./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 791161d1 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-?-791161d [2022-07-23 00:53:08,009 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 00:53:08,010 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 00:53:08,049 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 00:53:08,049 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 00:53:08,051 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 00:53:08,052 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 00:53:08,054 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 00:53:08,056 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 00:53:08,061 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 00:53:08,062 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 00:53:08,064 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 00:53:08,065 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 00:53:08,066 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 00:53:08,068 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 00:53:08,071 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 00:53:08,072 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 00:53:08,073 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 00:53:08,075 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 00:53:08,078 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 00:53:08,079 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 00:53:08,080 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 00:53:08,081 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 00:53:08,082 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 00:53:08,082 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 00:53:08,085 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 00:53:08,085 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 00:53:08,085 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 00:53:08,086 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 00:53:08,086 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 00:53:08,087 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 00:53:08,087 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 00:53:08,088 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 00:53:08,088 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 00:53:08,089 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 00:53:08,090 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 00:53:08,090 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 00:53:08,091 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 00:53:08,091 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 00:53:08,091 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 00:53:08,092 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 00:53:08,093 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 00:53:08,094 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-23 00:53:08,130 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 00:53:08,131 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 00:53:08,132 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 00:53:08,132 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 00:53:08,133 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 00:53:08,133 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 00:53:08,133 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 00:53:08,133 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 00:53:08,134 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 00:53:08,135 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 00:53:08,135 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 00:53:08,135 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 00:53:08,135 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 00:53:08,135 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 00:53:08,136 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 00:53:08,136 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 00:53:08,136 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 00:53:08,136 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 00:53:08,136 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 00:53:08,138 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 00:53:08,138 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 00:53:08,138 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 00:53:08,138 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 00:53:08,139 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 00:53:08,139 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 00:53:08,139 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 00:53:08,139 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-23 00:53:08,139 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-23 00:53:08,139 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-23 00:53:08,140 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 00:53:08,140 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d256a8b259faad28b260c065eb5db63197c2a9358a88ea40fe4f65cbd4165ef2 [2022-07-23 00:53:08,350 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 00:53:08,373 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 00:53:08,375 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 00:53:08,376 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 00:53:08,377 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 00:53:08,379 INFO L432 ainManager$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 [2022-07-23 00:53:08,431 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd3025311/0030f66ecb5745b496c7291d9bb45546/FLAGe6f46da0f [2022-07-23 00:53:09,078 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 00:53:09,080 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 [2022-07-23 00:53:09,120 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd3025311/0030f66ecb5745b496c7291d9bb45546/FLAGe6f46da0f [2022-07-23 00:53:09,214 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd3025311/0030f66ecb5745b496c7291d9bb45546 [2022-07-23 00:53:09,217 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 00:53:09,219 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 00:53:09,221 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 00:53:09,221 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 00:53:09,224 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 00:53:09,225 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 12:53:09" (1/1) ... [2022-07-23 00:53:09,226 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66ad003c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:53:09, skipping insertion in model container [2022-07-23 00:53:09,226 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 12:53:09" (1/1) ... [2022-07-23 00:53:09,231 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 00:53:09,323 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 00:53:10,291 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] [2022-07-23 00:53:10,382 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 00:53:10,422 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 00:53:10,683 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] [2022-07-23 00:53:10,704 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 00:53:10,806 INFO L208 MainTranslator]: Completed translation [2022-07-23 00:53:10,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:53:10 WrapperNode [2022-07-23 00:53:10,808 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 00:53:10,810 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 00:53:10,810 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 00:53:10,810 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 00:53:10,817 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:53:10" (1/1) ... [2022-07-23 00:53:10,877 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:53:10" (1/1) ... [2022-07-23 00:53:10,990 INFO L137 Inliner]: procedures = 259, calls = 1102, calls flagged for inlining = 115, calls inlined = 111, statements flattened = 2824 [2022-07-23 00:53:10,990 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 00:53:10,991 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 00:53:10,992 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 00:53:10,992 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 00:53:10,999 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:53:10" (1/1) ... [2022-07-23 00:53:10,999 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:53:10" (1/1) ... [2022-07-23 00:53:11,029 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:53:10" (1/1) ... [2022-07-23 00:53:11,030 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:53:10" (1/1) ... [2022-07-23 00:53:11,143 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:53:10" (1/1) ... [2022-07-23 00:53:11,164 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:53:10" (1/1) ... [2022-07-23 00:53:11,185 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:53:10" (1/1) ... [2022-07-23 00:53:11,213 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 00:53:11,214 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 00:53:11,214 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 00:53:11,215 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 00:53:11,216 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:53:10" (1/1) ... [2022-07-23 00:53:11,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 00:53:11,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 00:53:11,249 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) [2022-07-23 00:53:11,270 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 [2022-07-23 00:53:11,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-23 00:53:11,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-23 00:53:11,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-23 00:53:11,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-23 00:53:11,286 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_create [2022-07-23 00:53:11,286 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_create [2022-07-23 00:53:11,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-23 00:53:11,286 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-23 00:53:11,287 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-07-23 00:53:11,287 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-07-23 00:53:11,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-23 00:53:11,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-23 00:53:11,287 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-23 00:53:11,287 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-23 00:53:11,287 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_event [2022-07-23 00:53:11,288 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_event [2022-07-23 00:53:11,288 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-23 00:53:11,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-23 00:53:11,288 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_packet [2022-07-23 00:53:11,288 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_packet [2022-07-23 00:53:11,288 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-07-23 00:53:11,288 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-07-23 00:53:11,289 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-23 00:53:11,289 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-23 00:53:11,289 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-23 00:53:11,289 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-23 00:53:11,289 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-07-23 00:53:11,289 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-07-23 00:53:11,289 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_notify_readers [2022-07-23 00:53:11,289 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_notify_readers [2022-07-23 00:53:11,290 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-23 00:53:11,290 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-23 00:53:11,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-23 00:53:11,290 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-23 00:53:11,290 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-23 00:53:11,290 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_close_device [2022-07-23 00:53:11,290 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_close_device [2022-07-23 00:53:11,291 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-23 00:53:11,291 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_fasync [2022-07-23 00:53:11,291 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_fasync [2022-07-23 00:53:11,291 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2022-07-23 00:53:11,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2022-07-23 00:53:11,291 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_mousedev [2022-07-23 00:53:11,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_mousedev [2022-07-23 00:53:11,292 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_poll [2022-07-23 00:53:11,292 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_poll [2022-07-23 00:53:11,292 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-23 00:53:11,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-23 00:53:11,292 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2022-07-23 00:53:11,292 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2022-07-23 00:53:11,293 INFO L130 BoogieDeclarations]: Found specification of procedure input_abs_get_min [2022-07-23 00:53:11,293 INFO L138 BoogieDeclarations]: Found implementation of procedure input_abs_get_min [2022-07-23 00:53:11,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-23 00:53:11,293 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_destroy [2022-07-23 00:53:11,294 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_destroy [2022-07-23 00:53:11,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-23 00:53:11,294 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_2 [2022-07-23 00:53:11,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_2 [2022-07-23 00:53:11,295 INFO L130 BoogieDeclarations]: Found specification of procedure put_device [2022-07-23 00:53:11,296 INFO L138 BoogieDeclarations]: Found implementation of procedure put_device [2022-07-23 00:53:11,296 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2022-07-23 00:53:11,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2022-07-23 00:53:11,296 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_limit_delta [2022-07-23 00:53:11,296 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_limit_delta [2022-07-23 00:53:11,296 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-23 00:53:11,297 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-23 00:53:11,297 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-23 00:53:11,297 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-23 00:53:11,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-23 00:53:11,297 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-23 00:53:11,297 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-23 00:53:11,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-23 00:53:11,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-23 00:53:11,298 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_key_event [2022-07-23 00:53:11,298 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_key_event [2022-07-23 00:53:11,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-23 00:53:11,298 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-23 00:53:11,299 INFO L130 BoogieDeclarations]: Found specification of procedure get_device [2022-07-23 00:53:11,299 INFO L138 BoogieDeclarations]: Found implementation of procedure get_device [2022-07-23 00:53:11,299 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-23 00:53:11,299 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-23 00:53:11,299 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2022-07-23 00:53:11,300 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2022-07-23 00:53:11,300 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-23 00:53:11,300 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-23 00:53:11,300 INFO L130 BoogieDeclarations]: Found specification of procedure kill_fasync [2022-07-23 00:53:11,300 INFO L138 BoogieDeclarations]: Found implementation of procedure kill_fasync [2022-07-23 00:53:11,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-23 00:53:11,300 INFO L130 BoogieDeclarations]: Found specification of procedure input_close_device [2022-07-23 00:53:11,301 INFO L138 BoogieDeclarations]: Found implementation of procedure input_close_device [2022-07-23 00:53:11,301 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-07-23 00:53:11,301 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-07-23 00:53:11,301 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2022-07-23 00:53:11,302 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2022-07-23 00:53:11,302 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-23 00:53:11,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-23 00:53:11,303 INFO L130 BoogieDeclarations]: Found specification of procedure input_get_new_minor [2022-07-23 00:53:11,303 INFO L138 BoogieDeclarations]: Found implementation of procedure input_get_new_minor [2022-07-23 00:53:11,303 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-23 00:53:11,303 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-23 00:53:11,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-23 00:53:11,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-23 00:53:11,304 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_write [2022-07-23 00:53:11,304 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_write [2022-07-23 00:53:11,304 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-23 00:53:11,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-23 00:53:11,304 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_handle [2022-07-23 00:53:11,305 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_handle [2022-07-23 00:53:11,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-23 00:53:11,305 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-07-23 00:53:11,305 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-07-23 00:53:11,305 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-23 00:53:11,305 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_mousedev [2022-07-23 00:53:11,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_mousedev [2022-07-23 00:53:11,306 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-07-23 00:53:11,306 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-07-23 00:53:11,306 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_detach_client [2022-07-23 00:53:11,307 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_detach_client [2022-07-23 00:53:11,307 INFO L130 BoogieDeclarations]: Found specification of procedure input_abs_get_max [2022-07-23 00:53:11,309 INFO L138 BoogieDeclarations]: Found implementation of procedure input_abs_get_max [2022-07-23 00:53:11,309 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-07-23 00:53:11,309 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-07-23 00:53:11,309 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-07-23 00:53:11,310 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-07-23 00:53:11,311 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_minor [2022-07-23 00:53:11,311 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_minor [2022-07-23 00:53:11,312 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_cleanup [2022-07-23 00:53:11,312 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_cleanup [2022-07-23 00:53:11,317 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_open_device [2022-07-23 00:53:11,317 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_open_device [2022-07-23 00:53:11,317 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_disconnect [2022-07-23 00:53:11,317 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_disconnect [2022-07-23 00:53:11,317 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_mousedev [2022-07-23 00:53:11,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_mousedev [2022-07-23 00:53:11,318 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-23 00:53:11,318 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-23 00:53:11,318 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-23 00:53:11,318 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-23 00:53:11,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-23 00:53:11,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 00:53:11,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 00:53:11,318 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-23 00:53:11,319 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-23 00:53:11,908 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 00:53:11,910 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 00:53:12,135 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-23 00:53:18,753 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 00:53:18,784 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 00:53:18,790 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-23 00:53:18,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 12:53:18 BoogieIcfgContainer [2022-07-23 00:53:18,794 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 00:53:18,796 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-23 00:53:18,796 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-23 00:53:18,799 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-23 00:53:18,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 12:53:09" (1/3) ... [2022-07-23 00:53:18,800 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61894b7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 12:53:18, skipping insertion in model container [2022-07-23 00:53:18,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:53:10" (2/3) ... [2022-07-23 00:53:18,801 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61894b7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 12:53:18, skipping insertion in model container [2022-07-23 00:53:18,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 12:53:18" (3/3) ... [2022-07-23 00:53:18,802 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--input--mousedev.ko-entry_point.cil.out.i [2022-07-23 00:53:18,813 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-23 00:53:18,814 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-23 00:53:18,884 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-23 00:53:18,889 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@4a0439ea, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@36ce8c71 [2022-07-23 00:53:18,889 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-23 00:53:18,897 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) [2022-07-23 00:53:18,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-07-23 00:53:18,912 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:53:18,913 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] [2022-07-23 00:53:18,913 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:53:18,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:53:18,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1621751037, now seen corresponding path program 1 times [2022-07-23 00:53:18,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:53:18,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357015767] [2022-07-23 00:53:18,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:53:18,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:53:19,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:19,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:53:19,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:19,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:19,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:19,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:53:19,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:19,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 00:53:19,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:19,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:19,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:19,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:53:19,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:19,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 00:53:19,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:19,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:19,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:19,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:53:19,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:19,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 00:53:19,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:19,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:19,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:19,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:53:19,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:19,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-23 00:53:19,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:19,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:19,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:19,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:53:19,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:19,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-23 00:53:19,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:19,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:19,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:19,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:53:19,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:19,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-23 00:53:19,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:19,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:19,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:19,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:53:19,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:19,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-23 00:53:19,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:19,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:19,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:19,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:53:19,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:19,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-23 00:53:19,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:19,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:19,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:19,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-23 00:53:19,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:19,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:19,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:19,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-23 00:53:19,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:19,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:19,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:19,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-23 00:53:19,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:19,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:19,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:19,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-23 00:53:19,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:19,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:19,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:19,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-23 00:53:19,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:19,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:19,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:19,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-23 00:53:19,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:19,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:19,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:19,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-23 00:53:19,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:19,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:19,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:19,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-23 00:53:19,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:19,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:19,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:19,892 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 716 trivial. 0 not checked. [2022-07-23 00:53:19,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:53:19,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357015767] [2022-07-23 00:53:19,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357015767] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:53:19,894 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:53:19,894 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-23 00:53:19,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416891601] [2022-07-23 00:53:19,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:53:19,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 00:53:19,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:53:19,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 00:53:19,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-23 00:53:19,926 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) [2022-07-23 00:53:21,957 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 [] [2022-07-23 00:53:23,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:53:23,930 INFO L93 Difference]: Finished difference Result 2027 states and 2935 transitions. [2022-07-23 00:53:23,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-23 00:53:23,933 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 [2022-07-23 00:53:23,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:53:23,957 INFO L225 Difference]: With dead ends: 2027 [2022-07-23 00:53:23,957 INFO L226 Difference]: Without dead ends: 1038 [2022-07-23 00:53:23,969 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 [2022-07-23 00:53:23,975 INFO L413 NwaCegarLoop]: 1286 mSDtfsCounter, 1106 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 760 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1117 SdHoareTripleChecker+Valid, 1886 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 [2022-07-23 00:53:23,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1117 Valid, 1886 Invalid, 1154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [760 Valid, 393 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2022-07-23 00:53:23,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1038 states. [2022-07-23 00:53:24,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1038 to 972. [2022-07-23 00:53:24,114 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) [2022-07-23 00:53:24,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 972 states to 972 states and 1357 transitions. [2022-07-23 00:53:24,124 INFO L78 Accepts]: Start accepts. Automaton has 972 states and 1357 transitions. Word has length 244 [2022-07-23 00:53:24,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:53:24,124 INFO L495 AbstractCegarLoop]: Abstraction has 972 states and 1357 transitions. [2022-07-23 00:53:24,125 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) [2022-07-23 00:53:24,125 INFO L276 IsEmpty]: Start isEmpty. Operand 972 states and 1357 transitions. [2022-07-23 00:53:24,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-07-23 00:53:24,130 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:53:24,130 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] [2022-07-23 00:53:24,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-23 00:53:24,130 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:53:24,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:53:24,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1484346605, now seen corresponding path program 1 times [2022-07-23 00:53:24,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:53:24,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639600571] [2022-07-23 00:53:24,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:53:24,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:53:24,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:24,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:53:24,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:24,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:24,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:24,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:53:24,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:24,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 00:53:24,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:24,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:24,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:24,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:53:24,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:24,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 00:53:24,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:24,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:24,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:24,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:53:24,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:24,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 00:53:24,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:24,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:24,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:24,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:53:24,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:24,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-23 00:53:24,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:24,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:24,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:24,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:53:24,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:24,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-23 00:53:24,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:24,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:24,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:24,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:53:24,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:24,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-23 00:53:24,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:24,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:24,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:24,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:53:24,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:24,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-23 00:53:24,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:24,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:24,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:24,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:53:24,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:24,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-23 00:53:24,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:24,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:24,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:24,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-23 00:53:24,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:24,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:24,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:24,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-23 00:53:24,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:24,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:24,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:24,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-23 00:53:24,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:24,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:24,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:24,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-23 00:53:24,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:24,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:24,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:24,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-23 00:53:24,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:24,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:24,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:24,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-23 00:53:24,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:24,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:24,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:24,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-23 00:53:24,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:24,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:24,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:24,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-23 00:53:24,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:24,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:24,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:24,672 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 716 trivial. 0 not checked. [2022-07-23 00:53:24,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:53:24,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639600571] [2022-07-23 00:53:24,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639600571] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:53:24,673 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:53:24,673 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-23 00:53:24,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822786468] [2022-07-23 00:53:24,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:53:24,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 00:53:24,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:53:24,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 00:53:24,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-23 00:53:24,676 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) [2022-07-23 00:53:26,693 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 [] [2022-07-23 00:53:29,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:53:29,305 INFO L93 Difference]: Finished difference Result 2619 states and 3631 transitions. [2022-07-23 00:53:29,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-23 00:53:29,306 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 [2022-07-23 00:53:29,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:53:29,326 INFO L225 Difference]: With dead ends: 2619 [2022-07-23 00:53:29,326 INFO L226 Difference]: Without dead ends: 1689 [2022-07-23 00:53:29,330 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 [2022-07-23 00:53:29,331 INFO L413 NwaCegarLoop]: 1412 mSDtfsCounter, 2312 mSDsluCounter, 1444 mSDsCounter, 0 mSdLazyCounter, 1024 mSolverCounterSat, 1242 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2400 SdHoareTripleChecker+Valid, 2856 SdHoareTripleChecker+Invalid, 2267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1242 IncrementalHoareTripleChecker+Valid, 1024 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-07-23 00:53:29,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2400 Valid, 2856 Invalid, 2267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1242 Valid, 1024 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-07-23 00:53:29,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1689 states. [2022-07-23 00:53:29,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1689 to 1557. [2022-07-23 00:53:29,402 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) [2022-07-23 00:53:29,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1557 states to 1557 states and 2136 transitions. [2022-07-23 00:53:29,415 INFO L78 Accepts]: Start accepts. Automaton has 1557 states and 2136 transitions. Word has length 244 [2022-07-23 00:53:29,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:53:29,421 INFO L495 AbstractCegarLoop]: Abstraction has 1557 states and 2136 transitions. [2022-07-23 00:53:29,421 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) [2022-07-23 00:53:29,421 INFO L276 IsEmpty]: Start isEmpty. Operand 1557 states and 2136 transitions. [2022-07-23 00:53:29,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2022-07-23 00:53:29,428 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:53:29,428 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] [2022-07-23 00:53:29,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-23 00:53:29,429 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:53:29,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:53:29,429 INFO L85 PathProgramCache]: Analyzing trace with hash 2035960161, now seen corresponding path program 1 times [2022-07-23 00:53:29,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:53:29,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215186063] [2022-07-23 00:53:29,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:53:29,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:53:29,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:29,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:53:29,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:29,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:29,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:29,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:53:29,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:29,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 00:53:29,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:29,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:29,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:29,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:53:29,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:29,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 00:53:29,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:29,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:29,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:29,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:53:29,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:29,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 00:53:29,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:29,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:29,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:29,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:53:29,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:29,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-23 00:53:29,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:29,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:29,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:29,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:53:29,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:29,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-23 00:53:29,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:29,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:29,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:29,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:53:29,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:29,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-23 00:53:29,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:29,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:29,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:29,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:53:29,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:29,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-23 00:53:29,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:29,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:29,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:29,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:53:29,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:29,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-23 00:53:29,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:29,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:29,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:29,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-23 00:53:29,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:29,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:29,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:29,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-23 00:53:29,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:29,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:29,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:29,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-23 00:53:29,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:29,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:29,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:29,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-23 00:53:29,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:29,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:29,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:29,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-23 00:53:29,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:29,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:29,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:29,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-23 00:53:29,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:29,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:29,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:29,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-23 00:53:29,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:29,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:29,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:29,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-23 00:53:29,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:29,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:29,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:29,907 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 716 trivial. 0 not checked. [2022-07-23 00:53:29,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:53:29,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215186063] [2022-07-23 00:53:29,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215186063] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:53:29,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:53:29,908 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-23 00:53:29,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210361531] [2022-07-23 00:53:29,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:53:29,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 00:53:29,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:53:29,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 00:53:29,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-23 00:53:29,911 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) [2022-07-23 00:53:31,928 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 [] [2022-07-23 00:53:33,942 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:53:35,956 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:53:39,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:53:39,772 INFO L93 Difference]: Finished difference Result 4656 states and 6417 transitions. [2022-07-23 00:53:39,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-23 00:53:39,773 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 [2022-07-23 00:53:39,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:53:39,791 INFO L225 Difference]: With dead ends: 4656 [2022-07-23 00:53:39,791 INFO L226 Difference]: Without dead ends: 3145 [2022-07-23 00:53:39,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-23 00:53:39,802 INFO L413 NwaCegarLoop]: 1881 mSDtfsCounter, 2101 mSDsluCounter, 2383 mSDsCounter, 0 mSdLazyCounter, 1614 mSolverCounterSat, 912 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2213 SdHoareTripleChecker+Valid, 4264 SdHoareTripleChecker+Invalid, 2529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 912 IncrementalHoareTripleChecker+Valid, 1614 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2022-07-23 00:53:39,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2213 Valid, 4264 Invalid, 2529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [912 Valid, 1614 Invalid, 3 Unknown, 0 Unchecked, 9.6s Time] [2022-07-23 00:53:39,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3145 states. [2022-07-23 00:53:39,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3145 to 2921. [2022-07-23 00:53:39,908 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) [2022-07-23 00:53:39,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2921 states to 2921 states and 4004 transitions. [2022-07-23 00:53:39,924 INFO L78 Accepts]: Start accepts. Automaton has 2921 states and 4004 transitions. Word has length 249 [2022-07-23 00:53:39,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:53:39,926 INFO L495 AbstractCegarLoop]: Abstraction has 2921 states and 4004 transitions. [2022-07-23 00:53:39,928 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) [2022-07-23 00:53:39,928 INFO L276 IsEmpty]: Start isEmpty. Operand 2921 states and 4004 transitions. [2022-07-23 00:53:39,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2022-07-23 00:53:39,933 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:53:39,933 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] [2022-07-23 00:53:39,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-23 00:53:39,933 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:53:39,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:53:39,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1917858630, now seen corresponding path program 1 times [2022-07-23 00:53:39,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:53:39,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653769174] [2022-07-23 00:53:39,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:53:39,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:53:40,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:40,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:53:40,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:40,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:40,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:40,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:53:40,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:40,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 00:53:40,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:40,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:40,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:40,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:53:40,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:40,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 00:53:40,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:40,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:40,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:40,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:53:40,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:40,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 00:53:40,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:40,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:40,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:40,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:53:40,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:40,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-23 00:53:40,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:40,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:40,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:40,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:53:40,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:40,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-23 00:53:40,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:40,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:40,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:40,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:53:40,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:40,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-23 00:53:40,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:40,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:40,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:40,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:53:40,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:40,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-23 00:53:40,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:40,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:40,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:40,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:53:40,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:40,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-23 00:53:40,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:40,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:40,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:40,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-23 00:53:40,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:40,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:40,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:40,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-23 00:53:40,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:40,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:40,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:40,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-23 00:53:40,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:40,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:40,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:40,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-23 00:53:40,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:40,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:40,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:40,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-23 00:53:40,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:40,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:40,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:40,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-23 00:53:40,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:40,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:40,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:40,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-23 00:53:40,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:40,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:40,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:40,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-23 00:53:40,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:40,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:40,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:40,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-07-23 00:53:40,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:40,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:40,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:40,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-23 00:53:40,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:40,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-23 00:53:40,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:40,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-07-23 00:53:40,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:40,396 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 716 trivial. 0 not checked. [2022-07-23 00:53:40,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:53:40,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653769174] [2022-07-23 00:53:40,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653769174] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:53:40,397 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:53:40,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-23 00:53:40,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235093792] [2022-07-23 00:53:40,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:53:40,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 00:53:40,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:53:40,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 00:53:40,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-07-23 00:53:40,399 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) [2022-07-23 00:53:42,414 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:53:44,424 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:53:46,431 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:53:48,437 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:53:53,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:53:53,247 INFO L93 Difference]: Finished difference Result 7605 states and 10416 transitions. [2022-07-23 00:53:53,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-23 00:53:53,247 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 [2022-07-23 00:53:53,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:53:53,275 INFO L225 Difference]: With dead ends: 7605 [2022-07-23 00:53:53,276 INFO L226 Difference]: Without dead ends: 4740 [2022-07-23 00:53:53,288 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 [2022-07-23 00:53:53,289 INFO L413 NwaCegarLoop]: 1282 mSDtfsCounter, 2259 mSDsluCounter, 2529 mSDsCounter, 0 mSdLazyCounter, 2406 mSolverCounterSat, 1092 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2358 SdHoareTripleChecker+Valid, 3811 SdHoareTripleChecker+Invalid, 3502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1092 IncrementalHoareTripleChecker+Valid, 2406 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time [2022-07-23 00:53:53,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2358 Valid, 3811 Invalid, 3502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1092 Valid, 2406 Invalid, 4 Unknown, 0 Unchecked, 12.6s Time] [2022-07-23 00:53:53,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4740 states. [2022-07-23 00:53:53,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4740 to 4389. [2022-07-23 00:53:53,443 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) [2022-07-23 00:53:53,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4389 states to 4389 states and 5982 transitions. [2022-07-23 00:53:53,463 INFO L78 Accepts]: Start accepts. Automaton has 4389 states and 5982 transitions. Word has length 275 [2022-07-23 00:53:53,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:53:53,464 INFO L495 AbstractCegarLoop]: Abstraction has 4389 states and 5982 transitions. [2022-07-23 00:53:53,464 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) [2022-07-23 00:53:53,464 INFO L276 IsEmpty]: Start isEmpty. Operand 4389 states and 5982 transitions. [2022-07-23 00:53:53,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2022-07-23 00:53:53,467 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:53:53,467 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] [2022-07-23 00:53:53,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-23 00:53:53,468 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:53:53,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:53:53,468 INFO L85 PathProgramCache]: Analyzing trace with hash -423009600, now seen corresponding path program 1 times [2022-07-23 00:53:53,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:53:53,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941571145] [2022-07-23 00:53:53,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:53:53,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:53:53,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:53,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:53:53,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:53,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:53,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:53,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:53:53,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:53,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 00:53:53,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:53,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:53,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:53,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:53:53,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:53,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 00:53:53,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:53,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:53,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:53,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:53:53,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:53,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 00:53:53,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:53,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:53,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:53,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:53:53,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:53,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-23 00:53:53,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:53,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:53,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:53,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:53:53,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:53,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-23 00:53:53,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:53,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:53,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:53,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:53:53,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:53,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-23 00:53:53,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:53,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:53,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:53,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:53:53,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:53,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-23 00:53:53,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:53,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:53,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:53,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:53:53,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:53,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-23 00:53:53,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:53,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:53,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:53,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-23 00:53:53,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:53,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:53,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:53,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-23 00:53:53,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:53,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:53,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:53,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-23 00:53:53,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:53,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:53,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:53,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-23 00:53:53,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:53,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:53,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:53,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-23 00:53:53,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:53,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:53,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:53,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-23 00:53:53,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:53,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:53,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:53,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-23 00:53:53,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:53,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:53,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:53,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-23 00:53:53,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:53,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:53,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:53,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-23 00:53:53,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:54,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:53:54,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:54,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-07-23 00:53:54,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:54,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:54,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:54,024 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 716 trivial. 0 not checked. [2022-07-23 00:53:54,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:53:54,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941571145] [2022-07-23 00:53:54,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941571145] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:53:54,025 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:53:54,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-23 00:53:54,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751714548] [2022-07-23 00:53:54,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:53:54,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-23 00:53:54,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:53:54,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-23 00:53:54,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-07-23 00:53:54,027 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) [2022-07-23 00:53:56,044 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:53:58,055 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:54:00,061 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 [] [2022-07-23 00:54:04,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:54:04,556 INFO L93 Difference]: Finished difference Result 13050 states and 18031 transitions. [2022-07-23 00:54:04,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-23 00:54:04,558 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 [2022-07-23 00:54:04,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:54:04,612 INFO L225 Difference]: With dead ends: 13050 [2022-07-23 00:54:04,612 INFO L226 Difference]: Without dead ends: 8720 [2022-07-23 00:54:04,634 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 [2022-07-23 00:54:04,635 INFO L413 NwaCegarLoop]: 1282 mSDtfsCounter, 2594 mSDsluCounter, 1529 mSDsCounter, 0 mSdLazyCounter, 2800 mSolverCounterSat, 900 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2724 SdHoareTripleChecker+Valid, 2811 SdHoareTripleChecker+Invalid, 3703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 900 IncrementalHoareTripleChecker+Valid, 2800 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2022-07-23 00:54:04,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2724 Valid, 2811 Invalid, 3703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [900 Valid, 2800 Invalid, 3 Unknown, 0 Unchecked, 10.2s Time] [2022-07-23 00:54:04,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8720 states. [2022-07-23 00:54:05,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8720 to 8111. [2022-07-23 00:54:05,045 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) [2022-07-23 00:54:05,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8111 states to 8111 states and 11163 transitions. [2022-07-23 00:54:05,082 INFO L78 Accepts]: Start accepts. Automaton has 8111 states and 11163 transitions. Word has length 278 [2022-07-23 00:54:05,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:54:05,083 INFO L495 AbstractCegarLoop]: Abstraction has 8111 states and 11163 transitions. [2022-07-23 00:54:05,084 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) [2022-07-23 00:54:05,084 INFO L276 IsEmpty]: Start isEmpty. Operand 8111 states and 11163 transitions. [2022-07-23 00:54:05,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2022-07-23 00:54:05,088 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:54:05,088 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] [2022-07-23 00:54:05,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-23 00:54:05,089 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:54:05,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:54:05,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1539551512, now seen corresponding path program 1 times [2022-07-23 00:54:05,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:54:05,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407106734] [2022-07-23 00:54:05,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:54:05,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:54:05,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:05,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:54:05,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:05,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:05,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:05,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:54:05,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:05,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 00:54:05,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:05,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:05,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:05,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:54:05,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:05,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 00:54:05,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:05,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:05,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:05,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:54:05,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:05,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 00:54:05,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:05,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:05,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:05,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:54:05,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:05,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-23 00:54:05,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:05,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:05,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:05,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:54:05,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:05,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-23 00:54:05,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:05,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:05,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:05,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:54:05,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:05,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-23 00:54:05,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:05,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:05,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:05,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:54:05,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:05,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-23 00:54:05,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:05,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:05,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:05,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:54:05,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:05,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-23 00:54:05,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:05,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:05,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:05,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-23 00:54:05,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:05,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:05,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:05,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-23 00:54:05,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:05,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:05,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:05,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-23 00:54:05,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:05,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:05,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:05,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-23 00:54:05,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:05,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:05,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:05,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-23 00:54:05,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:05,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:05,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:05,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-23 00:54:05,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:05,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:05,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:05,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-23 00:54:05,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:05,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:05,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:05,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-23 00:54:05,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:05,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:05,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:05,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-23 00:54:05,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:05,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:54:05,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:05,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-07-23 00:54:05,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:05,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:05,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:05,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-07-23 00:54:05,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:05,654 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 716 trivial. 0 not checked. [2022-07-23 00:54:05,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:54:05,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407106734] [2022-07-23 00:54:05,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407106734] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:54:05,655 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:54:05,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-23 00:54:05,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079130962] [2022-07-23 00:54:05,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:54:05,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 00:54:05,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:54:05,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 00:54:05,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-07-23 00:54:05,657 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) [2022-07-23 00:54:07,673 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 [] [2022-07-23 00:54:09,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:54:09,634 INFO L93 Difference]: Finished difference Result 8629 states and 11927 transitions. [2022-07-23 00:54:09,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 00:54:09,634 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 [2022-07-23 00:54:09,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:54:09,741 INFO L225 Difference]: With dead ends: 8629 [2022-07-23 00:54:09,741 INFO L226 Difference]: Without dead ends: 8626 [2022-07-23 00:54:09,744 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 [2022-07-23 00:54:09,745 INFO L413 NwaCegarLoop]: 1265 mSDtfsCounter, 2234 mSDsluCounter, 1015 mSDsCounter, 0 mSdLazyCounter, 806 mSolverCounterSat, 878 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2333 SdHoareTripleChecker+Valid, 2280 SdHoareTripleChecker+Invalid, 1685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 878 IncrementalHoareTripleChecker+Valid, 806 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-07-23 00:54:09,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2333 Valid, 2280 Invalid, 1685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [878 Valid, 806 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2022-07-23 00:54:09,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8626 states. [2022-07-23 00:54:10,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8626 to 8110. [2022-07-23 00:54:10,042 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) [2022-07-23 00:54:10,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8110 states to 8110 states and 11160 transitions. [2022-07-23 00:54:10,071 INFO L78 Accepts]: Start accepts. Automaton has 8110 states and 11160 transitions. Word has length 279 [2022-07-23 00:54:10,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:54:10,071 INFO L495 AbstractCegarLoop]: Abstraction has 8110 states and 11160 transitions. [2022-07-23 00:54:10,071 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) [2022-07-23 00:54:10,072 INFO L276 IsEmpty]: Start isEmpty. Operand 8110 states and 11160 transitions. [2022-07-23 00:54:10,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2022-07-23 00:54:10,074 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:54:10,075 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] [2022-07-23 00:54:10,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-23 00:54:10,075 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:54:10,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:54:10,075 INFO L85 PathProgramCache]: Analyzing trace with hash 481205686, now seen corresponding path program 1 times [2022-07-23 00:54:10,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:54:10,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100336792] [2022-07-23 00:54:10,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:54:10,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:54:10,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:10,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:54:10,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:10,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:10,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:10,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:54:10,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:10,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 00:54:10,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:10,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:10,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:10,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:54:10,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:10,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 00:54:10,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:10,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:10,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:10,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:54:10,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:10,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 00:54:10,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:10,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:10,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:10,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:54:10,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:10,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-23 00:54:10,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:10,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:10,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:10,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:54:10,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:10,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-23 00:54:10,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:10,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:10,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:10,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:54:10,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:10,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-23 00:54:10,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:10,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:10,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:10,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:54:10,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:10,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-23 00:54:10,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:10,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:10,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:10,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:54:10,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:10,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-23 00:54:10,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:10,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:10,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:10,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-23 00:54:10,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:10,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:10,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:10,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-23 00:54:10,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:10,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:10,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:10,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-23 00:54:10,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:10,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:10,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:10,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-23 00:54:10,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:10,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:10,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:10,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-23 00:54:10,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:10,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:10,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:10,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-23 00:54:10,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:10,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:10,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:10,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-23 00:54:10,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:10,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:10,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:10,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-23 00:54:10,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:10,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:10,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:10,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-23 00:54:10,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:10,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:54:10,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:10,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-07-23 00:54:10,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:10,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:10,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:10,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-07-23 00:54:10,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:10,559 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 716 trivial. 0 not checked. [2022-07-23 00:54:10,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:54:10,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100336792] [2022-07-23 00:54:10,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100336792] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:54:10,559 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:54:10,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-23 00:54:10,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706375230] [2022-07-23 00:54:10,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:54:10,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 00:54:10,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:54:10,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 00:54:10,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-07-23 00:54:10,561 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) [2022-07-23 00:54:12,587 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:54:14,591 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:54:16,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:54:16,900 INFO L93 Difference]: Finished difference Result 8628 states and 11924 transitions. [2022-07-23 00:54:16,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 00:54:16,901 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 [2022-07-23 00:54:16,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:54:16,942 INFO L225 Difference]: With dead ends: 8628 [2022-07-23 00:54:16,942 INFO L226 Difference]: Without dead ends: 8625 [2022-07-23 00:54:16,946 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 [2022-07-23 00:54:16,947 INFO L413 NwaCegarLoop]: 1263 mSDtfsCounter, 1651 mSDsluCounter, 881 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 446 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1748 SdHoareTripleChecker+Valid, 2144 SdHoareTripleChecker+Invalid, 1464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 446 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-07-23 00:54:16,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1748 Valid, 2144 Invalid, 1464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [446 Valid, 1016 Invalid, 2 Unknown, 0 Unchecked, 6.1s Time] [2022-07-23 00:54:16,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8625 states. [2022-07-23 00:54:17,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8625 to 8109. [2022-07-23 00:54:17,262 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) [2022-07-23 00:54:17,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8109 states to 8109 states and 11157 transitions. [2022-07-23 00:54:17,345 INFO L78 Accepts]: Start accepts. Automaton has 8109 states and 11157 transitions. Word has length 280 [2022-07-23 00:54:17,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:54:17,347 INFO L495 AbstractCegarLoop]: Abstraction has 8109 states and 11157 transitions. [2022-07-23 00:54:17,347 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) [2022-07-23 00:54:17,347 INFO L276 IsEmpty]: Start isEmpty. Operand 8109 states and 11157 transitions. [2022-07-23 00:54:17,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2022-07-23 00:54:17,350 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:54:17,350 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] [2022-07-23 00:54:17,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-23 00:54:17,350 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:54:17,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:54:17,351 INFO L85 PathProgramCache]: Analyzing trace with hash 2032228315, now seen corresponding path program 1 times [2022-07-23 00:54:17,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:54:17,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288562647] [2022-07-23 00:54:17,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:54:17,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:54:17,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:17,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:54:17,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:17,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:17,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:17,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:54:17,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:17,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 00:54:17,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:17,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:17,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:17,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:54:17,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:17,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 00:54:17,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:17,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:17,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:17,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:54:17,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:17,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 00:54:17,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:17,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:17,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:17,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:54:17,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:17,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-23 00:54:17,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:17,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:17,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:17,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:54:17,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:17,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-23 00:54:17,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:17,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:17,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:17,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:54:17,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:17,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-23 00:54:17,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:17,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:17,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:17,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:54:17,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:17,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-23 00:54:17,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:17,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:17,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:17,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:54:17,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:17,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-23 00:54:17,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:17,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:17,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:17,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-23 00:54:17,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:17,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:17,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:17,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-23 00:54:17,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:17,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:17,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:17,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-23 00:54:17,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:17,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:17,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:17,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-23 00:54:17,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:17,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:17,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:17,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-23 00:54:17,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:17,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:17,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:17,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-23 00:54:17,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:17,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:17,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:17,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-23 00:54:17,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:17,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:17,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:17,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-23 00:54:17,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:17,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:17,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:17,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-23 00:54:17,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:17,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:54:17,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:17,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-07-23 00:54:17,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:17,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:17,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:17,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-07-23 00:54:17,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:17,796 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 716 trivial. 0 not checked. [2022-07-23 00:54:17,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:54:17,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288562647] [2022-07-23 00:54:17,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288562647] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:54:17,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:54:17,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-23 00:54:17,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686640500] [2022-07-23 00:54:17,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:54:17,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 00:54:17,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:54:17,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 00:54:17,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-07-23 00:54:17,798 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) [2022-07-23 00:54:19,815 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:54:21,826 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:54:24,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:54:24,457 INFO L93 Difference]: Finished difference Result 8627 states and 11921 transitions. [2022-07-23 00:54:24,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 00:54:24,458 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 [2022-07-23 00:54:24,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:54:24,492 INFO L225 Difference]: With dead ends: 8627 [2022-07-23 00:54:24,493 INFO L226 Difference]: Without dead ends: 8581 [2022-07-23 00:54:24,501 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 [2022-07-23 00:54:24,502 INFO L413 NwaCegarLoop]: 1265 mSDtfsCounter, 1649 mSDsluCounter, 887 mSDsCounter, 0 mSdLazyCounter, 1015 mSolverCounterSat, 443 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1746 SdHoareTripleChecker+Valid, 2152 SdHoareTripleChecker+Invalid, 1460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 443 IncrementalHoareTripleChecker+Valid, 1015 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-07-23 00:54:24,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1746 Valid, 2152 Invalid, 1460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [443 Valid, 1015 Invalid, 2 Unknown, 0 Unchecked, 6.4s Time] [2022-07-23 00:54:24,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8581 states. [2022-07-23 00:54:24,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8581 to 8063. [2022-07-23 00:54:24,828 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) [2022-07-23 00:54:24,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8063 states to 8063 states and 11088 transitions. [2022-07-23 00:54:24,857 INFO L78 Accepts]: Start accepts. Automaton has 8063 states and 11088 transitions. Word has length 281 [2022-07-23 00:54:24,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:54:24,858 INFO L495 AbstractCegarLoop]: Abstraction has 8063 states and 11088 transitions. [2022-07-23 00:54:24,858 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) [2022-07-23 00:54:24,858 INFO L276 IsEmpty]: Start isEmpty. Operand 8063 states and 11088 transitions. [2022-07-23 00:54:24,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2022-07-23 00:54:24,862 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:54:24,862 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] [2022-07-23 00:54:24,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-23 00:54:24,862 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:54:24,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:54:24,863 INFO L85 PathProgramCache]: Analyzing trace with hash -121604085, now seen corresponding path program 1 times [2022-07-23 00:54:24,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:54:24,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565710117] [2022-07-23 00:54:24,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:54:24,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:54:24,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:25,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:54:25,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:25,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:25,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:25,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:54:25,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:25,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 00:54:25,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:25,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:25,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:25,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:54:25,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:25,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 00:54:25,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:25,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:25,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:25,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:54:25,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:25,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 00:54:25,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:25,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:25,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:25,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:54:25,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:25,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-23 00:54:25,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:25,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:25,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:25,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:54:25,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:25,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-23 00:54:25,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:25,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:25,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:25,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:54:25,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:25,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-23 00:54:25,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:25,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:25,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:25,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:54:25,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:25,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-23 00:54:25,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:25,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:25,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:25,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:54:25,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:25,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-23 00:54:25,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:25,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:25,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:25,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-23 00:54:25,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:25,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:25,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:25,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-23 00:54:25,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:25,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:25,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:25,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-23 00:54:25,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:25,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:25,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:25,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-23 00:54:25,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:25,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:25,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:25,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-23 00:54:25,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:25,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:25,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:25,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-23 00:54:25,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:25,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:25,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:25,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-23 00:54:25,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:25,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:25,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:25,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-23 00:54:25,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:25,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:25,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:25,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-23 00:54:25,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:25,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:54:25,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:25,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-07-23 00:54:25,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:25,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:25,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:25,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2022-07-23 00:54:25,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:25,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-07-23 00:54:25,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:25,283 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 716 trivial. 0 not checked. [2022-07-23 00:54:25,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:54:25,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565710117] [2022-07-23 00:54:25,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565710117] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:54:25,284 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:54:25,284 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-23 00:54:25,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649587908] [2022-07-23 00:54:25,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:54:25,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-23 00:54:25,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:54:25,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-23 00:54:25,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-07-23 00:54:25,286 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) [2022-07-23 00:54:27,303 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:54:29,310 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:54:31,319 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:54:33,329 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:54:38,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:54:38,610 INFO L93 Difference]: Finished difference Result 16468 states and 22663 transitions. [2022-07-23 00:54:38,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-23 00:54:38,611 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 [2022-07-23 00:54:38,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:54:38,645 INFO L225 Difference]: With dead ends: 16468 [2022-07-23 00:54:38,645 INFO L226 Difference]: Without dead ends: 8427 [2022-07-23 00:54:38,679 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 [2022-07-23 00:54:38,679 INFO L413 NwaCegarLoop]: 2098 mSDtfsCounter, 1853 mSDsluCounter, 2132 mSDsCounter, 0 mSdLazyCounter, 3369 mSolverCounterSat, 696 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1966 SdHoareTripleChecker+Valid, 4230 SdHoareTripleChecker+Invalid, 4069 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 696 IncrementalHoareTripleChecker+Valid, 3369 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.9s IncrementalHoareTripleChecker+Time [2022-07-23 00:54:38,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1966 Valid, 4230 Invalid, 4069 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [696 Valid, 3369 Invalid, 4 Unknown, 0 Unchecked, 12.9s Time] [2022-07-23 00:54:38,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8427 states. [2022-07-23 00:54:39,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8427 to 7724. [2022-07-23 00:54:39,061 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) [2022-07-23 00:54:39,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7724 states to 7724 states and 10538 transitions. [2022-07-23 00:54:39,090 INFO L78 Accepts]: Start accepts. Automaton has 7724 states and 10538 transitions. Word has length 289 [2022-07-23 00:54:39,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:54:39,091 INFO L495 AbstractCegarLoop]: Abstraction has 7724 states and 10538 transitions. [2022-07-23 00:54:39,091 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) [2022-07-23 00:54:39,091 INFO L276 IsEmpty]: Start isEmpty. Operand 7724 states and 10538 transitions. [2022-07-23 00:54:39,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2022-07-23 00:54:39,096 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:54:39,096 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] [2022-07-23 00:54:39,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-23 00:54:39,097 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:54:39,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:54:39,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1803979798, now seen corresponding path program 1 times [2022-07-23 00:54:39,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:54:39,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792303044] [2022-07-23 00:54:39,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:54:39,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:54:39,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:39,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:54:39,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:39,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:39,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:39,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:54:39,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:39,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 00:54:39,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:39,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:39,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:39,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:54:39,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:39,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 00:54:39,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:39,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:39,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:39,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:54:39,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:39,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 00:54:39,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:39,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:39,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:39,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:54:39,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:39,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-23 00:54:39,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:39,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:39,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:39,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:54:39,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:39,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-23 00:54:39,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:39,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:39,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:39,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:54:39,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:39,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-23 00:54:39,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:39,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:39,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:39,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:54:39,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:39,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-23 00:54:39,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:39,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:39,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:39,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:54:39,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:39,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-23 00:54:39,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:39,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:39,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:39,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-23 00:54:39,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:39,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:39,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:39,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-23 00:54:39,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:39,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:39,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:39,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-23 00:54:39,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:39,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:39,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:39,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-23 00:54:39,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:39,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:39,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:39,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-23 00:54:39,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:39,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:39,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:39,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-23 00:54:39,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:39,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:39,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:39,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-23 00:54:39,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:39,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:39,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:39,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-23 00:54:39,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:39,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:39,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:39,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-23 00:54:39,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:39,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:54:39,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:39,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-07-23 00:54:39,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:39,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:39,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:39,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-07-23 00:54:39,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:39,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-07-23 00:54:39,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:39,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:39,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:39,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:54:39,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:39,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2022-07-23 00:54:39,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:39,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2022-07-23 00:54:39,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:39,492 INFO L134 CoverageAnalysis]: Checked inductivity of 832 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 828 trivial. 0 not checked. [2022-07-23 00:54:39,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:54:39,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792303044] [2022-07-23 00:54:39,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792303044] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:54:39,493 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:54:39,493 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-23 00:54:39,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827625086] [2022-07-23 00:54:39,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:54:39,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-23 00:54:39,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:54:39,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-23 00:54:39,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-07-23 00:54:39,495 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) [2022-07-23 00:54:41,513 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:54:43,520 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:54:45,525 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:54:47,535 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:54:52,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:54:52,925 INFO L93 Difference]: Finished difference Result 20853 states and 28621 transitions. [2022-07-23 00:54:52,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-23 00:54:52,925 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 [2022-07-23 00:54:52,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:54:52,986 INFO L225 Difference]: With dead ends: 20853 [2022-07-23 00:54:52,986 INFO L226 Difference]: Without dead ends: 13189 [2022-07-23 00:54:53,020 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 [2022-07-23 00:54:53,020 INFO L413 NwaCegarLoop]: 1906 mSDtfsCounter, 3149 mSDsluCounter, 2195 mSDsCounter, 0 mSdLazyCounter, 3048 mSolverCounterSat, 1359 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s 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, 12.9s IncrementalHoareTripleChecker+Time [2022-07-23 00:54:53,021 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3283 Valid, 4101 Invalid, 4411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1359 Valid, 3048 Invalid, 4 Unknown, 0 Unchecked, 12.9s Time] [2022-07-23 00:54:53,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13189 states. [2022-07-23 00:54:53,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13189 to 12305. [2022-07-23 00:54:53,529 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) [2022-07-23 00:54:53,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12305 states to 12305 states and 16910 transitions. [2022-07-23 00:54:53,579 INFO L78 Accepts]: Start accepts. Automaton has 12305 states and 16910 transitions. Word has length 320 [2022-07-23 00:54:53,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:54:53,580 INFO L495 AbstractCegarLoop]: Abstraction has 12305 states and 16910 transitions. [2022-07-23 00:54:53,580 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) [2022-07-23 00:54:53,580 INFO L276 IsEmpty]: Start isEmpty. Operand 12305 states and 16910 transitions. [2022-07-23 00:54:53,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2022-07-23 00:54:53,586 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:54:53,586 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] [2022-07-23 00:54:53,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-23 00:54:53,587 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:54:53,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:54:53,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1888079850, now seen corresponding path program 1 times [2022-07-23 00:54:53,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:54:53,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436790408] [2022-07-23 00:54:53,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:54:53,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:54:53,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:53,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:54:53,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:53,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:53,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:53,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:54:53,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:53,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 00:54:53,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:53,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:53,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:53,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:54:53,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:53,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 00:54:53,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:53,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:53,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:53,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:54:53,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:53,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 00:54:53,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:53,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:53,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:53,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:54:53,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:53,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-23 00:54:53,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:53,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:53,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:53,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:54:53,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:53,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-23 00:54:53,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:53,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:53,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:53,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:54:53,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:53,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-23 00:54:53,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:53,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:53,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:53,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:54:53,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:53,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-23 00:54:53,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:53,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:53,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:53,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:54:53,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:53,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-23 00:54:53,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:53,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:53,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:53,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-23 00:54:53,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:53,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:53,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:53,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-23 00:54:53,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:53,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:53,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:53,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-23 00:54:53,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:53,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:53,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:53,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-23 00:54:53,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:53,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:53,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:53,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-23 00:54:53,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:53,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:53,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:53,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-23 00:54:53,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:53,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:53,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:53,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-23 00:54:53,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:53,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:53,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:53,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-23 00:54:53,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:53,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:53,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:54,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-23 00:54:54,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:54,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:54:54,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:54,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-07-23 00:54:54,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:54,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:54,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:54,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-07-23 00:54:54,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:54,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-07-23 00:54:54,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:54,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:54,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:54,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:54:54,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:54,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-07-23 00:54:54,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:54,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2022-07-23 00:54:54,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:54,046 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 830 trivial. 0 not checked. [2022-07-23 00:54:54,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:54:54,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436790408] [2022-07-23 00:54:54,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436790408] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:54:54,047 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:54:54,047 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-23 00:54:54,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789960497] [2022-07-23 00:54:54,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:54:54,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-23 00:54:54,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:54:54,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-23 00:54:54,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-07-23 00:54:54,050 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) [2022-07-23 00:54:56,066 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:54:58,073 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:55:05,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:55:05,443 INFO L93 Difference]: Finished difference Result 30322 states and 41767 transitions. [2022-07-23 00:55:05,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-23 00:55:05,444 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 [2022-07-23 00:55:05,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:55:05,521 INFO L225 Difference]: With dead ends: 30322 [2022-07-23 00:55:05,521 INFO L226 Difference]: Without dead ends: 18077 [2022-07-23 00:55:05,555 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 [2022-07-23 00:55:05,556 INFO L413 NwaCegarLoop]: 2238 mSDtfsCounter, 1854 mSDsluCounter, 3287 mSDsCounter, 0 mSdLazyCounter, 5410 mSolverCounterSat, 687 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1999 SdHoareTripleChecker+Valid, 5525 SdHoareTripleChecker+Invalid, 6099 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 687 IncrementalHoareTripleChecker+Valid, 5410 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2022-07-23 00:55:05,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1999 Valid, 5525 Invalid, 6099 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [687 Valid, 5410 Invalid, 2 Unknown, 0 Unchecked, 10.7s Time] [2022-07-23 00:55:05,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18077 states. [2022-07-23 00:55:06,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18077 to 16895. [2022-07-23 00:55:06,288 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) [2022-07-23 00:55:06,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16895 states to 16895 states and 23298 transitions. [2022-07-23 00:55:06,348 INFO L78 Accepts]: Start accepts. Automaton has 16895 states and 23298 transitions. Word has length 330 [2022-07-23 00:55:06,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:55:06,349 INFO L495 AbstractCegarLoop]: Abstraction has 16895 states and 23298 transitions. [2022-07-23 00:55:06,349 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) [2022-07-23 00:55:06,349 INFO L276 IsEmpty]: Start isEmpty. Operand 16895 states and 23298 transitions. [2022-07-23 00:55:06,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2022-07-23 00:55:06,362 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:55:06,362 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] [2022-07-23 00:55:06,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-23 00:55:06,362 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:55:06,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:55:06,363 INFO L85 PathProgramCache]: Analyzing trace with hash 954133377, now seen corresponding path program 1 times [2022-07-23 00:55:06,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:55:06,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502842863] [2022-07-23 00:55:06,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:55:06,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:55:06,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:06,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:55:06,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:06,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:06,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:06,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:55:06,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:06,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 00:55:06,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:06,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:06,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:06,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:55:06,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:06,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 00:55:06,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:06,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:06,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:06,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:55:06,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:06,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 00:55:06,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:06,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:06,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:06,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:55:06,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:06,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-23 00:55:06,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:06,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:06,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:06,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:55:06,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:06,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-23 00:55:06,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:06,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:06,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:06,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:55:06,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:06,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-23 00:55:06,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:06,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:06,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:06,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:55:06,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:06,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-23 00:55:06,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:06,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:06,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:06,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:55:06,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:06,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-23 00:55:06,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:06,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:06,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:06,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-23 00:55:06,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:06,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:06,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:06,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-23 00:55:06,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:06,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:06,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:06,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-23 00:55:06,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:06,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:06,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:06,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-23 00:55:06,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:06,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:06,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:06,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-23 00:55:06,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:06,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:06,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:06,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-23 00:55:06,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:06,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:06,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:06,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-23 00:55:06,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:06,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:06,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:06,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-23 00:55:06,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:06,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:06,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:06,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-23 00:55:06,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:06,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:55:06,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:06,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-07-23 00:55:06,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:06,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:06,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:06,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2022-07-23 00:55:06,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:06,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:06,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:06,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:06,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:06,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:55:06,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:06,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-23 00:55:06,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:06,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:06,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:06,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:55:06,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:06,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-07-23 00:55:06,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:06,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:06,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:06,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-23 00:55:06,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:06,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-23 00:55:06,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:06,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2022-07-23 00:55:06,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:06,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-07-23 00:55:06,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:06,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-07-23 00:55:06,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:06,841 INFO L134 CoverageAnalysis]: Checked inductivity of 959 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 954 trivial. 0 not checked. [2022-07-23 00:55:06,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:55:06,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502842863] [2022-07-23 00:55:06,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502842863] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:55:06,841 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:55:06,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-23 00:55:06,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787785252] [2022-07-23 00:55:06,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:55:06,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-23 00:55:06,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:55:06,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-23 00:55:06,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-07-23 00:55:06,843 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) [2022-07-23 00:55:08,860 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:55:10,871 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:55:15,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:55:15,952 INFO L93 Difference]: Finished difference Result 36656 states and 50869 transitions. [2022-07-23 00:55:15,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-23 00:55:15,953 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 [2022-07-23 00:55:15,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:55:16,050 INFO L225 Difference]: With dead ends: 36656 [2022-07-23 00:55:16,050 INFO L226 Difference]: Without dead ends: 19821 [2022-07-23 00:55:16,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2022-07-23 00:55:16,100 INFO L413 NwaCegarLoop]: 1357 mSDtfsCounter, 2756 mSDsluCounter, 1925 mSDsCounter, 0 mSdLazyCounter, 2849 mSolverCounterSat, 1183 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2854 SdHoareTripleChecker+Valid, 3282 SdHoareTripleChecker+Invalid, 4034 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1183 IncrementalHoareTripleChecker+Valid, 2849 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-07-23 00:55:16,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2854 Valid, 3282 Invalid, 4034 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1183 Valid, 2849 Invalid, 2 Unknown, 0 Unchecked, 8.3s Time] [2022-07-23 00:55:16,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19821 states. [2022-07-23 00:55:16,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19821 to 16875. [2022-07-23 00:55:16,873 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) [2022-07-23 00:55:17,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16875 states to 16875 states and 23270 transitions. [2022-07-23 00:55:17,041 INFO L78 Accepts]: Start accepts. Automaton has 16875 states and 23270 transitions. Word has length 371 [2022-07-23 00:55:17,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:55:17,042 INFO L495 AbstractCegarLoop]: Abstraction has 16875 states and 23270 transitions. [2022-07-23 00:55:17,043 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) [2022-07-23 00:55:17,043 INFO L276 IsEmpty]: Start isEmpty. Operand 16875 states and 23270 transitions. [2022-07-23 00:55:17,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2022-07-23 00:55:17,054 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:55:17,054 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] [2022-07-23 00:55:17,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-23 00:55:17,055 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:55:17,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:55:17,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1516586618, now seen corresponding path program 1 times [2022-07-23 00:55:17,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:55:17,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600024085] [2022-07-23 00:55:17,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:55:17,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:55:17,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:17,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:55:17,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:17,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:17,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:17,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:55:17,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:17,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 00:55:17,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:17,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:17,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:17,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:55:17,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:17,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 00:55:17,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:17,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:17,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:17,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:55:17,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:17,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 00:55:17,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:17,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:17,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:17,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:55:17,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:17,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-23 00:55:17,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:17,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:17,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:17,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:55:17,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:17,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-23 00:55:17,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:17,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:17,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:17,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:55:17,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:17,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-23 00:55:17,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:17,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:17,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:17,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:55:17,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:17,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-23 00:55:17,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:17,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:17,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:17,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:55:17,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:17,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-23 00:55:17,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:17,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:17,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:17,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-23 00:55:17,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:17,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:17,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:17,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-23 00:55:17,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:17,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:17,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:17,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-23 00:55:17,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:17,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:17,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:17,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-23 00:55:17,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:17,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:17,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:17,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-23 00:55:17,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:17,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:17,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:17,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-23 00:55:17,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:17,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:17,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:17,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-23 00:55:17,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:17,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:17,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:17,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-23 00:55:17,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:17,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:17,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:17,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-23 00:55:17,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:17,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:55:17,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:17,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-07-23 00:55:17,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:17,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:17,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:17,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-07-23 00:55:17,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:17,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-07-23 00:55:17,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:17,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:17,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:17,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:55:17,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:17,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2022-07-23 00:55:17,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:17,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:55:17,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:17,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2022-07-23 00:55:17,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:17,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:17,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:17,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-07-23 00:55:17,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:17,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2022-07-23 00:55:17,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:17,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:55:17,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:17,535 INFO L134 CoverageAnalysis]: Checked inductivity of 860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 860 trivial. 0 not checked. [2022-07-23 00:55:17,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:55:17,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600024085] [2022-07-23 00:55:17,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600024085] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:55:17,536 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:55:17,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-23 00:55:17,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305176770] [2022-07-23 00:55:17,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:55:17,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-23 00:55:17,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:55:17,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-23 00:55:17,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-07-23 00:55:17,538 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) [2022-07-23 00:55:19,554 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:55:21,562 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:55:27,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:55:27,370 INFO L93 Difference]: Finished difference Result 32455 states and 46237 transitions. [2022-07-23 00:55:27,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-23 00:55:27,371 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 [2022-07-23 00:55:27,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:55:27,522 INFO L225 Difference]: With dead ends: 32455 [2022-07-23 00:55:27,522 INFO L226 Difference]: Without dead ends: 25052 [2022-07-23 00:55:27,548 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 [2022-07-23 00:55:27,549 INFO L413 NwaCegarLoop]: 1653 mSDtfsCounter, 2594 mSDsluCounter, 4337 mSDsCounter, 0 mSdLazyCounter, 4835 mSolverCounterSat, 1159 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2733 SdHoareTripleChecker+Valid, 5990 SdHoareTripleChecker+Invalid, 5996 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1159 IncrementalHoareTripleChecker+Valid, 4835 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2022-07-23 00:55:27,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2733 Valid, 5990 Invalid, 5996 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1159 Valid, 4835 Invalid, 2 Unknown, 0 Unchecked, 8.8s Time] [2022-07-23 00:55:27,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25052 states. [2022-07-23 00:55:28,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25052 to 16866. [2022-07-23 00:55:28,369 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) [2022-07-23 00:55:28,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16866 states to 16866 states and 23253 transitions. [2022-07-23 00:55:28,443 INFO L78 Accepts]: Start accepts. Automaton has 16866 states and 23253 transitions. Word has length 367 [2022-07-23 00:55:28,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:55:28,444 INFO L495 AbstractCegarLoop]: Abstraction has 16866 states and 23253 transitions. [2022-07-23 00:55:28,444 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) [2022-07-23 00:55:28,444 INFO L276 IsEmpty]: Start isEmpty. Operand 16866 states and 23253 transitions. [2022-07-23 00:55:28,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2022-07-23 00:55:28,456 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:55:28,456 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] [2022-07-23 00:55:28,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-23 00:55:28,457 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:55:28,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:55:28,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1927062079, now seen corresponding path program 1 times [2022-07-23 00:55:28,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:55:28,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617755825] [2022-07-23 00:55:28,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:55:28,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:55:28,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:28,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:55:28,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:28,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:28,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:28,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:55:28,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:28,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 00:55:28,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:28,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:28,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:28,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:55:28,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:28,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 00:55:28,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:28,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:28,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:28,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:55:28,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:28,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 00:55:28,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:28,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:28,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:28,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:55:28,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:28,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-23 00:55:28,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:28,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:28,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:28,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:55:28,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:28,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-23 00:55:28,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:28,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:28,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:28,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:55:28,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:28,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-23 00:55:28,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:28,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:28,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:28,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:55:28,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:28,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-23 00:55:28,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:28,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:28,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:28,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:55:28,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:28,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-23 00:55:28,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:28,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:28,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:28,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-23 00:55:28,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:28,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:28,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:28,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-23 00:55:28,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:28,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:28,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:28,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-23 00:55:28,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:28,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:28,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:28,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-23 00:55:28,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:28,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:28,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:28,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-23 00:55:28,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:28,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:28,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:28,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-23 00:55:28,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:28,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:28,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:28,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-23 00:55:28,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:28,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:28,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:28,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-23 00:55:28,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:28,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:28,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:28,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-23 00:55:28,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:28,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:55:29,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:29,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-07-23 00:55:29,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:29,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:29,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:29,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-07-23 00:55:29,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:29,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-07-23 00:55:29,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:29,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:29,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:29,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:55:29,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:29,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2022-07-23 00:55:29,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:29,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:55:29,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:29,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2022-07-23 00:55:29,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:29,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:29,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:29,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-07-23 00:55:29,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:29,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2022-07-23 00:55:29,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:29,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:55:29,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:29,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-07-23 00:55:29,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:29,083 INFO L134 CoverageAnalysis]: Checked inductivity of 865 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 847 trivial. 0 not checked. [2022-07-23 00:55:29,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:55:29,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617755825] [2022-07-23 00:55:29,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617755825] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 00:55:29,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1640833270] [2022-07-23 00:55:29,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:55:29,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 00:55:29,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 00:55:29,086 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) [2022-07-23 00:55:29,090 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-23 00:55:30,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:30,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 3129 conjuncts, 26 conjunts are in the unsatisfiable core [2022-07-23 00:55:30,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:55:30,285 INFO L134 CoverageAnalysis]: Checked inductivity of 865 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 733 trivial. 0 not checked. [2022-07-23 00:55:30,285 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 00:55:30,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1640833270] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:55:30,286 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 00:55:30,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2022-07-23 00:55:30,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903988733] [2022-07-23 00:55:30,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:55:30,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 00:55:30,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:55:30,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 00:55:30,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-07-23 00:55:30,288 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) [2022-07-23 00:55:31,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:55:31,348 INFO L93 Difference]: Finished difference Result 34477 states and 47603 transitions. [2022-07-23 00:55:31,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-23 00:55:31,349 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 [2022-07-23 00:55:31,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:55:31,426 INFO L225 Difference]: With dead ends: 34477 [2022-07-23 00:55:31,426 INFO L226 Difference]: Without dead ends: 17269 [2022-07-23 00:55:31,473 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 [2022-07-23 00:55:31,474 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 [2022-07-23 00:55:31,474 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] [2022-07-23 00:55:31,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17269 states. [2022-07-23 00:55:32,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17269 to 17222. [2022-07-23 00:55:32,335 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) [2022-07-23 00:55:32,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17222 states to 17222 states and 23723 transitions. [2022-07-23 00:55:32,387 INFO L78 Accepts]: Start accepts. Automaton has 17222 states and 23723 transitions. Word has length 368 [2022-07-23 00:55:32,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:55:32,388 INFO L495 AbstractCegarLoop]: Abstraction has 17222 states and 23723 transitions. [2022-07-23 00:55:32,388 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) [2022-07-23 00:55:32,388 INFO L276 IsEmpty]: Start isEmpty. Operand 17222 states and 23723 transitions. [2022-07-23 00:55:32,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2022-07-23 00:55:32,400 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:55:32,401 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] [2022-07-23 00:55:32,436 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-23 00:55:32,627 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 [2022-07-23 00:55:32,628 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:55:32,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:55:32,628 INFO L85 PathProgramCache]: Analyzing trace with hash -644824137, now seen corresponding path program 1 times [2022-07-23 00:55:32,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:55:32,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160942441] [2022-07-23 00:55:32,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:55:32,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:55:32,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:32,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:55:32,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:32,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:32,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:32,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:55:32,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:32,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 00:55:32,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:32,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:32,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:32,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:55:32,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:32,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 00:55:32,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:32,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:32,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:32,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:55:32,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:32,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 00:55:32,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:32,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:32,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:32,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:55:32,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:32,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-23 00:55:32,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:32,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:32,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:32,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:55:32,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:32,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-23 00:55:32,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:32,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:32,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:32,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:55:32,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:32,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-23 00:55:32,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:32,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:32,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:32,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:55:32,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:32,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-23 00:55:32,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:32,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:32,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:32,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:55:32,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:32,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-23 00:55:32,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:33,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:33,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:33,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-23 00:55:33,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:33,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:33,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:33,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-23 00:55:33,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:33,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:33,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:33,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-23 00:55:33,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:33,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:33,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:33,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-23 00:55:33,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:33,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:33,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:33,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-23 00:55:33,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:33,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:33,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:33,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-23 00:55:33,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:33,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:33,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:33,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-23 00:55:33,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:33,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:33,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:33,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-23 00:55:33,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:33,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:33,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:33,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-23 00:55:33,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:33,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:55:33,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:33,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-07-23 00:55:33,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:33,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:33,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:33,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-07-23 00:55:33,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:33,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-07-23 00:55:33,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:33,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:33,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:33,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:55:33,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:33,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2022-07-23 00:55:33,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:33,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:55:33,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:33,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2022-07-23 00:55:33,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:33,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:33,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:33,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-07-23 00:55:33,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:33,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2022-07-23 00:55:33,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:33,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:55:33,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:33,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-07-23 00:55:33,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:33,231 INFO L134 CoverageAnalysis]: Checked inductivity of 862 backedges. 2 proven. 56 refuted. 0 times theorem prover too weak. 804 trivial. 0 not checked. [2022-07-23 00:55:33,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:55:33,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160942441] [2022-07-23 00:55:33,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160942441] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 00:55:33,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [444124615] [2022-07-23 00:55:33,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:55:33,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 00:55:33,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 00:55:33,233 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) [2022-07-23 00:55:33,234 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-23 00:55:35,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:35,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 3128 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-23 00:55:35,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:55:35,286 INFO L134 CoverageAnalysis]: Checked inductivity of 862 backedges. 184 proven. 0 refuted. 0 times theorem prover too weak. 678 trivial. 0 not checked. [2022-07-23 00:55:35,287 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 00:55:35,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [444124615] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:55:35,287 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 00:55:35,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 13 [2022-07-23 00:55:35,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812410235] [2022-07-23 00:55:35,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:55:35,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 00:55:35,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:55:35,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 00:55:35,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-07-23 00:55:35,291 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) [2022-07-23 00:55:36,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:55:36,232 INFO L93 Difference]: Finished difference Result 34488 states and 47635 transitions. [2022-07-23 00:55:36,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 00:55:36,233 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 [2022-07-23 00:55:36,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:55:36,305 INFO L225 Difference]: With dead ends: 34488 [2022-07-23 00:55:36,306 INFO L226 Difference]: Without dead ends: 17247 [2022-07-23 00:55:36,359 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 [2022-07-23 00:55:36,360 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 [2022-07-23 00:55:36,361 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] [2022-07-23 00:55:36,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17247 states. [2022-07-23 00:55:37,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17247 to 17247. [2022-07-23 00:55:37,078 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) [2022-07-23 00:55:37,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17247 states to 17247 states and 23748 transitions. [2022-07-23 00:55:37,126 INFO L78 Accepts]: Start accepts. Automaton has 17247 states and 23748 transitions. Word has length 368 [2022-07-23 00:55:37,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:55:37,126 INFO L495 AbstractCegarLoop]: Abstraction has 17247 states and 23748 transitions. [2022-07-23 00:55:37,127 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) [2022-07-23 00:55:37,127 INFO L276 IsEmpty]: Start isEmpty. Operand 17247 states and 23748 transitions. [2022-07-23 00:55:37,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2022-07-23 00:55:37,139 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:55:37,139 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] [2022-07-23 00:55:37,175 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-23 00:55:37,367 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 [2022-07-23 00:55:37,368 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:55:37,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:55:37,368 INFO L85 PathProgramCache]: Analyzing trace with hash 915778399, now seen corresponding path program 1 times [2022-07-23 00:55:37,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:55:37,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506315366] [2022-07-23 00:55:37,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:55:37,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:55:37,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:37,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:55:37,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:37,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:37,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:37,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:55:37,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:37,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 00:55:37,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:37,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:37,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:37,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:55:37,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:37,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 00:55:37,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:37,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:37,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:37,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:55:37,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:37,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 00:55:37,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:37,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:37,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:37,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:55:37,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:37,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-23 00:55:37,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:37,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:37,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:37,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:55:37,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:37,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-23 00:55:37,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:37,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:37,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:37,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:55:37,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:37,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-23 00:55:37,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:37,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:37,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:37,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:55:37,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:37,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-23 00:55:37,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:37,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:37,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:37,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:55:37,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:37,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-23 00:55:37,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:37,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:37,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:37,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-23 00:55:37,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:37,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:37,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:37,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-23 00:55:37,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:37,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:37,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:37,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-23 00:55:37,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:37,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:37,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:37,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-23 00:55:37,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:37,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:37,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:37,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-23 00:55:37,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:37,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:37,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:37,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-07-23 00:55:37,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:37,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:37,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:37,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-07-23 00:55:37,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:37,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:37,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:37,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2022-07-23 00:55:37,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:37,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:37,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:37,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-07-23 00:55:37,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:37,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:55:37,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:37,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-07-23 00:55:37,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:38,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:38,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:38,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2022-07-23 00:55:38,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:38,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-07-23 00:55:38,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:38,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:38,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:38,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:55:38,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:38,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-07-23 00:55:38,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:38,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:55:38,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:38,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2022-07-23 00:55:38,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:38,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:38,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:38,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2022-07-23 00:55:38,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:38,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2022-07-23 00:55:38,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:38,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:55:38,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:38,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-07-23 00:55:38,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:38,076 INFO L134 CoverageAnalysis]: Checked inductivity of 979 backedges. 2 proven. 81 refuted. 0 times theorem prover too weak. 896 trivial. 0 not checked. [2022-07-23 00:55:38,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:55:38,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506315366] [2022-07-23 00:55:38,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506315366] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 00:55:38,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [739238955] [2022-07-23 00:55:38,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:55:38,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 00:55:38,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 00:55:38,078 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) [2022-07-23 00:55:38,081 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-23 00:55:40,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:40,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 3263 conjuncts, 15 conjunts are in the unsatisfiable core [2022-07-23 00:55:40,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:55:40,825 INFO L134 CoverageAnalysis]: Checked inductivity of 979 backedges. 380 proven. 7 refuted. 0 times theorem prover too weak. 592 trivial. 0 not checked. [2022-07-23 00:55:40,825 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 00:55:41,331 INFO L134 CoverageAnalysis]: Checked inductivity of 979 backedges. 32 proven. 51 refuted. 0 times theorem prover too weak. 896 trivial. 0 not checked. [2022-07-23 00:55:41,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [739238955] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 00:55:41,332 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 00:55:41,332 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 7, 7] total 19 [2022-07-23 00:55:41,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838845154] [2022-07-23 00:55:41,332 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 00:55:41,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-23 00:55:41,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:55:41,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-23 00:55:41,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2022-07-23 00:55:41,335 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) [2022-07-23 00:55:43,351 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:55:45,358 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:55:47,366 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:55:56,664 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-23 00:56:00,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:56:00,834 INFO L93 Difference]: Finished difference Result 35595 states and 49137 transitions. [2022-07-23 00:56:00,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-23 00:56:00,836 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 [2022-07-23 00:56:00,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:56:00,923 INFO L225 Difference]: With dead ends: 35595 [2022-07-23 00:56:00,924 INFO L226 Difference]: Without dead ends: 18329 [2022-07-23 00:56:00,992 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 [2022-07-23 00:56:00,993 INFO L413 NwaCegarLoop]: 1209 mSDtfsCounter, 1740 mSDsluCounter, 5649 mSDsCounter, 0 mSdLazyCounter, 9214 mSolverCounterSat, 1021 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1807 SdHoareTripleChecker+Valid, 6858 SdHoareTripleChecker+Invalid, 10239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1021 IncrementalHoareTripleChecker+Valid, 9214 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.3s IncrementalHoareTripleChecker+Time [2022-07-23 00:56:00,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1807 Valid, 6858 Invalid, 10239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1021 Valid, 9214 Invalid, 4 Unknown, 0 Unchecked, 18.3s Time] [2022-07-23 00:56:01,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18329 states. [2022-07-23 00:56:01,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18329 to 17277. [2022-07-23 00:56:01,749 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) [2022-07-23 00:56:01,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17277 states to 17277 states and 23778 transitions. [2022-07-23 00:56:01,968 INFO L78 Accepts]: Start accepts. Automaton has 17277 states and 23778 transitions. Word has length 377 [2022-07-23 00:56:01,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:56:01,968 INFO L495 AbstractCegarLoop]: Abstraction has 17277 states and 23778 transitions. [2022-07-23 00:56:01,968 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) [2022-07-23 00:56:01,968 INFO L276 IsEmpty]: Start isEmpty. Operand 17277 states and 23778 transitions. [2022-07-23 00:56:01,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2022-07-23 00:56:01,978 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:56:01,979 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] [2022-07-23 00:56:02,024 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-23 00:56:02,203 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 [2022-07-23 00:56:02,204 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:56:02,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:56:02,205 INFO L85 PathProgramCache]: Analyzing trace with hash 171986615, now seen corresponding path program 2 times [2022-07-23 00:56:02,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:56:02,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923255235] [2022-07-23 00:56:02,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:56:02,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:56:02,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:02,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:56:02,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:02,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:02,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:02,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:56:02,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:02,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 00:56:02,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:02,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:02,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:02,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:56:02,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:02,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 00:56:02,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:02,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:02,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:02,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:56:02,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:02,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 00:56:02,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:02,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:02,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:02,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:56:02,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:02,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-23 00:56:02,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:02,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:02,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:02,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:56:02,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:02,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-23 00:56:02,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:02,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:02,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:02,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:56:02,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:02,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-23 00:56:02,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:02,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:02,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:02,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:56:02,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:02,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-23 00:56:02,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:02,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:02,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:02,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:56:02,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:02,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-23 00:56:02,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:02,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:02,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:02,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-23 00:56:02,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:02,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:02,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:02,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-23 00:56:02,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:02,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:02,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:02,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-23 00:56:02,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:02,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:02,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:02,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-23 00:56:02,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:02,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:02,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:02,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-07-23 00:56:02,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:02,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:02,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:02,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2022-07-23 00:56:02,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:02,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:02,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:02,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-07-23 00:56:02,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:02,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:02,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:02,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-07-23 00:56:02,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:02,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:02,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:02,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-07-23 00:56:02,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:02,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:56:02,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:02,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2022-07-23 00:56:02,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:02,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:02,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:02,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-07-23 00:56:02,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:02,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-07-23 00:56:02,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:02,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:02,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:02,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:56:02,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:02,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2022-07-23 00:56:02,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:02,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:56:02,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:02,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-07-23 00:56:02,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:02,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:02,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:02,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-07-23 00:56:02,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:02,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-07-23 00:56:02,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:02,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:56:02,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:02,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2022-07-23 00:56:02,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:02,936 INFO L134 CoverageAnalysis]: Checked inductivity of 1177 backedges. 2 proven. 123 refuted. 0 times theorem prover too weak. 1052 trivial. 0 not checked. [2022-07-23 00:56:02,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:56:02,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923255235] [2022-07-23 00:56:02,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923255235] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 00:56:02,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1651956778] [2022-07-23 00:56:02,937 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-23 00:56:02,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 00:56:02,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 00:56:02,939 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) [2022-07-23 00:56:02,944 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-23 00:56:04,231 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-23 00:56:04,231 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 00:56:04,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 1587 conjuncts, 76 conjunts are in the unsatisfiable core [2022-07-23 00:56:04,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:56:04,891 INFO L134 CoverageAnalysis]: Checked inductivity of 1177 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 1161 trivial. 0 not checked. [2022-07-23 00:56:04,891 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 00:56:04,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1651956778] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:56:04,892 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 00:56:04,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [13] total 31 [2022-07-23 00:56:04,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358876934] [2022-07-23 00:56:04,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:56:04,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-07-23 00:56:04,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:56:04,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-07-23 00:56:04,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=864, Unknown=0, NotChecked=0, Total=930 [2022-07-23 00:56:04,894 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) [2022-07-23 00:56:06,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:56:06,901 INFO L93 Difference]: Finished difference Result 38316 states and 53362 transitions. [2022-07-23 00:56:06,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-23 00:56:06,902 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 [2022-07-23 00:56:06,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:56:06,966 INFO L225 Difference]: With dead ends: 38316 [2022-07-23 00:56:06,966 INFO L226 Difference]: Without dead ends: 21088 [2022-07-23 00:56:07,004 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 [2022-07-23 00:56:07,004 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 [2022-07-23 00:56:07,005 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] [2022-07-23 00:56:07,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21088 states. [2022-07-23 00:56:07,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21088 to 17425. [2022-07-23 00:56:07,675 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) [2022-07-23 00:56:07,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17425 states to 17425 states and 23932 transitions. [2022-07-23 00:56:07,724 INFO L78 Accepts]: Start accepts. Automaton has 17425 states and 23932 transitions. Word has length 386 [2022-07-23 00:56:07,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:56:07,724 INFO L495 AbstractCegarLoop]: Abstraction has 17425 states and 23932 transitions. [2022-07-23 00:56:07,725 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) [2022-07-23 00:56:07,725 INFO L276 IsEmpty]: Start isEmpty. Operand 17425 states and 23932 transitions. [2022-07-23 00:56:07,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2022-07-23 00:56:07,733 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:56:07,733 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] [2022-07-23 00:56:07,761 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-23 00:56:07,943 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 [2022-07-23 00:56:07,943 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:56:07,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:56:07,944 INFO L85 PathProgramCache]: Analyzing trace with hash 615887289, now seen corresponding path program 1 times [2022-07-23 00:56:07,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:56:07,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615749631] [2022-07-23 00:56:07,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:56:07,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:56:08,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:08,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:56:08,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:08,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:08,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:08,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:56:08,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:08,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 00:56:08,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:08,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:08,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:08,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:56:08,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:08,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 00:56:08,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:08,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:08,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:08,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:56:08,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:08,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 00:56:08,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:08,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:08,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:08,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:56:08,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:08,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-23 00:56:08,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:08,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:08,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:08,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:56:08,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:08,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-23 00:56:08,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:08,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:08,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:08,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:56:08,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:08,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-23 00:56:08,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:08,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:08,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:08,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:56:08,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:08,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-23 00:56:08,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:08,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:08,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:08,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:56:08,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:08,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-23 00:56:08,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:08,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:08,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:08,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-23 00:56:08,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:08,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:08,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:08,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-23 00:56:08,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:08,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:08,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:08,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-23 00:56:08,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:08,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:08,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:08,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-23 00:56:08,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:08,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:08,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:08,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-07-23 00:56:08,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:08,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:08,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:08,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2022-07-23 00:56:08,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:08,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:08,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:08,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-07-23 00:56:08,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:08,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:08,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:08,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-07-23 00:56:08,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:08,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:08,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:08,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-07-23 00:56:08,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:08,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:56:08,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:08,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2022-07-23 00:56:08,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:08,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:08,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:08,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-07-23 00:56:08,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:08,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-07-23 00:56:08,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:08,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:08,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:08,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:56:08,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:08,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2022-07-23 00:56:08,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:08,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:56:08,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:08,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-07-23 00:56:08,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:08,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:08,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:08,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-07-23 00:56:08,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:08,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-07-23 00:56:08,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:08,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:56:08,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:08,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2022-07-23 00:56:08,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:08,491 INFO L134 CoverageAnalysis]: Checked inductivity of 1177 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1167 trivial. 0 not checked. [2022-07-23 00:56:08,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:56:08,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615749631] [2022-07-23 00:56:08,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615749631] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:56:08,492 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:56:08,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-23 00:56:08,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597951028] [2022-07-23 00:56:08,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:56:08,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-23 00:56:08,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:56:08,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-23 00:56:08,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-07-23 00:56:08,494 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) [2022-07-23 00:56:10,510 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 [] [2022-07-23 00:56:16,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:56:16,217 INFO L93 Difference]: Finished difference Result 35911 states and 49299 transitions. [2022-07-23 00:56:16,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-23 00:56:16,218 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 [2022-07-23 00:56:16,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:56:16,289 INFO L225 Difference]: With dead ends: 35911 [2022-07-23 00:56:16,289 INFO L226 Difference]: Without dead ends: 18553 [2022-07-23 00:56:16,333 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 [2022-07-23 00:56:16,333 INFO L413 NwaCegarLoop]: 1221 mSDtfsCounter, 1222 mSDsluCounter, 2762 mSDsCounter, 0 mSdLazyCounter, 4458 mSolverCounterSat, 572 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s 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, 6.6s IncrementalHoareTripleChecker+Time [2022-07-23 00:56:16,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1280 Valid, 3983 Invalid, 5031 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [572 Valid, 4458 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2022-07-23 00:56:16,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18553 states. [2022-07-23 00:56:16,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18553 to 17405. [2022-07-23 00:56:17,000 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) [2022-07-23 00:56:17,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17405 states to 17405 states and 23888 transitions. [2022-07-23 00:56:17,050 INFO L78 Accepts]: Start accepts. Automaton has 17405 states and 23888 transitions. Word has length 386 [2022-07-23 00:56:17,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:56:17,051 INFO L495 AbstractCegarLoop]: Abstraction has 17405 states and 23888 transitions. [2022-07-23 00:56:17,051 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) [2022-07-23 00:56:17,051 INFO L276 IsEmpty]: Start isEmpty. Operand 17405 states and 23888 transitions. [2022-07-23 00:56:17,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2022-07-23 00:56:17,059 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:56:17,059 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] [2022-07-23 00:56:17,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-23 00:56:17,059 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:56:17,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:56:17,060 INFO L85 PathProgramCache]: Analyzing trace with hash -458344134, now seen corresponding path program 1 times [2022-07-23 00:56:17,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:56:17,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888228791] [2022-07-23 00:56:17,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:56:17,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:56:17,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:17,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:56:17,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:17,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:17,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:17,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:56:17,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:17,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 00:56:17,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:17,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:17,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:17,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:56:17,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:17,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 00:56:17,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:17,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:17,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:17,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:56:17,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:17,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 00:56:17,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:17,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:17,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:17,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:56:17,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:17,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-23 00:56:17,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:17,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:17,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:17,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:56:17,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:17,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-23 00:56:17,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:17,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:17,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:17,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:56:17,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:17,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-23 00:56:17,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:17,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:17,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:17,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:56:17,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:17,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-23 00:56:17,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:17,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:17,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:17,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:56:17,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:17,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-23 00:56:17,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:17,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:17,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:17,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-23 00:56:17,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:17,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:17,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:17,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-23 00:56:17,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:17,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:17,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:17,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-23 00:56:17,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:17,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:17,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:17,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-23 00:56:17,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:17,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:17,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:17,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-07-23 00:56:17,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:17,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:17,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:17,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2022-07-23 00:56:17,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:17,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:17,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:17,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-07-23 00:56:17,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:17,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:17,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:17,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-07-23 00:56:17,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:17,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:17,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:17,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-07-23 00:56:17,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:17,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:56:17,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:17,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2022-07-23 00:56:17,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:17,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:17,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:17,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-07-23 00:56:17,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:17,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-07-23 00:56:17,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:17,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:17,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:17,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:56:17,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:17,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2022-07-23 00:56:17,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:17,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:56:17,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:17,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-07-23 00:56:17,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:17,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:17,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:17,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-07-23 00:56:17,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:17,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2022-07-23 00:56:17,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:17,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2022-07-23 00:56:17,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:17,802 INFO L134 CoverageAnalysis]: Checked inductivity of 1190 backedges. 2 proven. 123 refuted. 0 times theorem prover too weak. 1065 trivial. 0 not checked. [2022-07-23 00:56:17,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:56:17,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888228791] [2022-07-23 00:56:17,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888228791] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 00:56:17,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [544018889] [2022-07-23 00:56:17,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:56:17,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 00:56:17,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 00:56:17,804 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) [2022-07-23 00:56:17,812 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-23 00:56:26,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:26,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 3431 conjuncts, 14 conjunts are in the unsatisfiable core [2022-07-23 00:56:26,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:56:27,161 INFO L134 CoverageAnalysis]: Checked inductivity of 1190 backedges. 248 proven. 3 refuted. 0 times theorem prover too weak. 939 trivial. 0 not checked. [2022-07-23 00:56:27,161 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 00:56:27,783 INFO L134 CoverageAnalysis]: Checked inductivity of 1190 backedges. 2 proven. 123 refuted. 0 times theorem prover too weak. 1065 trivial. 0 not checked. [2022-07-23 00:56:27,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [544018889] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 00:56:27,784 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 00:56:27,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 8, 8] total 21 [2022-07-23 00:56:27,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268634550] [2022-07-23 00:56:27,785 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 00:56:27,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-07-23 00:56:27,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:56:27,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-07-23 00:56:27,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=362, Unknown=0, NotChecked=0, Total=420 [2022-07-23 00:56:27,789 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) [2022-07-23 00:56:29,804 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 [] [2022-07-23 00:56:31,813 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 [] [2022-07-23 00:56:46,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:56:46,128 INFO L93 Difference]: Finished difference Result 35885 states and 49386 transitions. [2022-07-23 00:56:46,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-07-23 00:56:46,130 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 [2022-07-23 00:56:46,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:56:46,188 INFO L225 Difference]: With dead ends: 35885 [2022-07-23 00:56:46,188 INFO L226 Difference]: Without dead ends: 18458 [2022-07-23 00:56:46,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 919 GetRequests, 879 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 331 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=230, Invalid=1330, Unknown=0, NotChecked=0, Total=1560 [2022-07-23 00:56:46,225 INFO L413 NwaCegarLoop]: 1213 mSDtfsCounter, 1455 mSDsluCounter, 5889 mSDsCounter, 0 mSdLazyCounter, 9748 mSolverCounterSat, 803 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.1s 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, 16.7s IncrementalHoareTripleChecker+Time [2022-07-23 00:56:46,225 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1522 Valid, 7102 Invalid, 10553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [803 Valid, 9748 Invalid, 2 Unknown, 0 Unchecked, 16.7s Time] [2022-07-23 00:56:46,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18458 states. [2022-07-23 00:56:46,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18458 to 17430. [2022-07-23 00:56:46,876 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) [2022-07-23 00:56:46,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17430 states to 17430 states and 23913 transitions. [2022-07-23 00:56:46,928 INFO L78 Accepts]: Start accepts. Automaton has 17430 states and 23913 transitions. Word has length 390 [2022-07-23 00:56:46,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:56:46,928 INFO L495 AbstractCegarLoop]: Abstraction has 17430 states and 23913 transitions. [2022-07-23 00:56:46,928 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) [2022-07-23 00:56:46,929 INFO L276 IsEmpty]: Start isEmpty. Operand 17430 states and 23913 transitions. [2022-07-23 00:56:46,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2022-07-23 00:56:46,937 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:56:46,937 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] [2022-07-23 00:56:46,977 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-23 00:56:47,137 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 [2022-07-23 00:56:47,138 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:56:47,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:56:47,138 INFO L85 PathProgramCache]: Analyzing trace with hash -287414558, now seen corresponding path program 2 times [2022-07-23 00:56:47,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:56:47,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851389873] [2022-07-23 00:56:47,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:56:47,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:56:47,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:47,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:56:47,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:47,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:47,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:47,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:56:47,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:47,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 00:56:47,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:47,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:47,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:47,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:56:47,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:47,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 00:56:47,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:47,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:47,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:47,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:56:47,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:47,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 00:56:47,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:47,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:47,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:47,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:56:47,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:47,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-23 00:56:47,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:47,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:47,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:47,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:56:47,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:47,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-23 00:56:47,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:47,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:47,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:47,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:56:47,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:47,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-23 00:56:47,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:47,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:47,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:47,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:56:47,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:47,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-23 00:56:47,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:47,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:47,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:47,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:56:47,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:47,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-23 00:56:47,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:47,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:47,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:47,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-23 00:56:47,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:47,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:47,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:47,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-23 00:56:47,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:47,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:47,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:47,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-23 00:56:47,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:47,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:47,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:47,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2022-07-23 00:56:47,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:47,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:47,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:47,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-07-23 00:56:47,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:47,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:47,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:47,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-07-23 00:56:47,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:47,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:47,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:47,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2022-07-23 00:56:47,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:47,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:47,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:47,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-07-23 00:56:47,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:47,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:47,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:47,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-07-23 00:56:47,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:47,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:56:47,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:47,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-07-23 00:56:47,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:47,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:47,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:47,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2022-07-23 00:56:47,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:47,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2022-07-23 00:56:47,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:47,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:47,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:47,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:56:47,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:47,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2022-07-23 00:56:47,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:47,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:56:47,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:47,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-07-23 00:56:47,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:47,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:56:47,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:47,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2022-07-23 00:56:47,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:47,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2022-07-23 00:56:47,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:47,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2022-07-23 00:56:47,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:56:47,911 INFO L134 CoverageAnalysis]: Checked inductivity of 1469 backedges. 2 proven. 182 refuted. 0 times theorem prover too weak. 1285 trivial. 0 not checked. [2022-07-23 00:56:47,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:56:47,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851389873] [2022-07-23 00:56:47,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851389873] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 00:56:47,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [848691797] [2022-07-23 00:56:47,912 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-23 00:56:47,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 00:56:47,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 00:56:47,916 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) [2022-07-23 00:56:47,920 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process