [2022-07-20 00:40:03,774 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79fb03c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:40:03, skipping insertion in model container [2022-07-20 00:40:03,775 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 12:40:03" (1/1) ... [2022-07-20 00:40:03,781 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 00:40:03,875 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 00:40:05,276 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--mousedev.ko-entry_point.cil.out.i[159905,159918] [2022-07-20 00:40:05,414 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 00:40:05,447 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 00:40:05,616 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--mousedev.ko-entry_point.cil.out.i[159905,159918] [2022-07-20 00:40:05,643 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 00:40:05,746 INFO L208 MainTranslator]: Completed translation [2022-07-20 00:40:05,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:40:05 WrapperNode [2022-07-20 00:40:05,748 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-20 00:40:05,749 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-20 00:40:05,750 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-20 00:40:05,750 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-20 00:40:05,756 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:40:05" (1/1) ... [2022-07-20 00:40:05,826 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:40:05" (1/1) ... [2022-07-20 00:40:05,946 INFO L137 Inliner]: procedures = 259, calls = 1102, calls flagged for inlining = 115, calls inlined = 111, statements flattened = 2824 [2022-07-20 00:40:05,947 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-20 00:40:05,948 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-20 00:40:05,948 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-20 00:40:05,948 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-20 00:40:05,956 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:40:05" (1/1) ... [2022-07-20 00:40:05,957 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:40:05" (1/1) ... [2022-07-20 00:40:05,985 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:40:05" (1/1) ... [2022-07-20 00:40:05,988 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:40:05" (1/1) ... [2022-07-20 00:40:06,071 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:40:05" (1/1) ... [2022-07-20 00:40:06,120 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:40:05" (1/1) ... [2022-07-20 00:40:06,159 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:40:05" (1/1) ... [2022-07-20 00:40:06,183 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-20 00:40:06,184 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-20 00:40:06,184 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-20 00:40:06,185 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-20 00:40:06,186 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:40:05" (1/1) ... [2022-07-20 00:40:06,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 00:40:06,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 00:40:06,221 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) [2022-07-20 00:40:06,244 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 [2022-07-20 00:40:06,259 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-20 00:40:06,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-20 00:40:06,259 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-20 00:40:06,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-20 00:40:06,260 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_create [2022-07-20 00:40:06,260 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_create [2022-07-20 00:40:06,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-20 00:40:06,261 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-20 00:40:06,261 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-07-20 00:40:06,261 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-07-20 00:40:06,261 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-20 00:40:06,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-20 00:40:06,262 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-20 00:40:06,262 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-20 00:40:06,262 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_event [2022-07-20 00:40:06,262 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_event [2022-07-20 00:40:06,262 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-20 00:40:06,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-20 00:40:06,262 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_packet [2022-07-20 00:40:06,263 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_packet [2022-07-20 00:40:06,263 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-07-20 00:40:06,263 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-07-20 00:40:06,263 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-20 00:40:06,263 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-20 00:40:06,263 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-20 00:40:06,264 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-20 00:40:06,264 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-07-20 00:40:06,264 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-07-20 00:40:06,264 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_notify_readers [2022-07-20 00:40:06,264 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_notify_readers [2022-07-20 00:40:06,264 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-20 00:40:06,264 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-20 00:40:06,265 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-20 00:40:06,265 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-20 00:40:06,265 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-20 00:40:06,265 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_close_device [2022-07-20 00:40:06,265 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_close_device [2022-07-20 00:40:06,265 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-20 00:40:06,266 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_fasync [2022-07-20 00:40:06,266 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_fasync [2022-07-20 00:40:06,266 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2022-07-20 00:40:06,266 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2022-07-20 00:40:06,266 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_mousedev [2022-07-20 00:40:06,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_mousedev [2022-07-20 00:40:06,267 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_poll [2022-07-20 00:40:06,267 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_poll [2022-07-20 00:40:06,267 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-20 00:40:06,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-20 00:40:06,267 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2022-07-20 00:40:06,268 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2022-07-20 00:40:06,268 INFO L130 BoogieDeclarations]: Found specification of procedure input_abs_get_min [2022-07-20 00:40:06,268 INFO L138 BoogieDeclarations]: Found implementation of procedure input_abs_get_min [2022-07-20 00:40:06,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-20 00:40:06,268 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_destroy [2022-07-20 00:40:06,269 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_destroy [2022-07-20 00:40:06,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-20 00:40:06,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_2 [2022-07-20 00:40:06,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_2 [2022-07-20 00:40:06,270 INFO L130 BoogieDeclarations]: Found specification of procedure put_device [2022-07-20 00:40:06,271 INFO L138 BoogieDeclarations]: Found implementation of procedure put_device [2022-07-20 00:40:06,271 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2022-07-20 00:40:06,271 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2022-07-20 00:40:06,271 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_limit_delta [2022-07-20 00:40:06,271 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_limit_delta [2022-07-20 00:40:06,272 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-20 00:40:06,272 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-20 00:40:06,272 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-20 00:40:06,272 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-20 00:40:06,272 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-20 00:40:06,272 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-20 00:40:06,272 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-20 00:40:06,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-20 00:40:06,273 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-20 00:40:06,274 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_key_event [2022-07-20 00:40:06,274 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_key_event [2022-07-20 00:40:06,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-20 00:40:06,274 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-20 00:40:06,274 INFO L130 BoogieDeclarations]: Found specification of procedure get_device [2022-07-20 00:40:06,274 INFO L138 BoogieDeclarations]: Found implementation of procedure get_device [2022-07-20 00:40:06,275 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-20 00:40:06,275 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-20 00:40:06,275 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2022-07-20 00:40:06,275 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2022-07-20 00:40:06,276 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-20 00:40:06,276 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-20 00:40:06,276 INFO L130 BoogieDeclarations]: Found specification of procedure kill_fasync [2022-07-20 00:40:06,276 INFO L138 BoogieDeclarations]: Found implementation of procedure kill_fasync [2022-07-20 00:40:06,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-20 00:40:06,277 INFO L130 BoogieDeclarations]: Found specification of procedure input_close_device [2022-07-20 00:40:06,277 INFO L138 BoogieDeclarations]: Found implementation of procedure input_close_device [2022-07-20 00:40:06,277 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-07-20 00:40:06,277 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-07-20 00:40:06,278 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2022-07-20 00:40:06,278 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2022-07-20 00:40:06,278 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-20 00:40:06,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-20 00:40:06,279 INFO L130 BoogieDeclarations]: Found specification of procedure input_get_new_minor [2022-07-20 00:40:06,279 INFO L138 BoogieDeclarations]: Found implementation of procedure input_get_new_minor [2022-07-20 00:40:06,279 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-20 00:40:06,280 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-20 00:40:06,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-20 00:40:06,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-20 00:40:06,280 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_write [2022-07-20 00:40:06,280 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_write [2022-07-20 00:40:06,281 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-20 00:40:06,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-20 00:40:06,281 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_handle [2022-07-20 00:40:06,281 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_handle [2022-07-20 00:40:06,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-20 00:40:06,281 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-07-20 00:40:06,282 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-07-20 00:40:06,282 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-20 00:40:06,282 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_mousedev [2022-07-20 00:40:06,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_mousedev [2022-07-20 00:40:06,282 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-07-20 00:40:06,283 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-07-20 00:40:06,283 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_detach_client [2022-07-20 00:40:06,283 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_detach_client [2022-07-20 00:40:06,284 INFO L130 BoogieDeclarations]: Found specification of procedure input_abs_get_max [2022-07-20 00:40:06,286 INFO L138 BoogieDeclarations]: Found implementation of procedure input_abs_get_max [2022-07-20 00:40:06,286 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-07-20 00:40:06,286 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-07-20 00:40:06,286 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-07-20 00:40:06,287 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-07-20 00:40:06,288 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_minor [2022-07-20 00:40:06,288 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_minor [2022-07-20 00:40:06,288 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_cleanup [2022-07-20 00:40:06,288 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_cleanup [2022-07-20 00:40:06,293 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_open_device [2022-07-20 00:40:06,294 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_open_device [2022-07-20 00:40:06,294 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_disconnect [2022-07-20 00:40:06,294 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_disconnect [2022-07-20 00:40:06,294 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_mousedev [2022-07-20 00:40:06,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_mousedev [2022-07-20 00:40:06,294 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-20 00:40:06,295 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-20 00:40:06,295 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-20 00:40:06,295 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-20 00:40:06,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-20 00:40:06,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-20 00:40:06,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-20 00:40:06,296 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-20 00:40:06,296 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-20 00:40:06,781 INFO L234 CfgBuilder]: Building ICFG [2022-07-20 00:40:06,785 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-20 00:40:07,071 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-20 00:40:13,614 INFO L275 CfgBuilder]: Performing block encoding [2022-07-20 00:40:13,638 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-20 00:40:13,644 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-20 00:40:13,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 12:40:13 BoogieIcfgContainer [2022-07-20 00:40:13,649 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-20 00:40:13,650 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-20 00:40:13,652 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-20 00:40:13,655 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-20 00:40:13,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 12:40:03" (1/3) ... [2022-07-20 00:40:13,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e7a4f1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 12:40:13, skipping insertion in model container [2022-07-20 00:40:13,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:40:05" (2/3) ... [2022-07-20 00:40:13,657 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e7a4f1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 12:40:13, skipping insertion in model container [2022-07-20 00:40:13,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 12:40:13" (3/3) ... [2022-07-20 00:40:13,660 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--input--mousedev.ko-entry_point.cil.out.i [2022-07-20 00:40:13,674 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-20 00:40:13,674 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-20 00:40:13,762 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-20 00:40:13,767 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@47dc302f, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1021864f [2022-07-20 00:40:13,768 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-20 00:40:13,775 INFO L276 IsEmpty]: Start isEmpty. Operand has 983 states, 724 states have (on average 1.3798342541436464) internal successors, (999), 756 states have internal predecessors, (999), 195 states have call successors, (195), 63 states have call predecessors, (195), 62 states have return successors, (191), 188 states have call predecessors, (191), 191 states have call successors, (191) [2022-07-20 00:40:13,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-07-20 00:40:13,790 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:40:13,791 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:40:13,791 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:40:13,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:40:13,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1621751037, now seen corresponding path program 1 times [2022-07-20 00:40:13,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:40:13,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565293989] [2022-07-20 00:40:13,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:40:13,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:40:14,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:14,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:40:14,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:14,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:14,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:14,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:14,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:14,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:40:14,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:14,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:14,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:14,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:14,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:14,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 00:40:14,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:14,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:14,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:14,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:14,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:14,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 00:40:14,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:14,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:14,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:14,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:14,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:14,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-20 00:40:14,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:14,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:14,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:14,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:14,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:14,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 00:40:14,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:14,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:14,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:14,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:14,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:14,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-20 00:40:14,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:14,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:14,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:14,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:14,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:14,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-20 00:40:14,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:14,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:14,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:14,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:14,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:14,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-20 00:40:14,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:14,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:14,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:14,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-20 00:40:14,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:14,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:14,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:14,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-20 00:40:14,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:14,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:14,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:14,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-20 00:40:14,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:14,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:14,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:14,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-20 00:40:14,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:14,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:14,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:14,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-20 00:40:14,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:14,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:14,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:14,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-20 00:40:14,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:14,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:14,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:14,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-20 00:40:14,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:14,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:14,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:14,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-20 00:40:14,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:14,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:14,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:14,837 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 716 trivial. 0 not checked. [2022-07-20 00:40:14,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:40:14,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565293989] [2022-07-20 00:40:14,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565293989] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:40:14,842 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:40:14,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-20 00:40:14,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450069653] [2022-07-20 00:40:14,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:40:14,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 00:40:14,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:40:14,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 00:40:14,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 00:40:14,886 INFO L87 Difference]: Start difference. First operand has 983 states, 724 states have (on average 1.3798342541436464) internal successors, (999), 756 states have internal predecessors, (999), 195 states have call successors, (195), 63 states have call predecessors, (195), 62 states have return successors, (191), 188 states have call predecessors, (191), 191 states have call successors, (191) Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-20 00:40:16,922 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 [] [2022-07-20 00:40:18,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:40:18,863 INFO L93 Difference]: Finished difference Result 2027 states and 2935 transitions. [2022-07-20 00:40:18,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 00:40:18,868 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 244 [2022-07-20 00:40:18,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:40:18,888 INFO L225 Difference]: With dead ends: 2027 [2022-07-20 00:40:18,888 INFO L226 Difference]: Without dead ends: 1038 [2022-07-20 00:40:18,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-07-20 00:40:18,907 INFO L413 NwaCegarLoop]: 1284 mSDtfsCounter, 1106 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 760 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1117 SdHoareTripleChecker+Valid, 1882 SdHoareTripleChecker+Invalid, 1154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 760 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-07-20 00:40:18,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1117 Valid, 1882 Invalid, 1154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [760 Valid, 393 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2022-07-20 00:40:18,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1038 states. [2022-07-20 00:40:19,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1038 to 972. [2022-07-20 00:40:19,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 972 states, 719 states have (on average 1.3657858136300418) internal successors, (982), 745 states have internal predecessors, (982), 191 states have call successors, (191), 62 states have call predecessors, (191), 61 states have return successors, (184), 181 states have call predecessors, (184), 184 states have call successors, (184) [2022-07-20 00:40:19,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 972 states to 972 states and 1357 transitions. [2022-07-20 00:40:19,014 INFO L78 Accepts]: Start accepts. Automaton has 972 states and 1357 transitions. Word has length 244 [2022-07-20 00:40:19,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:40:19,015 INFO L495 AbstractCegarLoop]: Abstraction has 972 states and 1357 transitions. [2022-07-20 00:40:19,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-20 00:40:19,019 INFO L276 IsEmpty]: Start isEmpty. Operand 972 states and 1357 transitions. [2022-07-20 00:40:19,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-07-20 00:40:19,029 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:40:19,029 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:40:19,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-20 00:40:19,030 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:40:19,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:40:19,030 INFO L85 PathProgramCache]: Analyzing trace with hash -1484346605, now seen corresponding path program 1 times [2022-07-20 00:40:19,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:40:19,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057182897] [2022-07-20 00:40:19,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:40:19,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:40:19,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:40:19,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:19,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:19,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:40:19,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:19,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:19,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 00:40:19,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:19,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:19,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 00:40:19,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:19,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:19,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-20 00:40:19,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:19,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:19,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 00:40:19,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:19,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:19,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-20 00:40:19,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:19,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:19,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-20 00:40:19,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:19,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:19,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-20 00:40:19,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:19,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-20 00:40:19,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:19,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-20 00:40:19,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:19,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-20 00:40:19,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:19,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-20 00:40:19,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:19,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-20 00:40:19,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:19,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-20 00:40:19,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:19,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-20 00:40:19,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:19,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-20 00:40:19,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:19,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,599 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 716 trivial. 0 not checked. [2022-07-20 00:40:19,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:40:19,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057182897] [2022-07-20 00:40:19,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057182897] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:40:19,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:40:19,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 00:40:19,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941586133] [2022-07-20 00:40:19,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:40:19,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 00:40:19,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:40:19,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 00:40:19,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-20 00:40:19,613 INFO L87 Difference]: Start difference. First operand 972 states and 1357 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2022-07-20 00:40:21,628 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:40:24,794 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:40:25,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:40:25,786 INFO L93 Difference]: Finished difference Result 2619 states and 3631 transitions. [2022-07-20 00:40:25,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 00:40:25,787 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 244 [2022-07-20 00:40:25,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:40:25,797 INFO L225 Difference]: With dead ends: 2619 [2022-07-20 00:40:25,798 INFO L226 Difference]: Without dead ends: 1689 [2022-07-20 00:40:25,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-20 00:40:25,802 INFO L413 NwaCegarLoop]: 1410 mSDtfsCounter, 2312 mSDsluCounter, 1442 mSDsCounter, 0 mSdLazyCounter, 1024 mSolverCounterSat, 1242 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2402 SdHoareTripleChecker+Valid, 2852 SdHoareTripleChecker+Invalid, 2267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1242 IncrementalHoareTripleChecker+Valid, 1024 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-07-20 00:40:25,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2402 Valid, 2852 Invalid, 2267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1242 Valid, 1024 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-07-20 00:40:25,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1689 states. [2022-07-20 00:40:25,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1689 to 1557. [2022-07-20 00:40:25,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1557 states, 1146 states have (on average 1.344677137870855) internal successors, (1541), 1185 states have internal predecessors, (1541), 301 states have call successors, (301), 110 states have call predecessors, (301), 109 states have return successors, (294), 289 states have call predecessors, (294), 294 states have call successors, (294) [2022-07-20 00:40:25,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1557 states to 1557 states and 2136 transitions. [2022-07-20 00:40:25,879 INFO L78 Accepts]: Start accepts. Automaton has 1557 states and 2136 transitions. Word has length 244 [2022-07-20 00:40:25,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:40:25,882 INFO L495 AbstractCegarLoop]: Abstraction has 1557 states and 2136 transitions. [2022-07-20 00:40:25,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2022-07-20 00:40:25,883 INFO L276 IsEmpty]: Start isEmpty. Operand 1557 states and 2136 transitions. [2022-07-20 00:40:25,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2022-07-20 00:40:25,887 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:40:25,888 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:40:25,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-20 00:40:25,888 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:40:25,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:40:25,889 INFO L85 PathProgramCache]: Analyzing trace with hash 2035960161, now seen corresponding path program 1 times [2022-07-20 00:40:25,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:40:25,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863016649] [2022-07-20 00:40:25,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:40:25,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:40:25,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:40:26,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:26,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:26,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:40:26,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:26,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:26,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 00:40:26,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:26,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:26,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 00:40:26,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:26,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:26,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-20 00:40:26,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:26,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:26,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 00:40:26,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:26,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:26,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-20 00:40:26,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:26,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:26,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-20 00:40:26,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:26,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:26,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-20 00:40:26,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:26,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-20 00:40:26,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:26,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-20 00:40:26,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:26,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-20 00:40:26,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:26,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-20 00:40:26,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:26,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-20 00:40:26,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:26,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-20 00:40:26,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:26,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-20 00:40:26,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:26,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-20 00:40:26,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:26,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,308 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 716 trivial. 0 not checked. [2022-07-20 00:40:26,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:40:26,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863016649] [2022-07-20 00:40:26,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863016649] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:40:26,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:40:26,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 00:40:26,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083601029] [2022-07-20 00:40:26,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:40:26,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 00:40:26,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:40:26,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 00:40:26,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-20 00:40:26,311 INFO L87 Difference]: Start difference. First operand 1557 states and 2136 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2022-07-20 00:40:28,330 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:40:30,340 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:40:32,348 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:40:35,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:40:35,954 INFO L93 Difference]: Finished difference Result 4656 states and 6417 transitions. [2022-07-20 00:40:35,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 00:40:35,955 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 249 [2022-07-20 00:40:35,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:40:35,977 INFO L225 Difference]: With dead ends: 4656 [2022-07-20 00:40:35,978 INFO L226 Difference]: Without dead ends: 3145 [2022-07-20 00:40:35,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-20 00:40:35,987 INFO L413 NwaCegarLoop]: 1878 mSDtfsCounter, 2101 mSDsluCounter, 2374 mSDsCounter, 0 mSdLazyCounter, 1615 mSolverCounterSat, 912 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2214 SdHoareTripleChecker+Valid, 4252 SdHoareTripleChecker+Invalid, 2530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 912 IncrementalHoareTripleChecker+Valid, 1615 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2022-07-20 00:40:35,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2214 Valid, 4252 Invalid, 2530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [912 Valid, 1615 Invalid, 3 Unknown, 0 Unchecked, 9.4s Time] [2022-07-20 00:40:35,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3145 states. [2022-07-20 00:40:36,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3145 to 2921. [2022-07-20 00:40:36,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2921 states, 2161 states have (on average 1.3489125404905136) internal successors, (2915), 2228 states have internal predecessors, (2915), 548 states have call successors, (548), 212 states have call predecessors, (548), 211 states have return successors, (541), 532 states have call predecessors, (541), 541 states have call successors, (541) [2022-07-20 00:40:36,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2921 states to 2921 states and 4004 transitions. [2022-07-20 00:40:36,132 INFO L78 Accepts]: Start accepts. Automaton has 2921 states and 4004 transitions. Word has length 249 [2022-07-20 00:40:36,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:40:36,133 INFO L495 AbstractCegarLoop]: Abstraction has 2921 states and 4004 transitions. [2022-07-20 00:40:36,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2022-07-20 00:40:36,134 INFO L276 IsEmpty]: Start isEmpty. Operand 2921 states and 4004 transitions. [2022-07-20 00:40:36,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2022-07-20 00:40:36,139 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:40:36,139 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:40:36,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-20 00:40:36,140 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:40:36,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:40:36,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1917858630, now seen corresponding path program 1 times [2022-07-20 00:40:36,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:40:36,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207806184] [2022-07-20 00:40:36,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:40:36,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:40:36,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:40:36,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:36,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:36,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:40:36,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:36,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:36,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 00:40:36,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:36,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:36,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 00:40:36,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:36,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:36,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-20 00:40:36,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:36,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:36,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 00:40:36,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:36,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:36,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-20 00:40:36,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:36,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:36,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-20 00:40:36,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:36,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:36,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-20 00:40:36,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:36,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-20 00:40:36,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:36,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-20 00:40:36,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:36,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-20 00:40:36,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:36,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-20 00:40:36,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:36,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-20 00:40:36,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:36,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-20 00:40:36,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:36,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-20 00:40:36,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:36,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-20 00:40:36,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:36,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-07-20 00:40:36,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:36,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-20 00:40:36,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-20 00:40:36,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-07-20 00:40:36,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,578 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 716 trivial. 0 not checked. [2022-07-20 00:40:36,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:40:36,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207806184] [2022-07-20 00:40:36,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207806184] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:40:36,578 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:40:36,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-20 00:40:36,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815011936] [2022-07-20 00:40:36,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:40:36,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-20 00:40:36,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:40:36,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-20 00:40:36,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-07-20 00:40:36,581 INFO L87 Difference]: Start difference. First operand 2921 states and 4004 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-20 00:40:38,601 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 [] [2022-07-20 00:40:40,608 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:40:42,620 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:40:44,631 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:40:48,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:40:48,712 INFO L93 Difference]: Finished difference Result 7605 states and 10416 transitions. [2022-07-20 00:40:48,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-20 00:40:48,713 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 275 [2022-07-20 00:40:48,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:40:48,742 INFO L225 Difference]: With dead ends: 7605 [2022-07-20 00:40:48,742 INFO L226 Difference]: Without dead ends: 4740 [2022-07-20 00:40:48,754 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-07-20 00:40:48,755 INFO L413 NwaCegarLoop]: 1281 mSDtfsCounter, 2259 mSDsluCounter, 2529 mSDsCounter, 0 mSdLazyCounter, 2402 mSolverCounterSat, 1092 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2359 SdHoareTripleChecker+Valid, 3810 SdHoareTripleChecker+Invalid, 3498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1092 IncrementalHoareTripleChecker+Valid, 2402 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2022-07-20 00:40:48,756 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2359 Valid, 3810 Invalid, 3498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1092 Valid, 2402 Invalid, 4 Unknown, 0 Unchecked, 11.9s Time] [2022-07-20 00:40:48,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4740 states. [2022-07-20 00:40:48,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4740 to 4389. [2022-07-20 00:40:48,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4389 states, 3244 states have (on average 1.346794081381011) internal successors, (4369), 3345 states have internal predecessors, (4369), 802 states have call successors, (802), 347 states have call predecessors, (802), 342 states have return successors, (811), 764 states have call predecessors, (811), 795 states have call successors, (811) [2022-07-20 00:40:48,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4389 states to 4389 states and 5982 transitions. [2022-07-20 00:40:48,915 INFO L78 Accepts]: Start accepts. Automaton has 4389 states and 5982 transitions. Word has length 275 [2022-07-20 00:40:48,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:40:48,916 INFO L495 AbstractCegarLoop]: Abstraction has 4389 states and 5982 transitions. [2022-07-20 00:40:48,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-20 00:40:48,917 INFO L276 IsEmpty]: Start isEmpty. Operand 4389 states and 5982 transitions. [2022-07-20 00:40:48,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2022-07-20 00:40:48,920 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:40:48,920 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:40:48,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-20 00:40:48,921 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:40:48,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:40:48,921 INFO L85 PathProgramCache]: Analyzing trace with hash -423009600, now seen corresponding path program 1 times [2022-07-20 00:40:48,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:40:48,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157073324] [2022-07-20 00:40:48,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:40:48,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:40:49,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:49,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:40:49,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:49,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:49,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:49,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:49,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:49,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:40:49,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:49,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:49,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:49,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:49,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:49,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 00:40:49,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:49,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:49,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:49,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:49,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:49,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 00:40:49,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:49,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:49,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:49,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:49,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:49,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-20 00:40:49,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:49,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:49,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:49,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:49,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:49,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 00:40:49,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:49,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:49,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:49,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:49,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:49,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-20 00:40:49,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:49,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:49,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:49,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:49,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:49,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-20 00:40:49,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:49,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:49,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:49,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:49,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:49,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-20 00:40:49,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:49,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:49,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:49,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-20 00:40:49,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:49,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:49,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:49,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-20 00:40:49,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:49,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:49,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:49,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-20 00:40:49,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:49,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:49,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:49,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-20 00:40:49,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:49,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:49,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:49,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-20 00:40:49,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:49,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:49,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:49,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-20 00:40:49,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:49,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:49,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:49,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-20 00:40:49,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:49,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:49,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:49,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-20 00:40:49,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:49,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:49,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:49,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-20 00:40:49,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:49,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:40:49,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:49,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-07-20 00:40:49,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:49,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:49,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:49,552 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 716 trivial. 0 not checked. [2022-07-20 00:40:49,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:40:49,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157073324] [2022-07-20 00:40:49,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157073324] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:40:49,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:40:49,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-20 00:40:49,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851309587] [2022-07-20 00:40:49,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:40:49,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-20 00:40:49,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:40:49,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-20 00:40:49,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-07-20 00:40:49,557 INFO L87 Difference]: Start difference. First operand 4389 states and 5982 transitions. Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 4 states have internal predecessors, (71), 4 states have call successors, (28), 7 states have call predecessors, (28), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-07-20 00:40:51,573 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 [] [2022-07-20 00:40:53,579 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:40:55,589 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:41:00,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:41:00,148 INFO L93 Difference]: Finished difference Result 13050 states and 18031 transitions. [2022-07-20 00:41:00,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-20 00:41:00,152 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 4 states have internal predecessors, (71), 4 states have call successors, (28), 7 states have call predecessors, (28), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 278 [2022-07-20 00:41:00,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:41:00,197 INFO L225 Difference]: With dead ends: 13050 [2022-07-20 00:41:00,198 INFO L226 Difference]: Without dead ends: 8720 [2022-07-20 00:41:00,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-07-20 00:41:00,215 INFO L413 NwaCegarLoop]: 1282 mSDtfsCounter, 2594 mSDsluCounter, 1529 mSDsCounter, 0 mSdLazyCounter, 2820 mSolverCounterSat, 900 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2724 SdHoareTripleChecker+Valid, 2811 SdHoareTripleChecker+Invalid, 3723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 900 IncrementalHoareTripleChecker+Valid, 2820 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2022-07-20 00:41:00,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2724 Valid, 2811 Invalid, 3723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [900 Valid, 2820 Invalid, 3 Unknown, 0 Unchecked, 10.2s Time] [2022-07-20 00:41:00,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8720 states. [2022-07-20 00:41:00,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8720 to 8111. [2022-07-20 00:41:00,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8111 states, 6086 states have (on average 1.356720341767992) internal successors, (8257), 6278 states have internal predecessors, (8257), 1417 states have call successors, (1417), 637 states have call predecessors, (1417), 607 states have return successors, (1489), 1304 states have call predecessors, (1489), 1405 states have call successors, (1489) [2022-07-20 00:41:00,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8111 states to 8111 states and 11163 transitions. [2022-07-20 00:41:00,551 INFO L78 Accepts]: Start accepts. Automaton has 8111 states and 11163 transitions. Word has length 278 [2022-07-20 00:41:00,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:41:00,552 INFO L495 AbstractCegarLoop]: Abstraction has 8111 states and 11163 transitions. [2022-07-20 00:41:00,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 4 states have internal predecessors, (71), 4 states have call successors, (28), 7 states have call predecessors, (28), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-07-20 00:41:00,553 INFO L276 IsEmpty]: Start isEmpty. Operand 8111 states and 11163 transitions. [2022-07-20 00:41:00,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2022-07-20 00:41:00,556 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:41:00,557 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:41:00,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-20 00:41:00,557 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:41:00,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:41:00,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1539551512, now seen corresponding path program 1 times [2022-07-20 00:41:00,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:41:00,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483868871] [2022-07-20 00:41:00,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:41:00,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:41:00,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:00,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:41:00,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:00,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:00,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:00,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:41:00,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:00,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:41:00,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:00,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:00,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:00,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:41:00,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:00,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 00:41:00,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:00,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:00,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:00,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:41:00,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:00,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 00:41:00,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:00,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:00,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:00,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:41:00,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:00,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-20 00:41:00,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:00,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:00,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:00,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:41:00,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:00,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 00:41:00,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:00,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:00,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:00,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:41:00,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:00,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-20 00:41:00,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:00,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:00,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:00,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:41:00,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:00,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-20 00:41:00,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:00,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:00,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:00,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:41:00,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:00,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-20 00:41:00,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:00,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:00,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:00,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-20 00:41:00,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:00,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:00,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:00,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-20 00:41:00,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:00,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:00,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:00,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-20 00:41:00,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:00,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:00,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:00,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-20 00:41:00,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:00,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:00,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:00,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-20 00:41:00,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:00,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:00,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:01,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-20 00:41:01,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:01,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:01,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:01,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-20 00:41:01,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:01,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:01,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:01,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-20 00:41:01,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:01,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:01,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:01,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-20 00:41:01,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:01,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:41:01,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:01,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-07-20 00:41:01,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:01,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:01,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:01,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-07-20 00:41:01,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:01,086 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 716 trivial. 0 not checked. [2022-07-20 00:41:01,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:41:01,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483868871] [2022-07-20 00:41:01,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483868871] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:41:01,087 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:41:01,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-20 00:41:01,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132963581] [2022-07-20 00:41:01,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:41:01,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-20 00:41:01,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:41:01,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-20 00:41:01,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-07-20 00:41:01,090 INFO L87 Difference]: Start difference. First operand 8111 states and 11163 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (26), 6 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-20 00:41:03,106 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 [] [2022-07-20 00:41:05,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:41:05,451 INFO L93 Difference]: Finished difference Result 8629 states and 11927 transitions. [2022-07-20 00:41:05,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 00:41:05,452 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (26), 6 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 279 [2022-07-20 00:41:05,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:41:05,500 INFO L225 Difference]: With dead ends: 8629 [2022-07-20 00:41:05,501 INFO L226 Difference]: Without dead ends: 8626 [2022-07-20 00:41:05,508 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2022-07-20 00:41:05,509 INFO L413 NwaCegarLoop]: 1264 mSDtfsCounter, 2234 mSDsluCounter, 1013 mSDsCounter, 0 mSdLazyCounter, 806 mSolverCounterSat, 878 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2333 SdHoareTripleChecker+Valid, 2277 SdHoareTripleChecker+Invalid, 1685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 878 IncrementalHoareTripleChecker+Valid, 806 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-07-20 00:41:05,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2333 Valid, 2277 Invalid, 1685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [878 Valid, 806 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-07-20 00:41:05,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8626 states. [2022-07-20 00:41:05,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8626 to 8110. [2022-07-20 00:41:05,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8110 states, 6086 states have (on average 1.3563917186986527) internal successors, (8255), 6277 states have internal predecessors, (8255), 1416 states have call successors, (1416), 637 states have call predecessors, (1416), 607 states have return successors, (1489), 1304 states have call predecessors, (1489), 1405 states have call successors, (1489) [2022-07-20 00:41:05,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8110 states to 8110 states and 11160 transitions. [2022-07-20 00:41:05,907 INFO L78 Accepts]: Start accepts. Automaton has 8110 states and 11160 transitions. Word has length 279 [2022-07-20 00:41:05,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:41:05,907 INFO L495 AbstractCegarLoop]: Abstraction has 8110 states and 11160 transitions. [2022-07-20 00:41:05,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (26), 6 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-20 00:41:05,908 INFO L276 IsEmpty]: Start isEmpty. Operand 8110 states and 11160 transitions. [2022-07-20 00:41:05,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2022-07-20 00:41:05,915 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:41:05,915 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:41:05,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-20 00:41:05,916 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:41:05,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:41:05,916 INFO L85 PathProgramCache]: Analyzing trace with hash 481205686, now seen corresponding path program 1 times [2022-07-20 00:41:05,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:41:05,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932835373] [2022-07-20 00:41:05,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:41:05,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:41:06,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:06,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:41:06,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:06,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:06,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:06,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:41:06,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:06,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:41:06,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:06,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:06,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:06,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:41:06,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:06,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 00:41:06,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:06,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:06,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:06,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:41:06,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:06,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 00:41:06,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:06,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:06,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:06,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:41:06,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:06,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-20 00:41:06,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:06,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:06,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:06,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:41:06,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:06,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 00:41:06,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:06,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:06,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:06,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:41:06,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:06,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-20 00:41:06,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:06,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:06,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:06,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:41:06,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:06,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-20 00:41:06,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:06,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:06,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:06,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:41:06,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:06,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-20 00:41:06,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:06,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:06,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:06,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-20 00:41:06,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:06,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:06,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:06,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-20 00:41:06,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:06,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:06,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:06,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-20 00:41:06,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:06,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:06,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:06,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-20 00:41:06,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:06,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:06,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:06,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-20 00:41:06,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:06,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:06,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:06,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-20 00:41:06,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:06,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:06,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:06,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-20 00:41:06,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:06,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:06,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:06,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-20 00:41:06,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:06,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:06,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:06,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-20 00:41:06,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:06,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:41:06,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:06,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-07-20 00:41:06,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:06,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:06,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:06,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-07-20 00:41:06,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:06,392 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 716 trivial. 0 not checked. [2022-07-20 00:41:06,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:41:06,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932835373] [2022-07-20 00:41:06,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932835373] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:41:06,393 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:41:06,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-20 00:41:06,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005910894] [2022-07-20 00:41:06,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:41:06,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-20 00:41:06,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:41:06,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-20 00:41:06,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-07-20 00:41:06,396 INFO L87 Difference]: Start difference. First operand 8110 states and 11160 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (26), 6 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-20 00:41:08,413 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 [] [2022-07-20 00:41:10,418 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 [] [2022-07-20 00:41:13,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:41:13,152 INFO L93 Difference]: Finished difference Result 8628 states and 11924 transitions. [2022-07-20 00:41:13,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 00:41:13,152 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (26), 6 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 280 [2022-07-20 00:41:13,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:41:13,187 INFO L225 Difference]: With dead ends: 8628 [2022-07-20 00:41:13,187 INFO L226 Difference]: Without dead ends: 8625 [2022-07-20 00:41:13,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2022-07-20 00:41:13,191 INFO L413 NwaCegarLoop]: 1266 mSDtfsCounter, 1651 mSDsluCounter, 887 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 446 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1748 SdHoareTripleChecker+Valid, 2153 SdHoareTripleChecker+Invalid, 1464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 446 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-07-20 00:41:13,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1748 Valid, 2153 Invalid, 1464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [446 Valid, 1016 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2022-07-20 00:41:13,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8625 states. [2022-07-20 00:41:13,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8625 to 8109. [2022-07-20 00:41:13,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8109 states, 6086 states have (on average 1.3560630956293132) internal successors, (8253), 6276 states have internal predecessors, (8253), 1415 states have call successors, (1415), 637 states have call predecessors, (1415), 607 states have return successors, (1489), 1304 states have call predecessors, (1489), 1405 states have call successors, (1489) [2022-07-20 00:41:13,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8109 states to 8109 states and 11157 transitions. [2022-07-20 00:41:13,487 INFO L78 Accepts]: Start accepts. Automaton has 8109 states and 11157 transitions. Word has length 280 [2022-07-20 00:41:13,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:41:13,488 INFO L495 AbstractCegarLoop]: Abstraction has 8109 states and 11157 transitions. [2022-07-20 00:41:13,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (26), 6 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-20 00:41:13,488 INFO L276 IsEmpty]: Start isEmpty. Operand 8109 states and 11157 transitions. [2022-07-20 00:41:13,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2022-07-20 00:41:13,490 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:41:13,490 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:41:13,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-20 00:41:13,491 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:41:13,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:41:13,491 INFO L85 PathProgramCache]: Analyzing trace with hash 2032228315, now seen corresponding path program 1 times [2022-07-20 00:41:13,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:41:13,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889754096] [2022-07-20 00:41:13,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:41:13,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:41:13,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:13,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:41:13,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:13,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:13,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:13,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:41:13,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:13,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:41:13,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:13,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:13,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:13,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:41:13,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:13,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 00:41:13,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:13,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:13,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:13,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:41:13,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:13,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 00:41:13,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:13,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:13,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:13,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:41:13,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:13,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-20 00:41:13,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:13,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:13,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:13,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:41:13,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:13,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 00:41:13,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:13,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:13,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:13,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:41:13,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:13,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-20 00:41:13,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:13,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:13,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:13,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:41:13,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:13,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-20 00:41:13,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:13,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:13,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:13,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:41:13,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:13,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-20 00:41:13,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:13,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:13,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:13,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-20 00:41:13,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:13,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:13,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:13,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-20 00:41:13,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:13,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:13,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:13,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-20 00:41:13,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:13,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:13,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:13,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-20 00:41:13,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:13,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:13,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:13,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-20 00:41:13,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:13,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:13,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:13,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-20 00:41:13,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:13,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:13,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:13,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-20 00:41:13,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:13,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:13,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:13,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-20 00:41:13,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:13,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:13,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:13,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-20 00:41:13,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:13,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:41:13,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:13,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-07-20 00:41:13,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:13,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:13,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:14,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-07-20 00:41:14,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:14,007 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 716 trivial. 0 not checked. [2022-07-20 00:41:14,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:41:14,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889754096] [2022-07-20 00:41:14,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889754096] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:41:14,008 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:41:14,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-20 00:41:14,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444834109] [2022-07-20 00:41:14,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:41:14,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-20 00:41:14,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:41:14,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-20 00:41:14,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-07-20 00:41:14,010 INFO L87 Difference]: Start difference. First operand 8109 states and 11157 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (26), 6 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-20 00:41:16,028 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 [] [2022-07-20 00:41:18,037 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:41:21,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:41:21,123 INFO L93 Difference]: Finished difference Result 8627 states and 11921 transitions. [2022-07-20 00:41:21,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 00:41:21,124 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (26), 6 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 281 [2022-07-20 00:41:21,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:41:21,164 INFO L225 Difference]: With dead ends: 8627 [2022-07-20 00:41:21,164 INFO L226 Difference]: Without dead ends: 8581 [2022-07-20 00:41:21,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2022-07-20 00:41:21,175 INFO L413 NwaCegarLoop]: 1263 mSDtfsCounter, 1649 mSDsluCounter, 883 mSDsCounter, 0 mSdLazyCounter, 1015 mSolverCounterSat, 443 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1746 SdHoareTripleChecker+Valid, 2146 SdHoareTripleChecker+Invalid, 1460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 443 IncrementalHoareTripleChecker+Valid, 1015 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-07-20 00:41:21,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1746 Valid, 2146 Invalid, 1460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [443 Valid, 1015 Invalid, 2 Unknown, 0 Unchecked, 6.9s Time] [2022-07-20 00:41:21,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8581 states. [2022-07-20 00:41:21,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8581 to 8063. [2022-07-20 00:41:21,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8063 states, 6056 states have (on average 1.3561756935270806) internal successors, (8213), 6245 states have internal predecessors, (8213), 1406 states have call successors, (1406), 631 states have call predecessors, (1406), 600 states have return successors, (1469), 1294 states have call predecessors, (1469), 1385 states have call successors, (1469) [2022-07-20 00:41:21,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8063 states to 8063 states and 11088 transitions. [2022-07-20 00:41:21,523 INFO L78 Accepts]: Start accepts. Automaton has 8063 states and 11088 transitions. Word has length 281 [2022-07-20 00:41:21,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:41:21,524 INFO L495 AbstractCegarLoop]: Abstraction has 8063 states and 11088 transitions. [2022-07-20 00:41:21,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (26), 6 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-20 00:41:21,524 INFO L276 IsEmpty]: Start isEmpty. Operand 8063 states and 11088 transitions. [2022-07-20 00:41:21,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2022-07-20 00:41:21,526 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:41:21,526 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:41:21,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-20 00:41:21,527 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:41:21,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:41:21,528 INFO L85 PathProgramCache]: Analyzing trace with hash -121604085, now seen corresponding path program 1 times [2022-07-20 00:41:21,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:41:21,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205626671] [2022-07-20 00:41:21,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:41:21,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:41:21,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:21,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:41:21,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:21,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:21,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:21,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:41:21,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:21,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:41:21,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:21,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:21,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:21,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:41:21,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:21,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 00:41:21,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:21,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:21,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:21,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:41:21,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:21,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 00:41:21,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:21,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:21,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:21,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:41:21,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:21,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-20 00:41:21,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:21,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:21,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:21,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:41:21,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:21,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 00:41:21,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:21,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:21,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:21,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:41:21,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:21,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-20 00:41:21,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:21,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:21,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:21,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:41:21,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:21,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-20 00:41:21,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:21,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:21,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:21,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:41:21,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:21,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-20 00:41:21,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:21,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:21,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:21,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-20 00:41:21,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:21,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:21,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:21,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-20 00:41:21,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:21,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:21,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:21,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-20 00:41:21,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:21,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:21,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:21,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-20 00:41:21,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:21,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:21,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:21,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-20 00:41:21,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:21,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:21,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:21,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-20 00:41:21,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:21,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:21,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:21,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-20 00:41:21,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:21,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:21,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:21,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-20 00:41:21,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:21,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:21,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:21,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-20 00:41:21,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:21,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:41:21,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:21,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-07-20 00:41:21,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:21,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:21,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:22,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2022-07-20 00:41:22,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:22,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-07-20 00:41:22,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:22,020 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 716 trivial. 0 not checked. [2022-07-20 00:41:22,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:41:22,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205626671] [2022-07-20 00:41:22,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205626671] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:41:22,021 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:41:22,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-20 00:41:22,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226713056] [2022-07-20 00:41:22,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:41:22,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-20 00:41:22,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:41:22,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-20 00:41:22,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-07-20 00:41:22,023 INFO L87 Difference]: Start difference. First operand 8063 states and 11088 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (30), 8 states have call predecessors, (30), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-07-20 00:41:24,040 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 [] [2022-07-20 00:41:26,049 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:41:28,059 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:41:30,065 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:41:34,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:41:34,842 INFO L93 Difference]: Finished difference Result 16468 states and 22663 transitions. [2022-07-20 00:41:34,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-20 00:41:34,842 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (30), 8 states have call predecessors, (30), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 289 [2022-07-20 00:41:34,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:41:34,871 INFO L225 Difference]: With dead ends: 16468 [2022-07-20 00:41:34,872 INFO L226 Difference]: Without dead ends: 8427 [2022-07-20 00:41:34,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 98 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-07-20 00:41:34,898 INFO L413 NwaCegarLoop]: 2102 mSDtfsCounter, 1853 mSDsluCounter, 2132 mSDsCounter, 0 mSdLazyCounter, 3385 mSolverCounterSat, 696 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1966 SdHoareTripleChecker+Valid, 4234 SdHoareTripleChecker+Invalid, 4085 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 696 IncrementalHoareTripleChecker+Valid, 3385 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2022-07-20 00:41:34,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1966 Valid, 4234 Invalid, 4085 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [696 Valid, 3385 Invalid, 4 Unknown, 0 Unchecked, 12.5s Time] [2022-07-20 00:41:34,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8427 states. [2022-07-20 00:41:35,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8427 to 7724. [2022-07-20 00:41:35,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7724 states, 5862 states have (on average 1.3582395087001025) internal successors, (7962), 6010 states have internal predecessors, (7962), 1278 states have call successors, (1278), 581 states have call predecessors, (1278), 583 states have return successors, (1298), 1231 states have call predecessors, (1298), 1248 states have call successors, (1298) [2022-07-20 00:41:35,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7724 states to 7724 states and 10538 transitions. [2022-07-20 00:41:35,241 INFO L78 Accepts]: Start accepts. Automaton has 7724 states and 10538 transitions. Word has length 289 [2022-07-20 00:41:35,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:41:35,243 INFO L495 AbstractCegarLoop]: Abstraction has 7724 states and 10538 transitions. [2022-07-20 00:41:35,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (30), 8 states have call predecessors, (30), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-07-20 00:41:35,244 INFO L276 IsEmpty]: Start isEmpty. Operand 7724 states and 10538 transitions. [2022-07-20 00:41:35,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2022-07-20 00:41:35,247 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:41:35,247 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:41:35,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-20 00:41:35,247 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:41:35,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:41:35,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1803979798, now seen corresponding path program 1 times [2022-07-20 00:41:35,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:41:35,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307319060] [2022-07-20 00:41:35,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:41:35,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:41:35,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:35,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:41:35,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:35,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:35,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:35,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:41:35,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:35,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:41:35,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:35,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:35,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:35,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:41:35,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:35,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 00:41:35,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:35,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:35,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:35,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:41:35,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:35,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 00:41:35,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:35,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:35,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:35,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:41:35,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:35,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-20 00:41:35,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:35,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:35,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:35,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:41:35,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:35,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 00:41:35,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:35,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:35,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:35,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:41:35,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:35,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-20 00:41:35,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:35,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:35,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:35,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:41:35,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:35,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-20 00:41:35,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:35,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:35,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:35,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:41:35,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:35,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-20 00:41:35,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:35,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:35,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:35,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-20 00:41:35,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:35,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:35,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:35,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-20 00:41:35,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:35,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:35,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:35,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-20 00:41:35,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:35,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:35,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:35,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-20 00:41:35,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:35,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:35,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:35,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-20 00:41:35,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:35,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:35,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:35,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-20 00:41:35,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:35,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:35,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:35,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-20 00:41:35,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:35,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:35,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:35,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-20 00:41:35,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:35,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:35,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:35,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-20 00:41:35,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:35,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:41:35,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:35,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-07-20 00:41:35,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:35,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:35,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:35,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-07-20 00:41:35,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:35,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-07-20 00:41:35,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:35,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:35,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:35,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:41:35,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:35,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2022-07-20 00:41:35,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:35,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2022-07-20 00:41:35,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:35,612 INFO L134 CoverageAnalysis]: Checked inductivity of 832 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 828 trivial. 0 not checked. [2022-07-20 00:41:35,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:41:35,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307319060] [2022-07-20 00:41:35,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307319060] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:41:35,612 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:41:35,613 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-20 00:41:35,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76973934] [2022-07-20 00:41:35,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:41:35,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-20 00:41:35,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:41:35,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-20 00:41:35,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-07-20 00:41:35,614 INFO L87 Difference]: Start difference. First operand 7724 states and 10538 transitions. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (32), 7 states have call predecessors, (32), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-07-20 00:41:37,629 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:41:39,635 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:41:41,640 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:41:43,649 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:41:48,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:41:48,458 INFO L93 Difference]: Finished difference Result 20853 states and 28621 transitions. [2022-07-20 00:41:48,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-20 00:41:48,458 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (32), 7 states have call predecessors, (32), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 320 [2022-07-20 00:41:48,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:41:48,510 INFO L225 Difference]: With dead ends: 20853 [2022-07-20 00:41:48,511 INFO L226 Difference]: Without dead ends: 13189 [2022-07-20 00:41:48,540 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-07-20 00:41:48,541 INFO L413 NwaCegarLoop]: 1906 mSDtfsCounter, 3149 mSDsluCounter, 2195 mSDsCounter, 0 mSdLazyCounter, 3048 mSolverCounterSat, 1359 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3283 SdHoareTripleChecker+Valid, 4101 SdHoareTripleChecker+Invalid, 4411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1359 IncrementalHoareTripleChecker+Valid, 3048 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2022-07-20 00:41:48,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3283 Valid, 4101 Invalid, 4411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1359 Valid, 3048 Invalid, 4 Unknown, 0 Unchecked, 12.3s Time] [2022-07-20 00:41:48,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13189 states. [2022-07-20 00:41:49,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13189 to 12305. [2022-07-20 00:41:49,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12305 states, 9445 states have (on average 1.372366331392271) internal successors, (12962), 9682 states have internal predecessors, (12962), 1957 states have call successors, (1957), 895 states have call predecessors, (1957), 902 states have return successors, (1991), 1895 states have call predecessors, (1991), 1927 states have call successors, (1991) [2022-07-20 00:41:49,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12305 states to 12305 states and 16910 transitions. [2022-07-20 00:41:49,125 INFO L78 Accepts]: Start accepts. Automaton has 12305 states and 16910 transitions. Word has length 320 [2022-07-20 00:41:49,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:41:49,126 INFO L495 AbstractCegarLoop]: Abstraction has 12305 states and 16910 transitions. [2022-07-20 00:41:49,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (32), 7 states have call predecessors, (32), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-07-20 00:41:49,127 INFO L276 IsEmpty]: Start isEmpty. Operand 12305 states and 16910 transitions. [2022-07-20 00:41:49,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2022-07-20 00:41:49,131 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:41:49,132 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:41:49,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-20 00:41:49,132 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:41:49,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:41:49,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1888079850, now seen corresponding path program 1 times [2022-07-20 00:41:49,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:41:49,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607163236] [2022-07-20 00:41:49,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:41:49,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:41:49,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:49,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:41:49,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:49,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:49,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:49,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:41:49,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:49,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:41:49,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:49,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:49,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:49,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:41:49,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:49,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 00:41:49,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:49,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:49,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:49,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:41:49,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:49,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 00:41:49,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:49,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:49,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:49,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:41:49,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:49,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-20 00:41:49,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:49,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:49,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:49,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:41:49,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:49,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 00:41:49,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:49,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:49,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:49,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:41:49,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:49,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-20 00:41:49,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:49,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:49,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:49,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:41:49,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:49,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-20 00:41:49,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:49,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:49,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:49,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:41:49,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:49,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-20 00:41:49,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:49,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:49,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:49,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-20 00:41:49,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:49,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:49,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:49,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-20 00:41:49,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:49,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:49,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:49,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-20 00:41:49,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:49,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:49,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:49,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-20 00:41:49,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:49,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:49,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:49,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-20 00:41:49,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:49,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:49,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:49,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-20 00:41:49,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:49,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:49,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:49,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-20 00:41:49,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:49,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:49,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:49,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-20 00:41:49,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:49,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:49,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:49,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-20 00:41:49,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:49,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:41:49,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:49,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-07-20 00:41:49,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:49,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:49,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:49,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-07-20 00:41:49,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:49,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-07-20 00:41:49,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:49,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:41:49,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:49,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:41:49,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:49,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-07-20 00:41:49,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:49,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2022-07-20 00:41:49,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:41:49,615 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 830 trivial. 0 not checked. [2022-07-20 00:41:49,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:41:49,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607163236] [2022-07-20 00:41:49,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607163236] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:41:49,615 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:41:49,615 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-20 00:41:49,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745553692] [2022-07-20 00:41:49,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:41:49,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-20 00:41:49,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:41:49,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-20 00:41:49,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-07-20 00:41:49,618 INFO L87 Difference]: Start difference. First operand 12305 states and 16910 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (32), 7 states have call predecessors, (32), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-20 00:41:51,636 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 [] [2022-07-20 00:41:53,647 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:42:01,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:42:01,795 INFO L93 Difference]: Finished difference Result 30322 states and 41767 transitions. [2022-07-20 00:42:01,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-20 00:42:01,796 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (32), 7 states have call predecessors, (32), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 330 [2022-07-20 00:42:01,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:42:01,863 INFO L225 Difference]: With dead ends: 30322 [2022-07-20 00:42:01,863 INFO L226 Difference]: Without dead ends: 18077 [2022-07-20 00:42:01,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-07-20 00:42:01,894 INFO L413 NwaCegarLoop]: 2237 mSDtfsCounter, 1854 mSDsluCounter, 3287 mSDsCounter, 0 mSdLazyCounter, 5405 mSolverCounterSat, 687 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2000 SdHoareTripleChecker+Valid, 5524 SdHoareTripleChecker+Invalid, 6094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 687 IncrementalHoareTripleChecker+Valid, 5405 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2022-07-20 00:42:01,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2000 Valid, 5524 Invalid, 6094 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [687 Valid, 5405 Invalid, 2 Unknown, 0 Unchecked, 11.4s Time] [2022-07-20 00:42:01,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18077 states. [2022-07-20 00:42:02,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18077 to 16895. [2022-07-20 00:42:02,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16895 states, 13033 states have (on average 1.3786541855290417) internal successors, (17968), 13359 states have internal predecessors, (17968), 2641 states have call successors, (2641), 1210 states have call predecessors, (2641), 1220 states have return successors, (2689), 2562 states have call predecessors, (2689), 2611 states have call successors, (2689) [2022-07-20 00:42:02,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16895 states to 16895 states and 23298 transitions. [2022-07-20 00:42:02,529 INFO L78 Accepts]: Start accepts. Automaton has 16895 states and 23298 transitions. Word has length 330 [2022-07-20 00:42:02,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:42:02,530 INFO L495 AbstractCegarLoop]: Abstraction has 16895 states and 23298 transitions. [2022-07-20 00:42:02,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (32), 7 states have call predecessors, (32), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-20 00:42:02,530 INFO L276 IsEmpty]: Start isEmpty. Operand 16895 states and 23298 transitions. [2022-07-20 00:42:02,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2022-07-20 00:42:02,542 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:42:02,542 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:42:02,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-20 00:42:02,542 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:42:02,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:42:02,543 INFO L85 PathProgramCache]: Analyzing trace with hash 954133377, now seen corresponding path program 1 times [2022-07-20 00:42:02,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:42:02,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809126968] [2022-07-20 00:42:02,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:42:02,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:42:02,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:02,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:42:02,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:02,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:02,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:02,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:42:02,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:02,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:42:02,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:02,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:02,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:02,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:42:02,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:02,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 00:42:02,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:02,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:02,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:02,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:42:02,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:02,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 00:42:02,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:02,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:02,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:02,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:42:02,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:02,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-20 00:42:02,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:02,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:02,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:02,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:42:02,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:02,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 00:42:02,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:02,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:02,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:02,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:42:02,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:02,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-20 00:42:02,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:02,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:02,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:02,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:42:02,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:02,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-20 00:42:02,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:02,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:02,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:02,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:42:02,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:02,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-20 00:42:02,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:02,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:02,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:02,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-20 00:42:02,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:02,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:02,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:02,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-20 00:42:02,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:02,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:02,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:02,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-20 00:42:02,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:02,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:02,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:02,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-20 00:42:02,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:02,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:02,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:02,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-20 00:42:02,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:02,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:02,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:02,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-20 00:42:02,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:02,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:02,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:02,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-20 00:42:02,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:02,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:02,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:02,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-20 00:42:02,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:02,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:02,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:03,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-20 00:42:03,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:03,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:42:03,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:03,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-07-20 00:42:03,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:03,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:03,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:03,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2022-07-20 00:42:03,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:03,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:03,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:03,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:03,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:03,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:42:03,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:03,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-20 00:42:03,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:03,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:03,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:03,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:42:03,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:03,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-07-20 00:42:03,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:03,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:03,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:03,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-20 00:42:03,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:03,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-20 00:42:03,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:03,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2022-07-20 00:42:03,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:03,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-07-20 00:42:03,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:03,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-07-20 00:42:03,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:03,101 INFO L134 CoverageAnalysis]: Checked inductivity of 959 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 954 trivial. 0 not checked. [2022-07-20 00:42:03,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:42:03,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809126968] [2022-07-20 00:42:03,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809126968] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:42:03,102 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:42:03,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-20 00:42:03,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631798640] [2022-07-20 00:42:03,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:42:03,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-20 00:42:03,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:42:03,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-20 00:42:03,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-07-20 00:42:03,104 INFO L87 Difference]: Start difference. First operand 16895 states and 23298 transitions. Second operand has 11 states, 11 states have (on average 10.727272727272727) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (38), 9 states have call predecessors, (38), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-07-20 00:42:05,121 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 [] [2022-07-20 00:42:07,136 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:42:11,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:42:11,912 INFO L93 Difference]: Finished difference Result 36656 states and 50869 transitions. [2022-07-20 00:42:11,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-20 00:42:11,912 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.727272727272727) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (38), 9 states have call predecessors, (38), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 371 [2022-07-20 00:42:11,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:42:11,996 INFO L225 Difference]: With dead ends: 36656 [2022-07-20 00:42:11,996 INFO L226 Difference]: Without dead ends: 19821 [2022-07-20 00:42:12,045 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2022-07-20 00:42:12,046 INFO L413 NwaCegarLoop]: 1358 mSDtfsCounter, 2756 mSDsluCounter, 1925 mSDsCounter, 0 mSdLazyCounter, 2853 mSolverCounterSat, 1183 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2853 SdHoareTripleChecker+Valid, 3283 SdHoareTripleChecker+Invalid, 4038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1183 IncrementalHoareTripleChecker+Valid, 2853 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-07-20 00:42:12,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2853 Valid, 3283 Invalid, 4038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1183 Valid, 2853 Invalid, 2 Unknown, 0 Unchecked, 8.0s Time] [2022-07-20 00:42:12,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19821 states. [2022-07-20 00:42:12,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19821 to 16875. [2022-07-20 00:42:12,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16875 states, 13013 states have (on average 1.3786213786213786) internal successors, (17940), 13345 states have internal predecessors, (17940), 2641 states have call successors, (2641), 1210 states have call predecessors, (2641), 1220 states have return successors, (2689), 2556 states have call predecessors, (2689), 2611 states have call successors, (2689) [2022-07-20 00:42:12,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16875 states to 16875 states and 23270 transitions. [2022-07-20 00:42:12,875 INFO L78 Accepts]: Start accepts. Automaton has 16875 states and 23270 transitions. Word has length 371 [2022-07-20 00:42:12,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:42:12,876 INFO L495 AbstractCegarLoop]: Abstraction has 16875 states and 23270 transitions. [2022-07-20 00:42:12,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.727272727272727) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (38), 9 states have call predecessors, (38), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-07-20 00:42:12,877 INFO L276 IsEmpty]: Start isEmpty. Operand 16875 states and 23270 transitions. [2022-07-20 00:42:12,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2022-07-20 00:42:12,888 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:42:12,889 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:42:12,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-20 00:42:12,890 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:42:12,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:42:12,890 INFO L85 PathProgramCache]: Analyzing trace with hash 1516586618, now seen corresponding path program 1 times [2022-07-20 00:42:12,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:42:12,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719759307] [2022-07-20 00:42:12,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:42:12,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:42:13,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:13,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:42:13,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:13,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:13,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:13,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:42:13,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:13,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:42:13,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:13,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:13,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:13,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:42:13,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:13,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 00:42:13,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:13,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:13,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:13,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:42:13,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:13,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 00:42:13,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:13,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:13,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:13,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:42:13,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:13,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-20 00:42:13,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:13,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:13,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:13,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:42:13,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:13,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 00:42:13,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:13,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:13,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:13,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:42:13,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:13,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-20 00:42:13,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:13,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:13,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:13,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:42:13,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:13,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-20 00:42:13,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:13,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:13,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:13,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:42:13,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:13,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-20 00:42:13,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:13,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:13,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:13,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-20 00:42:13,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:13,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:13,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:13,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-20 00:42:13,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:13,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:13,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:13,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-20 00:42:13,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:13,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:13,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:13,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-20 00:42:13,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:13,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:13,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:13,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-20 00:42:13,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:13,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:13,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:13,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-20 00:42:13,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:13,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:13,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:13,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-20 00:42:13,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:13,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:13,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:13,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-20 00:42:13,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:13,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:13,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:13,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-20 00:42:13,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:13,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:42:13,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:13,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-07-20 00:42:13,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:13,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:13,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:13,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-07-20 00:42:13,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:13,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-07-20 00:42:13,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:13,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:13,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:13,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:42:13,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:13,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2022-07-20 00:42:13,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:13,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:42:13,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:13,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2022-07-20 00:42:13,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:13,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:13,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:13,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-07-20 00:42:13,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:13,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2022-07-20 00:42:13,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:13,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:42:13,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:13,498 INFO L134 CoverageAnalysis]: Checked inductivity of 860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 860 trivial. 0 not checked. [2022-07-20 00:42:13,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:42:13,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719759307] [2022-07-20 00:42:13,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719759307] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:42:13,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:42:13,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-20 00:42:13,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270144844] [2022-07-20 00:42:13,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:42:13,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-20 00:42:13,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:42:13,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-20 00:42:13,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-07-20 00:42:13,501 INFO L87 Difference]: Start difference. First operand 16875 states and 23270 transitions. Second operand has 11 states, 11 states have (on average 9.727272727272727) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (35), 7 states have call predecessors, (35), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) [2022-07-20 00:42:15,518 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 [] [2022-07-20 00:42:17,529 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:42:22,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:42:22,844 INFO L93 Difference]: Finished difference Result 32455 states and 46237 transitions. [2022-07-20 00:42:22,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-20 00:42:22,845 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.727272727272727) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (35), 7 states have call predecessors, (35), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) Word has length 367 [2022-07-20 00:42:22,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:42:22,953 INFO L225 Difference]: With dead ends: 32455 [2022-07-20 00:42:22,954 INFO L226 Difference]: Without dead ends: 25052 [2022-07-20 00:42:22,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2022-07-20 00:42:22,986 INFO L413 NwaCegarLoop]: 1651 mSDtfsCounter, 2594 mSDsluCounter, 4337 mSDsCounter, 0 mSdLazyCounter, 4818 mSolverCounterSat, 1155 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2732 SdHoareTripleChecker+Valid, 5988 SdHoareTripleChecker+Invalid, 5975 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1155 IncrementalHoareTripleChecker+Valid, 4818 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2022-07-20 00:42:22,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2732 Valid, 5988 Invalid, 5975 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1155 Valid, 4818 Invalid, 2 Unknown, 0 Unchecked, 8.4s Time] [2022-07-20 00:42:23,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25052 states. [2022-07-20 00:42:23,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25052 to 16866. [2022-07-20 00:42:23,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16866 states, 13005 states have (on average 1.378239138792772) internal successors, (17924), 13336 states have internal predecessors, (17924), 2640 states have call successors, (2640), 1210 states have call predecessors, (2640), 1220 states have return successors, (2689), 2556 states have call predecessors, (2689), 2611 states have call successors, (2689) [2022-07-20 00:42:23,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16866 states to 16866 states and 23253 transitions. [2022-07-20 00:42:23,894 INFO L78 Accepts]: Start accepts. Automaton has 16866 states and 23253 transitions. Word has length 367 [2022-07-20 00:42:23,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:42:23,895 INFO L495 AbstractCegarLoop]: Abstraction has 16866 states and 23253 transitions. [2022-07-20 00:42:23,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.727272727272727) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (35), 7 states have call predecessors, (35), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) [2022-07-20 00:42:23,896 INFO L276 IsEmpty]: Start isEmpty. Operand 16866 states and 23253 transitions. [2022-07-20 00:42:23,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2022-07-20 00:42:23,908 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:42:23,908 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:42:23,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-20 00:42:23,909 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:42:23,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:42:23,909 INFO L85 PathProgramCache]: Analyzing trace with hash -1927062079, now seen corresponding path program 1 times [2022-07-20 00:42:23,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:42:23,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168243310] [2022-07-20 00:42:23,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:42:23,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:42:24,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:24,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:42:24,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:24,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:24,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:24,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:42:24,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:24,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:42:24,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:24,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:24,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:24,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:42:24,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:24,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 00:42:24,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:24,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:24,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:24,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:42:24,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:24,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 00:42:24,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:24,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:24,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:24,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:42:24,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:24,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-20 00:42:24,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:24,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:24,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:24,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:42:24,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:24,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 00:42:24,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:24,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:24,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:24,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:42:24,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:24,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-20 00:42:24,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:24,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:24,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:24,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:42:24,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:24,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-20 00:42:24,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:24,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:24,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:24,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:42:24,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:24,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-20 00:42:24,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:24,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:24,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:24,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-20 00:42:24,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:24,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:24,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:24,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-20 00:42:24,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:24,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:24,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:24,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-20 00:42:24,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:24,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:24,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:24,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-20 00:42:24,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:24,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:24,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:24,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-20 00:42:24,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:24,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:24,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:24,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-20 00:42:24,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:24,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:24,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:24,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-20 00:42:24,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:24,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:24,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:24,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-20 00:42:24,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:24,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:24,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:24,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-20 00:42:24,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:24,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:42:24,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:24,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-07-20 00:42:24,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:24,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:24,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:24,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-07-20 00:42:24,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:24,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-07-20 00:42:24,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:24,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:24,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:24,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:42:24,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:24,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2022-07-20 00:42:24,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:24,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:42:24,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:24,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2022-07-20 00:42:24,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:24,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:24,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:24,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-07-20 00:42:24,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:24,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2022-07-20 00:42:24,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:24,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:42:24,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:24,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-07-20 00:42:24,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:24,549 INFO L134 CoverageAnalysis]: Checked inductivity of 865 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 847 trivial. 0 not checked. [2022-07-20 00:42:24,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:42:24,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168243310] [2022-07-20 00:42:24,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168243310] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 00:42:24,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [648486695] [2022-07-20 00:42:24,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:42:24,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 00:42:24,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 00:42:24,553 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-20 00:42:24,554 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-20 00:42:25,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:25,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 3129 conjuncts, 26 conjunts are in the unsatisfiable core [2022-07-20 00:42:25,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 00:42:25,740 INFO L134 CoverageAnalysis]: Checked inductivity of 865 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 733 trivial. 0 not checked. [2022-07-20 00:42:25,740 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 00:42:25,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [648486695] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:42:25,741 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 00:42:25,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2022-07-20 00:42:25,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394134153] [2022-07-20 00:42:25,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:42:25,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 00:42:25,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:42:25,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 00:42:25,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-07-20 00:42:25,744 INFO L87 Difference]: Start difference. First operand 16866 states and 23253 transitions. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 3 states have call successors, (38), 2 states have call predecessors, (38), 3 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2022-07-20 00:42:26,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:42:26,770 INFO L93 Difference]: Finished difference Result 34477 states and 47603 transitions. [2022-07-20 00:42:26,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 00:42:26,771 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 3 states have call successors, (38), 2 states have call predecessors, (38), 3 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) Word has length 368 [2022-07-20 00:42:26,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:42:26,850 INFO L225 Difference]: With dead ends: 34477 [2022-07-20 00:42:26,850 INFO L226 Difference]: Without dead ends: 17269 [2022-07-20 00:42:26,903 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 487 GetRequests, 477 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-07-20 00:42:26,904 INFO L413 NwaCegarLoop]: 1387 mSDtfsCounter, 127 mSDsluCounter, 2602 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 3989 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 00:42:26,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 3989 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 00:42:26,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17269 states. [2022-07-20 00:42:27,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17269 to 17222. [2022-07-20 00:42:27,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17222 states, 13283 states have (on average 1.3740871791011067) internal successors, (18252), 13631 states have internal predecessors, (18252), 2711 states have call successors, (2711), 1214 states have call predecessors, (2711), 1227 states have return successors, (2760), 2622 states have call predecessors, (2760), 2682 states have call successors, (2760) [2022-07-20 00:42:27,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17222 states to 17222 states and 23723 transitions. [2022-07-20 00:42:27,793 INFO L78 Accepts]: Start accepts. Automaton has 17222 states and 23723 transitions. Word has length 368 [2022-07-20 00:42:27,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:42:27,793 INFO L495 AbstractCegarLoop]: Abstraction has 17222 states and 23723 transitions. [2022-07-20 00:42:27,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 3 states have call successors, (38), 2 states have call predecessors, (38), 3 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2022-07-20 00:42:27,794 INFO L276 IsEmpty]: Start isEmpty. Operand 17222 states and 23723 transitions. [2022-07-20 00:42:27,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2022-07-20 00:42:27,805 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:42:27,805 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:42:27,841 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-20 00:42:28,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-07-20 00:42:28,032 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:42:28,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:42:28,032 INFO L85 PathProgramCache]: Analyzing trace with hash -644824137, now seen corresponding path program 1 times [2022-07-20 00:42:28,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:42:28,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081194016] [2022-07-20 00:42:28,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:42:28,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:42:28,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:28,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:42:28,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:28,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:28,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:28,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:42:28,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:28,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:42:28,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:28,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:28,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:28,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:42:28,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:28,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 00:42:28,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:28,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:28,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:28,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:42:28,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:28,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 00:42:28,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:28,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:28,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:28,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:42:28,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:28,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-20 00:42:28,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:28,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:28,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:28,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:42:28,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:28,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 00:42:28,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:28,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:28,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:28,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:42:28,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:28,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-20 00:42:28,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:28,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:28,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:28,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:42:28,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:28,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-20 00:42:28,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:28,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:28,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:28,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:42:28,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:28,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-20 00:42:28,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:28,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:28,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:28,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-20 00:42:28,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:28,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:28,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:28,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-20 00:42:28,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:28,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:28,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:28,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-20 00:42:28,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:28,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:28,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:28,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-20 00:42:28,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:28,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:28,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:28,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-20 00:42:28,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:28,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:28,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:28,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-20 00:42:28,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:28,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:28,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:28,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-20 00:42:28,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:28,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:28,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:28,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-20 00:42:28,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:28,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:28,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:28,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-20 00:42:28,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:28,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:42:28,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:28,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-07-20 00:42:28,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:28,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:28,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:28,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-07-20 00:42:28,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:28,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-07-20 00:42:28,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:28,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:28,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:28,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:42:28,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:28,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2022-07-20 00:42:28,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:28,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:42:28,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:28,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2022-07-20 00:42:28,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:28,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:28,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:28,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-07-20 00:42:28,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:28,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2022-07-20 00:42:28,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:28,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:42:28,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:28,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-07-20 00:42:28,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:28,654 INFO L134 CoverageAnalysis]: Checked inductivity of 862 backedges. 2 proven. 56 refuted. 0 times theorem prover too weak. 804 trivial. 0 not checked. [2022-07-20 00:42:28,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:42:28,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081194016] [2022-07-20 00:42:28,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081194016] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 00:42:28,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [881272506] [2022-07-20 00:42:28,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:42:28,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 00:42:28,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 00:42:28,657 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-20 00:42:28,658 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-20 00:42:30,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:30,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 3128 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-20 00:42:30,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 00:42:31,078 INFO L134 CoverageAnalysis]: Checked inductivity of 862 backedges. 184 proven. 0 refuted. 0 times theorem prover too weak. 678 trivial. 0 not checked. [2022-07-20 00:42:31,078 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 00:42:31,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [881272506] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:42:31,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 00:42:31,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 13 [2022-07-20 00:42:31,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861867815] [2022-07-20 00:42:31,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:42:31,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 00:42:31,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:42:31,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 00:42:31,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-07-20 00:42:31,081 INFO L87 Difference]: Start difference. First operand 17222 states and 23723 transitions. Second operand has 6 states, 5 states have (on average 24.4) internal successors, (122), 6 states have internal predecessors, (122), 3 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2022-07-20 00:42:31,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:42:31,767 INFO L93 Difference]: Finished difference Result 34488 states and 47635 transitions. [2022-07-20 00:42:31,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 00:42:31,767 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 24.4) internal successors, (122), 6 states have internal predecessors, (122), 3 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) Word has length 368 [2022-07-20 00:42:31,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:42:31,827 INFO L225 Difference]: With dead ends: 34488 [2022-07-20 00:42:31,827 INFO L226 Difference]: Without dead ends: 17247 [2022-07-20 00:42:31,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 489 GetRequests, 475 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2022-07-20 00:42:31,872 INFO L413 NwaCegarLoop]: 1335 mSDtfsCounter, 6 mSDsluCounter, 5312 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 6647 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 00:42:31,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 6647 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 00:42:31,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17247 states. [2022-07-20 00:42:32,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17247 to 17247. [2022-07-20 00:42:32,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17247 states, 13308 states have (on average 1.3733844304177938) internal successors, (18277), 13656 states have internal predecessors, (18277), 2711 states have call successors, (2711), 1214 states have call predecessors, (2711), 1227 states have return successors, (2760), 2622 states have call predecessors, (2760), 2682 states have call successors, (2760) [2022-07-20 00:42:32,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17247 states to 17247 states and 23748 transitions. [2022-07-20 00:42:32,549 INFO L78 Accepts]: Start accepts. Automaton has 17247 states and 23748 transitions. Word has length 368 [2022-07-20 00:42:32,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:42:32,550 INFO L495 AbstractCegarLoop]: Abstraction has 17247 states and 23748 transitions. [2022-07-20 00:42:32,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 24.4) internal successors, (122), 6 states have internal predecessors, (122), 3 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2022-07-20 00:42:32,550 INFO L276 IsEmpty]: Start isEmpty. Operand 17247 states and 23748 transitions. [2022-07-20 00:42:32,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2022-07-20 00:42:32,561 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:42:32,561 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:42:32,601 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-20 00:42:32,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-07-20 00:42:32,776 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:42:32,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:42:32,776 INFO L85 PathProgramCache]: Analyzing trace with hash 915778399, now seen corresponding path program 1 times [2022-07-20 00:42:32,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:42:32,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238862329] [2022-07-20 00:42:32,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:42:32,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:42:32,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:33,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:42:33,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:33,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:33,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:33,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:42:33,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:33,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:42:33,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:33,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:33,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:33,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:42:33,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:33,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 00:42:33,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:33,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:33,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:33,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:42:33,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:33,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 00:42:33,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:33,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:33,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:33,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:42:33,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:33,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-20 00:42:33,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:33,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:33,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:33,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:42:33,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:33,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 00:42:33,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:33,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:33,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:33,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:42:33,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:33,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-20 00:42:33,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:33,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:33,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:33,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:42:33,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:33,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-20 00:42:33,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:33,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:33,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:33,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:42:33,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:33,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-20 00:42:33,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:33,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:33,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:33,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-20 00:42:33,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:33,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:33,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:33,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-20 00:42:33,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:33,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:33,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:33,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-20 00:42:33,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:33,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:33,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:33,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-20 00:42:33,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:33,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:33,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:33,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-20 00:42:33,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:33,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:33,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:33,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-07-20 00:42:33,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:33,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:33,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:33,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-07-20 00:42:33,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:33,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:33,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:33,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2022-07-20 00:42:33,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:33,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:33,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:33,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-07-20 00:42:33,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:33,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:42:33,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:33,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-07-20 00:42:33,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:33,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:33,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:33,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2022-07-20 00:42:33,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:33,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-07-20 00:42:33,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:33,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:33,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:33,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:42:33,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:33,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-07-20 00:42:33,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:33,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:42:33,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:33,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2022-07-20 00:42:33,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:33,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:33,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:33,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2022-07-20 00:42:33,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:33,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2022-07-20 00:42:33,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:33,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:42:33,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:33,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-07-20 00:42:33,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:33,374 INFO L134 CoverageAnalysis]: Checked inductivity of 979 backedges. 2 proven. 81 refuted. 0 times theorem prover too weak. 896 trivial. 0 not checked. [2022-07-20 00:42:33,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:42:33,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238862329] [2022-07-20 00:42:33,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238862329] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 00:42:33,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1622945475] [2022-07-20 00:42:33,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:42:33,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 00:42:33,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 00:42:33,376 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-20 00:42:33,378 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-20 00:42:36,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:36,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 3263 conjuncts, 15 conjunts are in the unsatisfiable core [2022-07-20 00:42:36,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 00:42:36,258 INFO L134 CoverageAnalysis]: Checked inductivity of 979 backedges. 380 proven. 7 refuted. 0 times theorem prover too weak. 592 trivial. 0 not checked. [2022-07-20 00:42:36,259 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 00:42:36,694 INFO L134 CoverageAnalysis]: Checked inductivity of 979 backedges. 32 proven. 51 refuted. 0 times theorem prover too weak. 896 trivial. 0 not checked. [2022-07-20 00:42:36,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1622945475] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 00:42:36,695 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-20 00:42:36,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 7, 7] total 19 [2022-07-20 00:42:36,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960000230] [2022-07-20 00:42:36,696 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-20 00:42:36,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-20 00:42:36,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:42:36,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-20 00:42:36,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2022-07-20 00:42:36,698 INFO L87 Difference]: Start difference. First operand 17247 states and 23748 transitions. Second operand has 19 states, 17 states have (on average 11.0) internal successors, (187), 14 states have internal predecessors, (187), 4 states have call successors, (83), 7 states have call predecessors, (83), 7 states have return successors, (62), 5 states have call predecessors, (62), 4 states have call successors, (62) [2022-07-20 00:42:38,716 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 [] [2022-07-20 00:42:40,726 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:42:42,736 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:42:53,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:42:53,862 INFO L93 Difference]: Finished difference Result 35595 states and 49137 transitions. [2022-07-20 00:42:53,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-20 00:42:53,864 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 11.0) internal successors, (187), 14 states have internal predecessors, (187), 4 states have call successors, (83), 7 states have call predecessors, (83), 7 states have return successors, (62), 5 states have call predecessors, (62), 4 states have call successors, (62) Word has length 377 [2022-07-20 00:42:53,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:42:53,946 INFO L225 Difference]: With dead ends: 35595 [2022-07-20 00:42:53,947 INFO L226 Difference]: Without dead ends: 18329 [2022-07-20 00:42:53,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 889 GetRequests, 857 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=162, Invalid=768, Unknown=0, NotChecked=0, Total=930 [2022-07-20 00:42:53,995 INFO L413 NwaCegarLoop]: 1209 mSDtfsCounter, 1740 mSDsluCounter, 5649 mSDsCounter, 0 mSdLazyCounter, 9215 mSolverCounterSat, 1021 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1807 SdHoareTripleChecker+Valid, 6858 SdHoareTripleChecker+Invalid, 10239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1021 IncrementalHoareTripleChecker+Valid, 9215 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.9s IncrementalHoareTripleChecker+Time [2022-07-20 00:42:53,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1807 Valid, 6858 Invalid, 10239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1021 Valid, 9215 Invalid, 3 Unknown, 0 Unchecked, 15.9s Time] [2022-07-20 00:42:54,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18329 states. [2022-07-20 00:42:54,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18329 to 17277. [2022-07-20 00:42:54,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17277 states, 13336 states have (on average 1.3726004799040192) internal successors, (18305), 13684 states have internal predecessors, (18305), 2712 states have call successors, (2712), 1215 states have call predecessors, (2712), 1228 states have return successors, (2761), 2623 states have call predecessors, (2761), 2683 states have call successors, (2761) [2022-07-20 00:42:55,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17277 states to 17277 states and 23778 transitions. [2022-07-20 00:42:55,019 INFO L78 Accepts]: Start accepts. Automaton has 17277 states and 23778 transitions. Word has length 377 [2022-07-20 00:42:55,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:42:55,019 INFO L495 AbstractCegarLoop]: Abstraction has 17277 states and 23778 transitions. [2022-07-20 00:42:55,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 11.0) internal successors, (187), 14 states have internal predecessors, (187), 4 states have call successors, (83), 7 states have call predecessors, (83), 7 states have return successors, (62), 5 states have call predecessors, (62), 4 states have call successors, (62) [2022-07-20 00:42:55,019 INFO L276 IsEmpty]: Start isEmpty. Operand 17277 states and 23778 transitions. [2022-07-20 00:42:55,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2022-07-20 00:42:55,028 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:42:55,028 INFO L195 NwaCegarLoop]: trace histogram [18, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:42:55,074 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-20 00:42:55,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 00:42:55,252 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:42:55,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:42:55,253 INFO L85 PathProgramCache]: Analyzing trace with hash 171986615, now seen corresponding path program 2 times [2022-07-20 00:42:55,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:42:55,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108175198] [2022-07-20 00:42:55,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:42:55,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:42:55,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:55,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:42:55,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:55,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:55,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:55,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:42:55,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:55,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:42:55,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:55,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:55,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:55,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:42:55,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:55,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 00:42:55,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:55,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:55,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:55,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:42:55,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:55,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 00:42:55,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:55,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:55,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:55,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:42:55,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:55,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-20 00:42:55,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:55,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:55,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:55,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:42:55,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:55,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 00:42:55,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:55,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:55,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:55,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:42:55,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:55,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-20 00:42:55,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:55,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:55,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:55,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:42:55,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:55,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-20 00:42:55,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:55,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:55,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:55,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:42:55,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:55,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-20 00:42:55,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:55,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:55,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:55,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-20 00:42:55,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:55,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:55,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:55,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-20 00:42:55,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:55,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:55,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:55,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-20 00:42:55,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:55,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:55,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:55,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-20 00:42:55,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:55,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:55,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:55,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-07-20 00:42:55,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:55,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:55,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:55,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2022-07-20 00:42:55,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:55,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:55,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:55,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-07-20 00:42:55,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:55,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:55,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:55,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-07-20 00:42:55,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:55,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:55,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:55,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-07-20 00:42:55,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:55,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:42:55,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:55,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2022-07-20 00:42:55,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:55,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:55,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:55,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-07-20 00:42:55,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:55,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-07-20 00:42:55,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:55,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:55,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:55,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:42:55,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:55,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2022-07-20 00:42:55,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:55,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:42:55,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:55,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-07-20 00:42:55,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:55,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:42:55,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:55,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-07-20 00:42:55,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:55,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-07-20 00:42:55,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:55,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:42:55,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:55,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2022-07-20 00:42:56,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:42:56,002 INFO L134 CoverageAnalysis]: Checked inductivity of 1177 backedges. 2 proven. 123 refuted. 0 times theorem prover too weak. 1052 trivial. 0 not checked. [2022-07-20 00:42:56,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:42:56,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108175198] [2022-07-20 00:42:56,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108175198] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 00:42:56,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [604443866] [2022-07-20 00:42:56,003 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-20 00:42:56,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 00:42:56,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 00:42:56,005 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-20 00:42:56,006 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-20 00:42:57,267 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-20 00:42:57,267 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-20 00:42:57,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 1587 conjuncts, 76 conjunts are in the unsatisfiable core [2022-07-20 00:42:57,285 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 00:42:57,920 INFO L134 CoverageAnalysis]: Checked inductivity of 1177 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 1161 trivial. 0 not checked. [2022-07-20 00:42:57,920 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 00:42:57,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [604443866] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:42:57,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 00:42:57,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [13] total 31 [2022-07-20 00:42:57,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256122221] [2022-07-20 00:42:57,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:42:57,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-07-20 00:42:57,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:42:57,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-07-20 00:42:57,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=864, Unknown=0, NotChecked=0, Total=930 [2022-07-20 00:42:57,922 INFO L87 Difference]: Start difference. First operand 17277 states and 23778 transitions. Second operand has 20 states, 18 states have (on average 6.777777777777778) internal successors, (122), 16 states have internal predecessors, (122), 4 states have call successors, (37), 2 states have call predecessors, (37), 6 states have return successors, (34), 6 states have call predecessors, (34), 4 states have call successors, (34) [2022-07-20 00:42:59,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:42:59,680 INFO L93 Difference]: Finished difference Result 38316 states and 53362 transitions. [2022-07-20 00:42:59,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-20 00:42:59,681 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 6.777777777777778) internal successors, (122), 16 states have internal predecessors, (122), 4 states have call successors, (37), 2 states have call predecessors, (37), 6 states have return successors, (34), 6 states have call predecessors, (34), 4 states have call successors, (34) Word has length 386 [2022-07-20 00:42:59,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:42:59,753 INFO L225 Difference]: With dead ends: 38316 [2022-07-20 00:42:59,753 INFO L226 Difference]: Without dead ends: 21088 [2022-07-20 00:42:59,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 522 GetRequests, 479 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=180, Invalid=1800, Unknown=0, NotChecked=0, Total=1980 [2022-07-20 00:42:59,797 INFO L413 NwaCegarLoop]: 1667 mSDtfsCounter, 631 mSDsluCounter, 27652 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 644 SdHoareTripleChecker+Valid, 29319 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-20 00:42:59,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [644 Valid, 29319 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-20 00:42:59,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21088 states. [2022-07-20 00:43:00,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21088 to 17425. [2022-07-20 00:43:00,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17425 states, 13464 states have (on average 1.368612596553773) internal successors, (18427), 13812 states have internal predecessors, (18427), 2724 states have call successors, (2724), 1215 states have call predecessors, (2724), 1236 states have return successors, (2781), 2643 states have call predecessors, (2781), 2695 states have call successors, (2781) [2022-07-20 00:43:00,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17425 states to 17425 states and 23932 transitions. [2022-07-20 00:43:00,526 INFO L78 Accepts]: Start accepts. Automaton has 17425 states and 23932 transitions. Word has length 386 [2022-07-20 00:43:00,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:43:00,527 INFO L495 AbstractCegarLoop]: Abstraction has 17425 states and 23932 transitions. [2022-07-20 00:43:00,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 6.777777777777778) internal successors, (122), 16 states have internal predecessors, (122), 4 states have call successors, (37), 2 states have call predecessors, (37), 6 states have return successors, (34), 6 states have call predecessors, (34), 4 states have call successors, (34) [2022-07-20 00:43:00,527 INFO L276 IsEmpty]: Start isEmpty. Operand 17425 states and 23932 transitions. [2022-07-20 00:43:00,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2022-07-20 00:43:00,538 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:43:00,538 INFO L195 NwaCegarLoop]: trace histogram [18, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:43:00,575 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-20 00:43:00,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-07-20 00:43:00,752 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:43:00,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:43:00,752 INFO L85 PathProgramCache]: Analyzing trace with hash 615887289, now seen corresponding path program 1 times [2022-07-20 00:43:00,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:43:00,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723735101] [2022-07-20 00:43:00,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:43:00,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:43:00,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:01,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:43:01,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:01,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:43:01,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:01,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:43:01,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:01,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:43:01,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:01,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:43:01,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:01,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:43:01,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:01,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 00:43:01,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:01,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:43:01,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:01,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:43:01,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:01,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 00:43:01,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:01,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:43:01,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:01,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:43:01,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:01,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-20 00:43:01,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:01,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:43:01,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:01,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:43:01,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:01,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 00:43:01,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:01,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:43:01,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:01,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:43:01,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:01,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-20 00:43:01,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:01,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:43:01,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:01,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:43:01,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:01,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-20 00:43:01,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:01,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:43:01,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:01,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:43:01,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:01,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-20 00:43:01,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:01,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:43:01,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:01,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-20 00:43:01,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:01,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:43:01,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:01,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-20 00:43:01,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:01,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:43:01,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:01,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-20 00:43:01,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:01,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:43:01,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:01,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-20 00:43:01,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:01,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:43:01,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:01,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-07-20 00:43:01,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:01,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:43:01,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:01,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2022-07-20 00:43:01,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:01,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:43:01,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:01,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-07-20 00:43:01,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:01,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:43:01,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:01,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-07-20 00:43:01,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:01,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:43:01,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:01,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-07-20 00:43:01,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:01,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:43:01,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:01,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2022-07-20 00:43:01,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:01,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:43:01,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:01,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-07-20 00:43:01,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:01,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-07-20 00:43:01,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:01,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:43:01,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:01,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:43:01,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:01,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2022-07-20 00:43:01,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:01,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:43:01,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:01,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-07-20 00:43:01,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:01,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:43:01,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:01,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-07-20 00:43:01,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:01,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-07-20 00:43:01,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:01,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:43:01,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:01,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2022-07-20 00:43:01,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:01,460 INFO L134 CoverageAnalysis]: Checked inductivity of 1177 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1167 trivial. 0 not checked. [2022-07-20 00:43:01,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:43:01,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723735101] [2022-07-20 00:43:01,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723735101] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:43:01,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:43:01,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-20 00:43:01,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130436497] [2022-07-20 00:43:01,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:43:01,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-20 00:43:01,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:43:01,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-20 00:43:01,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-07-20 00:43:01,463 INFO L87 Difference]: Start difference. First operand 17425 states and 23932 transitions. Second operand has 10 states, 10 states have (on average 11.6) internal successors, (116), 5 states have internal predecessors, (116), 2 states have call successors, (36), 7 states have call predecessors, (36), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-07-20 00:43:03,479 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 [] [2022-07-20 00:43:08,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:43:08,632 INFO L93 Difference]: Finished difference Result 35911 states and 49299 transitions. [2022-07-20 00:43:08,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-20 00:43:08,633 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.6) internal successors, (116), 5 states have internal predecessors, (116), 2 states have call successors, (36), 7 states have call predecessors, (36), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 386 [2022-07-20 00:43:08,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:43:08,693 INFO L225 Difference]: With dead ends: 35911 [2022-07-20 00:43:08,693 INFO L226 Difference]: Without dead ends: 18553 [2022-07-20 00:43:08,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2022-07-20 00:43:08,728 INFO L413 NwaCegarLoop]: 1221 mSDtfsCounter, 1222 mSDsluCounter, 2762 mSDsCounter, 0 mSdLazyCounter, 4458 mSolverCounterSat, 572 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1280 SdHoareTripleChecker+Valid, 3983 SdHoareTripleChecker+Invalid, 5031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 572 IncrementalHoareTripleChecker+Valid, 4458 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-07-20 00:43:08,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1280 Valid, 3983 Invalid, 5031 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [572 Valid, 4458 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-07-20 00:43:08,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18553 states. [2022-07-20 00:43:09,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18553 to 17405. [2022-07-20 00:43:09,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17405 states, 13448 states have (on average 1.3672665080309339) internal successors, (18387), 13788 states have internal predecessors, (18387), 2724 states have call successors, (2724), 1215 states have call predecessors, (2724), 1232 states have return successors, (2777), 2643 states have call predecessors, (2777), 2695 states have call successors, (2777) [2022-07-20 00:43:09,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17405 states to 17405 states and 23888 transitions. [2022-07-20 00:43:09,497 INFO L78 Accepts]: Start accepts. Automaton has 17405 states and 23888 transitions. Word has length 386 [2022-07-20 00:43:09,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:43:09,497 INFO L495 AbstractCegarLoop]: Abstraction has 17405 states and 23888 transitions. [2022-07-20 00:43:09,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.6) internal successors, (116), 5 states have internal predecessors, (116), 2 states have call successors, (36), 7 states have call predecessors, (36), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-07-20 00:43:09,498 INFO L276 IsEmpty]: Start isEmpty. Operand 17405 states and 23888 transitions. [2022-07-20 00:43:09,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2022-07-20 00:43:09,505 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:43:09,506 INFO L195 NwaCegarLoop]: trace histogram [18, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:43:09,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-20 00:43:09,506 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:43:09,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:43:09,506 INFO L85 PathProgramCache]: Analyzing trace with hash -458344134, now seen corresponding path program 1 times [2022-07-20 00:43:09,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:43:09,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504679848] [2022-07-20 00:43:09,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:43:09,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:43:09,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:09,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:43:09,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:09,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:43:09,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:09,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:43:09,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:09,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:43:09,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:09,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:43:09,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:09,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:43:09,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:09,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 00:43:09,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:09,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:43:09,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:09,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:43:09,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:09,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 00:43:09,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:09,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:43:09,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:09,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:43:09,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:09,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-20 00:43:09,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:09,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:43:09,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:09,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:43:09,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:09,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 00:43:09,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:09,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:43:09,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:09,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:43:09,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:09,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-20 00:43:09,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:09,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:43:09,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:09,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:43:09,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:09,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-20 00:43:09,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:09,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:43:09,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:09,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:43:09,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:09,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-20 00:43:09,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:09,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:43:09,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:09,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-20 00:43:09,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:09,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:43:09,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:09,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-20 00:43:09,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:09,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:43:09,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:09,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-20 00:43:09,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:09,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:43:09,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:09,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-20 00:43:09,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:10,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:43:10,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:10,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-07-20 00:43:10,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:10,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:43:10,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:10,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2022-07-20 00:43:10,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:10,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:43:10,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:10,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-07-20 00:43:10,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:10,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:43:10,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:10,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-07-20 00:43:10,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:10,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:43:10,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:10,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-07-20 00:43:10,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:10,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:43:10,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:10,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2022-07-20 00:43:10,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:10,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:43:10,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:10,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-07-20 00:43:10,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:10,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-07-20 00:43:10,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:10,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:43:10,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:10,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:43:10,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:10,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2022-07-20 00:43:10,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:10,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:43:10,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:10,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-07-20 00:43:10,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:10,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:43:10,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:10,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-07-20 00:43:10,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:10,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2022-07-20 00:43:10,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:10,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2022-07-20 00:43:10,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:10,175 INFO L134 CoverageAnalysis]: Checked inductivity of 1190 backedges. 2 proven. 123 refuted. 0 times theorem prover too weak. 1065 trivial. 0 not checked. [2022-07-20 00:43:10,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:43:10,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504679848] [2022-07-20 00:43:10,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504679848] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 00:43:10,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [898613621] [2022-07-20 00:43:10,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:43:10,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 00:43:10,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 00:43:10,180 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-20 00:43:10,184 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-20 00:43:19,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:19,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 3431 conjuncts, 14 conjunts are in the unsatisfiable core [2022-07-20 00:43:19,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 00:43:19,866 INFO L134 CoverageAnalysis]: Checked inductivity of 1190 backedges. 248 proven. 3 refuted. 0 times theorem prover too weak. 939 trivial. 0 not checked. [2022-07-20 00:43:19,866 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 00:43:20,583 INFO L134 CoverageAnalysis]: Checked inductivity of 1190 backedges. 2 proven. 123 refuted. 0 times theorem prover too weak. 1065 trivial. 0 not checked. [2022-07-20 00:43:20,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [898613621] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 00:43:20,584 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-20 00:43:20,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 8, 8] total 21 [2022-07-20 00:43:20,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821225423] [2022-07-20 00:43:20,585 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-20 00:43:20,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-07-20 00:43:20,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:43:20,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-07-20 00:43:20,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=362, Unknown=0, NotChecked=0, Total=420 [2022-07-20 00:43:20,587 INFO L87 Difference]: Start difference. First operand 17405 states and 23888 transitions. Second operand has 21 states, 19 states have (on average 9.473684210526315) internal successors, (180), 16 states have internal predecessors, (180), 4 states have call successors, (85), 7 states have call predecessors, (85), 6 states have return successors, (59), 4 states have call predecessors, (59), 4 states have call successors, (59) [2022-07-20 00:43:22,600 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:43:24,609 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:43:39,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:43:39,008 INFO L93 Difference]: Finished difference Result 35885 states and 49386 transitions. [2022-07-20 00:43:39,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-07-20 00:43:39,010 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 9.473684210526315) internal successors, (180), 16 states have internal predecessors, (180), 4 states have call successors, (85), 7 states have call predecessors, (85), 6 states have return successors, (59), 4 states have call predecessors, (59), 4 states have call successors, (59) Word has length 390 [2022-07-20 00:43:39,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:43:39,078 INFO L225 Difference]: With dead ends: 35885 [2022-07-20 00:43:39,078 INFO L226 Difference]: Without dead ends: 18458 [2022-07-20 00:43:39,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 919 GetRequests, 879 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 331 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=230, Invalid=1330, Unknown=0, NotChecked=0, Total=1560 [2022-07-20 00:43:39,125 INFO L413 NwaCegarLoop]: 1213 mSDtfsCounter, 1455 mSDsluCounter, 5889 mSDsCounter, 0 mSdLazyCounter, 9748 mSolverCounterSat, 803 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1522 SdHoareTripleChecker+Valid, 7102 SdHoareTripleChecker+Invalid, 10553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 803 IncrementalHoareTripleChecker+Valid, 9748 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.0s IncrementalHoareTripleChecker+Time [2022-07-20 00:43:39,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1522 Valid, 7102 Invalid, 10553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [803 Valid, 9748 Invalid, 2 Unknown, 0 Unchecked, 17.0s Time] [2022-07-20 00:43:39,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18458 states. [2022-07-20 00:43:39,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18458 to 17430. [2022-07-20 00:43:39,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17430 states, 13473 states have (on average 1.3665850218956432) internal successors, (18412), 13813 states have internal predecessors, (18412), 2724 states have call successors, (2724), 1215 states have call predecessors, (2724), 1232 states have return successors, (2777), 2643 states have call predecessors, (2777), 2695 states have call successors, (2777) [2022-07-20 00:43:39,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17430 states to 17430 states and 23913 transitions. [2022-07-20 00:43:39,945 INFO L78 Accepts]: Start accepts. Automaton has 17430 states and 23913 transitions. Word has length 390 [2022-07-20 00:43:39,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:43:39,945 INFO L495 AbstractCegarLoop]: Abstraction has 17430 states and 23913 transitions. [2022-07-20 00:43:39,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 9.473684210526315) internal successors, (180), 16 states have internal predecessors, (180), 4 states have call successors, (85), 7 states have call predecessors, (85), 6 states have return successors, (59), 4 states have call predecessors, (59), 4 states have call successors, (59) [2022-07-20 00:43:39,945 INFO L276 IsEmpty]: Start isEmpty. Operand 17430 states and 23913 transitions. [2022-07-20 00:43:39,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2022-07-20 00:43:39,954 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:43:39,954 INFO L195 NwaCegarLoop]: trace histogram [27, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:43:39,995 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-20 00:43:40,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 00:43:40,155 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:43:40,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:43:40,156 INFO L85 PathProgramCache]: Analyzing trace with hash -287414558, now seen corresponding path program 2 times [2022-07-20 00:43:40,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:43:40,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658152116] [2022-07-20 00:43:40,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:43:40,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:43:40,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:40,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:43:40,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:40,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:43:40,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:40,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:43:40,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:40,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:43:40,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:40,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:43:40,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:40,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:43:40,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:40,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 00:43:40,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:40,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:43:40,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:40,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:43:40,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:40,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 00:43:40,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:40,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:43:40,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:40,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:43:40,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:40,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-20 00:43:40,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:40,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:43:40,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:40,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:43:40,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:40,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 00:43:40,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:40,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:43:40,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:40,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:43:40,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:40,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-20 00:43:40,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:40,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:43:40,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:40,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:43:40,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:40,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-20 00:43:40,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:40,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:43:40,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:40,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:43:40,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:40,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-20 00:43:40,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:40,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:43:40,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:40,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-20 00:43:40,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:40,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:43:40,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:40,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-20 00:43:40,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:40,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:43:40,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:40,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-20 00:43:40,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:40,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:43:40,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:40,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2022-07-20 00:43:40,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:40,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:43:40,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:40,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-07-20 00:43:40,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:40,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:43:40,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:40,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-07-20 00:43:40,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:40,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:43:40,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:40,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2022-07-20 00:43:40,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:40,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:43:40,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:40,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-07-20 00:43:40,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:40,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:43:40,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:40,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-07-20 00:43:40,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:40,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:43:40,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:40,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-07-20 00:43:40,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:40,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:43:40,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:40,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2022-07-20 00:43:40,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:40,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2022-07-20 00:43:40,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:40,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:43:40,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:40,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:43:40,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:40,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2022-07-20 00:43:40,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:40,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:43:40,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:40,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-07-20 00:43:40,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:40,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:43:40,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:40,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2022-07-20 00:43:40,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:40,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2022-07-20 00:43:40,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:40,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2022-07-20 00:43:40,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:43:40,914 INFO L134 CoverageAnalysis]: Checked inductivity of 1469 backedges. 2 proven. 182 refuted. 0 times theorem prover too weak. 1285 trivial. 0 not checked. [2022-07-20 00:43:40,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:43:40,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658152116] [2022-07-20 00:43:40,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658152116] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 00:43:40,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1953035394] [2022-07-20 00:43:40,915 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-20 00:43:40,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 00:43:40,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 00:43:40,948 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-20 00:43:40,950 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process